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硅(gui)(gui)(gui)磚(zhuan)(zhuan)(zhuan)(zhuan)是(shi)指(zhi)SiO2含(han)(han)量在93%以上的(de)制(zhi)(zhi)品。硅(gui)(gui)(gui)磚(zhuan)(zhuan)(zhuan)(zhuan)是(shi)以SiO2含(han)(han)量不(bu)小于96%的(de)硅(gui)(gui)(gui)石為原料(liao)，加入(ru)礦(kuang)化劑和結合劑，經(jing)混煉、成型、干燥、燒成等(deng)工序制(zhi)(zhi)得(de)。硅(gui)(gui)(gui)石原料(liao)中的(de)SiO2含(han)(han)量越高，制(zhi)(zhi)品的(de)耐火度越高。硅(gui)(gui)(gui)磚(zhuan)(zhuan)(zhuan)(zhuan)品種較(jiao)多，根據用(yong)(yong)途分為：焦爐(lu)用(yong)(yong)硅(gui)(gui)(gui)磚(zhuan)(zhuan)(zhuan)(zhuan)、熱風爐(lu)用(yong)(yong)硅(gui)(gui)(gui)磚(zhuan)(zhuan)(zhuan)(zhuan)、電爐(lu)用(yong)(yong)硅(gui)(gui)(gui)磚(zhuan)(zhuan)(zhuan)(zhuan)、玻璃窯(yao)用(yong)(yong)硅(gui)(gui)(gui)磚(zhuan)(zhuan)(zhuan)(zhuan)等(deng)。硅(gui)(gui)(gui)磚(zhuan)(zhuan)(zhuan)(zhuan)屬(shu)于酸性耐火材(cai)料(liao)，具有(you)較(jiao)強的(de)抵抗酸性渣或酸性溶液侵蝕的(de)能力(li)，荷重軟化溫(wen)度較(jiao)高是(shi)硅(gui)(gui)(gui)磚(zhuan)(zhuan)(zhuan)(zhuan)的(de)優(you)異特性.