• Requirements of Thin-wall Injection Molding to Injection Machine Jan 25, 2019
    Thin Wall is usually defined by portable electronic parts with a wall thickness of less than 1 mm. For large automotive parts, Thin Wall can be 2mm. Thin-walled molding products require changes in processing technology: higher pressure and speed, shorter cooling time, changes in ejection and gate arrangement. The following are the requirements of thin-wall injection molding to injection machine. H...
  • What is the focus of mold design?
    What is the focus of mold design? Jan 25, 2019
    The focus is on the structure. If the structure is simplified to the greatest extent possible, but the quality of the mold is to be guaranteed, the company will make the most profit from it. When we receive a product, the first problem is to find the largest parting surface, roughly determine front and rear molds, and then analyze the front mold structure on the basis of this parting surface, the ...
  • What is insert molding? Jan 28, 2019
    Insert molding metal and plastic together into the molding piece, or insert multiple molding metals or materials together into a single molding piece. Insert molding can be used in cars, cooking utensils, house hold equipment, instruments, equipment, knobs, electrical components and more industrial, insert molding not only reduces the assembly also than the assembly parts and Labour costs, reduce ...
  • WHAT IS POLYPROPYLENE? Jan 28, 2019
    POLYPROPYLENE injection molding we simply say PP injection molding, compared with polypropylene, PP is easier, polypropylene is a thermoplastic polymer material, a wide range of applications.It is produced in a process called chain length polymerization, and it is formed from its monomer propylene.Italian scientists discovered it as early as the 1950s It has the following characteristics; It has h...
  • Injection molding machine common problems and solutions (1) Jan 28, 2019
    1, No mode-locking 1) Check the stroke switch of safety door and repair it. 2) Check the 24V5A power supply in the electric box and change the insurance and power supply box. 3) Check if the valve plug is stuck and clean the valve plug. 4) Check if the I/O board has output and whether the solenoid valve is energized. 5) Check if the hydraulic safety switch is pressed and the mechanical lock lever ...
  • Solution for defects of transparent plastic injection parts Feb 15, 2019
    (1) eliminate the interference of gas and other impurities, and fully dry the plastic. (2) reduce the feed temperature, adjust the feed barrel temperature in stages, and appropriately increase the mold temperature. (3) increase the injection pressure and reduce the injection speed. (4) increase or decrease the preplasticized back pressure, reduce the screw speed. (5) improve the exhaust condition ...
  • Causes of color defects in injection parts Feb 15, 2019
    (1) poor mold finish, mold surface rust, mold exhaust is bad. (2) if the casting system of the mold has defects, the cold feed well should be increased, and the flow passage, polishing mainstream passage, diversion passage and gate should be increased. (3) the material temperature and mold temperature are low, if necessary, local heating method of gate can be used. (4) low processing pressure, slo...
  • Requirements of Thin-wall Injection Molding to Mold Feb 15, 2019
    Speed is one of the key factors for the success of thin-wall injection molding. Rapid filling and high pressure can inject molten thermoplastic material into the mold cavity at high speed, to prevent the gate from freezing. If a standard part fills in two seconds, the mold thickness will be reduced by 25%, and the filling time may be reduced by 50% (saving 1 second in time). When thickness decreas...
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A total of 23 pages

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