PP ACCUTECH CP0437M20CL|价格|厂家|多少钱-全球塑胶网-移动端

ACLO PP ACCUTECH CP0437M20CL
ACLO PP ACCUTECH CP0437M20CL
本公司承诺所售原料均为原厂原包,假一赔十

东莞永大塑胶原料有限公司
主营产品：

塑胶原料工程塑胶聚酰胺 PA66耐磨损 PA66超韧耐寒级 PA66食品级 PA66加玻纤 PA66增韧级 PA66阻燃防火 POM聚甲醛高粘度POM 坚韧级POM 耐磨损POM 高韧性POM 抗紫外线POM 加玻纤POM 低翘曲POM
工程塑胶：EVA、PC、POM、PA6、PA66、PEEK、COC、PBT、PET PC/ABS、PPS、PPO、LCP；PC
热弹性体：K胶、TPE、TPR、PVC、TPU、TPV、TPX、SBS；
通用塑胶：ABS、PMMA、PP、PE、AS、HDPE、LDPE。
特种料： PEI、PTFE、PVDF
本公司所销售之塑胶原料均可提供原厂的物性表，UL MSDS SGS COC 欢迎来电咨询！

备注：公司长期销售塑胶原料/原厂原包，25千克/包，符合ROHS认证标准，25千克起。质量有保证

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PP塑胶原料加工
塑料原料加工过程主要是胶粒熔融、流动、定型后冷却成为成品，是一个加温后再冷却的过程，也是塑料从颗粒改变到各不同形状的过程，以下将就各个不同阶段角度去说明加工过程。

1.熔融
装置加温器(Heater)让原料颗粒逐渐熔解成流体状流动，主要以各不同原料适合温度调节，调高温度会趋使原料流动加快，可增加效率但不一定能保证良率，必须取得合适的平衡。另良好的效果与PP遇高热裂解的特性，都是生产时最好能让原料顺利流畅到模头，以避免充料不足或回流现象的产生，回流代表原料流动较产出速率快，最后会造成平均流动效率加大等于MFR提高，是加工可利用的方法之一，但却也造成MFR分布非常态可能导致不稳定性加大，导致不良率可能加大。不过PP成品因为应用的关系都不是尺寸精密度很高的产品，所以影响还不大。

2.螺杆
PP加工绝大部份都是靠螺杆带动流动性，所以螺杆的设计影响非常大，口径大小影响产出量，压缩比大小影响压力值也影响产出量及成品效果，这也包括多种材料(色母、添加剂及改质剂) 的混炼效果。原料流动主要靠加温器，但原料翻动磨擦也会产生磨擦热能促使流动性加快，所以螺杆压缩比小带动流动小，转速必须加大所造成磨擦热能必较压缩比大的螺杆多。所以常说塑料加工无师傅，用心了解机器性能的人就是师傅。原料受热不只是加温器而已，必须连摩擦热及窒留时间都并算在内。所以这是实务问题，经验有助于生产问题解决及效率。螺杆如果需要混炼效果特别好，有时会设计二段式不同螺杆或双轴螺杆并分设各段不同形式螺杆以达各式混炼效果。