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Black Aluminum Oxide Abrasive 70 Grit Indonesia

When using black fused alumina, users are prone to chalking and bursting, which reduces its performance. At the same time, because its production method uses electric furnace melting and reduction, it consumes a large amount of electricity (electricity consumption accounts for about 50% of its cost).


Black Aluminum Oxide Abrasive 70 Grit Indonesia MOQ: 1 Ton! 19 Years Experience Black Aluminum Oxide Abrasive Supplier, 35,000m² Workshop Area, Free Samples, Fast Delivery!


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Facing the strong pressure of energy saving and emission reduction, the market urgently needs a new material to replace brown fused alumina. The brown corundum produced does not contain carbon residues, has low cost, and has excellent performance. Brown corundum, also commonly known as emery, white fused alumina suppliers is tan in color and is widely used in the manufacture of advanced refractory materials, ceramics, abrasives, castings and other industries.


At present, the commonly used production method of brown fused alumina price is to adopt the electric melting method, that is, three kinds of raw materials such as alumina, carbon, and iron chips are melted and reduced in an electric furnace (brown corundum produced is called electrofused silicon carbide price), Because carbon is added in the production process, the residual carbon content in the finished product is about 0.5%.


In order to achieve the above purpose, the following technical scheme needs to be adopted: a production process of sintered brown aluminum oxide, including the following steps: 50-60% alumina and 40-50% bauxite raw ore are added to the container in order by weight percentage, and then added It accounts for 30 to 40% of water, 0.2 to 0.5% of polymerized AlCl3, 0.1 to 0.3% of lignocellulose, and then sealed and ground to obtain a slurry; the white fused alumina manufacturer slurry is dehydrated, shaped, dried, and calcined to obtain a sintered brown Corundum.


The white alumina content of Al2O3 in the bauxite raw ore is ≥75%. The container is a wet ball mill. The sealing grinding time is 8 to 10h. The steps of dehydration, shaping and drying are: pumping the mud into a mud filter to dewater ((5 to 15min) to obtain mud cakes; extruding and cutting the mud cakes through a vacuum squeezer (vacuity 0.07 to 0.2Mpa) The green carborundum slime is obtained; the slime is sent to a drying kiln for drying (100-200 ° C drying for 8-12 hours).


The calcination is calcination in a tunnel kiln at 1600-1700 ° C for 3-5 hours. The production method of the above-mentioned sintered brown aluminium oxide preferably includes the following steps: 50 to 60% alumina and 40 to 50% bauxite raw ore are added to the wet ball mill in order by weight percentage, and 30 to 40 is added to the weight of the two. % Water, 0.3 to 0.5% polymerized AlCl3, 0.1 to 0.3% lignocellulose, brown fused alumina manufacturer and then sealed and ground for 8 to 10 hours to obtain a slurry.


Our company provides a new process for sintering pink aluminum oxide. The slurry was pumped into a filter press for dehydration for 5 to 15 minutes to obtain a mud cake. The vacuum extruder with a vacuum degree of 0.07 to 0.2Mpa extrudes and cuts the mud. The mud is sent to a drying kiln and dried at 100 to 200 ° C for 8 to 12 hours, and then calcined in a tunnel kiln at 1600 to 1700 ° C. 3 to 5 hours to obtain sintered silicon carbide companies.


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Brown Fused Alumina And White Fused Alumina MOQ: 1 Ton! 19 Years Manufacturing Exprience, 35,000m² Workshop Area, Factory Price, Free Samples, Fast Delivery!

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