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Nanoscale high-temperature sintered ceramic abrasive and preparation method thereof

A high-temperature sintering and nano-scale technology, applied in the direction of abrasives, grinding/polishing equipment, grinding devices, etc., can solve the problems of short service life, low production efficiency, low processing efficiency, etc., and achieve improved grinding efficiency and long service life The effect of long length and high machining accuracy

Pending Publication Date: 2022-06-28
南通市锋芒复合材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cutting and grinding tools made of traditional ordinary abrasives have the problems of extremely short service life, low hardness, poor wear resistance, and low processing efficiency. During the metal processing process, it is often necessary to stop the machine to replace the cutting and grinding tools. Production efficiency is lower, because research and development a kind of abrasive material that can overcome above defect becomes the technical problem that those skilled in the art need to solve urgently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment provides a nano-scale high-temperature sintered ceramic abrasive, which includes the following components in terms of mass ratio: ordinary abrasive: 40%, additive 2%, the balance is ceramic bond superhard abrasive, and the sum of the above components is 100 %,in:

[0047] Ordinary abrasive is a mixture of sintered dense corundum, alumina and brown corundum mixed in equal proportions;

[0048] The additives include the following components in parts by mass:

[0049] Calcium titanium aluminate: 7 parts, solder: 3 parts, silicon carbide: 3 parts, binder: 10 parts, wetting agent: 2 parts, dispersing agent: 1 part; curing agent: 1 part, V 2 O 5 Sol: 8 parts, sintering additive: 1 part;

[0050] In this embodiment, the solder is Cu-Sn-Ti solder, the wetting agent is dextrin, the dispersant is PEG1000; the curing agent is magnesium oxide; the sintering additive is Mg(NO) 3 ) 2 ·6H 2 O, Ca(NO 3 ) 2 ·4H 2 Mixture of O, ethyl orthosilicate, by mass ratio ...

Embodiment 2

[0073] This embodiment provides a nano-scale high-temperature sintered ceramic abrasive, which includes the following components in terms of mass ratio: ordinary abrasive: 50%, additive 5%, the balance is ceramic bond superhard abrasive, and the sum of the above components is 100 %,in:

[0074] Ordinary abrasive is a mixture of sintered dense corundum, alumina and brown corundum mixed in equal proportions;

[0075] The additives include the following components in parts by mass:

[0076] Calcium titanate aluminate: 20 parts, solder: 8 parts, silicon carbide: 15 parts, binder: 20 parts, wetting agent: 5 parts, dispersant: 3 parts; curing agent: 3 parts, V 2 O 5 Sol: 15 parts, sintering additive: 4 parts;

[0077] In this embodiment, the solder is Cu-Sn-Ti solder, the wetting agent is dextrin, the dispersant is PEG1000; the curing agent is a mixture of magnesium oxide and aluminum sulfate; the sintering additive is Mg(NO) 3 ) 2 ·6H 2 O, Ca(NO 3 ) 2 ·4H 2 Mixture of O, e...

Embodiment 3

[0100] This embodiment provides a nano-scale high-temperature sintered ceramic abrasive, which includes the following components in terms of mass ratio: ordinary abrasive: 45%, additive 4%, the balance is ceramic bond superhard abrasive, and the sum of the above components is 100 %,in:

[0101] Ordinary abrasive is a mixture of sintered dense corundum, alumina and brown corundum mixed in equal proportions;

[0102] The additives include the following components in parts by mass:

[0103] Calcium titanium aluminate: 13 parts, solder: 5 parts, silicon carbide: 8 parts, binder: 15 parts, wetting agent: 4 parts, dispersant: 2 parts; curing agent: 2 parts, V 2 O 5 Sol: 11 parts, sintering additive: 3 parts;

[0104] In this embodiment, the solder is Cu-Sn-Ti solder, the wetting agent is dextrin, the dispersant is PEG1000; the curing agent is alkylene triamine; the sintering additive is Mg(NO) 3 ) 2 ·6H 2 O, Ca(NO 3 ) 2 ·4H 2 Mixture of O, ethyl orthosilicate, by mass ratio...

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Abstract

The invention discloses a nanoscale high-temperature sintered ceramic abrasive which comprises the following components in percentage by mass: 40-50% of a common abrasive, 2-5% of an additive and the balance of a ceramic bond superhard abrasive, the sum of the components is 100%, and the common abrasive is a mixture of sintered compact corundum, aluminum oxide and brown aluminum oxide which are mixed in equal proportion; the additive comprises the following components in parts by mass: 7-20 parts of titanium calcium aluminate, 3-8 parts of brazing filler metal, 3-15 parts of silicon carbide, 10-20 parts of a binding agent, 2-5 parts of a wetting agent and 1-3 parts of a dispersing agent; 1-3 parts of a curing agent, 8-15 parts of V2O5 sol and 1-4 parts of a sintering additive; the preparation method is simple and easy to implement, and the prepared abrasive is good in binding property with a binding agent and has excellent performance such as good hardness and abrasion resistance.

Description

technical field [0001] The invention relates to a ceramic abrasive, in particular to a nano-scale high-temperature sintered ceramic abrasive and a preparation method thereof. Background technique [0002] Abrasive is a kind of granular material with high hardness and certain mechanical strength. Abrasive has high strength and hardness. It is the main body to remove workpiece material and is used to manufacture abrasive tools or directly for grinding and polishing. Abrasives are widely used in industry, especially when machining high-precision or low-roughness parts or harder parts, abrasives and abrasives are essential. Generally speaking, abrasives have the following basic characteristics: 1) high hardness, the hardness of the abrasive must be higher than that of the object to be processed; 2) moderate crush resistance and self-sharpening; 3) good thermal stability and chemical stability. [0003] Due to a series of excellent physical and chemical properties such as high ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/06B24D3/10B24D3/34B24D18/00C04B35/18C04B35/626
CPCB24D3/06B24D3/10B24D3/342B24D18/0009C04B35/18C04B35/62665C04B2235/3409C04B2235/3201C04B2235/3203C04B2235/3244C04B2235/3284C04B2235/3865C04B2235/3239
Inventor 王荣生赵志伟
Owner 南通市锋芒复合材料科技有限公司
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