• The meaning of molding May 20, 2019
    Molding is a high quality, high efficient, low loss, strong adaptation manufacture technology. it's a valuable wealth in the society. Cause of the modernization of mold production technology, nowdays , mold has been widely used in the production of electric motors and electrical products, electronic computer products, instruments, household appliances and office equipment, automobiles, ordnance, g...
  • Four stages in the injection molding process May 20, 2019
    Under the action of the screw thrust, the melted material has flowed through the barrel, nozzle, runner, gate, etc. at a certain rate and then injected into the cavity, and the injection pressure is gradually decreased by overcoming the flow resistance. Plastic filling process and molding quality. In addition to the injection pressure, it depends on the melt injection speed, melt and mold temperat...
  • How to choose the mold steel for mirror polishing? May 20, 2019
    To make high quality mirror polishing on mold (cavity and core inserts, same as below), the requirement of mold surface polishing of mold is high, because this is the most important loop of mold manufacturing.  The surface with roughness and corrugated grain is an abnormal phenomena in mirror polishing of molds. Generally, it is the the mold steel material, the polishing method, or the inject...
  • Purpose of mold polishing May 24, 2019
    Polishing is an important process in the plastic mold making process. With the increasing application of plastic products, the appearance quality of plastic products is getting higher and higher, so the surface polishing quality of plastic mold cavities should be improved accordingly. Molds with specular and high-gloss surfaces have higher requirements on the surface roughness of the mold and ther...
  • What is the most important during designing a mould ? May 27, 2019
    The most important point is structure , If the structure can be simplified as much as possible, but the quality of the mold must be guaranteed, the company will earn the maximum profit from it .  When we received a product , the first question is find out the biggest parting surface , Roughly determine the cavity and the core , then , To Analyze the construction of cavity and core , insert , ...
  • Advantages of plastic gas-assisted molds Jun 03, 2019
    Today we are going to discuss with the advantages of plastic gas assisted injection mold. 1. Save raw materials, increase plastic utilization rate by up to 50%, reduce molding cycle, and improve certain performance. In the case that the parts can meet the same usage requirements, the use of gas-assisted injection can greatly save plastic raw materials. 2. It can reduce the pressure of the mold by ...
  • Analysis of the Causes of Whitening of Injection Molding Products Jun 03, 2019
    Causes whitening and halo of injection molded products. This is a defect due to contamination of impurities in gas or air. The main solution: (1) Eliminate the interference of gas, and intentionally prevent the contamination of impurities. (2) Increase the material temperature and mold temperature, and adjust the barrel temperature in stages, but prevent the temperature from being too high to deco...
  • What is insert molding process? Jun 03, 2019
    What is insert molding process? Insert molding is the process of putting inserts before injection molding. The finished product of insert molding is a single plastic part  with an insert surrounded by plastic. Inserts can be made of metal or different types of plastics. Insert molding has been applied in many industries, such as insert molding couplings, thread fasteners, filters, electronic ...
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A total of 22 pages

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