Reasons for mold making dent in

1. dents. Dent causes are:

1), the mold is not sufficiently cooled, the cooling time is less than it will cause severe distortion.

2) lack of internal pressures mold will happen.

3), the thickness of each portion of the different products. In such cases, we generally have the proper disposal method: lower cylinder temperature and mold temperature at the local dent forced cooling, make a dent in the local upstream side, the difference in product thickness control design.

2. whitening products. Causes whitening products are the following.

1), in line with too much pressure.

2), release bad. In such cases, the overall approach: plastic mold design should pay attention to stripping the slope should be enough, when making the mold, the mold cavity maintained to ensure smooth, real-time processing injection pressure should drop immediately.