With the continuous development of industrial technology, mold parts, as an important component of industrial production, directly affect product precision and service life. The hardness of mold parts is one of the key factors affecting product quality. This article will analyze the main factors influencing mold parts hardness.
The material selection of mold parts is the primary factor determining hardness. Commonly used mold steel materials include Cr12, Cr12MoV, SKD11, SKD61, etc. Different materials have different carbon content and alloy element content, and their hardness performance after heat treatment also varies. Choosing suitable materials is the prerequisite for ensuring mold parts hardness.
The heat treatment process is the core link affecting mold parts hardness. Parameters such as quenching temperature, holding time, cooling method, tempering temperature and times will have a significant impact on the final hardness. A reasonable heat treatment process can enable the material to obtain a uniform martensite structure, thus achieving the ideal hardness requirements.
The processing flow of mold parts will also have a certain impact on hardness. Processing stress generated during rough machining, finish machining, polishing and other processes, if not eliminated in time, will cause deformation or uneven hardness of the parts. Therefore, it is necessary to perform stress relief annealing after key processes.
Surface treatment technologies such as titanium coating, nitriding, PVD coating can greatly improve surface hardness and wear resistance while maintaining the toughness of the mold part core. This is of great significance for extending the service life of mold parts.
In summary, the hardness of mold parts is affected by many factors. In actual production, it is necessary to comprehensively consider materials, heat treatment, processing technology and other aspects to produce mold parts products with qualified hardness and reliable quality. Kunshan Fushuntian Precision Mold Parts Co., Ltd. has a complete quality control system to ensure that every product meets the hardness standards required by customers.
