Reason:
Poor air emissions inside the Mold will be caused air trapping for plastic parts and burnned parts sometimes, it can be caused by Mold design, material selection, or other factors. or Caused by poor injection Molding conditions.
Improvement methods:
a) Mold
Check if the exhaust of Mold is good enough.
Add venting inserts or venting slot.
Change the position of the venting.
b) Injection Molding machine conditions
Reduce injection Molding speed
Reduce the locking pressure
Reduce injection Molding temperature
TT Mould and Machining Co.,Ltd
Contact:lucky
Mobile:86-13714904828
Email:info@ttmoulds.com
Add:Xiangfa tech Park, Loucun Community, Xinhu Street, Guangming District, Shenzhen City, Guangdong Province