What are the material selection requirements for dual color molds?

The selection of two-color Injection mold construction materials is the premise to ensure the processing quality of the mold. Therefore, special attention should be paid to the physical and chemical properties of the materials and treatment selection, so that we can design a reasonable mold.

Combined with traditional mold design, CAE technology and Computer-aided engineering have great advantages in improving productivity, ensuring product quality, reducing costs, reducing labor intensity, etc. How to select materials for two-color mold, Dongguan Yuexin Plastic Mold Manufacturing Co., Ltd. has sorted out the following two points for everyone:,

Good thermal stability:

The shape of plastic dual color molds is often complex and difficult to process after quenching. Therefore, it is recommended to choose parts with good thermal stability. When the mold is formed and processed, it has a small linear expansion coefficient, small heat treatment deformation, and a small rate of size change caused by temperature differences.

Adequate surface hardness and wear resistance:

The hardness of plastic molds is usually below 50-60HRC, and the heat treated molds should have sufficient surface hardness to ensure that the molds have sufficient stiffness.

Due to the high compressive stress and friction force that plastic filling and flowing in the mold during operation, it is required that the mold maintain shape accuracy and dimensional stability to ensure sufficient service life.