Shanghai Daoqin Plastics Co., Ltd.

        【 in in 线讯】 screw extrusion machine is plastics molding processing most main/primary equipment 之一, it through external force and external add hot parts hot plastics solid 体输送, pressure 实, melt, mixing/compounding extrusion molding. screw extrusion machine 自诞生以, 经 近百 year development, already 由普通 screw extrusion machine development is new type screw extrusion machine. tube/pipe new type screw extrusion machine types type more, extrusion mechanism 而言, basic is same. screw extrusion machine extrusion process, is machine outer add hot, solid material material and machine 筒, screw scratch force and melt force achieve. “ friction coefficient ” and “摩 scratch force ”, “ viscosity ” and “剪应 force ” is effect/influence screw extrusion machine as property can main/primary factors, due to effect/influence “摩 scratch ” and “ viscosity ” factors separation complex, therefore, screw extrusion machine extrusion process is non stability 状态, difficult control, for certain heat stabilized property 差, viscosity high hot property plastics is 突出. 自60 year 代以, world upper 各国学者 for screw extrusion mechanism a large amount of research, obvious formed 就, due to research large more 局限于传统 plastics extrusion molding mechanism, machine structure and can methods, 因而一直未 can heavy large breakthrough. screw extrusion machine in 如体积庞 large, can consumption high, large, product quality improve/increase difficult and other series disadvantages has to solution.

        1979 year, 瞿金平教授 in more year 教学, research in, long 期观察思索 and research rear, in summary front research upper, large 胆提出 will 振动场引入 extrusion molding full process 设想, for screw extrusion machine structure 进行彻底变革. 经 两 year 艰苦努 force, 1990 year 终于研 made 出第一 Formosa Plastics material electrical magnetic 动态塑化 extrusion machine principle machine, principle machine using/adopting 直接换 can methods, will 振动场引入 plastics extrusion full process, from principle to machine structure full different 于传统 screw extrusion machine, 克服 传统 equipment many defect, tool has small, weight light, manufacturing cost low, can consumption low, small, mixing/compounding good and other advantages. 1990 year 底, 国家科委火炬 high technology industry development in 心组织 expert 们经 考察 and rear, will its 列入1991 year grade plan project, 进行研 made development. 1991 year 7 month, series research 之一 “ plastics extrusion equipment machine electrical magnetic 一体化 research ”获“霍英东青 year 教育基金” 资助. in 该基金 资助 lower, for plastics electrical magnetic 动态塑化 extrusion mechanism composite/compounding mechanism in-depth research, in inner outer 首次提出 polymer electrical magnetic 动态塑化 extrusion engineering principle, comparison polymer solid 体输送, melt, melt 输送数学模 type, 阐明并定 amount polymer 动态塑化 extrusion process basic 规律. based on new principle made inner outer 首创 “ plastics electrical magnetic 动态塑化 extrusion equipment ”.

         di screw market innovation technology trend: di screw processing technology already formed is plastics processing application is 普遍 一 types processing 手段, versus competition is 激烈. how to in competition in 立于不败之? different supply 商纷纷 launch has color innovation technology market. high speed, high output/production volume high speed, high 效, energy saving is in recent years plastics machine 械不断改进 主旋律. high speed and high output/production volume can make investment relatively low obtain high 额 回报. is, screw speed high speed belt/tape series solution issues: material material in screw inner time short, easy material material mixing/compounding 塑化不均; high can can formed material material rise temperature and hot separation understanding; can can extrusion stability property issues; need high property can machine and precision control system and sleeve/set; screw and machine abrasion loss issues and decrease speed 传动箱 design issues and other. therefore, for high speed can can belt/tape issues provide solutions, is di screw supply technology innovation important direction 之一. Germany 贝尔斯托夫(Berstorff) company launch new type di screw extrusion machine -ZEUTX series, property can and different in has excellent screw 直径/ production rate ratio. screw design most high speed 达1200rpm, large, extrusion production capacity in 100～3500kg/h between. can meanwhile material material mixing/compounding, reaction, gas and other 工序. machine and screw using/adopting block design, can meet/satisfy various process requirements, tool excellent processing process active property, also has ZSEF type 侧边喂 material device, can achieve high solid pellets rate, pellet cutting machine can different rate and material processing.

         is high speed, high need, extrusion machine has more 处改进. 装备 筒式 add hot device, can in short time inner formed extrusion machine rise temperature as, most high add hot temperature degree can 达450℃; cooling runner design true positive achieve toward cooling, optimization cooling system;配置 “弓形夹紧 plant/unit ”, more machine time can ratio 传统螺栓连接 type more fast; machine using/adopting belt/tape has patent high frequency hard process, 赋予极佳 wear resistance can, from 而省 昂贵 wear resistant sleeve/set; another, also has company high grade process control system. more function in function 方面, di screw extrusion machine already again 局限于 polymer/macromolecule material molding and mixing/compounding, its applications already to food, material, 炸药, building materials, packaging, and and other field/area. in addition, will mixing/compounding pelletizing and extrusion molding combined is 一 “一步 method extrusion process ”也 non tool has force.

        WPC(木塑 composite/compounding material) used for outer application, as sheet/plate sheet/plate and already has versus long time, especially is in USA. that company development Fiberex series, 并不断 make it most 佳化以 used for WPC molding. 第四代Fiberex, tool has add long, wear resistant processing mono 元, can separation meet/satisfy different requirements, to high output/production volume. in year NPE exhibition upper, that company 演示 整 strip/profile Fiberex in production 线, production has production amount is 200 kg/h(440 lb/h) Fiberex T58 extrusion molding machine, used for molding processing 75 %木 powder filling amount PP配 mixed material. production manufacturing types used for furniture industrial type 材, thick 2.5mm, extrusion type speed degree 2m/min. large type and precision achieve extrusion molding equipment large type can reduce production cost, for/regarding large type di screw pelletizing machine 组, film blowing machine 组, pipe/tube more is 如此. in China, large type equipment long 期依赖于 Imported, positive in large type di screw pelletizing machine Domestic research. precision can improve/increase product amount, more composite/compounding film. melt gears as is achieve precision extrusion important 手段应 add large force degree development research. 国际知名 supply in large type extrusion machine development already has a large amount of formed technology. is meet/satisfy different need, JSW provide from TEX30 to TEX400 different specifications di screw extrusion machine. its most large di screw extrusion machine TEX400 machine 筒直径443mm, long 35m, weight 达320吨. Yanbu国立石油 company front toward W&P company 订购 一台 large type di screw ZSK320 extrusion machine, electrical machine, pelletizing machine and water cold system, value ultra- 2000万欧元. according to different polymer product types and viscosity, its output/production volume small 时25-50吨.

        奥 利维也 nano that extrusion has company in 2006 year to USA 一家客户一台迄今 is world upper most large toward 旋转平行 di screw extrusion molding machine. this 台30t type machine output/production volume can to 2000kg/h, is used for high speed production PVC sheet/plate 材 理想 equipment. inner 科研院 in melt gears research development 方面也做 a large amount of as. chemical industry large already development more series melt gears product. Krauss-Maffei company 36D series di screw extrusion machine is PVC processing design block and 专业化 模 block production can different use 户 特殊 requirements, shrink short new product R&D cycle, more large market 份额;而专业化 production can will extrusion molding 装备 各 system block parts 安排定点 production 甚至进行 full procurement, this for ensure machine quality, reduce cost, accelerated 资金周转都 non has 利. manufacturing through increase filler amount will obvious reduce PVC pipe/tube raw materials use. engineering upper is need ensure process stability and product excellent 质. Krauss-Maffei company 36D平行 di screw extrusion machine is PVC processing design. achieve high output/production volume and high products mechanical properties 统一, in addition, this extrusion machine can provide quality stability high quality pipe/tube. in processing high filling formulation 方面, utilizing Krauss-Maffei company development 36D di screw extrusion machine processing PVC排污 pipe/tube, filling amount high 达65份(约40%) CaCO3也 is can 行. in 50~500mm high filling pipe/tube main/primary used for 输送污 water. is make high filling formulation processing more easy, extrusion machine 配置 特殊材 material add material, heavy and amount system. 借助于一 螺旋 add material screw, will PVC dry mixed material and CaCO3 from material 仓输送 to heavy amount plant/unit material in. material in has mixed combined device and device anti 止架桥. in addition, has and material 接触 计 amount plant/unit surface has 一特殊 coating anti material material flow retardant. from amount plant/unit 出, material material in device and 一 特殊 di screw add material device function lower by to extrusion machine add material 口 供 material plant/unit in. can and 网络化 in equipment technology renovation outer, di screw extrusion machine already using/adopting micro machine control, for extrusion process process parameters melt pressure and temperature degree, machine temperature degree, screw and material screw speed, material amount, various raw materials ratio, electrical machine electrical electrical pressure and other parameters in 线监测 and control, for ensure process conditions stability, improve/increase product degree is has 利.