1. Component design and plating process
If stress is applied, there is a certain stress in the plastic part, which will bring a lot of problems to the roughening of the plastic parts and the subsequent series of pretreatment processes.
Therefore, plastic parts with higher stresses must go through this process. Especially for plastic parts with high PC content (PC≥40%), due to the poor self-lubrication of PC materials, there is a tendency of stress cracking, shrinkage is small during molding, melt cracking and stress concentration are easy to occur, and annealing is required to remove stress.
2. Injection molding process
Such as increasing the mold temperature to reduce the stress of the material.