The advantages of chrome corundum brick


Chrome corundum brick is alumina - chrome oxide as the main raw material production of high-performance, has the characteristics of high refractoriness, greatstrength, good thermal shock stability, strong ability to resist erosion, inuse, has the performances of scouring resistance, wear resistance, resistanceto spalling structure, has obtained the good effect in metallurgy, glass,carbon black, the petrochemical industry. Chrome corundum brick using rawmaterial is by the ratio of alumina and chromium oxide according tocertain proportion, go through high temperature melting synthesis of a solidsolution. Use special refractory materials production technology to makerefractory brick, can improve and enhance internal quality of the products,improve the high temperature performance of products.
1.Refractoryproperties of chrome corundum brick
AddCr2O3 to high purity corundum material, no matter how much the amount is, notonly will not reduce the fire performance of materials, instead, can make fireperformance of the material fire performance improved.
2.The strength of chrome corundum brick
Theroom temperature compressive strength of high purity corundum brick is 70 ~ 100MPa commonly, the room temperature compressive strength of high performance chrome corundum brick is generally larger 150 MPa, the intensity issignificantly higher than the corundum brick.This is because the products inthe process of burning, between particles and fines powder, fines powder andfines powder formed Al2O3 - Cr2O3 solid solution, calcium solid solutionconnect particles to fines powder together, make the strength of the materialgreatly increased.
3.Thermalshock resistance
AddCr2O3 to corundum, when the content of Cr2O3 is 10% ~ 66%, the thermal shockresistance of material decreased with increasing content of Cr2O3, namelythe low content of Cr2O3 of corundum brick, the thermalshock stability is better than Cr2O3 high content of chrome corundum brick.The Cr2O3 content of high-performance chrome corundum brick isaround 12% ~ 20%, improve more stability than the corundum brick.
4.Slagerosion resistance ability
Cr2O3or containing Cr2O3 of refractory material has the good resistance toslag, non-ferrous metallurgical slag, coal gasification furnace, oil gasfurnace slag and all kinds of glass melt dissolution ability. Cr2O3 meltor Cr2O3 reaction with slag generated liquid viscosity is larger than other lowmelt viscosity.
Article Source:The advantages of chrome corundum brick
Company name: Wanhao Refractory
Email:sales100@wanhaorefractory.com
Website:http://www.wanhaorefractory.com/
chrome corundum brick

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