The outer shell structure should avoid sharp corners or sudden changes in local thickness to prevent heat concentration from causing deformation or cracking.
Traditional cold runners cause the melt to cool and solidify within the runner, leading to a decrease in pressure at the filling end and potentially causing uneven shrinkage.
Chemically corrosive environments (such as acids, alkalis, and solvents) require increased wall thickness or surface coating treatment to extend the life of the casing.
Feeding measurement data back to the design process can optimize mold structure, reduce assembly difficulties, and reduce the risk of tolerance accumulation from the source.
Non-standard customized plastic shells usually involve the coordination of multiple parts, and differentiated tolerance strategies need to be formulated according to the assembly level.
In modern manufacturing, product appearance quality is no longer a secondary consideration, but rather a core element of market competitiveness.