High Purity Whiteness Aluminium Powder Al2O3 for Refractory Raw Materials
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- 30000 m.t./month
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High Pure Whiteness Aluminium Powder Al2o3
It is a kind of aluminate cement wrought material based upon calcium aluminate, it is called Aluminate cement when it has been finegrinded to hydraulicity cementing material, its code is CA. When the cement has a grinded Al2O3 content of above 68%, it can be added with appropriate amount of α-Al2O3 powder as requirement.
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:
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.
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- Q: Who know what kind of fire shutter fire rating are there?
- Fire resistance rating of the building elements is different due to the different requirements of the construction . 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. That is, if the fire resistance rating is two, also it is possible to use a class a fire door. Hope my answer will help you.
- Q: How is the grading of the level A new material fire insulation material?
- The thermal insulation materials are generally divided into level A and level B according to the flame rating. Level A is the non-combustible material, and level B is the combustible materials. The level B material is to blame for the fire in Shenyang hotel in CCTV building a few years ago . At present, the level A materials are widely used, with some prices even cheaper than the level B material. A level is roughly divided into insulation mortar, phenolic board, rock wool board and foam cement board, ect.
- Q: As for fireproofing material rock wool and glass wool, which one is better?
- As for fireproofing effect, the effect of rock wool is certainly better than glass wool , the highest temperature of rock wool is 1100 ℃, but the temperature of glass wool is only 600 ℃. In addition, if it's used in the external walls, then,unit weight of the glass wool is limited,and high unit weight can only be 60-90, but unit weight of rock wool can reach over 140, now external wall can't use glass wool, and only rock wool is A class fireproofing material. glass wool has lower thermal conductivity, rock wool has longer fiber length,as for the price, tons price of glass wool is more expensive than rock wool, but if it's acculated by square, square price of glass wool is cheaper than rock wool.
- Q: What a blast furnace refractories generally?
- refractories for blast furnace include carbon brick and silicon-aluminum refractory. BF carbon brick inlcudes half-carbon charcoal bricks, microporous charcoal brick, ultra porous charcoal bricks, graphitic brick and mould pressing charcoal brick. tiles and molded graphite small charcoal bricks. I hope my answers above are helpful to you and your ideal anwers.
- Q: What's the classification of flameproof glass, the refractory time of fireproofing glass.
- Classify according to the structure, fireproof?performance and fire endurance of fireproofing glass. Classify according to the structure: Composite fireproofing glass (FFB) and monolithic fireproofing glass, classify according to fire resistance: thermal insulation fire-resistant glass(class A) and non-thermal insulation fire-resistant glass (class C);classify it into 5 levels according to fire endurance: 0.5 h, 1.00 h,1.50h, 2.00h, 3.00h.
- Q: What is the material of fire resistant glass reinforced plastics grating?
- What is the material of fire resistant glass reinforced plastics grating?
- Q: How should fireproof building materials be ranked?
- Division of fire-proof grade of buildings is one of the most basic measures in the fire-fighting technology and measures of buildings. According to our national code of building design, fire-proof grade of buildings are classified into four levels of first, second, third and fourth, of which the first level is the highest in fire resistance and the fourth level is lowest in fire resistance. Fire resistance rating of buildings depends on the combustion performance and fire endurance of the building component. The so-called building component refers to the walls, foundations, beams, pillars, floors, stairs, ceilings, etc.
- Q: Are refractory materials and fireproofing materials the same?
- The refractory material and fireproofing material are not the same in the strict sense. Refractories refer to non-metallic materials of which refractoriness are higher than 1580 degrees. Now commonly used heat insulation materials can also be considered as refractory materials. The fire endurance of fireproof materials reaches certain requirements. Its test temperature is 540 degrees. Range of applications for two material are not the same. Refractory materials can be used in high-temperature region as it can withstand high temperature. Fireproof materials can not be used under high temperatures for a long time.
- Q: What's the A grade fireproofing material?
- A grade fireproofing material: 1. fire-proof plate; 2. fireproof wooden door; 3. fireproof wooden window frame; 4. fire resisting shutter; 5. fireproof and mothproof wood; 6. fireproof glove compartment; 8. fire?retardant?coating; 9. fire-proof?sealing?material.
- Q: Refractory inquiries
- Neutral refractory is refractory material which is difficult to react with acid or alkaline slag at high temperature, such as carbon refractory and chrome refractory. Some of the high alumina refractories are also attributed to this category.
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High Purity Whiteness Aluminium Powder Al2O3 for Refractory Raw Materials
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 30000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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