In order to meet the stringent requirements of international environmental protection standards, the concept of circular economy of comprehensive utilization of wood and continuous supply of raw materials has promoted the rapid development of the wood processing industry. As a result, Rizhao Longte Machine Tool Research Institute developed vacuum heat treatment and cryogenic technology for woodworking tools. The technology has been applied to Longte mechanical cutting products and will be unveiled at the upcoming 12th International Woodworking Machinery and Furniture Manufacturing Equipment Exhibition/12th International Furniture Accessories, Materials and Wood Products Fair.
It is understood that the tool vacuum heat treatment technology has a series of outstanding advantages: the vacuum heat treatment has the effect of preventing oxidation. The surface is not oxidized, decarburized, and has the function of reduction and rust removal, which saves the rough machining process of the cutting tool, saves the consumption of expensive tool steel and raw and auxiliary materials, saves the processing time and reduces the product cost; the vacuum heat treatment has vacuum degassing, Degreasing has no risk of hydrogen embrittlement, prevents the surface of the refractory material of the refractory metal material from embrittlement, improves the surface purity of the tool material, improves the fatigue strength, plasticity, toughness and corrosion resistance of the tool, and improves the service life of the tool; vacuum heat treatment has quenching Small deformation, can reduce the normal quenching deformation of the existing stress, reduce the possibility of fracture during the use of the blade, vacuum heat treatment blade deformation is 1/2-1/10 of the salt bath quenching, quenching generally do not need correction can be fine Milled to finished product; vacuum heat treatment process is stable and repeatable. Once the process is determined, the heat treatment operation will run automatically as long as the process is entered. Avoid the fluctuation of the tool quality caused by the instability of conventional heat treatment process; vacuum heat treatment consumes less power, the power consumption is 80% of the conventional heat treatment, the production cost is low, but the one-time investment cost is large; the vacuum heat treatment operation is safe, the degree of automation is high, and the working environment is good , Pollution-free and pollution-free, in line with the requirements of clean production and continuous development of industrial enterprises in China.
The application of cryogenic technology on tool products evolved from the application of mold industry. Cryogenic treatment, like heat treatment, has a lot to do with material properties, treatment temperatures, and processing speeds, and the effects of different treatment methods are significantly different. Cryogenic technology is a process method for materials below -130 °C. Cryogenic treatment not only can significantly improve the mechanical properties and service life of the tool, stabilizes the size, improves uniformity, reduces deformation, and is easy to operate without destroying. Workpieces, non-pollution, low cost, and great help for the improvement of tool quality.