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Preparation method of rare earth carborundum abrasive

A technology of emery and abrasive, applied in the field of preparation of rare earth emery abrasive, can solve the problems of poor high temperature resistance and insufficient hardness, and achieve the effects of smooth surface, improved hardness and toughness, and improved wear resistance.

Inactive Publication Date: 2019-08-13
安徽齐鑫新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the defects of poor high temperature resistance and insufficient hardness of diamond abrasives in the prior art, and provide a method for preparing rare earth diamond abrasives. The prepared abrasives have ultra-high hardness and high temperature resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] A method for preparing a rare earth corundum abrasive. The proportions of the basic constituent materials of the rare earth corundum abrasive are: 60% to 75% of silicon carbide, 1% to 2% of aluminum oxide, 2% to 3% of lanthanum oxide, and 5% to 5% of coal coke 8%, ceramic fiber 4%~7%, and corundum powder 10%~16%. The basic material of this abrasive is composed of a small amount of alumina and rare earth element lanthanum oxide, which improves the hardness and toughness of the abrasive. At the same time, a small amount of ceramic fiber Addition improves the wear resistance and thermal conductivity of the abrasive. If lanthanum oxide is not added, the hardness of the entire abrasive will not be higher due to the lack of rare earth elements. At the same time, the unique high temperature resistance of rare earth elements makes the high temperature resistance of the entire abrasive better than that of traditional emery. The high temperature resistance of the abrasive is highe...

Embodiment 1

[0038] The preparation method of a kind of rare-earth corundum abrasive in this embodiment, the proportions of basic constituent materials are: silicon carbide 60%~67%, aluminum oxide 2%, lanthanum oxide 3%, coal coke 8%, ceramic fiber 7% and corundum Powder 13%.

[0039] It is measured that the microhardness of the abrasive obtained after the preparation of the above ratio of materials is 2800kg / mm 2 , high temperature resistance up to 2200 ℃.

Embodiment 2

[0041] A preparation method of a rare earth emery abrasive in this embodiment, the proportions of the basic constituent materials of the abrasive are: 70% of silicon carbide, 1% of aluminum oxide, 2% of lanthanum oxide, 5% of coal coke, 7% of ceramic fiber and corundum powder 15%.

[0042] It is measured that the microhardness of the abrasive obtained after the preparation of the above ratio of materials is 2700kg / mm 2 , high temperature resistance up to 2100 ℃.

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PUM

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Abstract

The invention relates to a preparation method of a rare earth carborundum abrasive, and belongs to the technical field of abrasive processing. The rare earth carborundum abrasive comprises basic components including 60-75% of silicon carbide, 1-2% of aluminum oxide, 2-3% of lanthanum oxide, 5-8% of coke, 4-7% of ceramic fiber and 10-16% of corundum powder. The prepared abrasive has superhigh hardness and high temperature resistance.

Description

technical field [0001] The invention belongs to the technical field of abrasive processing, and more specifically, relates to a preparation method of rare earth corundum abrasive. Background technique [0002] Abrasives are sharp, hard materials used to grind the surface of softer materials. There are two types of abrasives: natural abrasives and artificial abrasives. Classified by hardness, there are two categories of superabrasives and ordinary abrasives. Abrasives run the gamut from softer household detergents, gemstone abrasives, to the hardest material, diamond. Abrasives are an essential material in the manufacture of every precision product. Many natural abrasives have been replaced by artificial abrasives. Contents of the invention [0003] 1. The technical problem to be solved by the invention [0004] The object of the present invention is to solve the defects of poor high temperature resistance and insufficient hardness of diamond abrasives in the prior art...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14
CPCC09K3/1436
Inventor 高博王伟周衡潘教庆
Owner 安徽齐鑫新材料科技有限公司