Ceramic corundum grinding material containing complex-phase additive system

Abstract

The invention discloses a ceramic corundum grinding material containing a complex-phase additive system, which comprises the following components in parts by weight: 20-30 parts of vein quartz, 10-19 parts of boric acid, 30-45 parts of feldspar, 15-30 parts of gypsum, 10-19 parts of sandstone, 35-46 parts of copper nitrate, 5-14 parts of wollastonite, 29-40 parts of barium nitrate, 5-11 parts of bagasse, 3-8 parts of Baonao powder, 15-39 parts of trumpet shell powder, 35-39 parts of aluminum nitrate, 30-50 parts of ethyl orthosilicate and 15-20 parts of barium hydroxide octahydrate. The corundum grinding material has the advantages of wider additive selection range, wide additive sources, higher single-granule compression strength and higher impact toughness, and the sintering temperature of the corundum grinding material can be effectively lowered, thereby lowering the production cost, reducing the energy consumption and further optimizing the interior microstructure.

Description

technical field [0001] The invention relates to a ceramic corundum abrasive containing a complex additive system. Background technique [0002] Ceramic corundum abrasive (ie SG abrasive) is a high-purity corundum abrasive with fine crystal structure and composition prepared by sol-gel method. Compared with ordinary fused corundum abrasives, it not only has high hardness, but also because the abrasive grains have a microcrystalline structure, there are many cleavage surfaces that only microcrystalline fall off under the action of external force, and new cutting edges are continuously generated, with good self-sharpening properties. And less peeling; abrasive tools prepared with ceramic corundum abrasives have the advantages of good wear resistance, less grinding heat, long service life, large grinding ratio, high removal rate and good grinding quality. At the same time, the price is far lower than that of abrasive tools made of superhard materials such as cubic boron nitride...

AI Technical Summary

Problems solved by technology

[0003] Although ceramic corundum abrasives have many advantages and broad application prospects, due to the high melting point (2050°C) of pure alumina, it is difficult to sinter at low temperatures during the preparation process, and excessively high temperatures can easily cause abnormal grain growth and damage performance.