保溫爐是一臺(tai)(tai)容(rong)量(liang)可(ke)達600公斤的臥式有鐵芯工頻感(gan)應電(dian)爐(lu)(lu),為了便于(yu)控(kong)制(zhi)爐(lu)(lu)內熔融金(jin)屬的溫(wen)(wen)度(du),可(ke)以(yi)采用(yong)調壓(ya)變(bian)壓(ya)器進行(xing)保溫(wen)(wen),但這種舊式設備操作(zuo)麻(ma)煩,二來消耗(hao)電(dian)力多,設備占用(yong)面積也大,采用(yong)可(ke)控(kong)硅交流(liu)調壓(ya)器,操作(zuo)簡單(dan)便利,而(er)且能(neng)節約用(yong)電(dian),一臺(tai)(tai)保溫(wen)(wen)爐(lu)(lu)比用(yong)調壓(ya)變(bian)壓(ya)器每晝夜(ye)可(ke)以(yi)節省300度(du)電(dian),又能(neng)為生(sheng)產自動化創造了條件(jian)。
另外,由于(yu)升液(ye)(ye)(ye)管(guan)的(de)(de)工作(zuo)條件(jian)惡劣,鑄(zhu)造科技工作(zuo)者正(zheng)在尋求更好的(de)(de)材料(liao)和合理(li)的(de)(de)措施以提高其壽(shou)(shou)命(ming)(ming)。現有(you)資料(liao)表明:采(cai)用(yong)(yong)(yong)(yong)含(han)磷2.7%的(de)(de)鑄(zhu)鐵(tie)(tie)、含(han)銅6.5%的(de)(de)鑄(zhu)鐵(tie)(tie)、高錳鑄(zhu)鐵(tie)(tie)或(huo)用(yong)(yong)(yong)(yong)具有(you)D型(xing)石(shi)墨的(de)(de)珠(zhu)光體基體的(de)(de)孕(yun)育鑄(zhu)鐵(tie)(tie)鑄(zhu)造升液(ye)(ye)(ye)管(guan),其壽(shou)(shou)命(ming)(ming)可(ke)能延長,可(ke)用(yong)(yong)(yong)(yong)120h以上(shang);有(you)的(de)(de)采(cai)用(yong)(yong)(yong)(yong)普(pu)通鑄(zhu)鐵(tie)(tie)管(guan)進行表面滲硫(liu)處理(li),在鋁液(ye)(ye)(ye)中的(de)(de)壽(shou)(shou)命(ming)(ming)約可(ke)提高3倍;有(you)的(de)(de)在鑄(zhu)鐵(tie)(tie)管(guan)表面噴(pen)鍍一層(ceng)三氧化二鋁、氧化鋯(gao)或(huo)氧化鉻(ge)等(deng)(deng)材料(liao),升液(ye)(ye)(ye)管(guan)在鋁液(ye)(ye)(ye)中的(de)(de)壽(shou)(shou)命(ming)(ming)可(ke)達(da)700h;有(you)的(de)(de)試用(yong)(yong)(yong)(yong)氮(dan)化硅(gui)(gui)、碳化硅(gui)(gui)或(huo)氧化硼等(deng)(deng)耐熱(re)陶瓷(ci)作(zuo)升液(ye)(ye)(ye)管(guan),雖然成本高,但在鋁液(ye)(ye)(ye)中可(ke)用(yong)(yong)(yong)(yong)半年以上(shang);還有(you)用(yong)(yong)(yong)(yong)石(shi)棉耐熱(re)硅(gui)(gui)酸鹽作(zuo)升液(ye)(ye)(ye)管(guan),在三班連續作(zuo)業的(de)(de)情況下,可(ke)使用(yong)(yong)(yong)(yong)4~5個月,效(xiao)果良好。