{"id":2545,"date":"2026-07-21T15:38:28","date_gmt":"2026-07-21T15:38:28","guid":{"rendered":"https:\/\/www.fhysilicone.com\/?p=2545"},"modified":"2026-07-21T16:04:40","modified_gmt":"2026-07-21T16:04:40","slug":"vyroba-silikonovych-dilu-lisovani-vs-vstrikovani-lsr","status":"publish","type":"post","link":"https:\/\/www.fhysilicone.com\/cs\/silicone-parts-manufacturing-compression-vs-lsr-injection\/","title":{"rendered":"V\u00fdroba silikonov\u00fdch d\u00edl\u016f: lisov\u00e1n\u00ed vs. vst\u0159ikov\u00e1n\u00ed LSR"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Silikonov\u00e9 d\u00edly lze vyr\u00e1b\u011bt n\u011bkolika r\u016fzn\u00fdmi formovac\u00edmi postupy, av\u0161ak lisov\u00e1n\u00ed a vst\u0159ikov\u00e1n\u00ed tekut\u00e9ho silikonov\u00e9ho kau\u010duku pat\u0159\u00ed mezi dv\u011b nej\u010dast\u011bji pou\u017e\u00edvan\u00e9 metody.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Oba procesy umo\u017e\u0148uj\u00ed v\u00fdrobu spolehliv\u00fdch silikonov\u00fdch komponent\u016f, mezi n\u011b\u017e pat\u0159\u00ed t\u011bsn\u011bn\u00ed, ucp\u00e1vky, ventily, membr\u00e1ny, opot\u0159ebiteln\u00e9 d\u00edly, v\u00fdrobky pro p\u00e9\u010di o d\u011bti, zdravotnick\u00e9 komponenty, elektronick\u00e9 sou\u010d\u00e1stky a pr\u016fmyslov\u00e9 sestavy. V\u00fdrazn\u011b se v\u0161ak li\u0161\u00ed v oblasti n\u00e1strojov\u00e9ho vybaven\u00ed, surovin, automatizace, rozm\u011brov\u00e9 stability, rychlosti v\u00fdroby, slo\u017eitosti d\u00edl\u016f a celkov\u00fdch v\u00fdrobn\u00edch n\u00e1klad\u016f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Volba nespr\u00e1vn\u00e9ho procesu m\u016f\u017ee v\u00e9st ke zbyte\u010dn\u00fdm n\u00e1klad\u016fm na n\u00e1stroje, dlouh\u00fdm dob\u00e1m cyklu, nadm\u011brn\u00e9mu o\u0159ezu, nestabiln\u00edm rozm\u011br\u016fm nebo vy\u0161\u0161\u00edm jednotkov\u00fdm n\u00e1klad\u016fm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tato p\u0159\u00edru\u010dka porovn\u00e1v\u00e1 kompresn\u00ed lisov\u00e1n\u00ed silikonu a vst\u0159ikov\u00e1n\u00ed LSR, aby pomohla n\u00e1kupn\u00edm technik\u016fm a v\u00fdvoj\u00e1\u0159\u016fm produkt\u016f vybrat nejvhodn\u011bj\u0161\u00ed postup pro projekt na m\u00edru v oblasti silikonu.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.fhysilicone.com\/wp-content\/uploads\/2026\/07\/Silicone-Parts-Manufacturing-Compression-vs-LSR-Injection-1024x768.png\" alt=\"\" class=\"wp-image-2546\" srcset=\"https:\/\/www.fhysilicone.com\/wp-content\/uploads\/2026\/07\/Silicone-Parts-Manufacturing-Compression-vs-LSR-Injection-1024x768.png 1024w, https:\/\/www.fhysilicone.com\/wp-content\/uploads\/2026\/07\/Silicone-Parts-Manufacturing-Compression-vs-LSR-Injection-300x225.png 300w, https:\/\/www.fhysilicone.com\/wp-content\/uploads\/2026\/07\/Silicone-Parts-Manufacturing-Compression-vs-LSR-Injection-768x576.png 768w, https:\/\/www.fhysilicone.com\/wp-content\/uploads\/2026\/07\/Silicone-Parts-Manufacturing-Compression-vs-LSR-Injection-16x12.png 16w, https:\/\/www.fhysilicone.com\/wp-content\/uploads\/2026\/07\/Silicone-Parts-Manufacturing-Compression-vs-LSR-Injection-600x450.png 600w, https:\/\/www.fhysilicone.com\/wp-content\/uploads\/2026\/07\/Silicone-Parts-Manufacturing-Compression-vs-LSR-Injection.png 1448w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Co je to silikonov\u00e9 kompresn\u00ed lisov\u00e1n\u00ed?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159i lisov\u00e1n\u00ed silikonu kompresn\u00edm lisov\u00e1n\u00edm se pou\u017e\u00edv\u00e1 p\u0159edem odm\u011b\u0159en\u00e9 mno\u017estv\u00ed pevn\u00e9ho silikonov\u00e9ho kau\u010duku, b\u011b\u017en\u011b ozna\u010dovan\u00e9ho jako kau\u010duk s vysokou konzistenc\u00ed (HCR).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Silikonov\u00fd materi\u00e1l se p\u0159iprav\u00ed v po\u017eadovan\u00e9 hmotnosti nebo tvaru a ru\u010dn\u011b \u010di automaticky se vlo\u017e\u00ed do otev\u0159en\u00e9 vyh\u0159\u00edvan\u00e9 formy. Forma se uzav\u0159e a vyvine tlak, \u010d\u00edm\u017e se silikon vytla\u010d\u00ed do dutiny.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Teplo a tlak vytvrzuj\u00ed materi\u00e1l do po\u017eadovan\u00e9ho tvaru d\u00edlu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Typick\u00fd proces lisov\u00e1n\u00ed za tepla zahrnuje:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>M\u00edch\u00e1n\u00ed silikonov\u00e9 sm\u011bsi<\/li>\n\n\n\n<li>P\u0159id\u00e1n\u00ed barviva nebo pot\u0159ebn\u00fdch p\u0159\u00edsad<\/li>\n\n\n\n<li>\u0158ez\u00e1n\u00ed nebo p\u0159edtvarov\u00e1n\u00ed materi\u00e1lu<\/li>\n\n\n\n<li>Vkl\u00e1d\u00e1n\u00ed materi\u00e1lu do formy<\/li>\n\n\n\n<li>Uzav\u0159en\u00ed a vyh\u0159\u00edv\u00e1n\u00ed formy<\/li>\n\n\n\n<li>Vytvrzov\u00e1n\u00ed silikonu<\/li>\n\n\n\n<li>Otev\u0159en\u00ed formy<\/li>\n\n\n\n<li>Demont\u00e1\u017e lisovan\u00e9ho d\u00edlu<\/li>\n\n\n\n<li>O\u0159\u00edznut\u00ed p\u0159etoku<\/li>\n\n\n\n<li>Kontrola a balen\u00ed sou\u010d\u00e1stky<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Pro jednoduch\u00e9 nebo st\u0159edn\u011b slo\u017eit\u00e9 silikonov\u00e9 sou\u010d\u00e1sti se \u010dasto vol\u00ed lisov\u00e1n\u00ed tlakem, zejm\u00e9na pokud ro\u010dn\u00ed objem v\u00fdroby neopodstat\u0148uje po\u0159\u00edzen\u00ed dra\u017e\u0161\u00ed vst\u0159ikovac\u00ed formy.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Co je to vst\u0159ikov\u00e1n\u00ed LSR?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159i vst\u0159ikov\u00e1n\u00ed tekut\u00e9ho silikonov\u00e9ho kau\u010duku se pou\u017e\u00edv\u00e1 dvouslo\u017ekov\u00fd syst\u00e9m tekut\u00e9ho silikonu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ob\u011b slo\u017eky se skladuj\u00ed odd\u011blen\u011b a jsou dopravov\u00e1ny do d\u00e1vkovac\u00edho syst\u00e9mu. Za\u0159\u00edzen\u00ed je odm\u011b\u0159uje, m\u00edch\u00e1 a vst\u0159ikuje do vyh\u0159\u00edvan\u00e9 formy. LSR uvnit\u0159 formy rychle vytvrzuje a pot\u00e9 se z n\u00ed automaticky nebo ru\u010dn\u011b vyj\u00edm\u00e1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Typick\u00fd proces vst\u0159ikov\u00e1n\u00ed LSR zahrnuje:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Dod\u00e1vka dvou komponent\u016f z LSR<\/li>\n\n\n\n<li>Odm\u011b\u0159ov\u00e1n\u00ed slo\u017eek v po\u017eadovan\u00e9m pom\u011bru<\/li>\n\n\n\n<li>P\u0159id\u00e1v\u00e1n\u00ed pigmentu nebo p\u0159\u00edsad<\/li>\n\n\n\n<li>M\u00edch\u00e1n\u00ed materi\u00e1lu<\/li>\n\n\n\n<li>Vst\u0159\u00edknut\u00ed do uzav\u0159en\u00e9 vyh\u0159\u00edvan\u00e9 formy<\/li>\n\n\n\n<li>Vytvrzov\u00e1n\u00ed silikonu<\/li>\n\n\n\n<li>Otev\u0159en\u00ed formy<\/li>\n\n\n\n<li>Vysunut\u00ed nebo vyjmut\u00ed sou\u010d\u00e1sti<\/li>\n\n\n\n<li>Kontrola a balen\u00ed sou\u010d\u00e1stky<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Vst\u0159ikov\u00e1n\u00ed LSR je obzvl\u00e1\u0161t\u011b vhodn\u00e9 pro velkos\u00e9riovou v\u00fdrobu, slo\u017eit\u00e9 geometrie, tenk\u00e9 st\u011bny, p\u0159esn\u00e9 t\u011bsnic\u00ed prvky a automatizovanou v\u00fdrobu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Hlavn\u00ed rozd\u00edl mezi kompresn\u00edm lisov\u00e1n\u00edm a vst\u0159ikov\u00e1n\u00edm LSR<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nejv\u00fdznamn\u011bj\u0161\u00edm rozd\u00edlem je zp\u016fsob, jak\u00fdm se silikon vn\u00e1\u0161\u00ed do formy.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159i lisov\u00e1n\u00ed za tepla se p\u0159edem tvarovan\u00fd kus pevn\u00e9ho silikonu vlo\u017e\u00ed p\u0159\u00edmo do dutiny formy je\u0161t\u011b p\u0159ed jej\u00edm uzav\u0159en\u00edm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159i vst\u0159ikov\u00e1n\u00ed LSR se tekut\u00fd silikon vst\u0159ikuje do zcela uzav\u0159en\u00e9 formy prost\u0159ednictv\u00edm syst\u00e9mu vtok\u016f a vtokov\u00fdch kan\u00e1l\u016f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tento rozd\u00edl m\u00e1 vliv na:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u00fdroba n\u00e1stroj\u016f<\/li>\n\n\n\n<li>Tok materi\u00e1lu<\/li>\n\n\n\n<li>Doba cyklu<\/li>\n\n\n\n<li>Ovl\u00e1d\u00e1n\u00ed blesku<\/li>\n\n\n\n<li>Automatizace<\/li>\n\n\n\n<li>Rozm\u011brov\u00e1 opakovatelnost<\/li>\n\n\n\n<li>Po\u017eadavky na pracovn\u00ed s\u00edlu<\/li>\n\n\n\n<li>Slo\u017eitost sou\u010d\u00e1sti<\/li>\n\n\n\n<li>Objem v\u00fdroby<\/li>\n\n\n\n<li>Jednotkov\u00e1 cena<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u017d\u00e1dn\u00fd z t\u011bchto postup\u016f nen\u00ed obecn\u011b lep\u0161\u00ed. Spr\u00e1vn\u00e1 volba z\u00e1vis\u00ed na konstrukci sou\u010d\u00e1sti a obchodn\u00edch po\u017eadavc\u00edch.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Srovn\u00e1n\u00ed surovin<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Tlakov\u011b lisovan\u00fd silikon<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159i lisov\u00e1n\u00ed za tepla se b\u011b\u017en\u011b pou\u017e\u00edv\u00e1 silikon HCR.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">HCR m\u00e1 konzistenci podobnou \u017ev\u00fdka\u010dce a p\u0159ed formov\u00e1n\u00edm je nutn\u00e9 jej prom\u00edchat, na\u0159ezat nebo p\u0159edem vytvarovat.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Je k dispozici v mnoha form\u00e1ch, mimo jin\u00e9:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Univerz\u00e1ln\u00ed silikon<\/li>\n\n\n\n<li>Silikon s vysokou odolnost\u00ed proti roztr\u017een\u00ed<\/li>\n\n\n\n<li>Vysokoteplotn\u00ed silikon<\/li>\n\n\n\n<li>Elektricky vodiv\u00fd silikon<\/li>\n\n\n\n<li>Silikon s retard\u00e9rem ho\u0159en\u00ed<\/li>\n\n\n\n<li>Silikon ur\u010den\u00fd pro styk s potravinami<\/li>\n\n\n\n<li>L\u00e9ka\u0159sk\u00fd silikon<\/li>\n\n\n\n<li>Fluorosilikon<\/li>\n\n\n\n<li>Silikonov\u00e1 houba<\/li>\n\n\n\n<li>Barevn\u00e9 silikonov\u00e9 sm\u011bsi<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">HCR lze tak\u00e9 vyr\u00e1b\u011bt extruz\u00ed nebo transferov\u00fdm lisov\u00e1n\u00edm, co\u017e z n\u011bj \u010din\u00ed flexibiln\u00ed materi\u00e1lovou platformu pro r\u016fzn\u00e9 v\u00fdrobn\u00ed procesy.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Tekut\u00fd silikonov\u00fd kau\u010duk<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">LSR se dod\u00e1v\u00e1 ve form\u011b dvou kapaln\u00fdch slo\u017eek, kter\u00e9 po \u0159\u00edzen\u00e9m sm\u00edch\u00e1n\u00ed a zah\u0159\u00e1t\u00ed vytvrzuj\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mezi b\u011b\u017en\u00e9 v\u00fdhody materi\u00e1l\u016f LSR pat\u0159\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Stabiln\u00ed d\u00e1vkov\u00e1n\u00ed<\/li>\n\n\n\n<li>Dobr\u00e9 vypln\u011bn\u00ed tenk\u00fdch prvk\u016f<\/li>\n\n\n\n<li>Rovnom\u011brn\u00e9 prom\u00edch\u00e1n\u00ed<\/li>\n\n\n\n<li>Varianty s vysokou \u010distotou<\/li>\n\n\n\n<li>Rychl\u00e9 vytvrzov\u00e1n\u00ed<\/li>\n\n\n\n<li>Automatizovan\u00e9 zpracov\u00e1n\u00ed<\/li>\n\n\n\n<li>Dobr\u00e9 zobrazen\u00ed jemn\u00fdch detail\u016f<\/li>\n\n\n\n<li>Vhodnost pro vst\u0159ikov\u00e1n\u00ed s vlo\u017ekou<\/li>\n\n\n\n<li>Vhodnost pro lisov\u00e1n\u00ed s plastov\u00fdm obalem<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">LSR se hojn\u011b pou\u017e\u00edv\u00e1 v l\u00e9ka\u0159sk\u00fdch p\u0159\u00edstroj\u00edch, automobilov\u00e9 elektronice, konektorech, spot\u0159ebn\u00ed elektronice, v\u00fdrobc\u00edch pro d\u011bti a p\u0159esn\u00fdch t\u011bsnic\u00edch sou\u010d\u00e1stech.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">N\u00e1klady na n\u00e1stroje<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Formovac\u00ed n\u00e1stroje pro lisov\u00e1n\u00ed pod tlakem<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kompresn\u00ed formy jsou obecn\u011b jednodu\u0161\u0161\u00ed ne\u017e vst\u0159ikovac\u00ed formy pro LSR.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mohou po\u017eadovat:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Formovac\u00ed dutiny<\/li>\n\n\n\n<li>Topn\u00e9 kan\u00e1ly<\/li>\n\n\n\n<li>Funkce zarovn\u00e1n\u00ed<\/li>\n\n\n\n<li>Bleskov\u00e9 dr\u00e1\u017eky<\/li>\n\n\n\n<li>Odv\u011btr\u00e1v\u00e1n\u00ed<\/li>\n\n\n\n<li>Ru\u010dn\u00ed p\u0159\u00edstup pro demont\u00e1\u017e d\u00edl\u016f<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Formy pro lisov\u00e1n\u00ed maj\u00ed \u010dasto ni\u017e\u0161\u00ed po\u010d\u00e1te\u010dn\u00ed n\u00e1klady na n\u00e1stroje, proto\u017ee ne v\u017edy vy\u017eaduj\u00ed slo\u017eit\u00e9 syst\u00e9my studen\u00fdch vtok\u016f, p\u0159esn\u00e9 vst\u0159ikovac\u00ed vtoky nebo automatick\u00e9 vyhazov\u00e1n\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00edky tomu m\u016f\u017ee b\u00fdt lisov\u00e1n\u00ed pod tlakem zaj\u00edmavou volbou pro:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Prototypy<\/li>\n\n\n\n<li>Malos\u00e9riov\u00e1 v\u00fdroba<\/li>\n\n\n\n<li>V\u00fdroba st\u0159edn\u00edho objemu<\/li>\n\n\n\n<li>Velk\u00e9 silikonov\u00e9 d\u00edly<\/li>\n\n\n\n<li>Jednoduch\u00e1 t\u011bsn\u011bn\u00ed<\/li>\n\n\n\n<li>V\u00fdrobky s nejistou budouc\u00ed popt\u00e1vkou<\/li>\n\n\n\n<li>Projekty s omezen\u00fdm rozpo\u010dtem na v\u00fdrobn\u00ed n\u00e1stroje<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ni\u017e\u0161\u00ed n\u00e1klady na n\u00e1stroje v\u0161ak automaticky neznamenaj\u00ed ni\u017e\u0161\u00ed celkov\u00e9 n\u00e1klady na projekt. Vy\u0161\u0161\u00ed mzdov\u00e9 n\u00e1klady a del\u0161\u00ed v\u00fdrobn\u00ed cykly mohou zp\u016fsobit, \u017ee lisov\u00e1n\u00ed za tepla bude p\u0159i v\u011bt\u0161\u00edch objemech v\u00fdroby dra\u017e\u0161\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Formy pro vst\u0159ikov\u00e1n\u00ed LSR<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vst\u0159ikovac\u00ed formy pro LSR jsou obecn\u011b slo\u017eit\u011bj\u0161\u00ed a vy\u017eaduj\u00ed vy\u0161\u0161\u00ed p\u0159esnost p\u0159i v\u00fdrob\u011b.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mezi n\u011b mohou pat\u0159it:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Syst\u00e9my se studen\u00fdmi kan\u00e1ly<\/li>\n\n\n\n<li>P\u0159esn\u00e9 ventilov\u00e9 vtoky<\/li>\n\n\n\n<li>Vyh\u0159\u00edvan\u00e9 komory<\/li>\n\n\n\n<li>Vakuov\u00e9 syst\u00e9my<\/li>\n\n\n\n<li>T\u011bsn\u00e9 uzav\u00edrac\u00ed plochy<\/li>\n\n\n\n<li>Automatick\u00e9 vysunut\u00ed<\/li>\n\n\n\n<li>Robotick\u00e1 manipula\u010dn\u00ed rozhran\u00ed<\/li>\n\n\n\n<li>Syst\u00e9my pro vkl\u00e1d\u00e1n\u00ed n\u00e1pln\u00ed<\/li>\n\n\n\n<li>Pokro\u010dil\u00e9 odv\u011btr\u00e1v\u00e1n\u00ed<\/li>\n\n\n\n<li>D\u011bl\u00edc\u00ed \u010d\u00e1ry s n\u00edzk\u00fdm odleskem<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Po\u010d\u00e1te\u010dn\u00ed investice do n\u00e1stroj\u016f je sice obvykle vy\u0161\u0161\u00ed, ale tento proces m\u016f\u017ee p\u0159i s\u00e9riov\u00e9 v\u00fdrob\u011b p\u0159in\u00e9st ni\u017e\u0161\u00ed n\u00e1roky na pracovn\u00ed s\u00edlu a krat\u0161\u00ed v\u00fdrobn\u00ed cykly.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pou\u017eit\u00ed n\u00e1stroj\u016f z LSR se \u010dasto vyplat\u00ed, pokud:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ro\u010dn\u00ed popt\u00e1vka je vysok\u00e1<\/li>\n\n\n\n<li>Tato sou\u010d\u00e1stka je technicky slo\u017eit\u00e1<\/li>\n\n\n\n<li>Je nutn\u00e1 pevn\u00e1 konzistence<\/li>\n\n\n\n<li>Automatizace je d\u016fle\u017eit\u00e1<\/li>\n\n\n\n<li>D\u00edl m\u00e1 tenk\u00e9 st\u011bny nebo drobn\u00e9 detaily<\/li>\n\n\n\n<li>Flash mus\u00ed b\u00fdt p\u0159\u00edsn\u011b kontrolov\u00e1n<\/li>\n\n\n\n<li>Tento v\u00fdrobek m\u00e1 dlouhou \u017eivotnost<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Objem v\u00fdroby<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Objem v\u00fdroby je jedn\u00edm z nejd\u016fle\u017eit\u011bj\u0161\u00edch faktor\u016f p\u0159i rozhodov\u00e1n\u00ed mezi t\u011bmito dv\u011bma procesy.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Vst\u0159ikov\u00e1n\u00ed pro men\u0161\u00ed objemy v\u00fdroby<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Lisov\u00e1n\u00ed pod tlakem je \u010dasto ekonomi\u010dt\u011bj\u0161\u00ed u projekt\u016f, kter\u00e9:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>N\u00edzk\u00e9 ro\u010dn\u00ed objemy<\/li>\n\n\n\n<li>Nepravideln\u00e9 harmonogramy objedn\u00e1vek<\/li>\n\n\n\n<li>N\u011bkolik vlastn\u00edch verz\u00ed<\/li>\n\n\n\n<li>Kr\u00e1tk\u00e9 \u017eivotn\u00ed cykly v\u00fdrobk\u016f<\/li>\n\n\n\n<li>Rozm\u011bry velk\u00fdch d\u00edl\u016f<\/li>\n\n\n\n<li>Omezen\u00e9 rozpo\u010dty na n\u00e1stroje<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ni\u017e\u0161\u00ed po\u010d\u00e1te\u010dn\u00ed investice m\u016f\u017ee sn\u00ed\u017eit riziko projektu v ran\u00e9 f\u00e1zi v\u00fdvoje produktu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Vst\u0159ikov\u00e1n\u00ed LSR pro v\u011bt\u0161\u00ed objemy<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vst\u0159ikov\u00e1n\u00ed LSR je obvykle cenov\u011b v\u00fdhodn\u011bj\u0161\u00ed, pokud je objem v\u00fdroby dostate\u010dn\u011b vysok\u00fd, aby bylo mo\u017en\u00e9 n\u00e1klady na v\u00fdrobu forem rozlo\u017eit na velk\u00fd po\u010det d\u00edl\u016f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Je vhodn\u00fd pro:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kontinu\u00e1ln\u00ed s\u00e9riov\u00e1 v\u00fdroba<\/li>\n\n\n\n<li>Automatizovan\u00e1 v\u00fdroba<\/li>\n\n\n\n<li>V\u00edcekomorov\u00e9 lisovac\u00ed formy<\/li>\n\n\n\n<li>Stabiln\u00ed dlouhodob\u00e9 programy<\/li>\n\n\n\n<li>V\u00fdrobky, u nich\u017e je t\u0159eba pravideln\u011b zad\u00e1vat opakovan\u00e9 objedn\u00e1vky<\/li>\n\n\n\n<li>Vysoce v\u00fdkonn\u00e9 zdravotnick\u00e9 nebo spot\u0159ebitelsk\u00e9 v\u00fdrobky<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Bod rentability z\u00e1vis\u00ed na velikosti d\u00edlu, po\u010dtu dutin, d\u00e9lce cyklu, n\u00e1ro\u010dnosti na pracovn\u00ed s\u00edlu, spot\u0159eb\u011b materi\u00e1lu, slo\u017eitosti n\u00e1stroj\u016f a p\u0159edpokl\u00e1dan\u00e9 \u017eivotnosti v\u00fdrobku.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00fdmy odpov\u011bdn\u00e9 za zad\u00e1v\u00e1n\u00ed zak\u00e1zek by m\u011bly porovn\u00e1vat celkov\u00e9 n\u00e1klady projektu, m\u00edsto aby vyb\u00edraly postup pouze na z\u00e1klad\u011b ceny n\u00e1stroj\u016f.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Doba cyklu<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Cyklus lisov\u00e1n\u00ed pod tlakem<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Cykly lisov\u00e1n\u00ed s kompres\u00ed jsou \u010dasto del\u0161\u00ed, proto\u017ee obsluha mus\u00ed p\u0159ed ka\u017ed\u00fdm cyklem vlo\u017eit materi\u00e1l do stroje.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u016f\u017ee b\u00fdt zapot\u0159eb\u00ed v\u00edce \u010dasu na:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>P\u0159edtvarov\u00e1n\u00ed materi\u00e1lu<\/li>\n\n\n\n<li>Otev\u0159en\u00ed formy<\/li>\n\n\n\n<li>Ru\u010dn\u00ed vkl\u00e1d\u00e1n\u00ed<\/li>\n\n\n\n<li>Demont\u00e1\u017e lisovan\u00e9ho d\u00edlu<\/li>\n\n\n\n<li>\u010ci\u0161t\u011bn\u00ed povrchu formy<\/li>\n\n\n\n<li>Odd\u011blen\u00ed blesku<\/li>\n\n\n\n<li>O\u0159ez\u00e1n\u00ed sou\u010d\u00e1stky<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Doba vytvrzov\u00e1n\u00ed se m\u016f\u017ee prodlou\u017eit tak\u00e9 u siln\u00fdch profil\u016f nebo velk\u00fdch d\u00edl\u016f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Cyklus vst\u0159ikov\u00e1n\u00ed LSR<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vst\u0159ikov\u00e1n\u00ed LSR obvykle umo\u017e\u0148uje krat\u0161\u00ed a rovnom\u011brn\u011bj\u0161\u00ed cykly.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Materi\u00e1l se vst\u0159ikuje p\u0159\u00edmo do uzav\u0159en\u00e9 formy, \u010d\u00edm\u017e se zkracuje doba ru\u010dn\u00edho pln\u011bn\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Doba cyklu lze zkr\u00e1tit n\u00e1sleduj\u00edc\u00edmi zp\u016fsoby:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Rychl\u00e9 vst\u0159ikov\u00e1n\u00ed materi\u00e1lu<\/li>\n\n\n\n<li>Rychl\u00e9 vytvrzov\u00e1n\u00ed<\/li>\n\n\n\n<li>V\u00edcekomorov\u00e9 formy<\/li>\n\n\n\n<li>Automatick\u00e9 vysunut\u00ed<\/li>\n\n\n\n<li>Robotick\u00e1 manipulace<\/li>\n\n\n\n<li>Automatizovan\u00e1 kontrola<\/li>\n\n\n\n<li>Syst\u00e9my se studen\u00fdmi kan\u00e1ly<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">U projekt\u016f s velk\u00fdm objemem v\u00fdroby m\u016f\u017ee zkr\u00e1cen\u00ed doby cyklu v\u00fdrazn\u011b sn\u00ed\u017eit jednotkov\u00e9 n\u00e1klady.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pr\u00e1ce a automatizace<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Lisov\u00e1n\u00ed pod tlakem<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Lisov\u00e1n\u00ed za tepla \u010dasto vy\u017eaduje v\u00edce ru\u010dn\u00ed pr\u00e1ce.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Provozovatel\u00e9 mohou pot\u0159ebovat:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Na\u0159ezat a zv\u00e1\u017eit materi\u00e1l<\/li>\n\n\n\n<li>Vlo\u017ete formu<\/li>\n\n\n\n<li>Polohovac\u00ed vlo\u017eky<\/li>\n\n\n\n<li>Demont\u00e1\u017e d\u00edl\u016f<\/li>\n\n\n\n<li>Samostatn\u00fd blesk<\/li>\n\n\n\n<li>O\u0159\u00edznout okraje<\/li>\n\n\n\n<li>Zkontrolujte ka\u017edou sou\u010d\u00e1st<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00edra n\u00e1ro\u010dnosti na pracovn\u00ed s\u00edlu z\u00e1vis\u00ed na konstrukci formy a v\u00fdrobn\u00edm za\u0159\u00edzen\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u011bkter\u00e9 operace lisov\u00e1n\u00ed s kompres\u00ed lze automatizovat, av\u0161ak \u00fapln\u00e1 automatizace je obecn\u011b n\u00e1ro\u010dn\u011bj\u0161\u00ed ne\u017e u vst\u0159ikov\u00e1n\u00ed LSR.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Vst\u0159ikov\u00e1n\u00ed LSR<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vst\u0159ikov\u00e1n\u00ed LSR umo\u017e\u0148uje vysoce automatizovan\u00fd v\u00fdrobn\u00ed proces.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Automatizace m\u016f\u017ee zahrnovat:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>D\u00e1vkov\u00e1n\u00ed materi\u00e1lu<\/li>\n\n\n\n<li>D\u00e1vkov\u00e1n\u00ed pigmentu<\/li>\n\n\n\n<li>Injekce<\/li>\n\n\n\n<li>Vkl\u00e1d\u00e1n\u00ed dat<\/li>\n\n\n\n<li>Demont\u00e1\u017e d\u00edlu<\/li>\n\n\n\n<li>Robotick\u00fd p\u0159enos<\/li>\n\n\n\n<li>Kamerov\u00e1 prohl\u00eddka<\/li>\n\n\n\n<li>N\u00e1sledn\u00e9 zpracov\u00e1n\u00ed<\/li>\n\n\n\n<li>Balen\u00ed<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Automatizace m\u016f\u017ee sn\u00ed\u017eit:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ru\u010dn\u00ed manipulace<\/li>\n\n\n\n<li>Riziko kontaminace<\/li>\n\n\n\n<li>Rozd\u00edly v pracovn\u00ed s\u00edle<\/li>\n\n\n\n<li>Nesoulad ve v\u00fdvoji<\/li>\n\n\n\n<li>Dlouhodob\u00e9 jednotkov\u00e9 n\u00e1klady<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">To je obzvl\u00e1\u0161t\u011b d\u016fle\u017eit\u00e9 pro aplikace v oblasti zdravotnictv\u00ed, automobilov\u00e9ho pr\u016fmyslu a ve velkos\u00e9riov\u00e9 elektronice.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Slo\u017eitost sou\u010d\u00e1sti<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Mo\u017enosti lisov\u00e1n\u00ed pod tlakem<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kompresn\u00ed lisov\u00e1n\u00ed je vhodn\u00e9 pro mnoho jednoduch\u00fdch i st\u0159edn\u011b slo\u017eit\u00fdch d\u00edl\u016f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mezi typick\u00e9 sou\u010d\u00e1sti pat\u0159\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>O-krou\u017eky<\/li>\n\n\n\n<li>Ploch\u00e9 t\u011bsn\u011bn\u00ed<\/li>\n\n\n\n<li>T\u011bsnic\u00ed podlo\u017eky<\/li>\n\n\n\n<li>Silikonov\u00e9 podlo\u017eky<\/li>\n\n\n\n<li>Kl\u00e1vesnice<\/li>\n\n\n\n<li>Podlo\u017eky<\/li>\n\n\n\n<li>Ob\u00e1lky<\/li>\n\n\n\n<li>Ruk\u00e1vy<\/li>\n\n\n\n<li>Velk\u00e9 lisovan\u00e9 krou\u017eky<\/li>\n\n\n\n<li>Jednoduch\u00e9 membr\u00e1ny<\/li>\n\n\n\n<li>Siln\u00e9 lisovan\u00e9 d\u00edly<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tento postup v\u0161ak nemus\u00ed b\u00fdt nejvhodn\u011bj\u0161\u00ed pro:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Velmi tenk\u00e9 st\u011bny<\/li>\n\n\n\n<li>Hlubok\u00e9 pod\u0159\u00edznut\u00ed<\/li>\n\n\n\n<li>Naprosto drobn\u00e9 detaily<\/li>\n\n\n\n<li>Slo\u017eit\u00e9 vnit\u0159n\u00ed kan\u00e1ly<\/li>\n\n\n\n<li>Velmi p\u0159\u00edsn\u00e9 po\u017eadavky na blesk<\/li>\n\n\n\n<li>Vysoce automatizovan\u00e9 vst\u0159ikov\u00e1n\u00ed s vlo\u017ekami<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pohyb materi\u00e1lu uvnit\u0159 formy m\u016f\u017ee b\u00fdt h\u016f\u0159e kontrolovateln\u00fd ne\u017e p\u0159i vst\u0159ikov\u00e1n\u00ed, zejm\u00e9na u slo\u017eit\u00fdch geometri\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Mo\u017enosti vst\u0159ikov\u00e1n\u00ed LSR<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">LSR snadno pronik\u00e1 do mal\u00fdch dutin a tenk\u00fdch \u010d\u00e1st\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00edky tomu je vhodn\u00fd pro:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tenk\u00e9 membr\u00e1ny<\/li>\n\n\n\n<li>Vlastnosti mikroizolace<\/li>\n\n\n\n<li>Flexibiln\u00ed ventily<\/li>\n\n\n\n<li>Slo\u017eit\u00e9 l\u00e9ka\u0159sk\u00e9 sou\u010d\u00e1stky<\/li>\n\n\n\n<li>T\u011bsn\u011bn\u00ed konektor\u016f<\/li>\n\n\n\n<li>V\u00edcevrstv\u00e1 t\u011bsn\u011bn\u00ed<\/li>\n\n\n\n<li>Mal\u00e9 p\u0159esn\u00e9 sou\u010d\u00e1stky<\/li>\n\n\n\n<li>Plastov\u00e9 d\u00edly s p\u0159etvarovan\u00fdm povlakem<\/li>\n\n\n\n<li>Kovov\u00e9 vlo\u017eky s p\u0159etvarovan\u00fdm obalem<\/li>\n\n\n\n<li>Multifunk\u010dn\u00ed integrovan\u00e9 komponenty<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vst\u0159ikov\u00e1n\u00ed LSR umo\u017e\u0148uje sn\u00ed\u017eit po\u010det samostatn\u00fdch sou\u010d\u00e1st\u00ed t\u00edm, \u017ee do jednoho lisovan\u00e9ho d\u00edlu spojuje funkce t\u011bsn\u011bn\u00ed, tlumen\u00ed n\u00e1raz\u016f, uchopen\u00ed, izolace a polohov\u00e1n\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Rozm\u011brov\u00e1 konzistence<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Tlakov\u011b lisovan\u00e9 d\u00edly<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kompresn\u00ed lisov\u00e1n\u00ed umo\u017e\u0148uje dos\u00e1hnout spolehliv\u00fdch rozm\u011br\u016f, av\u0161ak odchylky mohou b\u00fdt ovlivn\u011bny n\u00e1sleduj\u00edc\u00edmi faktory:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Hmotnost materi\u00e1lu<\/li>\n\n\n\n<li>Tvar p\u0159edlisku<\/li>\n\n\n\n<li>Poloha p\u0159i nakl\u00e1d\u00e1n\u00ed<\/li>\n\n\n\n<li>Teplota formy<\/li>\n\n\n\n<li>Doba vytvrzov\u00e1n\u00ed<\/li>\n\n\n\n<li>Technika obsluhy<\/li>\n\n\n\n<li>Tlou\u0161\u0165ka blesku<\/li>\n\n\n\n<li>Zp\u016fsob vyj\u00edm\u00e1n\u00ed z formy<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">U velk\u00fdch pru\u017en\u00fdch sou\u010d\u00e1st\u00ed m\u016f\u017ee b\u00fdt rovn\u011b\u017e obt\u00ed\u017en\u00e9 zajistit konzistentn\u00ed m\u011b\u0159en\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Vst\u0159ikovan\u00e9 d\u00edly z LSR<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vst\u0159ikov\u00e1n\u00ed LSR obecn\u011b zaji\u0161\u0165uje lep\u0161\u00ed opakovatelnost procesu, proto\u017ee materi\u00e1l je automaticky d\u00e1vkov\u00e1n a vst\u0159ikov\u00e1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mezi v\u00fdhody mohou pat\u0159it:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u00edce jednotn\u00e1 velikost v\u00fdst\u0159el\u016f<\/li>\n\n\n\n<li>Stabiln\u00ed v\u00fdpl\u0148 dutiny<\/li>\n\n\n\n<li>Regulovan\u00fd vst\u0159ikovac\u00ed tlak<\/li>\n\n\n\n<li>\u0158\u00edzen\u00e9 podm\u00ednky vytvrzov\u00e1n\u00ed<\/li>\n\n\n\n<li>Omezen\u00fd vliv obsluhy<\/li>\n\n\n\n<li>Lep\u0161\u00ed konzistence p\u0159i v\u00fdrob\u011b s v\u00edce formovac\u00edmi dutinami<\/li>\n\n\n\n<li>Zlep\u0161en\u00e1 opakovatelnost tenk\u00fdch prvk\u016f<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Silikon v\u0161ak z\u016fst\u00e1v\u00e1 pru\u017en\u00fdm elastomerem. Tolerance mus\u00ed i nad\u00e1le zohled\u0148ovat chov\u00e1n\u00ed materi\u00e1lu a pou\u017eitou m\u011b\u0159ic\u00ed metodu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159\u00edli\u0161 \u00fazk\u00e9 tolerance mohou zv\u00fd\u0161it n\u00e1klady na n\u00e1stroje a pod\u00edl zmetk\u016f, ani\u017e by do\u0161lo ke zlep\u0161en\u00ed funk\u010dnosti v\u00fdrobku.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ovl\u00e1d\u00e1n\u00ed blesku<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Flash je tenk\u00e1 vrstva p\u0159ebyte\u010dn\u00e9ho silikonu, kter\u00e1 se tvo\u0159\u00ed na d\u011blic\u00ed linii formy nebo kolem vlo\u017eek.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">P\u0159ebytek materi\u00e1lu p\u0159i lisov\u00e1n\u00ed<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159i lisov\u00e1n\u00ed pod tlakem \u010dasto vznik\u00e1 v\u00edce ot\u0159ep\u016f, proto\u017ee p\u0159edtvarovan\u00fd materi\u00e1l je stla\u010dov\u00e1n mezi povrchy formy.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Forma m\u016f\u017ee b\u00fdt z\u00e1m\u011brn\u011b opat\u0159ena dr\u00e1\u017ekami na odvod p\u0159ebytku materi\u00e1lu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u011bkter\u00e9 sou\u010d\u00e1sti mohou vy\u017eadovat:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ru\u010dn\u00ed o\u0159ez\u00e1v\u00e1n\u00ed<\/li>\n\n\n\n<li>Mechanick\u00e9 o\u0159ez\u00e1v\u00e1n\u00ed<\/li>\n\n\n\n<li>Cryogenic deflashing<\/li>\n\n\n\n<li>Die cutting<\/li>\n\n\n\n<li>Secondary inspection<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">For simple industrial components, a small amount of controlled flash may be acceptable.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">LSR Injection Flash<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">LSR injection molds can be designed for very low flash.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Because the material is injected into a closed mold, the process can control material volume more precisely.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Low-flash results depend on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mold precision<\/li>\n\n\n\n<li>Shutoff design<\/li>\n\n\n\n<li>Clamping force<\/li>\n\n\n\n<li>Injection pressure<\/li>\n\n\n\n<li>Odv\u011btr\u00e1v\u00e1n\u00ed<\/li>\n\n\n\n<li>Mold wear<\/li>\n\n\n\n<li>Material viscosity<\/li>\n\n\n\n<li>Process control<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Low-flash tooling is particularly valuable for seals, valves, medical parts, and small precision components.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Material Waste<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Compression Molding Waste<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Compression molding may generate waste from:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Excess preform material<\/li>\n\n\n\n<li>Flash<\/li>\n\n\n\n<li>Trimming<\/li>\n\n\n\n<li>Startup adjustment<\/li>\n\n\n\n<li>Rejected parts<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Accurate material preforming can reduce waste, but some flash is often unavoidable.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">LSR Injection Waste<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">LSR injection molding can provide efficient material usage, especially when cold-runner or valve-gate systems are used.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Potential waste sources include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Purging<\/li>\n\n\n\n<li>Startup material<\/li>\n\n\n\n<li>Gate remnants<\/li>\n\n\n\n<li>Rejected parts<\/li>\n\n\n\n<li>Material remaining in equipment during shutdown<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A well-designed LSR process can produce little runner waste compared with conventional thermoplastic injection molding.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Surface Quality<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Both processes can produce smooth silicone surfaces, but the final appearance depends on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mold finish<\/li>\n\n\n\n<li>Material formulation<\/li>\n\n\n\n<li>Cure conditions<\/li>\n\n\n\n<li>Odv\u011btr\u00e1v\u00e1n\u00ed<\/li>\n\n\n\n<li>Part geometry<\/li>\n\n\n\n<li>Pigment<\/li>\n\n\n\n<li>Mold cleanliness<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Compression-Molded Surface<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Compression molding can produce:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Matte surfaces<\/li>\n\n\n\n<li>Polished surfaces<\/li>\n\n\n\n<li>Textured surfaces<\/li>\n\n\n\n<li>Lisovan\u00e1 loga<\/li>\n\n\n\n<li>Functional ribs<\/li>\n\n\n\n<li>Decorative patterns<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Potential surface defects include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Flow marks<\/li>\n\n\n\n<li>Trapped air<\/li>\n\n\n\n<li>Incomplete filling<\/li>\n\n\n\n<li>Contamination<\/li>\n\n\n\n<li>Uneven color<\/li>\n\n\n\n<li>Flash<\/li>\n\n\n\n<li>Parting-line mismatch<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">LSR Injection Surface<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">LSR can reproduce fine mold details and surface textures.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It is often selected when the part requires:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High cosmetic consistency<\/li>\n\n\n\n<li>Thin sealing lips<\/li>\n\n\n\n<li>Optical transparency<\/li>\n\n\n\n<li>Controlled surface texture<\/li>\n\n\n\n<li>Fine microfeatures<\/li>\n\n\n\n<li>Consistent multi-cavity appearance<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Mold venting and vacuum control are especially important for avoiding trapped air.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Insert Molding and Overmolding<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Compression Insert Molding<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Metal or plastic inserts can be placed into a compression mold before the silicone is loaded.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This may be suitable for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Simple metal insert parts<\/li>\n\n\n\n<li>Reinforced gaskets<\/li>\n\n\n\n<li>Low-volume assemblies<\/li>\n\n\n\n<li>Thick overmolded sections<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">However, manual insert positioning can increase labor and variation.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">LSR Insert Molding<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">LSR injection molding is particularly suitable for automated insert molding and overmolding.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Common substrates include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Metal pins<\/li>\n\n\n\n<li>Stainless-steel parts<\/li>\n\n\n\n<li>Plastic housings<\/li>\n\n\n\n<li>Elektrick\u00e9 konektory<\/li>\n\n\n\n<li>Cables<\/li>\n\n\n\n<li>Sensor components<\/li>\n\n\n\n<li>Electronic assemblies<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Bonding may be achieved through:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mechanical locking<\/li>\n\n\n\n<li>Undercuts<\/li>\n\n\n\n<li>Holes<\/li>\n\n\n\n<li>Textura povrchu<\/li>\n\n\n\n<li>Self-bonding LSR<\/li>\n\n\n\n<li>Primer<\/li>\n\n\n\n<li>Surface treatment<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The substrate must tolerate the molding temperature and process conditions.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Bonding LSR to Plastic<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">LSR can be overmolded onto selected thermoplastics.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Common design considerations include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Plastic melting temperature<\/li>\n\n\n\n<li>Tepeln\u00e1 odolnost<\/li>\n\n\n\n<li>Chemical compatibility<\/li>\n\n\n\n<li>Surface cleanliness<\/li>\n\n\n\n<li>Molded-in locking features<\/li>\n\n\n\n<li>Adhesion requirements<\/li>\n\n\n\n<li>Primer use<\/li>\n\n\n\n<li>Part deformation<\/li>\n\n\n\n<li>Shrinkage difference<\/li>\n\n\n\n<li>Sterilization effects<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A strong bond should not be assumed based only on the general plastic family. The exact plastic grade, additives, colorants, and surface condition can affect adhesion.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Prototype bonding tests are recommended before production tooling is approved.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Suitable Applications for Compression Molding<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Compression molding is often suitable for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ploch\u00e9 silikonov\u00e9 t\u011bsn\u011bn\u00ed<\/li>\n\n\n\n<li>Large sealing rings<\/li>\n\n\n\n<li>Silicone sheets and pads<\/li>\n\n\n\n<li>Industrial cushioning components<\/li>\n\n\n\n<li>Simple silicone covers<\/li>\n\n\n\n<li>Kl\u00e1vesnice<\/li>\n\n\n\n<li>Large custom O-rings<\/li>\n\n\n\n<li>Low-volume medical components<\/li>\n\n\n\n<li>Prototype silicone parts<\/li>\n\n\n\n<li>Sports and fitness products<\/li>\n\n\n\n<li>Household silicone products<\/li>\n\n\n\n<li>Thick silicone components<\/li>\n\n\n\n<li>Custom color parts<\/li>\n\n\n\n<li>Electrically conductive silicone pads<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">It is particularly attractive when the part is large, relatively simple, and produced in low or moderate quantities.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Suitable Applications for LSR Injection Molding<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">LSR injection molding is often suitable for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Medical valves<\/li>\n\n\n\n<li>Tenk\u00e9 membr\u00e1ny<\/li>\n\n\n\n<li>T\u011bsn\u011bn\u00ed konektor\u016f<\/li>\n\n\n\n<li>Waterproof electronic seals<\/li>\n\n\n\n<li>Automotive sensor seals<\/li>\n\n\n\n<li>Baby bottle components<\/li>\n\n\n\n<li>Respiratory components<\/li>\n\n\n\n<li>Wearable-device parts<\/li>\n\n\n\n<li>Precision O-rings<\/li>\n\n\n\n<li>V\u00edcevrstv\u00e1 t\u011bsn\u011bn\u00ed<\/li>\n\n\n\n<li>Micro-molded silicone components<\/li>\n\n\n\n<li>Plastic-to-silicone overmolding<\/li>\n\n\n\n<li>Metal-to-silicone insert molding<\/li>\n\n\n\n<li>High-volume food-contact components<\/li>\n\n\n\n<li>Automated medical production<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">It is especially valuable when the project requires high output, precise details, low flash, or automated handling.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Medical and Healthcare Considerations<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Both HCR and LSR can be used for healthcare components when the material and process are properly selected and validated.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mezi d\u016fle\u017eit\u00e9 faktory pat\u0159\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Exact material grade<\/li>\n\n\n\n<li>Patient-contact type<\/li>\n\n\n\n<li>Contact duration<\/li>\n\n\n\n<li>Biocompatibility evaluation<\/li>\n\n\n\n<li>Sterilization method<\/li>\n\n\n\n<li>Post-curing<\/li>\n\n\n\n<li>Cleanroom requirements<\/li>\n\n\n\n<li>Lot traceability<\/li>\n\n\n\n<li>Mold-release control<\/li>\n\n\n\n<li>Kontrola kontaminace<\/li>\n\n\n\n<li>Balen\u00ed<\/li>\n\n\n\n<li>Change notification<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">LSR injection molding is often preferred for high-volume medical components because it can reduce manual material handling and support controlled automated production.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Compression molding may still be suitable for lower-volume or larger healthcare silicone components.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The process should be selected according to risk, geometry, production requirements, and validation needs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Food-Contact Applications<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Both processes can produce food-contact silicone parts.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mezi typick\u00e9 oblasti pou\u017eit\u00ed pat\u0159\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T\u011bsnic\u00ed krou\u017eky<\/li>\n\n\n\n<li>Beverage valves<\/li>\n\n\n\n<li>Kitchen gaskets<\/li>\n\n\n\n<li>Bottle components<\/li>\n\n\n\n<li>Appliance seals<\/li>\n\n\n\n<li>Silicone sleeves<\/li>\n\n\n\n<li>Food-processing equipment parts<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The buyer should specify:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Target market<\/li>\n\n\n\n<li>Contact type<\/li>\n\n\n\n<li>Contact temperature<\/li>\n\n\n\n<li>Contact duration<\/li>\n\n\n\n<li>Required declarations<\/li>\n\n\n\n<li>Migration testing<\/li>\n\n\n\n<li>Color requirements<\/li>\n\n\n\n<li>Odor requirements<\/li>\n\n\n\n<li>Cleaning conditions<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The manufacturing process should prevent contamination from unsuitable pigments, lubricants, release agents, and packaging materials.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Compression Set and Functional Performance<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The molding method can influence the final properties of the silicone component through cure conditions and post-processing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Important properties may include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tvrdost<\/li>\n\n\n\n<li>Pevnost v tahu<\/li>\n\n\n\n<li>Elongation<\/li>\n\n\n\n<li>Tear strength<\/li>\n\n\n\n<li>Trval\u00e1 deformace po stla\u010den\u00ed<\/li>\n\n\n\n<li>Rebound<\/li>\n\n\n\n<li>Sealing force<\/li>\n\n\n\n<li>Fatigue resistance<\/li>\n\n\n\n<li>Surface friction<\/li>\n\n\n\n<li>Thermal aging<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Material data sheets are typically based on standardized test samples. Actual molded parts may perform differently because of geometry, thickness, cure history, and operating conditions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Functional testing should use production-equivalent components.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mold Design Differences<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Compression Mold Design<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Compression molds must control:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Material placement<\/li>\n\n\n\n<li>Cavity filling<\/li>\n\n\n\n<li>Flash direction<\/li>\n\n\n\n<li>Air release<\/li>\n\n\n\n<li>Parting lines<\/li>\n\n\n\n<li>Demolding<\/li>\n\n\n\n<li>Cavity balance<\/li>\n\n\n\n<li>Heat distribution<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The preform shape and weight can strongly affect part quality.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">LSR Injection Mold Design<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">LSR injection molds must control:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Runner temperature<\/li>\n\n\n\n<li>Gate design<\/li>\n\n\n\n<li>Injection balance<\/li>\n\n\n\n<li>Vacuum<\/li>\n\n\n\n<li>Odv\u011btr\u00e1v\u00e1n\u00ed<\/li>\n\n\n\n<li>Cavity heating<\/li>\n\n\n\n<li>Shutoff accuracy<\/li>\n\n\n\n<li>Flash<\/li>\n\n\n\n<li>Ejection<\/li>\n\n\n\n<li>Insert position<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Because uncured LSR can flow into extremely small gaps, mold precision is critical.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A small mismatch or damaged shutoff can create flash.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Prototype Development<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Compression molding is often selected for early prototype production because the tooling can be simpler and less expensive.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, a compression-molded prototype may not fully represent an LSR injection-molded production part.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Differences may occur in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Parting lines<\/li>\n\n\n\n<li>Gate marks<\/li>\n\n\n\n<li>Povrchov\u00e1 \u00faprava<\/li>\n\n\n\n<li>Flash<\/li>\n\n\n\n<li>Tok materi\u00e1lu<\/li>\n\n\n\n<li>Cure conditions<\/li>\n\n\n\n<li>Rozm\u011bry<\/li>\n\n\n\n<li>Mechanical properties<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">When the final product will use LSR injection molding, prototype samples should eventually be produced using production-intent LSR and representative molding conditions.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Tool Life and Maintenance<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Both mold types require regular maintenance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Compression Mold Maintenance<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Maintenance may include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cleaning flash grooves<\/li>\n\n\n\n<li>Removing cured silicone<\/li>\n\n\n\n<li>Polishing cavities<\/li>\n\n\n\n<li>Checking alignment<\/li>\n\n\n\n<li>Repairing parting lines<\/li>\n\n\n\n<li>Inspecting heating systems<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">LSR Mold Maintenance<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">LSR molds may require more specialized maintenance because of their precision systems.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Maintenance may include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cleaning valve gates<\/li>\n\n\n\n<li>Inspecting cold runners<\/li>\n\n\n\n<li>Checking vacuum channels<\/li>\n\n\n\n<li>Cleaning vents<\/li>\n\n\n\n<li>Checking shutoff surfaces<\/li>\n\n\n\n<li>Inspecting ejectors<\/li>\n\n\n\n<li>Verifying heating zones<\/li>\n\n\n\n<li>Monitoring mold wear<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tooling cost should include expected maintenance and spare components, not only the initial mold price.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Quality Inspection<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A silicone part inspection plan may include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Rozm\u011brov\u00e9 m\u011b\u0159en\u00ed<\/li>\n\n\n\n<li>Vizu\u00e1ln\u00ed kontrola<\/li>\n\n\n\n<li>Zkou\u0161ky tvrdosti<\/li>\n\n\n\n<li>Flash inspection<\/li>\n\n\n\n<li>Color verification<\/li>\n\n\n\n<li>Weight measurement<\/li>\n\n\n\n<li>Tensile testing<\/li>\n\n\n\n<li>Elongation testing<\/li>\n\n\n\n<li>Tear testing<\/li>\n\n\n\n<li>Compression-set testing<\/li>\n\n\n\n<li>Leak testing<\/li>\n\n\n\n<li>Bond-strength testing<\/li>\n\n\n\n<li>Funk\u010dn\u00ed testov\u00e1n\u00ed<\/li>\n\n\n\n<li>Lot traceability<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Critical dimensions and functional features should be identified on the drawing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Because silicone is flexible, measurement method, fixture, temperature, and conditioning time can affect results.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Common Compression Molding Defects<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Possible compression molding defects include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Excessive flash<\/li>\n\n\n\n<li>Short molding<\/li>\n\n\n\n<li>Air bubbles<\/li>\n\n\n\n<li>Flow marks<\/li>\n\n\n\n<li>Uneven color<\/li>\n\n\n\n<li>Incorrect material loading<\/li>\n\n\n\n<li>Part distortion<\/li>\n\n\n\n<li>Kontaminace povrchu<\/li>\n\n\n\n<li>Parting-line mismatch<\/li>\n\n\n\n<li>Incomplete curing<\/li>\n\n\n\n<li>Over-curing<\/li>\n\n\n\n<li>Tearing during demolding<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Many defects can be reduced through better preform design, material control, mold temperature, venting, and loading consistency.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Common LSR Injection Defects<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Possible LSR injection defects include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Short shots<\/li>\n\n\n\n<li>Air traps<\/li>\n\n\n\n<li>Flash<\/li>\n\n\n\n<li>Gate marks<\/li>\n\n\n\n<li>Weld lines<\/li>\n\n\n\n<li>Material contamination<\/li>\n\n\n\n<li>Incorrect mixing ratio<\/li>\n\n\n\n<li>Incomplete curing<\/li>\n\n\n\n<li>Part sticking<\/li>\n\n\n\n<li>Insert movement<\/li>\n\n\n\n<li>Bonding failure<\/li>\n\n\n\n<li>Povrchov\u00e9 vady<\/li>\n\n\n\n<li>Rozm\u011brov\u00e1 nestabilita<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Process monitoring should include material pressure, injection parameters, mold temperature, curing time, and equipment condition.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Cost Comparison<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The total cost of a silicone component includes more than the unit price.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A proper comparison should include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tooling cost<\/li>\n\n\n\n<li>Material cost<\/li>\n\n\n\n<li>Labor<\/li>\n\n\n\n<li>Doba cyklu<\/li>\n\n\n\n<li>Cavity count<\/li>\n\n\n\n<li>Scrap<\/li>\n\n\n\n<li>Trimming<\/li>\n\n\n\n<li>Inspection<\/li>\n\n\n\n<li>Automatizace<\/li>\n\n\n\n<li>Mold maintenance<\/li>\n\n\n\n<li>Balen\u00ed<\/li>\n\n\n\n<li>Annual quantity<\/li>\n\n\n\n<li>Project life<\/li>\n\n\n\n<li>Validation cost<\/li>\n\n\n\n<li>Tool-transfer risk<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Compression Molding Cost Pattern<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Compression molding usually has:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Lower initial tooling cost<\/li>\n\n\n\n<li>Higher labor per part<\/li>\n\n\n\n<li>Longer cycle times<\/li>\n\n\n\n<li>More trimming<\/li>\n\n\n\n<li>Greater suitability for low volume<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">LSR Injection Cost Pattern<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">LSR injection molding usually has:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Higher initial tooling cost<\/li>\n\n\n\n<li>Lower labor per part<\/li>\n\n\n\n<li>Faster cycles<\/li>\n\n\n\n<li>Better automation<\/li>\n\n\n\n<li>Greater suitability for high volume<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A project with a low purchase price but high manual trimming cost may become expensive over its full life.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Choose the Right Process<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Choose compression molding when:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Annual volume is low or moderate<\/li>\n\n\n\n<li>The component is large<\/li>\n\n\n\n<li>Geometry is relatively simple<\/li>\n\n\n\n<li>Tooling budget is limited<\/li>\n\n\n\n<li>Product demand is uncertain<\/li>\n\n\n\n<li>The part has a thick cross-section<\/li>\n\n\n\n<li>Manual trimming is acceptable<\/li>\n\n\n\n<li>Multiple custom versions are required<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Choose LSR injection molding when:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Annual volume is high<\/li>\n\n\n\n<li>The part has thin walls<\/li>\n\n\n\n<li>The geometry is complex<\/li>\n\n\n\n<li>Tight repeatability is required<\/li>\n\n\n\n<li>Automatizace je d\u016fle\u017eit\u00e1<\/li>\n\n\n\n<li>Flash must be minimized<\/li>\n\n\n\n<li>The project requires insert molding<\/li>\n\n\n\n<li>The part includes fine sealing features<\/li>\n\n\n\n<li>Contamination control is important<\/li>\n\n\n\n<li>The product has a long expected life<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Decision Checklist for Procurement Engineers<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Before selecting a manufacturing process, review the following questions:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>What is the expected annual quantity?<\/li>\n\n\n\n<li>How long will the product remain in production?<\/li>\n\n\n\n<li>What is the target unit cost?<\/li>\n\n\n\n<li>What tooling budget is available?<\/li>\n\n\n\n<li>Does the design contain thin sections?<\/li>\n\n\n\n<li>Are there deep undercuts or complex sealing lips?<\/li>\n\n\n\n<li>Is overmolding required?<\/li>\n\n\n\n<li>Are inserts required?<\/li>\n\n\n\n<li>What are the critical tolerances?<\/li>\n\n\n\n<li>What flash level is acceptable?<\/li>\n\n\n\n<li>Is automatic production required?<\/li>\n\n\n\n<li>Does the part require cleanroom manufacturing?<\/li>\n\n\n\n<li>What secondary processing is required?<\/li>\n\n\n\n<li>Is post-curing necessary?<\/li>\n\n\n\n<li>How much manual trimming is acceptable?<\/li>\n\n\n\n<li>Are multiple colors or material grades required?<\/li>\n\n\n\n<li>What inspection level is required?<\/li>\n\n\n\n<li>What regulatory documents are required?<\/li>\n\n\n\n<li>How quickly are prototypes needed?<\/li>\n\n\n\n<li>Can the design be simplified?<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">The manufacturing supplier should review the 3D model, drawing, annual quantity, material requirements, and final assembly before recommending a process.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Information to Include in an RFQ<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">To obtain an accurate silicone molding quotation, provide:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Two-dimensional drawing<\/li>\n\n\n\n<li>Three-dimensional model<\/li>\n\n\n\n<li>Po\u017eadavky na materi\u00e1l<\/li>\n\n\n\n<li>Tvrdost<\/li>\n\n\n\n<li>Barva<\/li>\n\n\n\n<li>Annual quantity<\/li>\n\n\n\n<li>Objedn\u00e1van\u00e9 mno\u017estv\u00ed<\/li>\n\n\n\n<li>Expected project life<\/li>\n\n\n\n<li>Prototype quantity<\/li>\n\n\n\n<li>Critical tolerances<\/li>\n\n\n\n<li>Acceptable flash<\/li>\n\n\n\n<li>Povrchov\u00e1 \u00faprava<\/li>\n\n\n\n<li>Provozn\u00ed teplota<\/li>\n\n\n\n<li>Vystaven\u00ed chemick\u00fdm l\u00e1tk\u00e1m<\/li>\n\n\n\n<li>Compliance requirements<\/li>\n\n\n\n<li>Sterilization method<\/li>\n\n\n\n<li>Insert details<\/li>\n\n\n\n<li>Overmolding substrate<\/li>\n\n\n\n<li>Po\u017eadavky na balen\u00ed<\/li>\n\n\n\n<li>Inspection requirements<\/li>\n\n\n\n<li>Target production date<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">When the process has not yet been selected, request separate technical and commercial evaluations for compression molding and LSR injection molding.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Z\u00e1v\u011br<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Compression molding and LSR injection molding can both produce reliable custom silicone components, but they serve different project requirements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Compression molding generally offers lower tooling investment and greater flexibility for large, simple, low-volume, or medium-volume parts.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">LSR injection molding provides stronger advantages for complex geometry, thin sections, low-flash requirements, automated production, insert molding, and high annual volumes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The best process should be selected by evaluating the entire project, including:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Product geometry<\/li>\n\n\n\n<li>Materi\u00e1l<\/li>\n\n\n\n<li>Tooling investment<\/li>\n\n\n\n<li>Annual volume<\/li>\n\n\n\n<li>Doba cyklu<\/li>\n\n\n\n<li>Labor<\/li>\n\n\n\n<li>Quality requirements<\/li>\n\n\n\n<li>Automatizace<\/li>\n\n\n\n<li>Validation<\/li>\n\n\n\n<li>Expected product life<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Early cooperation between the product designer, procurement team, quality engineers, and silicone molding supplier can prevent unnecessary redesign and reduce total manufacturing cost.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Is LSR injection molding always more expensive than compression molding?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The initial tooling cost is usually higher, but the unit cost may be lower for high-volume production because LSR injection molding supports faster cycles and greater automation.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Is compression molding suitable for precision silicone parts?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes, compression molding can produce precise parts when the mold and process are properly controlled. LSR injection molding generally provides greater consistency for complex, thin, or high-volume components.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Which process produces less flash?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">LSR injection molding can produce very low flash when precision tooling and correct process control are used. Compression molding commonly produces more flash and may require secondary trimming.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can compression molding produce medical silicone parts?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. Compression molding can be used for healthcare silicone components when the material, environment, process, post-curing, traceability, and validation requirements are properly controlled.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can LSR be overmolded onto plastic?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. LSR can be overmolded onto compatible thermoplastics using mechanical locking, self-bonding materials, primers, or surface treatments.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Which process is better for large silicone gaskets?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Compression molding is often economical for large, relatively simple gaskets. Extrusion and joint bonding may also be considered for very large sealing profiles.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Which process is better for thin silicone membranes?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">LSR injection molding is generally better suited for thin membranes because the liquid material flows easily into narrow cavities and fine features.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can the same mold be used for HCR and LSR?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Normally no. Compression molds and LSR injection molds are designed around different material-delivery, gating, venting, heating, and flash-control requirements.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Which process is better for low-volume production?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Compression molding is often more suitable for low-volume production because of its lower initial tooling investment.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Which process is better for automated mass production?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">LSR injection molding is usually the better choice because material feeding, injection, curing, part removal, inspection, and packaging can be highly automated.<\/p>","protected":false},"excerpt":{"rendered":"<p>Silicone parts can be manufactured through several molding processes, but compression molding and liquid silicone rubber injection molding are two of the most widely used methods. Both processes can produce reliable silicone components, including seals, gaskets, valves, membranes, wearable parts, baby-care products, medical components, electronic parts, and industrial assemblies. However, they differ significantly in tooling, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2546,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[1145,1427,2015,1857,1375,2014,1570,2016,73,2013],"class_list":["post-2545","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news","tag-custom-silicone-manufacturer","tag-custom-silicone-parts","tag-hcr-silicone-molding","tag-liquid-silicone-rubber-molding","tag-lsr-injection-molding","tag-lsr-vs-compression-molding","tag-silicone-compression-molding","tag-silicone-mold-tooling","tag-silicone-molding-process","tag-silicone-parts-manufacturing"],"_links":{"self":[{"href":"https:\/\/www.fhysilicone.com\/cs\/wp-json\/wp\/v2\/posts\/2545","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fhysilicone.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fhysilicone.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fhysilicone.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fhysilicone.com\/cs\/wp-json\/wp\/v2\/comments?post=2545"}],"version-history":[{"count":1,"href":"https:\/\/www.fhysilicone.com\/cs\/wp-json\/wp\/v2\/posts\/2545\/revisions"}],"predecessor-version":[{"id":2547,"href":"https:\/\/www.fhysilicone.com\/cs\/wp-json\/wp\/v2\/posts\/2545\/revisions\/2547"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fhysilicone.com\/cs\/wp-json\/wp\/v2\/media\/2546"}],"wp:attachment":[{"href":"https:\/\/www.fhysilicone.com\/cs\/wp-json\/wp\/v2\/media?parent=2545"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fhysilicone.com\/cs\/wp-json\/wp\/v2\/categories?post=2545"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fhysilicone.com\/cs\/wp-json\/wp\/v2\/tags?post=2545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}