This kind of white fused alumina electrically fused in arc furnace with high grade processed alumina as raw material. It has higher hardness and slight lower toughness comparing with brown fused alumina. It is also characterized by its high purity, ability of self-sharpening, better cutting, less heat emit, higher efficiency, acid and alkali resistance, good thermal stability. As the abrasive materials, it is suitable for grinding high-speed, high carbon steel, as loose grains, it widely used for bonded and coated abrasives, polishing, precision casting and so on.
Henan Ruishi Investment Group Co., Ltd. (short for Ruishi Group), formerly known as the Henan Yichuan Ruishi Abrasive Co., Ltd., founded in 1992, mainly produces all kinds of abrasive materials, special refractory materials and metallurgical accessories. After nearly 20 years of rapid development, Ruishi Group develops into a corporate enterprises including 7 wholly-owned subsidiaries such as bauxite calcination plant, smelting plant, sand plant, new energy plant, solar line cutting plant, renewable resources company and international trade company. Ruishi Group, with self-import and export rights, is one of the 100 largest export bases in Henan Province, which covers an area of 300 thousand square meters and has 350 employees. Ruishi Group has 6 sets of China first-class large-scale production equipment 3 600 kVA/360 kVA high temperature smelting furnaces and 6 automatic Barmac production lines. To ensure the material stability, Ruishi Group build 4 sets of the shaft kilns, producing high quality bauxite blocks for its own. Ruishi Group passes the ISO9001: 2000 International Quality System Certification, and its products are exported more than 20 countries and regions such as the United States, Russia, Japan and South Korea.
