Shanghai Daoqin Plastics Co., Ltd.

         extrusion blow molding is types manufacturing in thermoplastic property made parts methods. is made blow molding for has bottle, 桶, 罐, and has packaging food, material, product, product and day use product container. large blow molding container usually used for chemical industry product, lubricant and dispersion material packaging upper. other blow molding products also has 球, tube/pipe and toys. for/regarding automotive manufacturing 业, material 箱, decrease device, base/seat 椅靠背, in 心托架以 and and 头枕覆 cover/cap is blow molding. for/regarding machine and furniture manufacturing 业, blow molding parts has outer housing/shell, frame 架, made 架, or to has 一 开放面 箱 box/case.

         polymer

         most blow molding plastics raw materials is high density polyethylene (PE), large separation 牛奶平时 has this type of polymer made formed. other polyolefin through blow molding processing. according to applications, styrene polymer, polyvinyl chloride (PVC), polyester, polyurethane ester, polycarbonate (PC) and other thermoplastic property plastics can use blow molding.

         most engineering plastics in automotive industry by 广泛接受. material selection is machine strong/high degree, weather resistance, electrical property can, optical property can and other property can is based on.

         process

        3/4 blow molding products is extrusion blow molding method manufacturing. extrusion process is strong/high material material through 一 孔 or mold manufacturing product.

         extrusion blow molding process 由5步组 formed:

        1. plastics type 胚(in plastics tube/pipe extrusion);

        2. in type upper will combined mold combined, mold 并切断 type 胚;

        3. toward mold cavity cold 壁吹胀 type 培, adjustment 开口并 in cooling maintain pressure, mold, lower by parts;

        4.修整 flash to formed product.

        挤塑

         polymer mixed 配备定义 is through melt mixed combined make polymer or polymer system improve/increase and other grade types process. mixed process from mono additives add to multiple additives 处理, polymer alloy and reaction property mixed 培, its scope/range 甚广. 据估计, USA separation polymer production need mixed 佩. mixed material can according to most application property can requirements 进行定 made. mixed product tool has mixed property can, high gloss and excellent impact resistant strong/high degree, or precision property and good rigid degree.

         mixed good polymer usually by pellet cutting used for 进一步 processing. however industrial upper 越 越 感兴趣 is will mixed and lower process combined 起, type extrusion, this can again add hot polymer.

         mixed combined

        人们 use various type type melt mixed combined equipment, from machine and separation mixed combined machine to mono screw and di screw machine. mixed to (挤塑 machine) is most commonly used equipment, is can provide quality product, and can reduce as use. has types mixed combined type type: distribution mixed combined product material again material in using/adopting high 剪切应 force can uniform distribution. this category of mixed combined liquid by is property mixed combined or property mixed combined.

         dispersion mixed combined strong/high force mixed combined, its in add high 剪切应 force inner poly formed solid 体. 例如当 additives material by 打碎时, pellets dimensions small.

         mixed as in process in need types mixed combined type type.