A kind of high thermal conductivity cutting tool ceramics and preparation method thereof

Abstract

The invention relates to a high thermal conductivity cutting tool ceramic, which is prepared from the following raw materials by weight part: 8-12 of quartz, 35-40 of zirconium oxide, 1-2 of CeO, 1-2 of zinc phosphate, 5-10 of ZnO, 0.8-1.4 of K2O, 0.5-0.7 of cyanuric acid, 0.4-0.6 of triglycidyl ester, 0.8-1 of hydroxypropyl starch, 1-1.4 of indium tin oxide, a proper amount of ethanol, 45-50 of silicon nitride, 0.8-1.2 of sodium hexametaphosphate, a proper amount of deionized water, 1.7-2 of polyethylene glycol, and 3-4 of a wear-resistant additive. The ceramic provided by the invention has the characteristics of sophisticated making technology, fine texture, good toughness, and easy modeling. By adding indium tin oxid, thermal conductivity of the ceramic is greatly increased, friction overheating and damage to equipment can be prevented, service life of the cutting tool is prolonged, and the cost is reduced. Through use of CeO, wear resistance of the ceramic is increased. The wear-resistant additive involved in the invention can increase the surface smoothness, wear resistance and heat resistance of the ceramics.

Description

technical field [0001] The invention relates to the field of ceramic cutting tool materials, in particular to a cutting tool ceramic with high thermal conductivity 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 fra...

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 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, 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, 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 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