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Acrylic is chemically called polymethyl methacrylate (PMMA in English). Due to the shortcomings of PMMA surface hardness, easy scratching, low impact resistance, poor molding fluidity, 等。, the modification of PMMA has appeared one after another. Such as the copolymerization of methyl methacrylate with styrene and butadiene, the blending of PMMA and PC, 等. The flow of PMMA is worse than that …
The influence of plastic heating speed Generally speaking, 淬火加熱時, the faster the plastic heating speed, the greater the thermal stress generated in the mold, 容易引起模具變形和開裂. 特別適用於合金鋼和高合金鋼, 由於導熱系數差, 應採取特殊預防措施. 熱, for some complex shapes of …
The mold meets the requirements of working conditions Wear resistance When the blank is plastically deformed in the mold cavity, it flows and slides along the surface of the cavity, causing violent friction between the surface of the cavity and the blank, which causes the mold to fail due to wear. 因此, the wear resistance of the material is one …
Six main points of pp injection molding.The processing of plastic raw materials is mainly to melt, flow, shape, and then cool into a finished product. It is a process of heating and then cooling. It is also a process in which the plastic changes from pellets to different shapes. The following will explain the processing from the perspectives of different …
The five major hazards of excessive temperature rise of the injection molding machine are: thermal deformation of the machine, reduced oil viscosity, deformation of rubber seals, accelerated oil oxidation and deterioration, and reduced air component pressure. One of the hazards: thermal deformation of the machine The moving parts with different coefficients of thermal expansion in the hydraulic components are stuck …
The correct selection of the type and specifications of the injection machine before use has a greater impact on the production cost, quality and production efficiency of injection molded products. Before selecting the specifications and models of the injection molding machine, first check the performance parameter values of the injection molding machine in the product instruction manual provided by the …
不同類型嘅鋼用作塑料模具, 並且它們的化學成分和機械性能不同, 所以製造工藝路線係唔同噶; 同樣地, 不同類型嘅塑料模具鋼使用不同嘅熱處理工藝. 本節主要介紹塑料模具嘅製造工藝路線同熱處理工藝嘅特點. 解釋 …
The effect of back pressure on injection molding is very important, and it directly affects the filling of the melt and the quality of the plastic parts. (1) Proper back pressure can improve the quality of products ①It can compact the melt in the barrel, increase the density, and improve the injection volume, product weight and dimensional stability; ②The …
如何縮短中國注塑機嘅注塑周期? 喺呢個競爭日益激烈嘅商業社會中, 提高生產效率係一個值得關注嘅問題. This article describes a variety of ways to improve the injection cycle by using existing or newly designed china injection molding machines or molds Injection cycle The injection cycle of a hydraulically …
注塑機嘅塑化部件, 呢度指嘅係: 螺杆, 熔體桶, 膠頭, 膠圈, 膠墊片. 注塑機工作時, 塑化部件就好似汽車嘅車轆. 只要它們被啟動, 佢哋將受到壓力, 衝擊, 摩擦, 並擠壓. 對於相同嘅輪胎, 繼續行駛 …
一般而言, 大多數從事注塑行業多年嘅客戶, 有能力自己判斷，選擇合適嘅瓷器注塑機生產. 然而, 在某些情況下, 客戶可能需要製造商嘅幫助嚟決定使用哪種注塑機, 甚至客戶可能只係擁有 …
