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Time of issue:2020-03-17 00:00:00

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Gas-assisted injection molding technology put into use formally

  • Categories:Company news
  • Author:
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  • Time of issue:2017-02-11 14:46
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(Summary description)Gas-assisted injection molding with many advantages such as low injection pressure, products with small warpage, high quality surface and easy to process parts with big different wall thickness. In recent years, gas-assisted injection molding develops fast and it has been applied to plastic products in business area about 20 years in developed countries.

Gas-assisted injection molding technology put into use formally

(Summary description)Gas-assisted injection molding with many advantages such as low injection pressure, products with small warpage, high quality surface and easy to process parts with big different wall thickness. In recent years, gas-assisted injection molding develops fast and it has been applied to plastic products in business area about 20 years in developed countries.

  • Categories:Company news
  • Author:
  • Origin:
  • Time of issue:2017-02-11 14:46
  • Views:
Information
  Gas-assisted injection molding with many advantages such as low injection pressure,  products with small warpage, high quality surface and easy to process parts with big different wall thickness. In recent years, gas-assisted injection molding develops fast and it has been applied to plastic products in business area about 20 years in developed countries.
  Gas-assisted injection molding includes two parts, plastic melt injection and nitrogen injection. There will be more process parameters need to be confirmed and controlled for gas-assisted injection molding compared with traditional injection molding process. So some special requirements needed for product design, mold design and molding process control.
  Procedure about the gas-assisted injection molding is as follows. First step, material injection to cavity of resin. Second step, lead compressed nitrogen in melted materials, nitrogen will go along with smallest resistance direction to product areas with low pressure and high temperature.
  Advantages of gas-assisted injection molding are as follows,
  1. Injection pressure drops residual stress, so product with smallest warpage.
  2. Small tonnage injection machine can be used because low requirement of clamp force.
  3. Dimensional tolerance and stability of the product are improved for residual stress.
  4. Burrs can be reduced or eliminated.
  5. Plastic materials can be reduced up to 40%.
  6. Molding cycle shorted and cooling time is shorted more than 30%.
  7. A great improvement in freedom about  the mold structure and mold design.
  8. Reduce mold loss and improve mold life.
  9. Reduce injection point and lower cost.
  10.No worry about sink mark any more because bone and rib can be enlarged in size.
  11.Smoothness of the surface improved and no swirling pattern.
  Consult Meike Engineering Department for more detailed technology information.

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© 2020 CHONGQING MEIKE MOLD ENGINEERING CO.,LTD  
渝ICP备16009365号  POWERED BY:300.cn