保溫爐是一(yi)(yi)臺(tai)(tai)容(rong)量(liang)可(ke)達600公斤的臥式有鐵芯工(gong)頻感應(ying)電(dian)(dian)(dian)爐，為了(le)便于控制爐內熔融金屬的溫(wen)度，可(ke)以采用(yong)(yong)調(diao)壓(ya)變(bian)壓(ya)器進行保溫(wen)，但這(zhe)種舊式設備操作麻煩，二來消耗(hao)電(dian)(dian)(dian)力多，設備占用(yong)(yong)面積也大，采用(yong)(yong)可(ke)控硅(gui)交流(liu)調(diao)壓(ya)器，操作簡單便利，而且能節約用(yong)(yong)電(dian)(dian)(dian)，一(yi)(yi)臺(tai)(tai)保溫(wen)爐比用(yong)(yong)調(diao)壓(ya)變(bian)壓(ya)器每晝夜可(ke)以節省300度電(dian)(dian)(dian)，又能為生(sheng)產自動化創造(zao)了(le)條(tiao)件(jian)。

        另(ling)外，由于升(sheng)(sheng)(sheng)液(ye)管(guan)(guan)(guan)的(de)(de)工作(zuo)條件惡劣，鑄(zhu)(zhu)(zhu)造科技工作(zuo)者正在(zai)(zai)(zai)尋求更好(hao)的(de)(de)材(cai)料(liao)和合理(li)的(de)(de)措施以提(ti)高其(qi)壽(shou)(shou)命(ming)(ming)。現有資料(liao)表(biao)明：采用(yong)(yong)含磷2．7%的(de)(de)鑄(zhu)(zhu)(zhu)鐵(tie)(tie)(tie)、含銅6．5%的(de)(de)鑄(zhu)(zhu)(zhu)鐵(tie)(tie)(tie)、高錳鑄(zhu)(zhu)(zhu)鐵(tie)(tie)(tie)或用(yong)(yong)具有D型石墨的(de)(de)珠光體(ti)基(ji)體(ti)的(de)(de)孕(yun)育鑄(zhu)(zhu)(zhu)鐵(tie)(tie)(tie)鑄(zhu)(zhu)(zhu)造升(sheng)(sheng)(sheng)液(ye)管(guan)(guan)(guan)，其(qi)壽(shou)(shou)命(ming)(ming)可能延長，可用(yong)(yong)120h以上；有的(de)(de)采用(yong)(yong)普通鑄(zhu)(zhu)(zhu)鐵(tie)(tie)(tie)管(guan)(guan)(guan)進行表(biao)面滲硫處理(li)，在(zai)(zai)(zai)鋁(lv)液(ye)中的(de)(de)壽(shou)(shou)命(ming)(ming)約(yue)可提(ti)高3倍；有的(de)(de)在(zai)(zai)(zai)鑄(zhu)(zhu)(zhu)鐵(tie)(tie)(tie)管(guan)(guan)(guan)表(biao)面噴鍍一層三(san)氧(yang)化二鋁(lv)、氧(yang)化鋯或氧(yang)化鉻等材(cai)料(liao)，升(sheng)(sheng)(sheng)液(ye)管(guan)(guan)(guan)在(zai)(zai)(zai)鋁(lv)液(ye)中的(de)(de)壽(shou)(shou)命(ming)(ming)可達700h；有的(de)(de)試(shi)用(yong)(yong)氮化硅、碳化硅或氧(yang)化硼等耐(nai)熱(re)陶瓷作(zuo)升(sheng)(sheng)(sheng)液(ye)管(guan)(guan)(guan)，雖然成本(ben)高，但在(zai)(zai)(zai)鋁(lv)液(ye)中可用(yong)(yong)半年(nian)以上；還有用(yong)(yong)石棉(mian)耐(nai)熱(re)硅酸鹽作(zuo)升(sheng)(sheng)(sheng)液(ye)管(guan)(guan)(guan)，在(zai)(zai)(zai)三(san)班連續作(zuo)業的(de)(de)情況(kuang)下，可使用(yong)(yong)4～5個月，效果良好(hao)。