Brown corundum refractory brick is made of fused corundum as the main raw material. It is formed by high pressure and fired at high temperature. It has high thermal shock stability, low porosity, low expansion, good resistance to melt vapor and gas erosion, and excellent oxidation resistance. Dimensionally accurate advantages.
Payment:
T/TProduct Origin:
CHINAMin order:
1000The introduction of brown corundum brick ：
Brown corundum brick is a kind of refractory brick, with corundum (brown corundum, subwhite corundum, dense corundum, etc.), silicon carbide as the main raw materials, adding special additives to mix, using high pressure molding, after high temperature firing, fine grinding and pre-assembly product. It has the characteristics of low corrosion resistance to slag and iron, good alkali corrosion resistance, etc. It is suitable for the furnace bottom, hearth ceramic masonry, tuyere, iron mouth, slag mouth and other parts of blast furnaces of different volumes.
Production process and application of brown corundum refractory brick:
The composite brown corundum brick is made of bauxite and coke (anthracite) as the main raw materials, and is smelted at a high temperature of 2000 degrees in an electric arc furnace. The hardness is HV1800-2200, and the toughness is higher than that of SIC. The abrasive tool made of brown corundum is suitable for grinding metals with high tensile strength, such as various general steels, malleable cast iron, hard bronze, etc. It can also be used to manufacture brown corundum bricks. A high-grade refractory material.
The advantages and characteristics of brown corundum refractory bricks:
1. The corrosion rate of slag and iron is low.
2. Strong resistance to molten iron and alkaline slag erosion.
3. It is resistant to molten iron erosion and has strong self-repairing ability.
4. Long service life.
Physical and chemical indicators of brown corundum refractory brick:
|
Term |
Index |
|
Al2O3%≥ |
78-95 |
|
SiC% ≤ |
8-14 |
|
Fe2O3% ≤ |
0.5-1 |
|
Bulk density g/cm3≥ |
2.9 |
|
Apparent porosity% ≤ |
15 |
|
Normal temperature compressive strength Mpa ≥ |
100 |
|
0.2Mpa load start softening temperature ℃≥ |
1660-1700 |
|
Reburn line rate of change% |
0-+0.2 |
|
Thermal expansion rate% |
0-+0.5 |
|
Anti-slag corrosion rate%≤ |
10 |
Packaging of refractory bricks:
Brown corundum refractory brick manufacturer factory equipment:
Brown corundum refractory brick manufacturer according to your requirements shipping :
1.20GP FCL :25-28TONS
2.40GP FCL: 25-28TONS
3.40HQ FCL:25 TONS or 28 TONS
The above quantity with pallet ,the goods will be sent within 7-15days after receiving your order.
Gongyi Yuying Refractory Co., Ltd FAQ
1. What is your MOQ?
Our product MOQ is 1000.
2. What kind of software package will we use?
25 pallet can also be customized.
3. What is the delivery time?
1*20 GP container takes about 3 to 5 days.
4. Can you give me a discount?
Yes, we can negotiate
5. Can you give me advice based on the information we describe?
Of course, our mission is to provide you with professional services.
6. What is the shipping method?
Shipping, air, express. International train
7. What is the type of your company?
We are a Manufacturing & Trading Combo.
Corundum bricks are mainly used in iron-making blast furnaces and blast furnace hot blast furnaces, refining furnaces outside steel-making furnaces, sliding water heaters, glass melting furnaces and petrochemical industrial furnaces, etc.
The heavy part of the raw materials for the chrome zirconium corundum composite brick is sintered tabular corundum, high-purity chromium oxide, high-purity zircon, and Guangxi white cement.As the main raw material, the light part of the raw material is made of 47 mullite, kyanite, floating beads and coke gemstones as the main raw materials. During molding, a separator is set in the middle of the mold, and heavy materials and light materials are added at both ends. After high pressure molding , finished products made of high temperature sintering.
The heavy parts of the chrome-zirconium mullite composite bricks are made of high-purity sintered mullite, high-purity chromium oxide, high-purity zirconia, and Guangbai mud as the main raw materials, and the light part of the raw materials are made of 47 mullite, kyanite, Bleaching beads, coke gemstones and Guangxi white mud are the main raw materials
Chrome corundum brick refers to corundum refractory products containing Cr2O3. At high temperature, Cr2O3 and Al2O3 form a continuous solid solution, so the high temperature performance of chromium corundum products is better than that of pure corundum products. Chromium corundum products are widely used, and the content of Cr2O3 is mostly in the range of 9% to 15%.
high alumina refractory bricks is mainly used around the furnace cover, electrode holes and exhaust holes of electric furnaces, and its service life is 1 to 2 times longer than that of silica bricks.
The alumina ball is also called the high aluminum accumulation of heat ball.High alumina refractory ball is based on bauxite as the mainly raw refractory material.Adding powder and additives and anchoring agent.After proportioning, molding and high sintering to make it.The production engineering of high alumina refractory ball is similar to that of high alumina refractory brick.It should be based on the properties of raw materials,high alumina refractory ball requires production conditions and other factors to determine.
Silica brick: an acidic refractory mainly composed of tridymite, cristobalite and a small amount of residual quartz and glass phases. Its silica content is more than 94%, it has anti-acid slag erosion performance, high high temperature strength, high load softening temperature, long-term use in high temperature flower wells without deformation, but low thermal shock stability (heat exchange in water is 1-4 Second-rate).
Silicon carbide castables mainly use 98 silicon carbide as the main raw material, add water reducing agent and micropowder, and use pure calcium aluminate cement as binder to make amorphous refractory materials. Cupola and other high temperature materials to be recorded.
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