硅(gui)(gui)(gui)磚(zhuan)(zhuan)(zhuan)是(shi)指SiO2含(han)量在(zai)93%以上(shang)的制品(pin)。硅(gui)(gui)(gui)磚(zhuan)(zhuan)(zhuan)是(shi)以SiO2含(han)量不小于(yu)(yu)96%的硅(gui)(gui)(gui)石為原料,加入礦化劑(ji)和結(jie)合劑(ji),經(jing)混煉(lian)、成(cheng)型、干燥、燒(shao)成(cheng)等工序制得(de)。硅(gui)(gui)(gui)石原料中的SiO2含(han)量越高(gao)(gao),制品(pin)的耐火度越高(gao)(gao)。硅(gui)(gui)(gui)磚(zhuan)(zhuan)(zhuan)品(pin)種較(jiao)多,根據(ju)用(yong)途分(fen)為:焦爐(lu)(lu)用(yong)硅(gui)(gui)(gui)磚(zhuan)(zhuan)(zhuan)、熱風爐(lu)(lu)用(yong)硅(gui)(gui)(gui)磚(zhuan)(zhuan)(zhuan)、電爐(lu)(lu)用(yong)硅(gui)(gui)(gui)磚(zhuan)(zhuan)(zhuan)、玻璃(li)窯(yao)用(yong)硅(gui)(gui)(gui)磚(zhuan)(zhuan)(zhuan)等。硅(gui)(gui)(gui)磚(zhuan)(zhuan)(zhuan)屬于(yu)(yu)酸性(xing)耐火材料,具有(you)較(jiao)強的抵抗酸性(xing)渣或(huo)酸性(xing)溶液侵(qin)蝕(shi)的能力,荷重(zhong)軟化溫(wen)度較(jiao)高(gao)(gao)是(shi)硅(gui)(gui)(gui)磚(zhuan)(zhuan)(zhuan)的優異特性(xing).