Ceramic abrasive is a new type of abrasive with microcrystalline structure obtained by gel sintering. It does not use smelting method. Most of them use Al203 or SiC below 5 μm. In the presence of acid, add some oxides to produce gel. made into granules. The raw material requirements are strict, and the sodium oxide content is less than 5%.
Characteristics of Ceramic Abrasives:
It is characterized by no smelting; the crystallization is within 3 μm. The ceramic abrasive is hard and tough, and the refined crystal shape can make the abrasive fall off regularly in layers, make self-sharpening orderly, keep the whole abrasive grain sharp, and have good processing effect. Working conditions are equally important, temperature is important, and pressure is more important, so that the crystals are destroyed one by one to achieve the purpose of self-sharpening. It is first used to coat abrasives, which is 3-5 times higher than ordinary corundum (ordinary 100, zirconium corundum 207, ceramic abrasive 333).
Properties of Ceramic Abrasives:
Ceramic abrasives can be processed into balls, columns, sands, edges and other shapes. The micro-powder flake mullite balls formed by scientific processing with advanced technology have high aluminum content, very little glass phase, and 90% mullite phase above. Therefore, the Mohs hardness is high, the specific gravity is large, the surface is smooth, the wear is small, the crystallization is good, the elasticity is large, and the ball milling efficiency is high.
Zirconia grinding ceramic balls have the advantages of high density, high strength, good toughness, wear resistance, good corrosion resistance, small thermal expansion coefficient, high grinding efficiency, low noise, long service life, and no contamination of materials. It is a high-quality grinding medium suitable for various grinding machines.
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Classification of Ceramic Abrasives:
◆ Traditional ceramic abrasives made of Al203, SiC and zirconium corundum
◆ SG type of new ceramic abrasive
