$High Purity Aluminum Oxide Raw Materials for Refractory Alumina Oxide Al2O3 System 1$
$High Purity Aluminum Oxide Raw Materials for Refractory Alumina Oxide Al2O3 System 2$
$High Purity Aluminum Oxide Raw Materials for Refractory Alumina Oxide Al2O3 System 3$
$High Purity Aluminum Oxide Raw Materials for Refractory Alumina Oxide Al2O3 System 4$

$High Purity Aluminum Oxide Raw Materials for Refractory Alumina Oxide Al2O3$

$High Purity Aluminum Oxide Raw Materials for Refractory Alumina Oxide Al2O3 System 1$

$High Purity Aluminum Oxide Raw Materials for Refractory Alumina Oxide Al2O3 System 2$

$High Purity Aluminum Oxide Raw Materials for Refractory Alumina Oxide Al2O3 System 3$

$High Purity Aluminum Oxide Raw Materials for Refractory Alumina Oxide Al2O3 System 4$

High Purity Aluminum Oxide Raw Materials for Refractory Alumina Oxide Al2O3

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 30000 m.t./month

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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 Al2O3

If you’ve any enquiry please don’t hesitate to contact us!

Q:What are the construction measures of refractory material in winter? Please descriptive briefly.: The temperature is low in winter, so refractory bulk materials should be stirred evenly on time to avoid freezing.

Q:Can you tell me the classification of fireproof sealing material.: Organic fireproof sealing material include: fire-proof sealing plate, foam sealing materials, flame retardant module, flexible organic plugging material, inorganic fire sealant, plugging and fire package, etc. Organic plugging material take organic materials as the adhesive with certain flexibility or plasticity when used. The product is thick liquid or cement. Inorganic plugging material take powder of solid inorganic material as the main ingredients, and admixture mixed use, with proper workability. Fireproof bag apply bag shaped object made up by fire-proof materia to large hole fire plug or cable tray fire compartmentation (fire package also called as refractory package or fire protection package). Fire modules is made up of fireproof material, which is a solid with a certain shape and size and can be easily cut and drilled, suitable for holes or fire-proof sealing of cable tray. fireproof sealing material is the plank made up of fireproof material, which is a solid with a certain shape and size and can be easily cut and drilled, suitable for holes or fire-proof sealing of cable tray. Foam block after injection holes can lathery foam and seal hole. Sealing strip is made of fire prevention materials with certain geometry shape or flexible coil geometry.

Q:What are the characteristics of the carbon composite refractories?: The features of carbon composite refractories: 1. It is with an aggressive high thermal shock resistance 2. Good resistance to molten steel and slag

Q:What's the heat conductivity coefficient of fire-resistant material?: 5～5 (Unit: W·m-1·K-1). The symbols are λ or K. Thermal conductivity and material properties Thermal insulation material generally is 0, and is related to organizational structure and working temperature. Thermal conductivity of the material refers to the heat transferred from from one plane to another plane in 1 seconds. Generally the thermal conductivity of fire-resistant material is 1. The larger the value is, the stronger the thermal conduction performance is. If the temperature of two planses differes for 1K, then the thermal conductivity is 03~1. The plane cover 1square meter.

Q:How many types of special refractories are there?: Metal ceramics, high temperature coatings, high temperature fiber and other reinforced materials

Q:What is the most reasonable drying heating curve of magnesia refractories? Products of less than 0.5T: You'd better oxidize magnesia preformed unit at room temperature for a longer period of time, then bake it, during which, it's enough to control the maximum temperature within 300 degrees. During the middle process, usually heating up for 4 hours and keep warm for 3 hours. The entire heating up process takes about 20 hours. If it is the site operation magnesia-based castable, it should be heated slowly in the early stage, and pay attention to keeping warm at 80 degrees Celsius. Every manufacturers has their own heating curves, so do not blindly adopt existing curves, try to make your own heating curve.

Q:Can anyone tell me what material the first rate fire resistant door is?: Material of Class A fire doors mainly are steel, wood, steel and wood, and other materials. Fire door is one of the measures of the building fire separation, usually used on the firewall, entrance and exit of staircase or tube well openings, which is required to hane the abilities of smoke insulation and fire insulation. Fire door plays an important role in prevention of the spread of smoke and fire and the reduction of fire loss. Therefore, we must have strict requirements. Fire doors are divided into class A, class B and class C, whose properties of fire-resistant thermal insulation and fire-resistant integrity should be no less than the following values: Class A should be1.50h; class B should be1.0h; Class C should be 0.5h. - stipulations in article 4.5.1.2 in "The New Standard of Fire Doors" GB12955-2008. I hope my answer can help you. Thank you.

Q:Which industry does refractory belong to? Does it belong to construction industry?: It belongs to material, and after all, more than 60% refractories are used in metallurgical industry. If you insist on classifying it, it belongs to supporting industry of metallurgical industry. Refractory industry itself is independent.

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