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math, physics, and chemistry
:
metallurgy
>
semi-silica brick
Contents
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No. 1
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English Expression
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No. 1
semisilica brick
含氧化铝15%~30%、二氧化硅含量大于65%的硅酸铝质耐火材料。
高温体积稳定。体积变化较小。耐热震性优良。在使用中可形成较多的高黏度玻璃相,使砌体砖缝和工作面密实,砌体完整,有利于提高砌体的抗渗透性,减少熔渣对砌体的侵蚀作用。
采用的主要原料有叶蜡石、硅质黏土、高岭土、泡沙石和白泥等。经成型、烧成而制得。
用于玻璃熔窑、盛钢水桶、加热炉、化铁炉、炼钢平炉蓄热室等。
English Expression
: semi-silica brick, semisilica brick