calcined bauxite for refractory bricks

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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Quick Details

Place of Origin:	Shanghai, China (Mainland)	Shape:	Brick	Material:	Alumina Block
SiO2 Content (%):	3~9%	Al2O3 Content (%):	3~25%	MgO Content (%):	40~60%
CaO Content (%):	2%	Refractoriness (Degree):	1770°< Refractoriness< 2000°	CrO Content (%):	8~20%
SiC Content (%):	none	Model Number:	KS1323	Brand Name:	cnbm

Packaging & Delivery

Packaging Details:	carton
Delivery Detail:	3~5days

Specifications

calcined bauxite for refractory bricks
Refractory Bricks magnesia chrome bricks are mainly made from sintered

calcined bauxite for refractory bricks

Specifications

Refractory Bricks magnesia chrome bricks are mainly made from sintered magnesia and chrome-oxide after high pressure shaped

Refractory Bricks magnesia chrome bricks are mainly made from sintered magnesia and chrome-oxide, by high pressure shaping and high temperature firing. According to different requirements, the contents of the Cr2O3 can be changed.

item\index	MGe-8	MGe-12	MGe-16	MGe-20
MgO,% ≥	60	55	45	40
Cr2O3,% ≥	8	12	16	20
Apparent porosity % ≤	21	21	23	23
Cold crushing strength,MPa ≥	30	30	30	30
0.2MPa the load softens the beginning temperatur/°C ≥	1530	1550	1550	1550
Heat shock resistance(950°C air cooling),each ≥	Provide the data

$calcined bauxite for refractory bricks$

Q:How long is the fire endurance of the rock wool board?: Some time ago we did an experiment, the result is no change in the burning 30 minutes. The following is the picture of rock wool after the test .

Q:Refractory factory grinding brick dust harmful to the body?: Inhalation of this dust can affect people's respiratory tract for a long time

Q:What is the upper temperature limit for refractory materials?: The key depends on what refractories you use

Q:What is the the best matching ratio of refractory cement?: The best matching ratio of refractory cement is 30%. Refractory cement is also known as aluminate cement. Aluminate cement takes bauxite and limestone as raw materials, alumina content of about 50% as the clinker. And it is a hydraulic cementing material made by grinding. Refractory cement is also known as aluminate cement. Aluminate cement is often yellow or brown or gray. The main mineral of aluminate cement is mono calcium aluminate (CaO · Al2O3, abbreviated CA) and other aluminates, and a small amount of dicalcium silicate (2CaO · SiO2), etc. It is a special cement. I hope my answer will be helpful to you.

Q:What's the frequently used refractory material?: Refractory material is generally used in industrial departments like metallurgy, glass, cement, ceramics, machinery, hot working, petrochemical industry, power and national defense. Frequently used common refractory: silica?brick, semi-silica brick, clay brick, high alumina brick, magnesia brick, etc. Frequently used special refractory: AZS brick, corundum brick, direct-bonded?magnesia-chrome?bricks, carborundum brick, calcium oxide, chromium hemitrioxide, alumina, magnesium oxide, etc. Frequently used fireclay insulating refractory: diatomite product, asbestos product, insulation?board, etc. Frequently used unshaped refractory: ramming refractory, refractory castable, plastic refractory, refractory mortar, gun-mix refractory, refractory coating, lightweight refractory?castables, etc.

Q:What a blast furnace refractories generally?: Usually metal anchorage plus wear-resistant refractory spray paint. at the middle part we use high alumina bricks, corundum bricks. high duty refractory is important in improving bosh furnace lining.

Q:How much is the content of boron carbide in refractory material?: furthermore, aluminite powder costs only ?20,000/ton, and the addition is only 0.1%—2%, or just none; while boron carbide costs ?50,000/ton.

Q:Does the production of refractory belong to advanced technology？: Refractories production is advanced technology supported by the state. The refractory enterprise is high-tech enterprises and it needs to apply for it in science and technology bureau.

Q:How many types do refractory bricks have? Where the quality of refractory material is best? What is the model?: Sinosteel Luoyang (Luoyang Refractory Material Plant in the past): High alumina(mainly blast furnace), Gongyi. There are also a series of high-tech materials (silicon carbide, carborundum, etc.) a major producer of high alumina; silicious: Resistant material for steel, glass furnace, cement kiln); magnesia. Divide from uses and divide from chemical texture; silicious(glass furnace): Xinmi, Hennan Province, Lengshui River, coke oven, etc.). As for the models, Yixing and Changxing in Jiangsu Province: Haicheng, Liaoning Province; silicious, I do not understand your intentions; magnesia (nonferrous, steel refining; magnesia: High alumina brick; Dashiqiao area! Please put it in detail.

Q:What are the main characteristics of the sic refractories?: 1. The usge temperature of silicon carbide refractory is generally 1760 ℃ 2. The silicon carbide refractories can withstand the dramatic changes of temperature and have a good thermal shock resistance performance. To prevent the cracking or breaking of lining refractories. 3. Under the conditions of high or low temperature, it can withstand a certain compressive stress. 4. Under the conditions of high or low temperature, it can withstand friction. 5. It can withstand the huge hydraulic pressure or buoyancy of the metal. 6. It can also withstand the effect of furnace gases to prevent the infiltration of other refractories and reactions.

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