Shanghai Daoqin Plastics Co., Ltd.

injection molding and blow molding manufacturing processing injection molding manufacturing injection molding, manufacturing plastics products types methods, will melt plastics utilizing pressure plastics products mold in, cooling molding to need various plastics parts. has used for injection molding machine injection molding machine. currently most use plastics is polystyrene (PS).

    形状往往就 is most rear formed product, in or as is most formed product use front again need other processing. many fine 部, 诸如凸起部, 肋, 螺纹, can in injection 模塑一步操 as in molding 出.

    injection machine （ injection molding machine ） has basic parts: used for melt and plastics mold injection plant/unit and clamping plant/unit. and plant/unit function in 于: 1. make mold in 承受住 injection pressure lower combined; 2. will products injection plant/unit in plastics mold front will its melt, rear control pressure and speed degree will melt mold. currently using/adopting injection plant/unit has types design: screw 式预塑化 device or di grade plant/unit, and 往复式 screw. screw 式预塑化 device utilizing 预塑化 screw （第一 grade ） again will melt plastics 注入注 material 杆（第二 grade ）.

    screw 预塑化 device advantages is melt material quality 恒定, high pressure and high speed, and injection amount control （ utilizing active 塞冲程两端 machine 械止推 plant/unit ）. this long is transparent, thin products and high production speed rate need. its disadvantages non-uniform time （导致材 material degradation ）, relatively high equipment use and repair use.

    most commonly used 往复式 screw injection plant/unit need 柱塞即 will plastics melt injection.

    as principle copper parts main/primary applications is will product injection molding in plastics parts inner, rear can in plastics parts formed has inner 螺纹. its as methods is will product add hot rear to plastics parts or is using/adopting mold injection molding. is copper tool has relatively good thermally conductive property, add hot rear will copper parts pressure plastics can make product speed hot add fast as efficiency, add hot rear copper parts can fast speed will hot amount to plastics parts, from make plastics 孔周边变 soft, from fast speed will product pressure inner. if using/adopting mold injection molding, copper parts by hot injection molding plastics parts rear due to outer has pressure process, formed rear and copper parts formed abrasion scratch force and and force, can make solid in make can 脱落.

    injection machine （ injection molding machine ） has basic parts: used for melt and plastics mold injection plant/unit and clamping plant/unit. and plant/unit function in 于: 1. make mold in 承受住 injection pressure lower combined; 2. will products injection plant/unit in plastics mold front will its melt, rear control pressure and speed degree will melt mold. currently using/adopting injection plant/unit has types design: screw 式预塑化 device or di grade plant/unit, and 往复式 screw. screw 式预塑化 device utilizing 预塑化 screw （第一 grade ） again will melt plastics 注入注 material 杆（第二 grade ）.

    screw 预塑化 device advantages is melt material quality 恒定, high pressure and high speed, and injection amount control （ utilizing active 塞冲程两端 machine 械止推 plant/unit ）. this long is transparent, thin products and high production speed rate need. its disadvantages non-uniform time （导致材 material degradation ）, relatively high equipment use and repair use.

    most commonly used 往复式 screw injection plant/unit need 柱塞即 will plastics melt injection.

    machine type type injection molding machine type type has:立式, 卧式, full electrical 式, is that type of injection molding machine, its basic function has 两:

    （1） add hot plastics, make its to 熔化状态;

    （2） for melt plastics add high pressure, make its injection shot 而充满 mold type 腔.

    ultra- low cost injection molding

    1, ultra- low cost injection molding engineering

    1.1, high material engineering:

    1.1.1, hot recycled remove wet drying: electrical 50％ above, environmental protection （无 recycled gas 体排放）;

    1.1.2, screw strong/high force 清洗, black spots defect anti 止

    1.1.3, material recycling again utilizing, material mixed anti 止

    1.2, high energy saving engineering:

    1.2.1, injection molding machine electrical:

    1.2.2, material electrical magnetic add hot: electrical 50％＋

    1.2.3, hot coating material: coating 3mm, make used for 任何场, electrical 30％＋

    1.3, ultra- short cycle engineering:

    1.3.1, in cycle shrink short: formed product, semi formed product, raw materials, defect product and other

    1.3.2, molding cycle shrink short, cooling molding

    1） most new cooling technology and equipment, reduce mold cooling cycle;

    2） molding technology improvement, reduce molding cycle. 包括: mold defect / molding product defect improvement, molding process optimization, new mold mold trial and defect improvement, reduce engineering inner defect rate;

    1.3.3, as time shrink short, mold fast speed 切换

    1） molding engineering improvement, shrink short as time. 包括: 自动/ semi as 业, mold fast speed 切换, machine as 业, machine fast speed as 业, machine as 业, more machine as 业.

    blow moulding

    in blow molding, types development speed plastics processing methods. thermoplastic property resin extrusion or injection molding to tube/pipe plastics type 坯, hot （ or add hot to soft 化状态）, for mold opening in, rear in type inner pressure shrink gas, make plastics type 坯吹胀而紧贴 in mold inner upper, cooling demolding, to various in products. blow molding film manufacturing process in principle upper and in products blow molding separation versus 似, it use mold, from plastics processing technology classification degree, blow molding film molding process usually extrusion in. blow molding process in 第二次 world large 战期间, used for production low density polyethylene (PE) small bottle. 50 year rear 期, high density polyethylene (PE) and blow molding machine development, blow molding technology to application. in container can 达数千 rise, has production already using/adopting machine control. suitable for blow molding plastics has polyethylene (PE), polyvinyl chloride (PVC), polypropylene (PP), polyester and other, in container used as industrial packaging container.

    according to type made as methods, blow molding can separation is extrusion blow molding and injection blow molding, new development has more blow molding and tensile blow molding. 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; 5.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

    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.