Special antiwear ceramic for cutting tools and preparation method thereof

A technology for special ceramics and cutting tools, applied in the field of ceramic tool materials, can solve the problems of insufficient hardness, poor heat dissipation, brittleness, etc., and achieve the effects of increasing fineness and density, increasing surface smoothness, and long service life.

Active Publication Date: 2015-02-25
宜宾市智威科技有限公司
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  • Abstract
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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
Ceram

Method used

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Embodiment Construction

[0014] A wear-resistant special ceramic for cutting tools, made of the following raw materials in parts by weight (kg): chromium oxide 10, tin oxide 13, sodium amphibole 14, Nb2O5 20, Ta2O5 6, fumed aluminum oxide 25, magnesium electrical Stone 10, china clay 23, sodium dodecylbenzene sulfonate 1, magnesium oxide 1.5, phosphate ester 0.5, deionized water appropriate amount, ethanol appropriate amount, polyethylene glycol 1.8, wear-resistant additive 3.5;

[0015] The wear-resistant additive is made of the following raw materials in parts by weight (kg): silicon nitride 1.2, aluminum nitride 1.2, titanium nitride 1.2, carbon nitride 0.6, zirconia 1.5, diamond powder 1.5, hafnium oxide 0.3, Silane coupling agent kh-550 1.5, silver nitride 0.8, silicon carbide 1.5, polyacrylate 0.5, ethanol 7, water 9; the preparation method is: add ethanol, polyacrylate, silane coupling agent kh-550 into water, Stir evenly, then add zirconia and silicon carbide, heat to 75°C, stir and react for ...

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PUM

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Abstract

The invention relates to a special antiwear ceramic for cutting tools, which is prepared from the following raw materials in parts by weight: 8-12 parts of chrome oxide, 12-14 parts of tin oxide, 13-15 parts of riebeckite, 18-22 parts of Nb2O5, 5-7 parts of Ta2O5, 24-27 parts of vapor-phase aluminum oxide, 9-11 parts of dravite, 20-25 parts of porcelain clay, 0.7-1.2 parts of sodium dodecyl benzene sulfonate, 1-2 parts of magnesium oxide, 0.4-0.6 part of phosphate, a right amount of deionized water, a right amount of ethanol, 1.7-2 parts of polyethyleneglycol and 3-4 parts of wear-resistant assistant. The folding strength of the ceramic is greater than 50 MPa, the number of times of circulating quenching and anti-thermal-shock between 1000 DEG C and 25 DEG C is greater than 35, and the ceramic is suitable for cutting tools and has the advantages of long service life and low cost. The vapor-phase aluminum oxide, Nb2O5 and Ta2O5 are added to enhance the fineness, compactness and wear resistance of the ceramic. The wear-resistant assistant can enhance the surface smoothness, wear resistance and heat resistance of the ceramic.

Description

technical field [0001] The invention relates to the field of ceramic tool materials, in particular to a wear-resistant special ceramic 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, p...

Claims

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Application Information

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IPC IPC(8): C04B35/10C04B35/622
CPCC04B35/10C04B35/63424C04B35/63488C04B2235/3241C04B2235/3251C04B2235/3293C04B2235/656C04B2235/9607C04B2235/963
Inventor 席少非
Owner 宜宾市智威科技有限公司
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