Shanghai Daoqin Plastics Co., Ltd.

currently, world upper general purpose thermoplastic property plastics output/production volume 几乎占 plastics output/production volume 80%, 我国也不例 outer. this plastics processing is material processing technology, extrusion, injection, calendering and other, is plastics through add hot -熔 melt cooling process formed products. 近20 year, molding processing technology development very fast, 但基调变化不 large, already mono toward type toward combined type development, 例如挤-拉-吹, 注-拉-吹, extrusion - hot molding, extrusion - composite/compounding, generally toward conditions molding processing technology development, high pressure, high temperature, high true 空, and other spray coating and other. ※ 挤 出 formed type 　　 thermoplastic property resin and various additives mixed combined pelletizing rear add extrusion machine. material material in machine inner to machine 械剪切 force, scratch hot and outer add hot function, make its melt 塑化, meanwhile also in screw toward front lower, make its formed is 密实 熔 melt 体. melt again 经 滤 sheet/plate and different type type molding 口模, is 截面形状恒定 type 材, cooling type to products. 　　我们通 Common to sheet/plate, rod, tube/pipe, electrical sleeve/set, filament, belt/tape, certain film and other is use this type of methods made formed. inner already can production fine 如渔网 filament, coarse 如直径 is 0.2m large plastics tube/pipe, also can production construction upper use type type 材, plastics 门窗. 　　 extrusion molding production efficiency high, as simple, product quality uniform; equipment can large can small, can can 精, easy manufacturing, start production; can machine more use or comprehensive property production. another extrusion molding machine also can used for mixed combined, 塑化, water, pelletizing, material and other different process. ※ pressure formed type 　　 calendering molding is thermoplastic property plastics main/primary molding methods 之一. methods main/primary is manufacturing film and sheet/slice material. calendering thermoplastic property plastics has PVC, PE, PP, ABS, CA, VC/EVA and other. ※ 注 射 formed type 　　 injection molding parts molding also injection molding, it is types injection 兼模塑 molding methods. injection molding parts molding methods its advantages is production speed degree fast, efficiency high, as can achieve 自动化, can molding complex made parts. 不利 一面 is injection molding parts mold cost high, 且清理困 difficult, therefore small amount products 就不宜 using/adopting method molding. use this type of methods molding products has: electrical machine outer housing/shell, semi 导体收音 machine outer housing/shell, electrical appliances upper parts, 旋纽, ring framework, gears, automotive lamp covers, 茶杯, 饭碗, box/case, 浴缸, and other and other. 　　 currently, injection molding parts molding suitable for full thermoplastic property plastics, its molding cycle short, color product types more, can to 繁, dimensions can large to small, but also products dimensions 精确, product easy more new 换代. ※ 吹 塑 formed type 　　 blow molding blow molding film and blow molding in products types. ※ 泡 沫 塑 material formed type 　　 foam plastics is resin is main/primary formed separation made formed internal has micro small plastics products, also is micro or more property plastics. technology can has thermoplastic property and hot solid property resin processing formed foam plastics. currently usually used for manufacturing foam plastics resin has polystyrene (PS), polyvinyl chloride (PVC), polyethylene (PE), polyurethane ester, aldehyde resin and other and other. 　　 foam plastics products soft hard degree different separation is soft 质, hard and semi hard foam plastics. China plastics modified technology inquiry 网