保溫爐是一臺容(rong)量可(ke)達600公斤的(de)臥(wo)式有鐵芯工頻感應(ying)電(dian)爐，為(wei)了便于控制(zhi)爐內熔融金屬(shu)的(de)溫度，可(ke)以(yi)采用(yong)(yong)(yong)(yong)(yong)調壓(ya)變壓(ya)器(qi)進(jin)行保(bao)溫，但(dan)這種(zhong)舊式設(she)備操作麻煩，二來(lai)消耗電(dian)力多，設(she)備占用(yong)(yong)(yong)(yong)(yong)面(mian)積也大，采用(yong)(yong)(yong)(yong)(yong)可(ke)控硅交流調壓(ya)器(qi)，操作簡單便利(li)，而且能節(jie)約用(yong)(yong)(yong)(yong)(yong)電(dian)，一臺保(bao)溫爐比用(yong)(yong)(yong)(yong)(yong)調壓(ya)變壓(ya)器(qi)每晝夜(ye)可(ke)以(yi)節(jie)省300度電(dian)，又能為(wei)生(sheng)產自(zi)動化創(chuang)造了條件。

        另外，由于升液(ye)(ye)(ye)(ye)(ye)管(guan)(guan)的(de)(de)工(gong)(gong)作(zuo)(zuo)條件(jian)惡劣，鑄(zhu)(zhu)造(zao)(zao)科技(ji)工(gong)(gong)作(zuo)(zuo)者(zhe)正在(zai)(zai)(zai)(zai)尋求(qiu)更好的(de)(de)材(cai)料和合理的(de)(de)措施以提高其(qi)壽(shou)(shou)命。現有(you)(you)資(zi)料表明：采用(yong)(yong)(yong)(yong)含磷2．7%的(de)(de)鑄(zhu)(zhu)鐵、含銅(tong)6．5%的(de)(de)鑄(zhu)(zhu)鐵、高錳鑄(zhu)(zhu)鐵或(huo)用(yong)(yong)(yong)(yong)具有(you)(you)D型石墨的(de)(de)珠光(guang)體(ti)基體(ti)的(de)(de)孕育鑄(zhu)(zhu)鐵鑄(zhu)(zhu)造(zao)(zao)升液(ye)(ye)(ye)(ye)(ye)管(guan)(guan)，其(qi)壽(shou)(shou)命可(ke)能延長，可(ke)用(yong)(yong)(yong)(yong)120h以上；有(you)(you)的(de)(de)采用(yong)(yong)(yong)(yong)普通鑄(zhu)(zhu)鐵管(guan)(guan)進行表面滲硫處理，在(zai)(zai)(zai)(zai)鋁液(ye)(ye)(ye)(ye)(ye)中(zhong)(zhong)的(de)(de)壽(shou)(shou)命約(yue)可(ke)提高3倍；有(you)(you)的(de)(de)在(zai)(zai)(zai)(zai)鑄(zhu)(zhu)鐵管(guan)(guan)表面噴鍍一層三氧(yang)化(hua)(hua)二鋁、氧(yang)化(hua)(hua)鋯或(huo)氧(yang)化(hua)(hua)鉻等材(cai)料，升液(ye)(ye)(ye)(ye)(ye)管(guan)(guan)在(zai)(zai)(zai)(zai)鋁液(ye)(ye)(ye)(ye)(ye)中(zhong)(zhong)的(de)(de)壽(shou)(shou)命可(ke)達700h；有(you)(you)的(de)(de)試用(yong)(yong)(yong)(yong)氮化(hua)(hua)硅、碳化(hua)(hua)硅或(huo)氧(yang)化(hua)(hua)硼等耐熱(re)陶(tao)瓷(ci)作(zuo)(zuo)升液(ye)(ye)(ye)(ye)(ye)管(guan)(guan)，雖(sui)然(ran)成本高，但在(zai)(zai)(zai)(zai)鋁液(ye)(ye)(ye)(ye)(ye)中(zhong)(zhong)可(ke)用(yong)(yong)(yong)(yong)半(ban)年以上；還有(you)(you)用(yong)(yong)(yong)(yong)石棉耐熱(re)硅酸(suan)鹽(yan)作(zuo)(zuo)升液(ye)(ye)(ye)(ye)(ye)管(guan)(guan)，在(zai)(zai)(zai)(zai)三班(ban)連續作(zuo)(zuo)業(ye)的(de)(de)情況(kuang)下，可(ke)使用(yong)(yong)(yong)(yong)4～5個(ge)月，效果良(liang)好。