The progress and application of mold vacuum heat treatment technology Liu Huiping, Wen Rongsheng (Southern Institute of Metallurgy, Ganzhou, Jiangxi 341000) have been more and more widely used. The author combines new vacuum heat treatment equipment and mold vacuum heat treatment examples to introduce some of mold vacuum heat treatment New information and status. 0
It is said that the mold is an important forming equipment in the industry. Modern industrial production puts forward the requirements of high speed, good quality, low cost and long life for molds. The heat treatment of the mold is a key link that affects the above four requirements. Among the various heat treatment processes of the mold, vacuum heat treatment has many advantages. In recent years, there has been rapid development in vacuum heat treatment of molds at home and abroad. Among them, some foreign companies have expanded to Taiwan
, Hong Kong and the mainland with their advanced mold materials and vacuum heat treatment equipment. The author worked in a foreign-funded mold heat treatment center in Shenzhen for a period of time, and has a certain understanding of the current international vacuum heat treatment technology for molds. Xiao Jiete is here to learn about some new information and conditions at home and abroad. Make an introduction.
1 Significance of mold vacuum heat treatment Mold manufacturing costs are high, and its quality and life are key factors affecting product quality and cost. Therefore, the surface quality and deformation of the mold during heat treatment have high requirements. In order to prevent the surface oxidation, decarburization and recarburization of the mold during heat treatment, the traditional mold heat treatment mainly uses salt bath furnace heating or box furnace protection heating, and later also uses controlled atmosphere heating, but these heating methods are heated at high temperatures. It is more difficult to keep the gas medium, protective agent or salt bath neutral during the entire heating process to prevent them from reacting with the metal. Vacuum can be used as an ideal heating medium to process molds.
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