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About Fused Zirconium Corundum Bricks, There are Even Those Things you Don’t Know
2019-04-22 15:33:54The fused zirconia corundum brick is made of industrial zirconia and alumina. After superfine pulverization, the powder particle size is strictly controlled. High-strength, high-resistance zirconia-alumina composite ceramics can be obtained by conventional techniques. Corundum brick is a high-grade refractory material.
The fused zirconia corundum brick, also known as AZS fused zirconium corundum brick, is abbreviated as AZS. It is based on the three chemical compositions of the Al2O3-Zr02-Sio2 ternary phase diagram. It is arranged according to its content. Al2O3 takes A, Zr02 takes Z, Sio2 takes S, the national standard uses this abbreviation, such as No. 33 fused cast zirconium corundum brick, abbreviated as AZS—33#, No. 36 fused cast zirconium corundum brick, abbreviated as AZS—36#, No. 41 fused cast zirconium corundum brick, abbreviated as AZS—41#.
The fused zirconia corundum brick is a white solid formed by pure alumina powder and zircon sand containing about 65% zirconia and 34% silica, which is melted in an electric furnace and then injected into a mold to form a rock phase. The structure consists of an eutectoid and a glass phase of corundum and zirconium, which are phased as eutectoids of the corundum phase and the zircon oblique phase, and the glass phase is filled between their crystals.
The fused cast brick manufacturing process combines selected zircon sand and industrial alumina powder in a 1:1 ratio, plus a small amount of NaZO (added in the form of sodium carbonate), B20: (added in the form of boric acid or borax), mixing Uniform, after casting at 1800~1900 °C, it can be obtained by casting and casting with zr02)33%. On this basis, using partially desiliconized zircon sand as raw material, a cast brick containing ZrO236%~41% can be obtained. Zirconium corundum bricks are made of industrial alumina powder and selected zircon sand, and have a refractory product with a ZrOZ content of 33% to 45%. Zirconium corundum bricks are mainly used in glass industry tank kiln. Sunrise refractory materials provide you with high quality refractory materials.
Zhengzhou Sunrise Refractory Co., Ltd. has been producing and selling refractory materials for many years. Our years of experience have made us more professional. If you have any questions or questions about fused zirconium corundum bricks, please call Sunrise Refractory Co., Ltd., our company will provide you with High quality refractory materials and intimate service.
