Microcrystalline ceramic corundum abrasive and manufacturing method thereof

A technology of microcrystalline ceramics and manufacturing methods, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of SG abrasive blank and other problems, and achieve the effects of large grinding ratio, high grinding rate and good self-sharpening.

Active Publication Date: 2019-07-02
SHANDONG TIANHUI GRINDING WEAR TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the SG abrasives used in China are generally imported, and the domestic sintered SG abrasives are still blank.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A microcrystalline ceramic corundum abrasive, the abrasive is 2.4Kg of lanthanum nitrate hexahydrate, 3-5 parts of hydroxyapatite and 10Kg of dilute nitric acid with a solute mass fraction of 10%. 30Kg of alumina-based ceramic micropowder obtained by atomizing the sodium hydroxide gel with a solute mass fraction of 10%;

[0022] The manufacture method of above-mentioned abrasive material, comprises the following steps:

[0023] 1) Raw material preparation

[0024] 1. Raw material preparation: Prepare 2.4Kg of lanthanum nitrate hexahydrate, 3-5 parts of hydroxyapatite, 71Kg of aluminum chloride hexahydrate, 10Kg of dilute nitric acid with 10% solute mass fraction, and sufficient amount of 10% solute mass fraction by weight Sodium hydroxide solution, sufficient deionized water;

[0025] ②Equipment preparation: Prepare the air-cooled vacuum tempering furnace, the silica box with hydrophobic air holes made by hydrofluoric acid mist corrosion, atomization equipment, silica...

Embodiment 2

[0035] The whole is consistent with Example 1, the difference is:

[0036] A microcrystalline ceramic corundum abrasive, the abrasive is 2.2Kg of lanthanum nitrate hexahydrate, 3Kg of hydroxyapatite and 8Kg of dilute nitric acid with a solute mass fraction of 5% modified aluminum chloride hexahydrate 82Kg, and the solute atomized at high temperature 35Kg of alumina-based ceramic micropowder obtained by sodium hydroxide gel with a mass fraction of 10%;

[0037] The manufacture method of above-mentioned abrasive material, comprises the following steps:

[0038] 1) Raw material preparation

[0039] ① Raw material preparation: Prepare 2.2Kg of lanthanum nitrate hexahydrate, 3Kg of hydroxyapatite, 82Kg of aluminum chloride hexahydrate, 8Kg of dilute nitric acid with 5% solute mass fraction, and a sufficient amount of sodium hydroxide solution with 10% solute mass fraction by weight , Sufficient deionized water;

[0040] 2) Preparation of acidified collagen solution

[0041] ①Af...

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PUM

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Abstract

The invention discloses a microcrystalline ceramic corundum abrasive and a manufacturing method thereof. According to the abrasive of the invention, 2.2-2.4 parts by weight of lanthanum nitrate hexahydrate and 8-10 parts of dilute nitric acid with the mass fraction of a solute being 5-10% modify 71-82 parts by weight of aluminum chloride hexahydrate, and then the product passes through high-temperature atomized sodium hydroxide gel with the mass fraction of a solute being 10% to obtain 30-35 parts by weight of alumina-based ceramic micro-powder. The abrasive of the invention has the technicaleffects of microcrystalline structure, fine and dense cutting edge, high strength, good toughness, good self-sharpening performance, high removal rate of grinding and high grinding ratio.

Description

technical field [0001] The invention relates to the field of corundum abrasive manufacturing in the machine tool industry, in particular to a microcrystalline ceramic corundum abrasive and a manufacturing method thereof. Background technique [0002] For polishing and abrasive materials, it mainly refers to the selection of grinding media, which is closely related to the material of the workpiece, because there are many types of main media in the grinding materials, such as brown corundum grinding and polishing abrasives, corncob abrasives, walnut shell abrasives, high-frequency Porcelain abrasives, alumina abrasives, zirconium bead abrasives, steel balls, etc., each have their own characteristics and adaptability. Proper use can make the surface of the workpiece smooth and beautiful. [0003] Microcrystalline ceramic corundum abrasive, also called SG abrasive, is a new type of alumina-based abrasive. It maintains the high hardness and wear-resistant characteristics of white...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/10C04B35/624C09K3/14
CPCC04B35/10C04B35/624C04B2235/443C04B2235/447C04B2235/95C04B2235/96C09K3/1418C09K3/1436
Inventor 王超尹方勇王峰周俊华阎蛇民段广彬朱红海王征田新博
Owner SHANDONG TIANHUI GRINDING WEAR TECH DEV CO LTD
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