生产玻璃(li)纤维(wei)的主要(yao)原料是？
生产玻(bo)(bo)璃(li)纤(xian)维(wei)(wei)(wei)的(de)(de)(de)主(zhu)要原料是(shi)石(shi)(shi)英(ying)砂(sha)、氧化(hua)铝(lv)和叶蜡石(shi)(shi)、石(shi)(shi)灰石(shi)(shi)、白云(yun)石(shi)(shi)、硼酸、纯碱、芒硝(xiao)、萤(ying)石(shi)(shi)等。生产方(fang)法大致分两(liang)类：一(yi)(yi)类是(shi)将熔融玻(bo)(bo)璃(li)直接制(zhi)(zhi)成(cheng)(cheng)纤(xian)维(wei)(wei)(wei)；一(yi)(yi)类是(shi)将熔融玻(bo)(bo)璃(li)先(xian)制(zhi)(zhi)成(cheng)(cheng)直径20mm的(de)(de)(de)玻(bo)(bo)璃(li)球或棒，再以多种方(fang)式加热重熔后制(zhi)(zhi)成(cheng)(cheng)直径为(wei) 3～80μm的(de)(de)(de)甚细纤(xian)维(wei)(wei)(wei)。通(tong)过铂合金板(ban)以机械拉(la)丝方(fang)法拉(la)制(zhi)(zhi)的(de)(de)(de)无限长(zhang)的(de)(de)(de)纤(xian)维(wei)(wei)(wei)，称(cheng)(cheng)(cheng)(cheng)为(wei)连续(xu)玻(bo)(bo)璃(li)纤(xian)维(wei)(wei)(wei)，通(tong)称(cheng)(cheng)(cheng)(cheng)长(zhang)纤(xian)维(wei)(wei)(wei)。通(tong)过辊筒(tong)或气流制(zhi)(zhi)成(cheng)(cheng)的(de)(de)(de)非连续(xu)纤(xian)维(wei)(wei)(wei),称(cheng)(cheng)(cheng)(cheng)为(wei)定长(zhang)玻(bo)(bo)璃(li)纤(xian)维(wei)(wei)(wei),通(tong)称(cheng)(cheng)(cheng)(cheng)短纤(xian)维(wei)(wei)(wei)。借离心力或高速(su)气流制(zhi)(zhi)成(cheng)(cheng)的(de)(de)(de)细、短、絮状纤(xian)维(wei)(wei)(wei)，称(cheng)(cheng)(cheng)(cheng)为(wei)玻(bo)(bo)璃(li)棉。玻(bo)(bo)璃(li)纤(xian)维(wei)(wei)(wei)经(jing)加工(gong)，可制(zhi)(zhi)成(cheng)(cheng)多种形态的(de)(de)(de)制(zhi)(zhi)品，如纱(sha)、无捻粗纱(sha)、短切原丝、布、带、毡、板(ban)、管等。
