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Hollow profile sheet extrusion machine

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  • 09/10/2016

Hollow profile sheet extrusion line The super thick type hollow profile sheet extrusion machine from Handern can produce 12-20mm thickness hollow profile sheet,the length,width,color,weight can make by customer’s requirement The solution for the production of PP, PE and other materials produce hollow profile sheet, from raw materials to production process control and production efficiency and the finished product,etc. Our outstanding technical ability based on years of research,development and …

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How the temperature and pressure affect the extrusion of the plastic extruder

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  • 05/12/2016

How the temperature and pressure affect the extrusion of the plastic extruderIn the plastic production process, the temperature is the production of plastic products, one of the important conditions, the temperature control, affecting the extruder extrusion and extrudate quality. The pressure directly affects the output of the extruder and the quality of the products. The porous plate and the filter are set in the nose, which makes the material produce a certain pressure, which is beneficial to t…

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T-type head of CPP cast film production

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  • 01/12/2016

T-type head of CPP cast film productionT-head is one of the key equipment, the head design should make the material flow along the width of the machine lip evenly, there is no retention dead angle in the inner flow channel of the head, and make the material mold have uniform temperature, need to consider including material rheology Behavior, including a variety of factors. To use precision machining head, commonly used is gradually reducing the rack-type head. The surface of the cooling roll shou…

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Selection of CPP cast film core

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  • 29/11/2016

Selection of CPP cast film core Core layer as the middle layer, to provide a certain degree of stiffness. So need to choose the hardness of homopolymer PP products better. Chinas petrochemical plant homopolymer PP can provide the performance to meet the needs of different brand gap is not large.Selection of corona layer As shown in the figure, corona treatment is carried out immediately after the casting gum is molded by the cooling roll. The so-called corona treatment is through the high…

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Selection of Heat Sealing Layer for Cast Film

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  • 28/11/2016

Selection of Heat Sealing Layer for Cast FilmThe heat seal layer requires a lower heat-seal temperature and a better heat-seal strength of the raw material. The initial heat sealing temperature of ternary copolymer PP is lower than that of binary PP and homopolymer PP, usually 110-125C. Therefore, common film, composite film and aluminizing film are usually made of three-element PP. With the increase in production efficiency requirements, the market heat seal layer on the initial heat sealing tem…

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CPP流延膜的生产工艺

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  • 24/11/2016

CPP流延膜的生产工艺T型机头是生产关键设备之一,机头设计应使物料沿整个机唇宽度均匀地流出,机头内部流道内无滞留死角,并且使物料模具有均匀的温度,需考虑包括物料流变行为在内的多方面因素。要采用精密加工机头,常用的是渐减歧管衣架式机头。冷却辊的表面应经过精加工,表面粗糙度不大于0.15mm,转速应稳定,动力平衡性能应良好,以免产生纵向的厚度波动。采用p射线或红外测厚仪对薄膜厚度进行监测,以达到满意的厚薄公差。要生产合格的流延薄膜,不仅要在原料上调节工艺,而且要掌握好加工工艺条件。 对薄膜性能影响最人的是温度…

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