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Sintering method of abrasion resisting abrasive particles

A sintering method and abrasive grain technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of affecting the grinding effect, abrasive blockage, high temperature, etc., and achieve low manufacturing cost, good wear resistance, and grinding efficiency high effect

Active Publication Date: 2014-07-30
ZIBO RIKEN MT COATED ABRASIVES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the existing abrasive grains support the abrasive tool, during the grinding process, the existing abrasive grains have a relatively rough surface at the beginning, and the grinding effect is good, but as the grinding time prolongs, the surface roughness of the existing abrasive grains decreases, and the existing abrasive grains The surface of the abrasive grain becomes smoother and smoother, resulting in a rapid decrease in the grinding effect of the abrasive tool
The temperature of the existing abrasive grains is too high during the grinding process, which causes the surface temperature of the workpiece (metal) to be polished to be too high, and the surface of the workpiece to be polished becomes hot and red in a large area. After grinding, the polished part is easy to turn black and dark after cooling , lost the original bright color of the workpiece
The existing abrasive particles have a high temperature during the grinding process of the workpiece, and the particles are small and easy to fly, and finally adhere to the gap between the abrasive particles, causing the abrasive tool to be blocked and affecting the grinding effect

Method used

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  • Sintering method of abrasion resisting abrasive particles
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  • Sintering method of abrasion resisting abrasive particles

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Embodiments 1-9 are specific embodiments of the sintering method of wear-resistant abrasive grains of the present invention, and embodiment 1 is the best embodiment.

[0024] Example 1

[0025] 1) Using hot air drying equipment, mix according to the ratio of 10 parts by weight of sodium silicate, 5 parts of sodium carbonate, 25 parts of slag powder and 100 parts of alumina abrasive with a particle size of 80#, and dissolve in 120 parts of ethylene glycol after mixing evenly Diethyl ether solvent, and add 4 parts of ethylenediamine as a catalyst for mixing, constant temperature heating, keep the temperature at 35~45°C;

[0026] 2) Mix to semi-gel state, mix 0.5 part of template agent with cetyltrimethylammonium bromide (CTAB): ethylenediamine=1:2 by mass ratio, add template agent to semi-gel state In the molten material; after stirring evenly, sintering, the sintering temperature is 300~400°C, and the sintering time is 8 hours; after sintering, it is quickly annealed ...

Embodiment 2

[0028] 1) Using hot air drying equipment, mix according to the ratio of 15 parts by weight of lithium silicate, 8 parts of potassium bicarbonate, 30 parts of modified dolomite powder and 100 parts of silicon carbide abrasive with a particle size of 240#, and dissolve them in 140 Parts of ethylene glycol ether solvent, and add 5 parts of ethylenediamine as a catalyst for mixing, constant temperature heating, keep the temperature at 40~50°C;

[0029] 2) Mix to semi-gel state, mix 0.9 parts of template agent with cetyltrimethylammonium bromide (CTAB):ethylenediamine=1:2.5 by mass ratio, add template agent to semi-gel state In the molten material; after stirring evenly, sintering, the sintering temperature is 300~400°C, and the sintering time is 9 hours; after sintering, anneal and cool down quickly, crush, sieve, and separate the 20# abrasive grains.

Embodiment 3

[0031] 1) Using hot air drying equipment, mix according to the ratio of 5 parts by weight of aluminum dihydrogen phosphate, 6 parts of sodium hydroxide, 10 parts of modified kaolin and 60 parts of calcined alumina with a particle size of 1200#, and dissolve in 100 parts after mixing evenly Part of ethylene glycol ether solvent, and add 2 parts of ethylenediamine as a catalyst for mixing, constant temperature heating, keep the temperature at 30~40°C;

[0032] 2) Mix to semi-gel state, mix 0.8 parts of template agent with cetyltrimethylammonium bromide (CTAB): ethylenediamine=1:2.5 by mass ratio, add template agent to semi-gel state In the molten material; after stirring evenly, sintering, the sintering temperature is 300~400°C, and the sintering time is 6 hours; after sintering, it is quickly annealed and cooled, crushed, sieved, and 16# abrasive grains are separated.

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Abstract

The invention discloses a sintering method of wear-resistant abrasive grains, which belongs to the technical field of preparation of coated abrasive tools. In the present invention, 5-15 parts of mineral polymer binder, 1-10 parts of basic compound, 10-30 parts of filler and 60-100 parts of abrasive are mixed, dissolved in ethylene glycol ether, and 2-5 parts of catalyst are added. Heat and knead at a constant temperature of 30~50°C; knead to a semi-gel state, add 0.5~1 part of template agent for sintering, sintering temperature is 300~400°C, sintering time is 6~9 hours, rapidly anneal and cool down, crush, sieve, and separate abrasive grains of the same size. The abrasive grains prepared by the wear-resistant abrasive grain sintering method of the present invention are wear-resistant, anti-clogging, and do not burn workpieces during long-term grinding.

Description

Technical field [0001] A wear -resistant and abrasive sintering method belongs to the field of painting and abrasive preparation technology. Background technique [0002] Applying abrasives refers to the grinding gear made of adhesive to the abundant matrix (cloth, paper, etc.).The performance of existing abrasives is not satisfactory. The main problem is that the abrasive resistance is poor, the polishing process is prone to, and the polishing temperature is too high and easy to damage the workpiece.The above problems caused the cost of applying abrasives to be too high, affecting the processing and production of workpieces.The main factors to produce the above problems are because the preparation of milling particles is not ideal. [0003] Micro -peaks from the external hard particles or hard surfaces cause surface scratches and surface materials to fall off during the relative motion of the surface of the friction pair of friction, which are called abrasive wear.After the exis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/14
Inventor 翟建昌傅桂华梁寒冰
Owner ZIBO RIKEN MT COATED ABRASIVES
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