Shanghai Daoqin Plastics Co., Ltd.

        整整80 year front, 塑界发生 一 parts large 事—— true positive can manufacturing polymer processing use di screw extrusion machine, 诞生!

        80 year, di screw extrusion machine already to application, many industry can it 身影. 例如: polymer/macromolecule alloy blending, PVC pipe/tube, food industry, made industry and other. lower, 我们谈谈 di screw extrusion machine development 历程.

         from mono to di, application scope large large improves

        早 in 19世纪 in 叶, extrusion machine already in industrial production in application. that extrusion machine belongs to mono screw extrusion machine, main applications in device 黏土, 橡胶, food industrial large field/area.

        人们发现, mono screw extrusion machine material material efficiency 受介质本身 流变 property can effect/influence very large, and, 螺槽根部 material material 滞留严 heavy, therefore 发明家们一直 in can solution upper issues solution/scheme.

        土爆 for for? however, is world upper 第一 提出 true positive upper di screw extrusion machine 人. di screw extrusion machine 发明, will extrusion machine in industrial production in application large large improves. 当然, still in 继续.

        历 history 转折, di screw extrusion machine liquid pressure machine

        80 year front, is 1938 year, Italy LMP company 创始人Roberto Colombo首次 true positive manufacturing polymer processing use di screw extrusion machine, and use manufacturing PVC pipe/tube.

         this is 一 历 history property 时刻!因 is front, PVC pipe/tube liquid pressure machine pressure made molding. from that 一刻开始, liquid pressure machine by di screw extrusion machine 取代. this, also is di screw extrusion machine 初尝试.

Colombo Roberto in USA 申请 一 series patent in 一篇——screw press for mixing and extruding plastic materials(1951)

        由 upper can 见, Colombo screw full 部由输送元 parts formed, this is is design is extrusion molding, therefore has mixed combined efficiency issues.

        1939 year, Colombo for di screw extrusion machine 进行改进, most large 直径做 to 109mm. year, obtain 第一 客户—— Germany IG method company. di screw extrusion machine to market can.

        不, di screw extrusion machine manufacturing and application also has to property high degree, can application 远远领先于理论.

        继续改进, also difficult 题

        直 to 1940 year 代, 一支由数学家, material 理学家, engineering and machine expert formed 队伍, in Germany 萨克森-安哈尔特州 IG factory, system property research this category of combined toward di screw extrusion machine. its in has large 名鼎鼎 W. Meskat, A. Geberg and Rudolf Erdmenger. (不会念 this 名字?没关系, 看 意思就行)

        他们 任务 is, development 出一台 can use high viscosity system mixed combined issues chemical industry equipment.

         large 家知道, mono screw extrusion machine most large defect in its can force and 输送介质流变 features non related, is this difficult 题, again attention/notes force in toward combined di screw extrusion machine.

         technology breakthrough, polymer blending extrusion machine amount 产

        1950 year 代, has year research 积累, W. Meskat and R. Erdmenger and other di screw extrusion machine key/critical property parameters 进行定义并整理, make extrusion machine research toward specification 化. lower is patent in 一篇, can 看出, extrusion machine already mono parts is 主, patent in also 公开 啮 combined parts application.

        1957 year, obtain production can WP company launch 第一台 blending use di screw extrusion machine ZSK series. ZSK即 is 德语Zweiwellige Knetscheiben-Schneckenpresse shrink 写, is “ di combined type extrusion machine ”, meanwhile launch can 进行自由模 block combined extrusion machine. extrusion machine very fast amount 产.

第一台 used for polymer blending di screw extrusion machine (1950 year 代)

         ultra- 越限 made, improve/increase output/production volume

        WP company launch ZSK machine type versus ratio meanwhile mono screw extrusion machine in output/production volume has very large advantages, this main/primary is made gears design processing technology, more 准确 说, is toward bearings made.

        因 is di screw 一旦确定 in 心距以 rear, need bearings in has dimensions lower provide large force. meanwhile need electrical machine uniform separation to screw. this in structure design, material selection and hot 处理, processing manufacturing upper very difficult.

历代ZSK machine type ratio development -科倍隆

        另一 限 made output/production volume main/primary factors is ratio 扭矩. ratio 扭矩意味 in mono 位空间体积 upper, extrusion machine can provide 扭矩极限, parameters large small 往往决定 extrusion machine output/production volume property can: ratio 扭矩越 high, table/sheet same screw lower output/production volume high.

         its 实, ratio 扭矩并 non high good, is extrusion machine process is complex system, high ratio 扭矩意味 more high production capacity, table/sheet more low mono machine can, product most 终 熔 temperature versus relatively low ratio equipment has reduce, is this for/regarding mixed combined quality, efficiency and other belt/tape factors. therefore, how to balanced this parameters is use must 考虑.

         from 1960 year 代起, in polymer processing field/area 逐渐普 and rear, market demand, extrusion machine parameters indicators in 不断进步. 人们意识 to, need more good product, need in mixed combined quality requirements lower, amount shrink short time, reduce melt temperature degree, improve/increase output/production volume.

65mm machine type output/production volume more new

        由图 can to, 以65mm machine type is 例, from 1980s to 2000s, will 近20 year time output/production volume improves 近10倍. ratio from ZSK第 generation 4Nm/d3 already development to 18+ Nm/d3, large small ratio from 1.22 improve/increase to 1.80, material material 平均停留 time 也由数十 separation reduce to 仅仅数十秒.

         from 1938 year processing PVC, already 80 year, currently, in polymer/macromolecule blending modified industry, di screw extrusion machine already formed is most tool table/sheet property processing equipment. through di screw extrusion machine development history, can 看出, need use 者不断提出 demand, di screw extrusion machine development 就不会止步.