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What is the quenching of plastic molds?

Author: Shenye Plastic TechnologyDate:2021-10-12Pageviews:397

Quenching can improve the quality of plastic molds and is a heat treatment technique often used in processing. Quenching is mainly to heat the metal material to a temperature sufficient for phase change to be kept, and then to obtain the martensite structure by rapid cooling greater than the critical cooling rate, and then use tempering at different temperatures to obtain the required mechanical properties.


       The quenching temperature should take into account the shape and size of the mold and the original structure. In order to ensure that the martensite structure can be obtained after quenching, it is necessary to obtain uniform and fine austenite crystals as the basic principle. The heating temperature is based on the critical point of the die steel. Sure.


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       The quenching time is generally calculated together with the production and heat preservation of the workpiece. There are many factors that can affect the heating time of quenching. The main components and characteristics of the mold, the shape and size of the heated workpiece, and the heating medium must be considered.


       Under normal circumstances, the cooling rate of quenching requires the critical cooling rate, but if the rate is too large, the internal stress of the workpiece will increase and cause deformation or cracking. Therefore, it is necessary to select a suitable quenching medium, commonly used aqueous solutions, mineral oil, and molds. Quenching can also be carried out in air.


       Shenye is a mold manufacturer specializing in plastic molds, various plastic shells, injection molding processing, mold manufacturing, oil spray screen printing, product development and assembly. Cooperation with Shenye can guarantee the quality of your products to a large extent, and the plastic products produced by Shenye are very exquisite and beautiful, and are loved by customers. Shenye sincerely looks forward to cooperating with you!


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