Raw Materials for Refractory - Dense Fused Alumina

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Specifications

Dense fused alumina ,compact fused alumina for refractory
1, High purity:99% min
2,Excellent performace

Dense fused alumina ,compact fused alumina for refractory

Description:

Dense corundum, with a-AL2O3, as main principle crystalline phase, gray, is characterized by high melting point,high bulk density, low apparent porosity,excellent wear resistance,slag resistance, steady volume and thermal shock resistance. It is an excellent refractory material in corundum series.

Advantages:

1) we are more specialized in the procuction.

2) we can offer more competitive price

3) we can produce as per customer's requirement

Chemical and physical analysis

CHEMICAL COMPOSITION	GRIT >0.1mm	TYPICAL VALUE	FINE POWDER ≤0.11mm	TYPICAL VALUE
AL2O3%≥	99	99.2	98.6	99.0
SiO2%≤	1.0	0.4	1.0	0.45
Fe2O3%≤	0.15	0.1	0.3	0.2
TiO2%≤	0.1	0.05	0.1	0.05
CaO%≤	0.1	0.05	0.1	0.05
MgO%≤	0.1	0.05	0.1	0.05
NaO2%≤	0.1	0.05	0.1	0.08
C%≤	0.1	0.08	0.12	0.1
Apparent Porosity%≤	2.0	0.8	2	0.8
Bulk density (g/cm³)%≥	3.90	3.93	/	/
True density (g/cm³)%≥	3.96	3.99	3.96	3.98

Packaging & Shipping

25kgs/bag 1MT /bag as per customer's requirement.

Our Services

1.We will keep the client informed about the cargo situation,from production time to the shipment.

2.We test samples picked up from the plant or loading port in our designated third party sample before every shipment to make sure each lot quality is good for our client.

3. we are reliable, Hope that friendly cooperation.

FACTORY:

$Dense Fused Alumina For Refractory$

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:What are fire resistant level standards of class A fire resistant door?: Grade standards: class A fire resistant door is an important part of fire-fighting apparatus, and an important step in the social fireproof work. The quality and use of class A fire resistant door is closely related to the success or failure of the fireproof work.. There are steel and wood for class A fire resistant door materials. Only those whose fire endurance is no less than 1.5h can be called class A fire resistant door. In general, the class A fire resistant door internal material is perlite, and still some are vermiculite fireproof board, foam core board, MCcomposite materials, and other fireproofing materials. The thickness of class A fire resistant door is usually 50mm. In places where there is strict requirements for fireproof?performance, class A fire resistant door is often installed.

Q:Detailed description of magnesia dolomite refractory material?: In the cement kiln firing zone, the f-CaO in the dolomite material is easily combined with the C2S in the clinker to form C3S, so the kiln cover can be easily hung, and the kiln crust and the refractory brick are firmly combined and easy to maintain.

Q:Who knows what kind of fire protection material is better?: Characteristic of polyurethane rigid foam thermal insulation decorative composite board: (1) ultra high cost performance, increased property's selling point (high cost performance) new model of thermal insulation material, excellent thermal insulation properties, elegant decorative effect, 50 years of service life, reduce maintenance costs and social waste. (2) it overcomes defects of traditional insulation technology (to solve the freezing and thawing, veneer cracking and shedding) traditional benzene board, the phenomenon of freezing and thawing that is easily appear in plastic extruded sheet, paint finish is easy to crack; its veneer facing can easily fall off; thermal insulation materials and wall are poorly adhered, easy off the whole. There is a themal bridge in dry hanging wall. (the characteristics of polyurethane composite board)

Q:What refractory materials are used in power plant: Vacuum mud machine, sintering furnace! And then I will introduce some application of thermal material in power plant (below) I hope I can help you. Energy saving is the trend of future industrial development efforts, grinding machine, conveyor belt, so the production of light thermal insulation materials will gain state support, drying kiln. Our factory mainly produce light thermal insulation brick. The refractory material we use most is light insulation brick, and the equipment used is sand mixer (Luohe, Henan)

Q:Is there anyone who can explain how to grade the level of fire insulation board?: The classification of fire proof level for thermal insulating material 1, Burning performance of building material can be classified into the following several grade according to national standard GB8624-97: Non combustible building materials: Non-conbustible material. Class B1: Refractory building materials: Flame retardant materials have good flame retardant effect.

Q:Who knows about the B-level fireproof insulation materials?: Commonly used B-level materials: Molding polystyrene foam, extruded polystyrene board, gelatine powder polyphenyl granule heat insulating slurry. Although the polyurethane is not the commonly used material, but the 9mm composite of monolayer gypsum board and PU insulating material can reach B-level.

Q:Who knows the classifications of magnesia refractory?: Magnesia chrome series products: The main ingredients of magnesium chromium series are MgO and Cr2O3. Periclase is the first phase and magnesia-chrome spinel is the second phase. Products belonging to this series are magnesium chrome brick and chrome magnesia brick. The main ingredients of magnesium aluminum series are MgO and Al203. As they generate MgO and Al203, all magnesium chromium series products contain magnesia material. magnesium calcium series products The main components are MgO and CaO. They have high melting points, which are important magnesia materials. 5, magnesium silicon series products: The main component of magnesite series is SiO2, when the C / S<5, SiO2 and MgO generate MgO.Al2O3 (forsterite). From the perspective of microscopic mineral, main products of pure aluminum series include magnesium aluminum brick, periclase spinel brick, corundum spinel brick and aluminum-spinel castable in unshaped materials. I hope this answer can help you.

Q:which kind of refractory is used in golden smelting furnace? How about his using temperature: generally the price of the quartz sand refractory material is higher and the temperature can meet the requirement of 2000 degree.

Q:Introduction to refractory material: The best way to learn is on-site contact. If for produing purpose, it is better to ask teh leader of a plant. If for application, go to steel mill (cement plant, glassworks, etc.) to learn and look up information. Theory alone is of no help.

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