The deformation of plastic mold products is a common and troublesome problem.
In the process of processing plastic injection mold products, deformation of the plastic mold products is a common and troublesome issue.
Deformation of the products means that the finished products cannot be used, resulting in waste of time and resources and potential disruption to the production schedule. To address this issue, a series of measures need to be taken from mold design to production processes. Shenzhen Donglai Plastic Mold Factory has provided us with some solutions.
1. In reducing plastic mold deformation, the heat treatment department and the plastic mold design department should collaborate to improve the design of the plastic mold.
For instance, avoiding structures with significantly different cross-sectional sizes, aiming for symmetric designs, and using assembly structures to enhance the stability and durability of the plastic mold.
2. If it is not possible to change the shape of the plastic mold, deformation can be minimized by improving the cooling conditions.
Ensure uniform cooling of all parts and take measures to restrict part quenching deformation. For asymmetric plastic molds, the comprehensive effects of thermal stress and structural stress are the main causes of deformation. Different types of molds require consideration of their deformation tendencies to develop corresponding solutions.
3. When selecting mold manufacturing materials, prioritize materials with good corrosion resistance to avoid resin and additives causing corrosion to the cavity surface, leading to metal erosion and deterioration of the surface condition.
Moreover, ensure that the temperature of the plastic mold cavity reaches above 300°C, choose tool steel that has been properly tempered to ensure dimensional stability and prevent changes in the material’s microstructure, thereby reducing the dimensional changes of the plastic mold.
Avoiding deformation of plastic mold products in the process of plastic injection mold product processing is crucial. Through rational design, manufacturing, and material selection, deformation issues can be effectively minimized, improving product quality and production efficiency. The experiences and advice from Shenzhen Donglai Plastic Mold Factory provide valuable references, aiming to assist more manufacturing companies in addressing similar challenges.