Ceramic for cutter and preparation method thereof

Abstract

The invention provides ceramic for a cutter. The ceramic is prepared from the following raw materials in parts by weight: 20-23 parts of silica powder, 7-10 parts of boron nitride, 24-27 parts of silicon carbide, 30-35 parts of quartz, 0.7-0.9 part of triethyl citrate, 0.4-0.6 parts of magnesium stearate, 3-4 parts of alumina fiber, 7-9 parts of nanosilicon dioxide, 0.2-0.4 part of propylene glycol alginate, a proper amount of deionized water, 1.7-2 parts of polyethylene glycol and 3-4 parts of a wear-resisting additive. The ceramic has fine texture and good wear resistance without air holes; the alumina fiber and the nanosilicon dioxide are added to the ceramic, so that the wear resistance, the thermal conductivity and the smoothness of the ceramic are greatly improved; the ceramic is suitable for the cutter and low in cost; by using the wear-resisting additive, the surface smoothness, the wear resistance and the heat resistance of the ceramic can be improved.

Description

technical field [0001] The invention relates to the field of ceramic tool materials, in particular to ceramics for cutting tools and a preparation method thereof. Background technique [0002] With the development of high technology, the mechanical processing industry has put forward more stringent and demanding requirements for tool materials. Now it is necessary to process materials with higher hardness, higher cutting efficiency, and higher machining accuracy. This requires higher For the performance of cutting tools, traditional cutting materials such as high-speed steel are not hard enough, and scarce resources such as molybdenum and nickel are wasted, so ceramic cutting tools came into being. Ceramic cutting tools have the characteristics of high hardness, high density, high temperature resistance, anti-magnetization, anti-oxidation, strong corrosion resistance, good chemical stability, and high wear resistance, but they are still fragile, poor heat dissipation, and p...

AI Technical Summary

Problems solved by technology

[0002] With the development of high technology, the mechanical processing industry has put forward more stringent and demanding requirements for cutting tool materials. Now it is necessary to process materials with higher hardness and require higher The cutting efficiency and machining accuracy are also required to be high, which requires the performance of the tool to be improved. The hardness of traditional high-speed steel and other cutting materials is not enough, and the scarce resources such as molybdenum and nickel are wasted. Therefore, ceramic tools came into being.

Ceramic cutting tools have the characteristics of high hardness, high density, high temperature resistance, anti-magnetization, anti-oxidation, strong corrosion resistance, good chemical stability, and high wear resistance, but they are still fragile, poor heat dissipation, and poor thermal shock resistance. , limited anti-wear performance and other shortcomings need to be improved, and at the same time need to continuously reduce production costs to achieve the maximum benefit of the enterprise and promote scientific and technological progress