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High purity White Corundum/White fused alumina as Abrasives Material

Categories Material & Abrasive
Brand Name: HT
Model Number: hongtai
Certification: ISO9001
Place of Origin: henan,China
MOQ: 1 Ton/Tons
Price: US $400-700 / Tons
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 3000 Ton/Tons per Month
Delivery Time: 25-30 days
Packaging Details: 25kg/50kg a bag ,or according your requirement Packing with Kraft paper bag with liner; Packing with Bowie with liner; Palletized when loading in container
Al2O3 Content (%): 99%
SiO2 Content (%): 0.05%
Grain Density(kg/m3): 3.9
Raw material: Al2O3
Shape: Powder
Fe2O3: 0.03-0.04%
Bulk Density(kg/m3): 1.9-2.5
Size: Customers' Requirement
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    High purity White Corundum/White fused alumina as Abrasives Material

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    Product Description

    The fused white corundum is made of industrial alumina or calcined alumina as raw material and melted at high temperature in an electric arc furnace. It is an important raw material for making high-grade refractory materials, and is also widely used in the abrasive industry.

    The fused white corundum • Instructions for use

    The fused white corundum is made of high-quality alumina powder and is electrolyzed and refined. Its hardness is slightly higher than that of brown corundum. It has slightly lower toughness, high purity, good self-sharpness, strong grinding force and low calorific value. High efficiency, acid and alkali corrosion resistance, high temperature resistance and good thermal stability. It is used to make abrasive tools, which are suitable for cutting carbon, high speed and just high. It can also be used as grinding, polishing materials, precision casting, spray materials, chemical catalyst carriers, special ceramics, advanced refractories, etc.

    Electrofusion white corundum • production process

    The fused white corundum is a medium-to-high-grade refractory raw material with white color and dazzling appearance. The white corundum has the advantages of large bulk density and low porosity, which can effectively improve the volume stability and thermal shock resistance of the material. The fused white corundum is the main raw material for the production of high-grade indefinite and shaped refractory materials. It is used for large-scale ladle castables, medium and high-grade iron trench castables, spray materials, prefabricated parts and other amorphous refractories and corundum bricks, corundum and Mullite corundum body, refining corundum porous plug brick, integral spray gun and composite nozzle, high temperature industrial kiln lining and other corundum products. Widely used in steel, cement, ceramics, abrasives, petrochemical and other industries.

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    Technology

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    How is fused white corundum abrasive used for refractory materials?

    The white corundum brick is made of imported plate-shaped corundum and high-purity fused corundum as the main raw material. It is applied with advanced ultra-fine powder adding technology. After mixing, molding and drying, it is fired at high temperature in the shuttle kiln. The product has the characteristics of high refractoriness, good thermal shock resistance of white corundum, high temperature strength, excellent corrosion resistance, strong slag resistance, small expansion coefficient, low creep and anti-flaking, and is suitable for various atmospheric conditions. Used in high temperature furnaces; widely used in zirconia ceramics, fluorescent materials, electronic ceramics, magnetic materials.

    High-temperature sintering of ceramic powder and petrochemical industry gasifier, synthetic ammonia two-stage reformer, carbon black reaction furnace and glass industry high-temperature kiln and other equipment. White corundum is made of high-quality aluminum oxide powder. White corundum is obtained by electro-melting and refining. It has high purity, good self-sharpness, acid and alkali corrosion resistance, high temperature resistance and stable thermal performance. White corundum hardness is slightly higher than brown corundum, slightly lower toughness, high purity, good self-sharpness, strong grinding ability, low calorific value, high efficiency, acid and alkali corrosion resistance, high temperature resistance and good thermal stability. Grinding tools made of white corundum granular sand are suitable for grinding fine-grained abrasives such as high carbon steel, high speed steel and stainless steel. White corundum can also be used for precision casting and advanced refractory materials.

    What is the white corundum grinding head? Grinding head is a general term for small-sized grinding tools with handles. It is used in electric grinders, hanging grinders and hand drills. Many types include ceramic grinding heads, rubber grinding heads, diamond grinding heads, and abrasive cloth grinding heads. White corundum granular sand (generally brown fused alumina, white steel jade, chrome corundum, silicon carbide) is sintered from a ceramic bond with a metal handle in the center. Mainly grinding various metals for grinding the inner wall of the hole and correcting the mold. Rubber grinding head: The finer-grained sand is combined with a rubber binder, and the white corundum is used for the polishing of the mold.

    A plurality of rectangular abrasive cloth sheets are bonded around the metal handle. The particle size is generally 60#-320#, used for polishing the inner wall of the aperture, a grinding tool for non-metallic materials such as stone and white fused alumina, especially for a grinding tool with diamond alloy as the grinding body. Corundum, which comprises a base body and a plurality of grinding bodies, wherein a plurality of grinding bodies are fixed in the base body in a gap, and the grinding body is also arranged in a gap on the grinding surface of the grinding head, wherein the base body is preferably made of a certain toughness. The joint material is made of a diamond alloy material, and the utility model has the characteristics of high grinding performance, simple manufacture and low cost, high grinding processing quality and can be applied to large-scale grinding processing.

    The white corundum is made of industrial alumina powder as raw material, and is smelted in an electric arc at a high temperature of 2000 degrees or more and then cooled. After pulverization and shaping, magnetic separation and de-ironing, the sieve is divided into various particle sizes, and the texture is dense, the hardness is high, and the granules form sharp corners. It is suitable for the manufacture of ceramics, resin-bonded abrasives, as well as grinding, polishing, sandblasting, precision casting (special corundum for precision casting), etc. It can also be used to manufacture advanced refractory materials, codenamed "WA" in international white fused alumina standard, country The standards are the same, most are for export, and there is also a certain amount of supply to domestic users. The product size is produced according to international standards and national standards, and can be processed according to the user's required particle size. The general particle size number is F4~F320, and its chemical composition varies depending on the particle size. The outstanding feature is that the crystal size is small and impact resistant. If it is broken by the self-grinding machine, the particles are mostly spherical particles, the surface is dry and easy to combine with the binder.

    White corundum is the most economical abrasive for both dry and wet production processes. White corundum is especially suitable for the treatment of rougher workpiece surfaces, while the treated surfaces require finer surfaces. This sharp, angular synthetic material is second only to diamond in hardness and is often used where iron contamination is critical. It can cut very hard materials or be spherical to process extremely precise workpieces to achieve extremely low roughness. Its high density, sharp, angular structure makes it the fastest cutting abrasive. White corundum is manufactured by electrofusion of high quality aluminate (aluminum oxide powder) for the production of powdered corundum and white corundum.

    Its natural crystal structure makes it high in hardness and fast in cutting performance. At the same time they are often used as raw materials for bonded abrasives and coated abrasives. White corundum can be recycled in standard blasting equipment. The number of recycling times and material grades and specific process related to white corundum sand are applicable to industrial scope: aerospace industry, automotive industry, foundry industry, semiconductor industry, etc. Applicable process range: surface plating, Pre-treatment before painting, glazing and PTFE coating; deburring of aluminum and alloy products, descaling; mold cleaning; pre-treatment before metal blasting; dry and wet grinding; precision optical refraction; , metal, glass white corundum and crystal grinding; glass engraving and paint additives. Directions for use: White fused alumina is used for dry or wet blasting equipment using compressed air. White corundum has a very high hardness and wears out quickly on poor quality equipment. It is best not to use tungsten carbide spray guns when using white corundum. Boron or silicon carbide spray guns should be used.


    Packaging & Shipping

    Packaging of diatomaceous bricks

    1.on wooden pallets with plastic cover: wooden pallet size :930*930 or 1000*1000mm,
    2.Load weight of each pallet: 1.5-2.0 tons,
    3.230*114*65mm:512PCS/Pallet, 230*114*75mm:448PCS/Pallet.

    Shipping of diatomaceous bricks

    1.Our packaging is as per customer’s request
    2.Normal goods delivered by sea transport
    3.Sample shipping by express
    4.We will shipping and delivery goods timely, quanlity and quantity guaranteed, and also in accordance with the contract and customer's requirment completely.

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    Why choose Us

    Henan hongtai kiln refractory co., LTD. Is well aware that there are thousands of demands from customers, which can be summarized in four aspects: reliable quality, timely delivery, reasonable price and considerate service.The company will continue to adhere to the corporate spirit of "contributing to society and serving customers" and the business philosophy of "mutual benefit, win-win, integrity, efficiency, preciseness and responsibility".Our company is willing to develop a wide range of technical exchanges with colleges and universities and colleagues from all walks of life at home and abroad in a flexible and diversified way.

    Henan hongtai kiln refractory co., LTD. Main products are high alumina brick, clay brick, fused zirconium corundum brick, fireproof ball lightweight insulation brick, wear-resistant pouring material, corundum pouring material, low cement high strength pouring material, impermeable material, self-flowing material, plastic material, and various types of refractory materials.For different industries, the cement industry with anti-flaking high-alumina bricks, alkali resistant bricks, phosphate bricks;Boiler industry USES all kinds of brand wear-resisting brick, corundum brick, mullite brick and other finalizing materials.The company insists on "product quality is the life, enterprise integrity is the foundation", in the fierce market competition, won many users' trust and praise.The products are sold all over the country, as far as Vietnam, India, Korea, Pakistan, kazakhstan, Iran and other southeast Asian countries and regions.

    Henan hongtai kiln refractory co., LTD. : "quality first, reputation first, customer first: it is our aim."Scientific management, strong technical force, perfect testing means, advanced technological equipment and stable product quality are the guarantee of quality service.Henan hongtai kiln refractories co., LTD sincerely hopes to cooperate with you hand in hand and in good faith.


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