On 2018-08-08 14:48:54
Difference between vacuum heat treatment and cold treatment of cutting tools
The technology of tool vacuum heat treatment has a series of outstanding advantages: vacuum heat treatment has the function of anti-oxidation.
The surface is not oxidized, decarburized and has the function of reducing and derusting, which can save the rough machining process of the tool, save the consumption of expensive tool steel and raw and auxiliary materials, save the processing time and reduce the cost of the product; the vacuum heat treatment has the function of vacuum degassing, degreasing and no danger of hydrogen embrittlement, prevent the surface embrittlement of the refractory metal of the tool material, and improve the surface purity and progress of the tool material The fatigue strength, plasticity, toughness and corrosion resistance of the cutting tool improve the service life of the cutting tool;
Vacuum heat treatment has small quenching deformation, which can reduce the existence of correction stress of conventional quenching deformation and reduce the possibility of blade fracture during use. The deformation of vacuum heat treatment blade is 12-110 of salt bath quenching. After quenching, the blade can be finely ground to the finished product without correction;
The vacuum heat treatment process has good stability and repeatability. Once the process is determined, the heat treatment control will run automatically as long as the process program is input. Avoid tool quality fluctuation caused by normal heat treatment process;
The power consumption of vacuum heat treatment is less than 80% of that of conventional heat treatment. The production cost is low, but the one-time investment cost is large;
The operation of vacuum heat treatment is safe, highly automatic, good working environment, pollution-free and pollution-free, which meets the requirements of clean production and sustainable development of industrial enterprises.
The application of deep cooling technology in tool products has evolved from the application of mold industry. Like heat treatment, cryogenic treatment has a lot to do with material properties, treatment temperature and treatment speed. Different treatment methods have different effects. The cryogenic technology is a kind of processing method for materials under - 130 ℃. The cryogenic treatment can not only obviously improve the mechanical function and service life of the cutting tool, not disorder the size, improve the average, reduce the deformation, but also operate easily, do not damage the workpiece, no pollution, low cost, which is very helpful for the improvement of the quality of the cutting tool.