High Purity Aluminum Oxide/ Aluminium Oxide/ Alumina Oxide Al2O3

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Tianjin
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25 m.t.
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30000 m.t./month

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Product Description:

High Purity Aluminum Oxide/ Aluminium Oxide/Alumina Oxide Al2O3


Specification:

1.    High Purity Alumina Powder manufacturer 

2.    99.995% purity 

3.    Four types: powder,ball,pellet and crystal

 

Application:

1. aluminium oxide for aluminium smelting, glass, ceramic industry etc.

2. aluminium oxide for refractory, coating, abrasive applications.

3. aluminium oxide for electric basal plate, desiccating agent, chemical and pharmacy industry, etc.

 

aluminum oxide property:

It has higher hardness and slight lower toughness comparing with brown fused alumina. It is also characterized by its high purity, ability of self-sharpening, better cutting, less heat emit, higher efficiency, acid and alkali resistance, good thermal stability. As the abrasive materials, it is suitable for grinding high-speed, high carbon steel, as loose grains, it widely used for bonded and coated abrasives , polishing, precision casting and so on .

white fused alumina grits&powder chemical composition

 

aluminum oxide property:

Soluble in water white solid. Odourless. Tasteless. Qualitative very hard. Easy absorption of moisture and not ChaoXie. Both sexes oxide, soluble in inorganic acid and alkaline solution, almost insoluble in water and the polar organic solvents. The relative density (d204) 4.0. Melting point about 2000 °C.

 

The physical and chemical analysis:

 

 High Purity Aluminum Oxide/ Aluminium Oxide/ Alumina Oxide Al2O3

 

Main standard:

Alumina(industry grade) made by slkali-lime sintered,It is white powdered crystal with low assay of Ti, Mn, Zn, Cu, V, Zr, Cr, Li, Pb, B, P, etc.It is used in the production of fused salt eletrorefining aluminium, corundum eramics, refractories and other alumina chemical products.

 

Product Pictures:

 

High Purity Aluminum Oxide/ Aluminium Oxide/ Alumina Oxide Al2O3High Purity Aluminum Oxide/ Aluminium Oxide/ Alumina Oxide Al2O3

High Purity Aluminum Oxide/ Aluminium Oxide/ Alumina Oxide Al2O3

High Purity Aluminum Oxide/ Aluminium Oxide/ Alumina Oxide Al2O3

High Purity Aluminum Oxide/ Aluminium Oxide/ Alumina Oxide Al2O3


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Q:What defect does fused cast refractories have ?
The impact on the quality of glass is mainly the defects that eroded down refractory materials mixed in the glass, thus being prodeced of grass products. Defects are mainly foreign body defects such as sand, knot and wave reinforcement.
Q:What's the A class fireproof and thermal inuslation matertial for external wall?
It is roughly divided into thermal insulation mortar, phenolic foam board, rock wool board, foamed cement board, etc. Insulation mortar is quite good for its simple construction, convenience and low cost, but its production is too simple to make fake products easily. If you want to use the material, it is suggested to find a large plant with complete procedures such as provincal records of production and use, city records, test report above provincial levels, national fire inspection report, design drawings sheets of Department of Construction, etc. If there is lack of any one, it is unsafe. Hope my answer is helpful for you.
Q:what are the types of piping insulation material fire rating?
according to China's national standard GB8624-97, the combustion performance of construction materials can be divided into several grades grade A: Incombustible building material: Almost no burning material. Class B1: nonflammable building material: nonflammable material has a good flame resistance effect. when it meet the open fire in the air or burnd at high temperature, it is difficult to spread quickly, and when the fire source is removed, the combustion stop immediately. Class B2: flammable building material: flammable material has a good flame resistance effect. when it meets open fire in the air or at high temperature, it will immediately burst into flames and easily cause fire spread, such as wooden column, timber roof truss, timber beam, and wooden stairs,ect.. Class B3: inflammable building material: No flame resisting effects, highly flammable, high fire risk. 2, external wall thermal insulation materials, in accordance with fire rating, can be divided into1) grade A combustion performance thermal insulation material: Rock wool, glass wool, foam glass, foamed ceramics, foam cement, hole-closed perlite ect.. 2) class B1 combustion performance insulation materials: Extruded polystyrene board (XPS) after special treatment / Special treatment of polyurethane (PU), phenolic aldehyde, gelatine powder polyphenyl granule, etc. 3) combustion performance of class B2 insulation material: molding polystyrene board(EPS), extruded polystyrene board (XPS), polyurethane (PU), polyethylene (PE), etc.
Q:What high-molecular polymers can be used as fire-resistant material binder?
Lignin is the least expensive.
Q:The fire prevention board line is made of what material?
(1) if it's real wood floor, the line should be made of wood. The ready-made wooden line, walnuts, price range depends on the texture width. The common width is 100 mm. One linear meter is around $17 - $30. Paulownia is cheaper with one linear meter more than 10 yuan. When it is composite wood floor, high-density plate modelling line can be used. The price is commonly between 40 to 80 yuan (2400 x 1200 mm), which depends on the thickness and density and also the factory. There are also imitated wooden aluminium line. (3) if it's the marble ground, you would better use marble line, which is 200 yuan one square meter. It's price is also unequal. The imitated stone is also available. There are a lot of kicking decoration materials and it depends on how you use it. That is to say crural line should be coordinate with the ground. It means that it sjould not only to be beautiful but also to be practical. It would be better if it is relatively cheap as well.
Q:Which manufacturers have the best fire-proof materials with light weight?
It now appears that asbestos is the best among the most common fireproof materials. But asbestos also has great harm, especially to lung. Shanghai Xinlong Fireproofing Material Co., Ltd. and Hubei Boyue Lightweight Material Co., Ltd. were established in 2009. The company is located in Wuhan Biological New Town and covers an area of ​​30 acres. The company is a specialized enterprise which is mainly engaged in the research and development, production, sale and construction of lightweight partition board, lightweight fireproof wall panel and lightweight wall panel. The two companies are both good.
Q:What is the limit of fireproof rolling shutter?
Fire proof door can be divided into Serie A, B and C in terms of fire endurance limit, fire resisting limit are not should be less than 1.20h, 0.90h and 0.60h. Set firewall has difficult sites can use fire shutter fire partition separating, when the back fire surface temperature rise refractory limit determination conditions of fire shutter, the fire resistant limit not less than 3H; when employed does not include back fire surface temperature rise do fireproof limit determination conditions of fireproof rolling curtain, on both sides of the shutter should be set up a separate closed type automatic water spraying system protection, sprinkler system continuation of time should not be less than three hours.
Q:What are the material requirements of class A fire resistant door ?
Grade A fire resistance steel door, namely steel wooden doors or steel-wooden composite door, including reinforced wooden door, is usually used in indoor. In fact, it is the door with steel bar inside and density board or blockboard outside.
Q:Who knows what is the standard of insulation material whose fire proof is level A?
Fire insulation materials of level A is non combustible building materials, and does not have any burning material. Level A1: single inorganic non combustible, no open flame. Level A2: A2 level: composite organic non combustible, that is, composite materials, non flammable, smoke volume should reach the standard.
Q:How to apply the alumina powder on refractories?
The most common one in use is the refractory bricks.

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