Brown fused alumina is one of the most basic of abrasive, its crushing resistance, oxidation resistance, corrosion resistance, good chemical stability. In our country, brown fused alumina production technology mature, our country at present there are fixed furnace smelting methods frit method and dumping furnace smelting method), the production cost is lower than other abrasive, cost performance is better than other abrasive. After 60 years of development, therefore, brown corundum has gradually formed a certain scale industrial system of industrial materials, become irreplaceable basic material industry development in our country in the national economy indispensable important component, at present in the consolidation of the abrasive abrasive, painting occupies an important place in the manufacturing and refractory materials production.
With the rapid development of China's machinery manufacturing and structural adjustment, abrasive industry are increasingly demanding in the quality of brown fused alumina products, abrasive production enterprises have continuously groped tentative experiments, to find a feasible treatment method to improve the quality of brown fused alumina products. At present, the processing technology to improve the quality of brown fused alumina abrasive products mainly include: improving the abrasive particle shape, heat treatment, or three chemical coating. Only improve the particle shape to improve abrasive performance far cannot reach the technical requirements of grinding tool, and chemical treatment also there is a high cost, polluting the environment of weakness, so heat treatment was carried out on the brown corundum abrasives has become the main method to improve the quality of abrasive, widely attention.
Brown fused alumina calcination, as a kind of heat treatment of abrasive, production use abroad for twenty years, and production in our country to use more than a decade. Yichuan county east abrasives co., LTD., lucky as one of the earliest implementation of calcined corundum abrasive production manufacturer.
