Liquid nitrogen deep cooling treatment of metals
Liquid nitrogen deep cooling treatment is a common method of metal material treatment, by immersing the material in liquid nitrogen to make it rapidly cool down to -196 degrees Celsius. This treatment method can effectively improve the mechanical properties of steel materials, non-metals and composite materials to improve the service life of metal parts, and can also form a layer of nitride with high hardness on the surface of the material to improve the anti-wear and corrosion resistance of the material. It should be noted that liquid nitrogen deep cooling treatment should be carried out after the material has been processed and heat treated to obtain further results.
The effect of liquid nitrogen deep cooling treatment depends on several factors such as deep cooling temperature, deep cooling time and heating temperature. Therefore, in practice, it is necessary to develop a suitable treatment plan according to the characteristics and requirements of the material, and to determine the treatment parameters through tests and experimental verification. At the same time, it also needs to be carried out under professional equipment and conditions to ensure safety and treatment results, and having a professional storage container for liquid nitrogen makes people feel more at ease
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