In the field of plastic injection molding, product cracking is an issue that cannot be ignored, encompassing various forms from minute cracks to complete fractures. Delving deeper, these cracking phenomena can be attributed to two major causes: mechanical cracking and chemical stress cracking.

In our previous article, we discussed the main causes of stress marks in plastic molding products. Now that we understand the causes, it's imperative to explore ways to minimize internal stress during the production process. With guidance from the engineers at Dongguan Yize Mold, the solutions are outlined below:

In the field of injection molding, when we closely observe finished products made of materials such as ABS, PP, and PC, it is not uncommon to find white or shiny marks on their surfaces.