Causes and Solutions of Deformation of Injection Molded Parts

The possible reasons for the deformation of injection molded parts are:


  1. bending is due to excessive internal stress in injection molded parts.


  1. mold filling speed is slow.


  1. plastic material in cavity is not enough.


  1. plastic temperature is too low or inconsistent.


  1. injection molded parts are too hot at the time of ejection.


  1. the temperature of cooling is insufficient or the temperature of the moving and fixed die is inconsistent.


  1. the structure of injection molded parts is unreasonable (such as stiffeners are concentrated on one side, but far apart).


Remedy for deformation of injection molded parts:


  1. reduce injection pressure.


  1. reduce screw forward time.


  1. increase cycle time (especially cooling time). Immerse in warm water immediately after ejection from the mold (especially the thicker parts) to cool the parts slowly.


  1. increase injection speed.


  1. increase plastic temperature.


  1. use cooling equipment.


  1. increase the cooling time or improve the cooling condition appropriately.


  1. improve the structure of plastic parts under the permissible circumstances.


JasonMould Industrial Company Limited, established in 2010, is a leading injection moulding manufacturer in China. JasonMould specializes in plastic mould production for household appliances, medical equipments, electronic equipments, safety equipments as well as monitoring system.

The company has over 15000 square metres factory. With plastic injection tooling divisions possessing different machinery and expertise, JasonMould offers tools from small and precise mobile phone parts to as big as automotive parts. Our tools are mainly exported to U.S.A., Europe, Japan and UK. JasonMould’s diversification strategy and full service has won compliment from customers all over the world.

Our mission is to provide our customers high quality moulding products and services. We aim to exceed our customers’ expectations of pricing, quality and on-time delivery. To achieve our mission, JasonMould:

  • Commits to continually improve employee skills and efficiency,
  • Provides our employees a clean and safe working environment,
  • Upgrades machine technology and support equipment through a strict maintenance program, and
  • Maintains customers’ tooling to its highest peak of performance

For more about custom manufacturer of plastic molding products,please visit

Inquiry Contact:

Contact person: James Yuan

Company name: JasonMould Industrial Company Limited

Address: LongGang Village,LongXi Town,BoLuo County,HuiZhou City,GuangDong Province, China

Telephone: 86-752-6682869

Email: [email protected]



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