| Iron&steel industry plays an important role in the national economy. Blast furnace store is the most important equipment on ferrous-smelting industry, refractory is one of key factors to achieve its long service life. At present the average service life of the blast furnace stove is 15~20 years in advanced countries, but in China it is only about 8 years. National Metallurgical Bureau has definitely put forward that the developing direction of refractory is high efficiency, long service life, energy-saving and environmental protection from now on..As a state-owned key enterprise facing with intense market competition, especially as a special plant that manufactures "Al2O3-SiO2" products, LuoYang Refractory Group Co, ltd. has determined that its products are mainly for Iron&steel industry. So the aim that a postgraduate specially studies this question is to develop low cost, high performance, suiting market low creep refractories and determine proper technical process so as to direct the production.
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