Shanghai Daoqin Plastics Co., Ltd.

蒸汽无痕 high light injection molding parts technology is 透 运 use will injection molding parts mold surface fast speed rise temperature, molding mold cavity surface temperature degree to resin plastics 玻璃转移 temperature degree (Tg – Glass Transition Temperature) above, rear 开始进行 injection shot molding, formed mold cavity filling process rear, utilizing water (经处理) as is cooling make injection molding parts mold surface temperature degree speed decline, from 而改变 plastics product surface features. RHCM “蒸汽无痕 high light injection molding parts ” technology development already 近4 year more, 由2004 year Germany K-Show in positive 式开始公布, to 2007 year China electrical production 商才开始 use in production liquid sheet/plate electrical outer housing/shell upper. its in 2005 year Korea Samsung (三星) company already use RHCM “蒸汽无痕 high light injection molding parts ” technology production LCD liquid sheet/plate electrical outer housing/shell, its in main/primary advantages is can make resin plastics product outer housing/shell has high gloss degree; remove injection molding parts molding process in 熔接痕 issues, 并省却 product processing necessary and has cost RHCM injection molding parts molding technology and injection molding parts molding process versus ratio lower, can large large improvement product surface gloss degree, solution product surface 熔接痕 issues, for improves product surface hardness has 一定帮助. another, RHCM injection molding parts molding technology can application to add fiber engineering plastics in, can has solution product surface fiber exposure issues. RHCM is how to remove product surface 熔接痕? 熔接痕 形 formed is 由两股 or above melt plastics in injection shot molding filling process in, melt plastics 流 波形 front in mold cavity in versus combined, if mold cavity surface temperature degree or 流体遇 combined pressure 不足, 便会造 formed combined 流端无 method full combined, formed product surface 出现熔接痕 defect; another, plastics in has add material (例如: masterbatch), in combined more 会出现 relatively is obvious Color Difference 异. however, use RHCM injection molding parts technology, let can in 每次开始进行 injection shot molding process front, mold cavity surface temperature degree fast speed improves resin plastics heat deflection temperature (HDT) above (HDT), from large large increase melt plastics in mold cavity inner flow property, decrease low melt plastics and mold cavity surface between abrasion scratch retardant force, significantly remove injection molding parts process product surface 熔接痕 issues. remove outer, RHCM配 combined engineering plastics more can production 出无痕 high gloss degree resin product, product surface appearance requirements, 而进行 二次 processing RHCM how to solution product surface fiber exposure issues? RHCM technology 另一项 advantages is, can significantly remove add fiber modified engineering plastics product surface fiber outer issues. generally in injection molding parts molding in, glass fiber (GF) melt plastics toward toward, if in filling process in, mold cavity surface temperature degree 不足会导致 melt plastics in solid 化, glass fiber (GF) 便会出现无 method full by resin 包裹. another, glass fiber (GF) and resin plastics shrinkage features 差异, molding product cooling rear, glass fiber (GF) more easy outer product surface upper. 而, use RHCM injection molding parts technology, can control mold cavity surface add hot and cooling time 变化, resin plastics product surface crystallization 状态, can has remove glass fiber (GF) outer product surface effect/influence appearance property issues. Japan SONY company production PSP掌 upper machine, housing/shell is using/adopting RHCM technology reduce plastics outer housing/shell surface fiber exposure issues.