Methods to eliminate the dent in the plastic mold products
Because plastic mold has dent the thickness of different parts of different internal pressure, lack of mold, mold cooling is not sufficient, deformation due to insufficient cooling time. .
1: instant increase injection pressure, prolonging injection pressure holding time, reduce the barrel temperature and mold temperature, cooling in the dent place.
The 2 stage: in the dent place fill the upper edge (Figure A). There is a small place in the local dent material through edge, the edge thickness.
3 long term: should completely avoid the design of product thickness difference. Easy to produce stiffener dent, narrow shape should be as short as possible.