The influence of the mold wall thickness is too large and the wall thickness is too small

Excessive wall thickness:

(1) Increase the cost

(2) Extend the forming time and reduce the production efficiency

(3) The quality is difficult to control, and it is easy to appear bubbles, shrinkage holes, depressions, etc.

Wall thickness too small:

(1) The resistance of plastic to flow in the mold is large. If the shape is more complex, it will be difficult to form

(2) Poor strength

If the wall thickness of the plastic part is not uniform, the shrinkage will be uneven after the forming process, which will not only cause bubbles, depressions, and deformation but also have large internal stress.

Avoid sharp angles at the junction of the wall thickness and the thin wall, and the thickness should be gradually reduced along the direction of plastic flow.