Cryogenic treatment is a method of treating materials with liquid nitrogen as a cooling medium. Liquid nitrogen cryogenic treatment technology is applied to worn tools, mold cutter materials, and later expanded to alloy steel, cemented carbide, etc., this method can change the internal structure of metal materials, thereby improving the mechanical and processing properties of the material, it is currently one of the toughening treatment process.
The cryogenic treatment of liquid nitrogen can cause significant changes in the structure, effectively promote the transformation of retained austenite to martensite and the precipitation of ultrafine carbides, so that the product obtains better comprehensive mechanical properties. The service life of cryogenic products is more than four times longer than that of conventional heat treatment,it has very important use value.
As more and more customers require products to be cryogenically treated, liquid nitrogen cryogenic treatment machine as a commonly used cryogenic machine, gradually entered the heat treatment manufacturers and became an indispensable machine. Using liquid nitrogen as the refrigerant, new cooling technology, temperature control technology and liquid nitrogen dispersion technology are adopted to make the process of program-controlled heating, constant temperature and cooling are uniform and stable. Ultra-low temperature can reach -196 celsius, intelligent control, simple and convenient operation, meet the requirements of cooling and environmental protection.
Inner cavity dimension
Why take cryogenic treatment of the workpiece?
* To improve the hardness and strength of workpiece
* To improve the abrasion resistance of workpiece
* To improve the impact toughness
* To improve the fatigue strength
* To improve the corrosion resistance of workpiece
* To improve the internal stress distribution of workpiece
* To ensure the dimension accuracy of workpiece