As the best refractory aggregate and filling material, brown fused alumina is made by fusing and purifying in a pouring electric arc furnace at a temperature of over 2200° C with high-quality bauxite, carbon material, and iron filings as the main materials. Finally a variety of particle sizes products are made by purifying, crystallization, sorting, crushing, magnetic separation and screening, washing and acid washing, etc.
Brown fused alumina have the characteristics of high purity, good crystallization, strong liquidity, low linear expansion coefficient, corrosion resistant, good self-sharpening, strong grinding force, and the characteristics of high refractoriness. Abrasives that are made of it are suitable for metals with high tensile strength, such as all kinds of general steels, malleable cast iron, hard bronze, etc. Brown fused alumina used for refractory will not initiate, pulverize, and crack in the process of application. Notably, its cost performance is considerably higher than traditional corundum.
YiChuanCounty ShengYu Fireproof Material Co., Ltd. is one of the specialized manufacturers of brown fused alumina. The specification of brown aluminum oxide that is used for refractory can divide into 0-1mm, 1-3mm, 3-5mm, 5-8mm, 0-200mm as well as other sizes are available as required. Products are widely used and have a high quality with a low price. For instance, brown corundum section sand 5-8mm can be used for refractory material, sandblasting, precision casting, and so on. For the purpose of striving for excellence, shaping high-quality goods, keeping improvement, and meeting customer demand, in May 2001 Shengyu was rated as an AA credit enterprise by Henan credit rating Co., LTD. What’s more, Shengyu is also the supplier for Catic Beijing Co., LTD in Henan Province.
With high performance and importance, brown fused alumina has a certain scale of demand both domestically and overseas. There is no doubt that it has a broad application prospect. According to Chinese customs statistics, China exported a total of 63,119 tons of brown fused alumina in June, which increased by 52% compared with the same period last year. In the first half of 2014 China exported 203,335 tons of corundum, which increased by 51.3% compared with the first half of 2013. Only Shengyu’s annual production capacity reached 4000 tons, and their products are exported to Australia, Germany, France, Britain, the Netherlands, the United States, Japan, South Korea, Thailand, Romania, and Russia. From what we talked about above, we can draw a conclusion that brown fused alumina has bright prospects in the days ahead.