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Development of Thermal Shock Resistant and Low Creep Bricks for Hot Blast Stove
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作者 LIN Binyin LIU Jiehua +1 位作者 ZHOU Ningsheng ZHANG Jianwu 《China's Refractories》 CAS 2005年第4期8-12,共5页
The paper describes the ries with high thermal shock development of brick seresistance and low creep rate for hot blast stove, including research target and research plan on the basis of analysis on how to enhance the... The paper describes the ries with high thermal shock development of brick seresistance and low creep rate for hot blast stove, including research target and research plan on the basis of analysis on how to enhance the thermal shock resistance and to lower creep rate of the bricks. Efforts have been made on the selection of starting materials such as corundum, mullite, andalusite and sillimanite etc., together with some measures taken on multi-grade formulation, homogenizing of the matrix of bricks and addition of some special additives. The results indicated that the bricks were with characteristics such as higher thermal shock resistance of 〉 30 cycles under quenching in water from 1000℃, and creep rate of 0. 2 under 1400℃ for 20 -50hrs with load of 0.2 MPa. Now a series of products of this kind have been developed and produced. The application of the products in Wuhan Iron and Steel Co. showed very prospective results. Now most of domestic large sized blast furnaces say ≥- 1000m^3, including those of Baoshan Iron and Steel Co. , have selected the series products made by Gongyi No. 5 Refractories Head Factory(GYWN) for their hot blast stoves. 展开更多
关键词 Refractory bricks Hot blast stove Low creep Thermal shock resistance andalusite mullite CORUNDUM SILLIMANITE
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