How did the plastic mold crack failure occur?What is the exclusion method?
In the structure design of die materials, if the improper structure design, model for the low rigidity, due to the repeated deformation induced fatigue with molding, often prone to cracking at the corner box plastic parts.The mould that produces the crack can be used to enhance the rigidity from the outside of the mould, so as to avoid the crack expansion, so that the cracks left on the surface of the plastic parts will not be conspicuous.
However, the key to solving the problem is to design the mold. It must be considered that it has sufficient iJ and strength, especially after the opening of the mold, whether the rigidity can meet the molding requirements.The material of the mould has a certain relation with the producing crack, it is better to use the material with good toughness.