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Product Details

Specifications

Characteristics: moderate hardness, high toughness, high temperature resistance, and stable thermal stability.

Black Fused Alumina

Black fused alumina is also known as low aluminum corundum. It is also a new type of product on the based of producing brown fused alumina by Ruishi Company. And it is a dark gray crystal body made α Al2O3 and ferropicotite as main ore in the electric arc furnace by smelting the bauxite.
Black fused alumina is characterized by low Al2O3 and a certain amount of Fe2O3 (10% more or less) content, so it has characteristics of moderate hardness, high toughness, high temperature resistance, and stable thermal stability. It is mainly suitable for free grinding, such as coarse grinding before electroplating products, mainly for polishing and sandblasting of stainless steel, fabricated metal products, optical glass, bamboo products, and it is also new abrasive for manufacturing resin grinding wheels, cut−off wheels and emery cloth. The black fused alumina of the company concentrated basic tablets, with the characteristics of strong cutting power, high toughness, high flexibility, good abrasion resistance and high working efficiency, which is the best product for grinding and polishing, sandblasting stainless steel products.

Specification	Chemical composition(%)
Specification	Al2O3	Fe2O3	SiO2
BA—Ⅱ	68—72	10—12	≤10

Company Information

Products : ( composite fused alumina, brown fused alumina, white fused alumina, black fused alumina, zirconia fused alumina, compact fused alumina ) Fused Alumina, fused mullite, fused magnesium aluminum spinel, silicon carbide powder, metallurgical material (calcium alumina, desulfurizer, deoxidizer, covering flux, slag−iron separation agent, slag−steel separation agent.)

Henan Ruishi Investment Group Co., Ltd., formerly known as Yichuan Ruishi Abrasives Co., Ltd., was founded in 1992. The company mainly produces all kinds of abrasives, special refractories and metallurgical materials. After nearly 20 years of rapid development, the company has developed into a stock−holding company with seven wholly−owned subsidiaries, including a bauxite calcination plant, a smelter plant, a sand−making plant, a new energy solar−powered wire cutting plant, a renewable resource company, and an international trading company. The company has the rights for import and export; it is also one of the top−100 export bases in Henan Province. The production base of the group covers an area of 440 mu. It has 350 employees, and a registered capital of 72 million yuan; it is equipped with six domestic first−class large−scale 3600KVA/360KVA high−temperature furnaces, and six automatic Barmac production lines; in order to ensure the stability of raw materials, the company built 4 shaft kilns, to be dedicated to firing first−grade alumina blocks used for smelting, which has an annual production capacity of up to 150,000 tons. The new−type energy−saving composite corundum developed by the company has a production capacity that ranks first in the industry worldwide. The products took the lead in the industry in passing the ISO9001: 2000 Quality Management System certification, which are exported to more than 20 countries and regions, including the United States, Russia, Japan, and Korea. In 2010, the total assets of the Group reached 159.09 million yuan; the sales income was up to 256.33 million yuan, and the taxes amounted to 24.93 million yuan, having created good social and economic benefits and made outstanding contributions to the society.