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酸(suan)(suan)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)耐(nai)火(huo)(huo)(huo)(huo)(huo)材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)通常指含有(you)相當數(shu)量二(er)氧化(hua)(hua)硅(gui)(gui)的(de)(de)耐(nai)火(huo)(huo)(huo)(huo)(huo)材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)。主要(yao)有(you)：(1)強(qiang)酸(suan)(suan)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)硅(gui)(gui)磚(zhuan)、不(bu)定形硅(gui)(gui)質(zhi)(zhi)耐(nai)火(huo)(huo)(huo)(huo)(huo)材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)以(yi)(yi)及石英(ying)(ying)(ying)玻(bo)璃制品(pin)、熔融石英(ying)(ying)(ying)再結合(he)制品(pin)；(2)中等酸(suan)(suan)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)半硅(gui)(gui)質(zhi)(zhi)耐(nai)火(huo)(huo)(huo)(huo)(huo)材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)及葉蠟石質(zhi)(zhi)耐(nai)火(huo)(huo)(huo)(huo)(huo)材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)；(3)弱酸(suan)(suan)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)黏土(tu)(tu)質(zhi)(zhi)耐(nai)火(huo)(huo)(huo)(huo)(huo)材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)。酸(suan)(suan)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)耐(nai)火(huo)(huo)(huo)(huo)(huo)材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)的(de)(de)主要(yao)特點是在(zai)高溫下(xia)能抵(di)抗(kang)酸(suan)(suan)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)物(wu)質(zhi)(zhi)(酸(suan)(suan)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)渣(zha)(zha))的(de)(de)侵蝕，但(dan)易(yi)與堿性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)物(wu)質(zhi)(zhi)(堿性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)渣(zha)(zha))起反(fan)應，鋯英(ying)(ying)(ying)石質(zhi)(zhi)耐(nai)火(huo)(huo)(huo)(huo)(huo)材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)和(he)碳化(hua)(hua)硅(gui)(gui)質(zhi)(zhi)耐(nai)火(huo)(huo)(huo)(huo)(huo)材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)作(zuo)為(wei)(wei)特殊(shu)酸(suan)(suan)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)耐(nai)火(huo)(huo)(huo)(huo)(huo)材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)也歸(gui)于此(ci)類。酸(suan)(suan)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)耐(nai)火(huo)(huo)(huo)(huo)(huo)材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)以(yi)(yi)氧化(hua)(hua)硅(gui)(gui)為(wei)(wei)主要(yao)成分，常用(yong)的(de)(de)有(you)硅(gui)(gui)磚(zhuan)和(he)粘土(tu)(tu)磚(zhuan)。硅(gui)(gui)磚(zhuan)是含氧化(hua)(hua)硅(gui)(gui)93％以(yi)(yi)上的(de)(de)硅(gui)(gui)質(zhi)(zhi)制品(pin)，使用(yong)的(de)(de)原料(liao)(liao)(liao)(liao)有(you)硅(gui)(gui)石、廢硅(gui)(gui)磚(zhuan)等，其抗(kang)酸(suan)(suan)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)爐(lu)(lu)渣(zha)(zha)侵蝕能力(li)強(qiang)，荷(he)重軟(ruan)化(hua)(hua)溫度高，重復(fu)煅燒后體積不(bu)收(shou)縮，甚(shen)至略(lve)有(you)膨脹；但(dan)其易(yi)受堿性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)渣(zha)(zha)的(de)(de)侵蝕，抗(kang)熱振(zhen)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)差。硅(gui)(gui)磚(zhuan)主要(yao)用(yong)于焦爐(lu)(lu)、玻(bo)璃熔窯、酸(suan)(suan)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)煉鋼爐(lu)(lu)等熱工設備。粘土(tu)(tu)磚(zhuan)以(yi)(yi)耐(nai)火(huo)(huo)(huo)(huo)(huo)粘土(tu)(tu)為(wei)(wei)主要(yao)原料(liao)(liao)(liao)(liao)，含有(you)30％～46％的(de)(de)氧化(hua)(hua)鋁，屬弱酸(suan)(suan)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)耐(nai)火(huo)(huo)(huo)(huo)(huo)材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)，抗(kang)熱振(zhen)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)好，對酸(suan)(suan)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)爐(lu)(lu)渣(zha)(zha)有(you)抗(kang)蝕性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)，應用(yong)廣泛。

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