Calcined Alumina Powder

We have successfully developed a new generation of high-performance alumina powder that can meet the needs of ceramics, refractories and other industries, with high melting point, excellent mechanical strength, hardness, high resistivity and thermal conductivity. According to different requirements, five series of products have been formed, including dry pressing, hot die casting, refractory, casting and setting, structural ceramic granulator, etc. It can be widely used in electronic equipment, structural ceramics, refractories, wear-resistant materials, polishing materials and other industries. We strictly controls the production process and always pays attention to the product quality. Strict quality control and precise processing procedures ensure the batch consistency and stability of each specification of products to meet the requirements of different customers.

Calcined alumina oxide powder Alumina, also known as activated alumina is manufactured from aluminium hydroxide by dehydroxylating it in a way that produces a highly porous material; this material can have a surface area significantly over 200 square meters/g. The compound is used as a (to keep things dry by absorbing water from the air) and as a of , and in . It is made of (alumina; Al2O3), the same chemical substance as and (but without the impurities that give those gems their color). It has a very high surface-area-to-weight ratio. That means it has a lot of very small pores, almost like tunnels, that run throughout it The appearance is white crystal powder with uniform particle size, stable chemical property, good crystal phase stability, difficult to dissolve in acid and alkali, and has good sintering activity. Aluminum oxide can be used as raw material for preparing high purity aluminum oxide powder. Aluminum oxide can be used in long afterglow phosphors, three color phosphor, abrasive materials, transparent ceramic lamp, high-pressure sodium lamp, catalyst carrier, EP-ROM window, crystal, ruby, sapphire crystal, electronic ceramics. It is widely used in electronics, chemicals, petroleum, refractories, ceramics, glass, plastics, textiles, building materials, abrasives, paper and medicine, and many other fields.

Supplier: Abrasive, cutting wheel, silicon carbide powder, calcined alumina

The technical ceramic alumina ball with the characteristics of high density,high hardness,low abrasion,good anti-seismic stability, corrosion resistanceis which can improve the ball milling efficiency of the ball mill, reduce the pollution of glaze slurry, improve the product quality and economic benefits of the enterprise that is made of selected high-quality raw materials, advanced molding technology and calcined in high-temperature tunnel kiln at 1600 �ºC. It is an ideal grinding medium for processing glazes, billets and various mineral powders. The technical ceramic alumina ball is used in the grinding process of ceramic glaze, including the grinding process of ball mill. The semi-finished glaze slurry after grinding by ball mill is put into the mixing mill for fine processing, so that it becomes glaze. Or put the glaze powder directly into the agitation mill for fine processing to make it into glaze. We can supply 65-70% alumina content classified as medium alumina ball, 75% - 80% alumina content called medium high alumina ball, and more than 90% alumina content is high alumina ball. Among them, the high alumina ball is subdivided into 90% porcelain, 92% porcelain, 95% porcelain and 99% porcelain.

Abrasives Brown fused alumina:green silicon carbide Packing size : 25kg/bag

Allied's alumina powders are made to the highest quality specifications and are used for the final polishing of metallographic specimens. Accurately controlled purity levels and particle size distribution assure optimum polishing results. Mix with DI water to produce a liquid slurry. 0.05 particle type/shape is Gamma; 0.3 and 1.0 are Alpha. E.D.S is here to serve you, Provide you information and services for your needs.

Purity is 99.99% The 99.99% alumina powder (4 N) produces has as three different phase states α,θ and γ. The primary particle average size is 40 nm and the particle size distribution (D50) can be adjusted between 1-40 µm depending on clients's demands. Application for : Tricolor Phosphor, Long Afterglow Phosphor, YAG Phosphor, Synthetic Stone Luminous powder

1.Brown Fused Alumina is fused and crystallized under the high temperature of above 2250 degree centigrade with high quality bauxite,carbon and iron as raw material. Our product characterized by high purity,good crystal,strong fluidity,low coefficient of linear expansion,good corrosion-resistance and so on.Could not burst,no pulverization and crack in using course of refractory. 1.Place of original: HENAN 2.Material:AI2O3 3.Real Density: 3.9g/m3 4.Bulk density: 1.53-1.99g/m3 5.Melting point: 2250 6.Refractoriness:1900 7.Mohs hardness: 9.0 8.Usage: abrasive/blasting/polishing/refractory 9.Packages: 25kg PPbag, 1MT Jumbo bag, pallet, 25kg paper bag or  as customer's requirement. 10.Certificate: ISO9001, 11.Sampla: free 12.MOQ: 25ton 13.Color: Brown Supply Ability 3500 Ton/Tons per Month.

Smelting of black fused alumina powder The smelting method of black fused alumina is basically same with smelting of brown corundum. The production method of black fused alumina is choosing high-quality bauxite, iron oxide and other raw materials, add other trace elements, carefully smelting in dumping-type electric arc furnace , to ensure that the massive black fused alumina block are top grade, less impurities, ,stable quality. This laid solid foundation for producing period of black fused alumina sand , grain size black fused alumina sand and black fused alumina powder that are of moderate hardness, good toughness, good using performance and stability quality. Prices of black fused alumina powder In the abrasive products, brown fused alumina, white fused alumina, black fused alumina are same in using bauxite as main raw material, add iron scrap in high-temperature electric arc furnace smelting, and why the price of black fused alumina is lower than price of brown fused alumina and black fused alumina , The price of aluminum in the market than the price of iron per ton to be much higher, brown fused alumina sand content of more than 95%, while the black fused alumina a sand content of aluminum oxide To 85%, we can see the same level of fused alumina aluminum content is much higher than black fused alumina, and fused alumina products in the most valuable component is alumina, therefore, the price of black fused alumina is much lower than white fused alumina and brown corundum.