Application of cryogenic treatment in tungsten steel cutting tools

Cryogenic treatment technology can effectively improve the mechanical properties and service life of composite materials, including tungsten steel cutting tools. ‌

Cryogenic treatment technology is a method of treating materials below -130℃. It is a new technology developed in the 1960s on the basis of ordinary cold treatment (-100~0℃). ‌This technology can not only improve the mechanical properties and service life of materials, but also stabilize the size, improve uniformity, reduce deformation, and is easy to operate, does not damage the workpiece, is pollution-free, and has low cost. It has positive application prospects and development space. ‌Cryogenic treatment technology has been widely used in aerospace, precision instruments, friction parts, tools, molds, and measuring tools, and has achieved great economic benefits. ‌

In the application of tungsten steel cutting tools, the main consumables of cryogenic treatment are liquid nitrogen (nitrogen is one of the main components of the atmosphere, non-toxic and odorless), the equipment power is within one kilowatt, and the power consumption is very small. The application of cryogenic treatment is a completely environmentally friendly technology that can significantly improve the quality of tools to a new level, reduce manufacturing pressure, significantly reduce machining costs, and bring significant economic benefits. In addition, cryogenic treatment can also reduce supersaturation, precipitate dispersed, ultra-fine carbides with a size of only 20-60A and coherent with the matrix, strengthen the matrix structure, and thus improve the wear resistance and service life of the tool. In summary, cryogenic treatment technology has shown its unique advantages and significant effects in the application of tungsten steel tools, which not only improves the performance and life of the tool, but also reduces the manufacturing cost. It is a technology worthy of promotion and application. Our company has made a good breakthrough in this technical research to meet customer needs.