井(jing)式加熱(re)(re)爐供(gong)一(yi)般金屬機件在低(di)溫(wen)下進行(xing)均勻性退火(huo)(huo)(huo)、回火(huo)(huo)(huo)、加熱(re)(re)等(deng)熱(re)(re)處(chu)理(li)(li)之用(yong)(yong)，是一(yi)種回火(huo)(huo)(huo)效(xiao)果較好，相(xiang)對較節能的(de)常規回火(huo)(huo)(huo)處(chu)理(li)(li)設備，也(ye)可(ke)進行(xing)去應力或退火(huo)(huo)(huo)熱(re)(re)處(chu)理(li)(li)。爐底襯(chen)由輕(qing)質(zhi)粘土(tu)磚(zhuan)(zhuan)和重質(zhi)抗滲碳(tan)砌筑而成，爐墻(qiang)襯(chen)為復合(he)爐襯(chen)結構(gou)，耐火(huo)(huo)(huo)層(ceng)(ceng)(ceng)采用(yong)(yong)輕(qing)質(zhi)粘土(tu)磚(zhuan)(zhuan)，保(bao)溫(wen)層(ceng)(ceng)(ceng)用(yong)(yong)陶瓷(ci)纖(xian)維棉或粘土(tu)磚(zhuan)(zhuan)，各(ge)層(ceng)(ceng)(ceng)經過優(you)化(hua)設計(ji)。在耐火(huo)(huo)(huo)層(ceng)(ceng)(ceng)內預制了(le)不銹鋼掛鉤，用(yong)(yong)于電(dian)阻(zu)絲、帶(dai)的(de)安裝。