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Special Design for Aluminum Oxide Grit - High hardness refractory Brown Fused Alumina – Junda

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Special Design for Aluminum Oxide Grit - High hardness refractory Brown Fused Alumina – Junda Detail:

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Brown fused alumina bauxite as raw material, coal, iron, high temperature above 2000 degrees hitches in arc smelting, the mill grinding plastic, magnetic separation to iron, screen is divided into a variety of particle size, dense texture, high hardness, particle formed globular, high consolidation is suitable for making ceramic, resin abrasive and grinding, polishing, sandblasting, casting, etc., can also be used for manufacturing advanced refractories.

Brown corundum its main functions:
1. Because of its high strength and other properties, it is used to cast steel sliding nozzle, smelting rare metals, special alloys, ceramics, blast furnace lining (wall and pipe); Physical and chemical ware, spark plug, heat – resistant oxidation – resistant coating.
2. Because of the characteristics of hardness, good sex, high strength, in the chemical system, used as a variety of reaction vessels and pipes, chemical pump parts; Do mechanical parts, all kinds of molds, such as wire drawing mold, squeeze pencil core mold mouth, etc.; Do tools, mold abrasives, bullet-proof materials, human joints, sealing ring and so on.
3. Corundum insulation materials, such as corundum light brick, corundum hollow ball and fiber products, used in a variety of high temperature furnace wall and top, both heat preservation. Emery particle size sand is made of artificial emery block, using roller, ball grinding, barmark and other equipment processing, particle size by F8-F325. Mainly used for polishing, grinding, industrial grinding, etc., can also be washed according to customer requirements, pickling and other processing, to meet the different needs of customers.

Low carbon brown corundum after furnace and special process of reprocessing, reduce the content of residual carbon in brown corundum, so that the product in use is not pulverized, not burst, toughness is abrasives industry, refractory industry raw materials. Mainly used for ceramic abrades, abrades, organic abrades, belts, coated abrades, etc., according to the residual carbon content is divided into: calcined brown corundum C ≤0.05%, low carbon brown corundum C ≤0.10%, ordinary brown corundum C ≤0.15%.

Technical Parameters

Product name Models Leading indicator Density Appearance Hardness(mohs) Micro hardness Melting point(ºC) Max temperature(ºC) Bulk density(g/cm3) Application Size Abrasive Grain Sizes
Brown fused alumina AL2O3 Fe2O3 SiO2
A+ ≥95 ≤0.3 ≤0.5 3.85g/cm3 Brownish red particle ≥9.0 HV2200-2300 2250 1900 1.75-1.95g/cm3 Refractory materials, fine casting 16#-325# or According Customer Required F12-F1200, 0-1mm, 1-3mm, 3-5mm, 5-8mm, 8-12mm
A ≥90 ≤0.3 ≤0.5 Black granular gray powdery Polish, grind
B+ ≥85 ≤0.3 ≤0.5 Black granular gray powdery Grinding, grinding wheel, cutting pieces, sandblasting
B ≥80 ≤0.3 ≤0.5 Black granular gray powdery Polish, grind
C ≥70 ≤0.3 ≤0.5 Black granular gray powdery epoxy

Product detail pictures:

Special Design for Aluminum Oxide Grit - High hardness refractory Brown Fused Alumina – Junda detail pictures

Special Design for Aluminum Oxide Grit - High hardness refractory Brown Fused Alumina – Junda detail pictures

Special Design for Aluminum Oxide Grit - High hardness refractory Brown Fused Alumina – Junda detail pictures

Special Design for Aluminum Oxide Grit - High hardness refractory Brown Fused Alumina – Junda detail pictures

Special Design for Aluminum Oxide Grit - High hardness refractory Brown Fused Alumina – Junda detail pictures

Special Design for Aluminum Oxide Grit - High hardness refractory Brown Fused Alumina – Junda detail pictures


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With a positive and progressive attitude to customer's interest, our enterprise continually improves our products excellent to meet the wants of customers and further focuses on safety, reliability, environmental requirements, and innovation of Special Design for Aluminum Oxide Grit - High hardness refractory Brown Fused Alumina – Junda , The product will supply to all over the world, such as: Jeddah, Paraguay, Costa Rica, We have a good reputation for stable quality products, well received by customers at home and abroad. Our company would be guided by the idea of Standing in Domestic Markets, Walking into International Markets. We sincerely hope that we could do business with car manufacturers, auto part buyers and the majority of colleagues both at home and abroad. We expect sincere cooperation and common development!
  • The supplier abide the theory of quality the basic, trust the first and management the advanced so that they can ensure a reliable product quality and stable customers.
    5 Stars By John biddlestone from Macedonia - 2017.12.31 14:53
    This is a very professional wholesaler, we always come to their company for procurement, good quality and cheap.
    5 Stars By Hannah from Sydney - 2017.03.08 14:45
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