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Reasonable selection of plastic mold materials
Plastic mold plastic industrial production can obtain good economic benefits. Therefore, it is necessary to understand the basic requirements of mold design and choose appropriate materials.
The working conditions of plastic molds are different. Generally, when the temperature is 150°C-200°C, except for a certain working pressure and temperature outside. According to the use conditions of plastic molds and different processing methods, the basic performance requirements for plastic mold steel will be summarized as follows.
The hardness of the plastic mold is usually after the heat treatment of the mold below 50-60HRC, to ensure its surface hardness, and the mold has sufficient rigidity. Because the work process and filling of plastic molds are subject to greater friction, precision molds require precision molds that maintain shape and size to ensure sufficient stability in life. The wear resistance of the steel mold depends on the chemical composition, heat treatment, and hardness of the material, so as to increase the hardness of the mold to improve its wear resistance.
Excellent cutting process. Most of the plastic molding, except mechanical processing and fitter repair methods that require handling experience. For cutting tools that extend the service life, the cutting performance and the reduction of surface roughness, and the hardness of plastic mold steel must be correct.
At present, plastic products are widely used in all aspects of daily life, including about 80% of the injection molding process. Due to the characteristics of molding injection mold, precision, insertion, productivity, easy to realize modernization and less, it is widely used in automobile, construction, household appliances, food, medicine, daily chemical, etc. after manufacturing. Plastic mold plastic industrial production can obtain good economic benefits. Therefore, it is necessary to understand the basic requirements of mold design and choose appropriate materials.
The working conditions of plastic molds are different. Generally, when the temperature is 150°C-200°C, except for a certain working pressure and temperature outside. According to the use conditions of plastic molds and different processing methods, the basic performance requirements for plastic mold steel will be summarized as follows.
The hardness of the plastic mold is usually after the heat treatment of the mold below 50-60HRC, which is sufficient to ensure the surface hardness and the mold has sufficient rigidity. Because the work process and filling of plastic molds are subject to greater friction, precision molds require precision molds that maintain shape and size to ensure sufficient stability in life. The wear resistance of the steel mold depends on the chemical composition, heat treatment, and hardness of the material, so as to increase the hardness of the mold to improve its wear resistance.