2016年6月16日星期四

Burrs in Metal Injection Molding


It is well known for metal injection molding supplier that short shot is a very common defect in powder injection molding process. Today we would like to discuss the reason for short shot during MIM process. Welcome your supplement.
Phenomenon:
Material overflow from mould cavity

Possible reasons for burrs
- measurement set
- injection pressure is too great
-Insufficient clamping force
-mold or feed tube temperature are too high
-Bad liquidity of material
- crystallization rate is too slow
- bad parting line
 airtight 

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