The selection of mold component materials directly impacts the production stability of injection molds. Focus on the following four core properties, while also ensuring compatibility with high-precision machining and XP mold application requirements:
Injection mold cavities are subject to high-pressure plastic melt erosion and alternating hot and cold stresses. While ordinary high-carbon alloy steel has high hardness, it suffers from poor toughness and cracking, making it unsuitable formold components. Select materials that reduce mold repairs and maintain cavity accuracy over time to ensure the expected service life of the XP mold.
The selected material must be easy to cut and capable of producing high-precision parts after machining. This material must meet high-precision machining requirements, lay the foundation for precise fit of mold components, and guarantee the assembly accuracy of injection molds like XP molds.
When processing materials such as polyvinyl chloride (PVC) and flame-retardant plastics, mold parts come into contact with corrosive substances. Therefore, corrosion-resistant materials must be used to prevent damage to the components and ensure stable production of injection molds likeXP Mold.
The working surfaces of injection molded parts often need to be polished to a mirror finish (Ra ≤ 0.05μm). The ideal hardness of mold component materials is HRC 35-40. Excessively hard materials increase polishing difficulty. Furthermore, the material's microstructure must be uniform and dense, with minimal impurities and no defects or pinpoints to meet XP Mold's surface quality standards.
