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A high-performance ceramic material and its application in the preparation of ceramic knives

A ceramic material and high-performance technology, applied in high-performance ceramic materials and its application in the preparation of ceramic knives, can solve the problems of high brittleness, high cost, and insufficient toughness, and achieve high hardness, high strength, and high toughness. Effect

Active Publication Date: 2019-02-19
浙江锐克特种陶瓷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current ceramic cutting materials still have problems such as high cost, insufficient toughness, high brittleness, uneven hardness, poor heat dissipation, and poor self-lubrication, which need to be solved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: Preparation of high-performance ceramic materials

[0018] Weight ratio of raw materials:

[0019] Silicon nitride, 85 parts; chromium oxide, 4 parts; silicon carbide, 5 parts; silicon dioxide, 4 parts; titanium dioxide, 5 parts; calcium fluoride, 3 parts; calcium borate, 2 parts; bismuth oxide, 3 parts; Polyethylene glycol, 1.0 part; polyacrylic acid, 0.7 part; deionized water, 30 parts; a total of 7 parts of borax and sodium metasilicate, the weight ratio of borax and sodium metasilicate is 6:1.

[0020] Preparation:

[0021] Step S1, mixing chromium oxide, silicon carbide, silicon dioxide, calcium fluoride, calcium borate, bismuth oxide, borax and sodium metasilicate, ball milling, and passing through a 200-mesh sieve to obtain particles;

[0022] Step S2, mixing silicon nitride and titanium dioxide, ball milling, and passing through a 250-mesh sieve to obtain particles;

[0023] Step S3, mix the particles of step S1 and S2, add deionized water to mix into a mud, se...

Embodiment 2

[0025] Example 2: Preparation of high-performance ceramic materials

[0026] Weight ratio of raw materials:

[0027] Silicon nitride, 80 parts; chromium oxide, 3 parts; silicon carbide, 4 parts; silicon dioxide, 3 parts; titanium dioxide, 4 parts; calcium fluoride, 2 parts; calcium borate, 1 part; bismuth oxide, 2 parts; Polyethylene glycol, 0.8 parts; polyacrylic acid, 0.6 parts; deionized water, 25 parts; a total of 6 parts of borax and sodium metasilicate, the weight ratio of borax and sodium metasilicate is 5:1.

[0028] Preparation:

[0029] Step S1, mixing chromium oxide, silicon carbide, silicon dioxide, calcium fluoride, calcium borate, bismuth oxide, borax and sodium metasilicate, ball milling, and passing through a 200-mesh sieve to obtain particles;

[0030] Step S2, mixing silicon nitride and titanium dioxide, ball milling, and passing through a 250-mesh sieve to obtain particles;

[0031] Step S3, mix the particles of step S1 and S2, add deionized water to mix into a mud, s...

Embodiment 3

[0033] Example 3: Preparation of high-performance ceramic materials

[0034] Weight ratio of raw materials:

[0035] Silicon nitride, 90 parts; chromium oxide, 5 parts; silicon carbide, 6 parts; silicon dioxide, 5 parts; titanium dioxide, 6 parts; calcium fluoride, 4 parts; calcium borate, 3 parts; bismuth oxide, 4 parts; Polyethylene glycol, 1.2 parts; polyacrylic acid, 0.8 parts; deionized water, 35 parts; a total of 8 parts of borax and sodium metasilicate, and the weight ratio of borax and sodium metasilicate is 7:1.

[0036] Preparation:

[0037] Step S1, mixing chromium oxide, silicon carbide, silicon dioxide, calcium fluoride, calcium borate, bismuth oxide, borax and sodium metasilicate, ball milling, and passing through a 200-mesh sieve to obtain particles;

[0038] Step S2, mixing silicon nitride and titanium dioxide, ball milling, and passing through a 250-mesh sieve to obtain particles;

[0039] Step S3, mix the particles of step S1 and S2, add deionized water to mix into a m...

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PUM

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Abstract

The invention discloses a high-performance ceramic material and applications of the high-performance ceramic material in preparation of ceramic cutting tools. The high-performance ceramic material is prepared from the following raw materials by weight: 80-90 parts of silicon nitride, 3-5 parts of chromium oxide, 4-6 parts of silicon carbide, 3-5 parts of silicon dioxide, 4-6 parts of titanium dioxide, 2-4 parts of calcium fluoride, 1-3 parts of calcium borate, 2-4 parts of bismuth oxide, 0.8-1.2 parts of polyethylene glycol, 0.6-0.8 part of polyacrylic acid, 25-35 parts of deionized water, and 6-8 parts of borax and sodium metasilicate, wherein a weight part ratio of borax to sodium metasilicate is 5-7:1. According to the present invention, the ceramic material has advantages of high toughness, high hardness and high strength, and can be used as the ceramic cutting tool material; and the technical effect is related to the weight part ratio of borax to sodium metasilicate in the raw material, wherein the performance of the ceramic material is the best when the weight part ratio of borax to sodium metasilicate is 5-7:1.

Description

Technical field [0001] The invention relates to the field of tool materials, in particular to a high-performance ceramic material and its application in preparing ceramic tools. Background technique [0002] Ceramic cutting tools have the characteristics of high hardness, high density, high temperature resistance, anti-magnetization, oxidation resistance, strong corrosion resistance, good chemical stability, high wear resistance, etc., and are a good substitute for traditional cutting tools such as high-speed steel. This solves the scarcity of resources such as molybdenum and nickel. However, current ceramic cutting materials still have problems such as high cost, insufficient toughness, high brittleness, uneven hardness, poor heat dissipation, and poor self-lubrication, which need to be resolved. Summary of the invention [0003] The purpose of the present invention is to provide a high-performance ceramic material and its application in preparing ceramic tools. [0004] The abov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/584C04B35/645
CPCC04B35/584C04B35/645C04B2235/3208C04B2235/3232C04B2235/3241C04B2235/3298C04B2235/3409C04B2235/3418C04B2235/3826
Inventor 汪辉
Owner 浙江锐克特种陶瓷有限公司