White aluminium oxide(WA)abrasives,white fused alumina
Product Description:
White Fused AluminaWhite fused alumina, a kind of high-grade refractories, was made from the imported high quality alumina by melting above 2 000 in the electric arc furnace and cooling. It is white with the main crystal phase αAl2O3. The white alumina produced in the titling electric arc furnace has the advantage of high bulk density and low porosity and the volume stability and thermal shock resistance can be improved.Application fieldAs refractoriesWhite fused alumina is the main starting material to produce high-grade unshaped and shaped refractories and is widely-used in the field of iron-steel industry, cement industry, ceramics, Petrochemical industry, etc. It is the ideal raw material to produce the unshaped refractors such as large ladle castables, medium and high grade BF trough castables, gunning material, pre-cast shapes and is the main raw material to produce alumina products such as corundum bricks, corundum and mullite-corundum sagger, refined porous plug bricks, monolithic lance & composite nozzle, lining material for high-temperature industrial furnaces, etc. As abrasivesWhite fused alumina can be used as consolidation & coating abrasives, wet or dry sprayed grit, suitable for the ultra-precise grinding & polishing in the crystal and electronic industry and can be used to produce high-grade refractories. It is suitable to machine high stiffness and high tensile strength materials such as chilled steel, alloyed steel, high-speed steel, high carbon steel, etc. In addition, it can be used as catalyst, insulator, precise foundry sand, etc.Table 1Chemical compositionsGritTypical valueFine powderTypical valueAl2O3≥9999.59999SiO2≤0.10.050.150.08Fe2O3≤0.10.060.150.06K2O+ Na2O≤0.40.30.450.35Apparent porosity86 Bulk density3.603.62 True density3.923.923.923.93 Zhengzhou Yufa Abrasives(Group)Co.,Ltd Zhengzhou Yufa Abrasives (Group) Co., Ltd. comprises ofsubsidiary companies such as Yufa Abrasives, Yufa Refractories, YufaSpecial Ceramics and Yufa Industrial Company. Yufa Group, founded in 1987, is entitled as High-tech Enterprises in Henan, The AAA Credit Rating Enterprise andThe Quality Credible Enterprise and has passed ISO9001 QualityManagement System Attestation . Yufa New Material R&D Center established with Shanghai Institute of Ceramics Chinese Academy of Sciences is entitled asHenan Province Enterprise R&D Centre.As the largest white fused alumina producer in china,the main products are: white white fused alumina (won The Famous National Products in the Abrasives Industry),dense corundum,fused zirconia mullite,semi-friable corundum, Mg-Al spinel, fused mullite and α- Al2O3 ete ., which are sold well to over 40 countries and regions and enjoy good fame in abrasives,refractories and ceramics industries.
About Us
WELCOME TO ZHENGZHOU YUFA ABRASIVES CO.LTD.Zhengzhou Yufa Abrasives Group Co., Ltd--The Largest White Fused Alumina Manufacturer in China-- is one of the world's leading producers of abrasives and refractories, offering an exceptionally wide line of high quality abrasive and refractory raw materials supported by outstanding engineering and technical service.Founded in 1987, Yufa Abrasives has been entitled as "High-tech Enterprises in Henan", "AAA Credit Rating Enterprise" and "Quality Credible Enterprise". We have passed ISO9001 Quality Management System Attestation. More than 50 experts continuously work on product innovations and developments in close cooperation with universities and other research institutions. Presently, we mainly offer: White Fused Alumina, Yellow Fused Alumina, Dense Corundum, Fused Mg-Al Spinel, Fused Mullite, Calcined Alumina( Alpha Alumina), Reactive/Activated Alumina, etc. which are extremely popular in over 40 countries and regions. Our aim is to add value to the process of our customers by achieving the best price/performance ration with our raw materials. The world has changed and is changing, why not change with it? Let's work together to find solutions for tomorrow.
