Compression-resisting and heat-resisting ceramic corundum abrasive material

Abstract

The invention discloses a compression-resisting and heat-resisting ceramic corundum abrasive material. The compression-resisting and heat resisting ceramic corundum abrasive material is characterized by comprising the following matters of, by weight, 11-30 parts of titanium oxide, 5-15 parts of kyanite, 2-17 parts of calcium carbonate, 11-27 parts of aluminum hydroxide, 25-40 parts of corundum powder, 15-20 parts of sodium borate, 1-9 parts of barium carbonate, 15-30 parts of rutile-type titanium dioxide, 11-19 parts of silica gel, 21-40 parts of montmorillonite, 1-8 parts of siliceous lime, 15-42 parts of silicon carbide, 11-20 parts of strontium oxide and 10-34 parts of trumpet shell powder. According to the compression-resisting and heat-resisting ceramic corundum abrasive material, the size of crystalline grains can be effectively controlled according to changes of sintering temperature so as to meet the requirements for corundum abrasive materials in different grain sizes in practical application; compared with the prior art, the compression resistance of a single grain of the corundum abrasive material is improved and meanwhile, the internal microstructure is further optimized.

Description

technical field [0001] The invention relates to a pressure-resistant and heat-resistant ceramic corundum abrasive. Background technique [0002] Abrasives play an irreplaceable role in industrial applications. With the continuous advancement of industry and science and technology, the scope of use of abrasives is increasing, and the performance requirements for them are gradually increasing. The ceramic corundum abrasive is prepared by the sol-gel method, so the abrasive can achieve uniformity in chemical composition, and at the same time, the sintering process replaces the melting preparation process, making the abrasive a ceramic polycrystalline sintered body. It can greatly improve the hardness and toughness of the abrasive. The ceramic corundum abrasive prepared by the wet chemical method of sol-gel is superior to the traditional fused corundum abrasive in many aspects such as microstructure, grinding performance and toughness; when it is prepared into an abrasive tool,...

AI Technical Summary

Problems solved by technology

[0003] However, due to the high sintering diffusion activation energy of pure alumina, it is difficult to sinter at low temperature, and excessively high temperature will easily cause abnormal growth of grains, increase porosity, destroy the uniformity and compactness of its microstructure, and then damage its performance. , Therefore, how to improve the performance of its microstructure through optimization has always been an important part of the research on ceramic corundum abrasives