保溫爐是一臺容量可(ke)(ke)達(da)600公斤的(de)臥式有鐵芯工頻(pin)感應電爐(lu),為了便于控(kong)(kong)制爐(lu)內(nei)熔融金(jin)屬的(de)溫(wen)(wen)度,可(ke)(ke)以采用(yong)(yong)調(diao)壓變壓器(qi)進(jin)行保溫(wen)(wen),但這種舊式設備(bei)操作(zuo)麻(ma)煩(fan),二來消耗(hao)電力多,設備(bei)占用(yong)(yong)面積(ji)也大,采用(yong)(yong)可(ke)(ke)控(kong)(kong)硅(gui)交流調(diao)壓器(qi),操作(zuo)簡(jian)單便利,而且(qie)能(neng)節約用(yong)(yong)電,一臺保溫(wen)(wen)爐(lu)比用(yong)(yong)調(diao)壓變壓器(qi)每(mei)晝夜可(ke)(ke)以節省300度電,又能(neng)為生產自動化創造了條件。
另外,由于升(sheng)(sheng)液(ye)管(guan)的(de)(de)工作(zuo)條件惡劣,鑄造科技工作(zuo)者正在(zai)尋(xun)求更好(hao)的(de)(de)材料(liao)和合理的(de)(de)措施(shi)以(yi)提(ti)高(gao)其壽(shou)命。現有(you)資料(liao)表(biao)明:采用(yong)(yong)(yong)含磷2.7%的(de)(de)鑄鐵、含銅6.5%的(de)(de)鑄鐵、高(gao)錳鑄鐵或用(yong)(yong)(yong)具有(you)D型(xing)石墨(mo)的(de)(de)珠光體(ti)基(ji)體(ti)的(de)(de)孕育鑄鐵鑄造升(sheng)(sheng)液(ye)管(guan),其壽(shou)命可能延長,可用(yong)(yong)(yong)120h以(yi)上(shang);有(you)的(de)(de)采用(yong)(yong)(yong)普通(tong)鑄鐵管(guan)進行表(biao)面(mian)(mian)滲硫處理,在(zai)鋁液(ye)中(zhong)的(de)(de)壽(shou)命約可提(ti)高(gao)3倍;有(you)的(de)(de)在(zai)鑄鐵管(guan)表(biao)面(mian)(mian)噴(pen)鍍(du)一層三氧化(hua)(hua)二(er)鋁、氧化(hua)(hua)鋯或氧化(hua)(hua)鉻等材料(liao),升(sheng)(sheng)液(ye)管(guan)在(zai)鋁液(ye)中(zhong)的(de)(de)壽(shou)命可達700h;有(you)的(de)(de)試用(yong)(yong)(yong)氮化(hua)(hua)硅(gui)、碳(tan)化(hua)(hua)硅(gui)或氧化(hua)(hua)硼等耐(nai)熱(re)陶瓷作(zuo)升(sheng)(sheng)液(ye)管(guan),雖然(ran)成本(ben)高(gao),但(dan)在(zai)鋁液(ye)中(zhong)可用(yong)(yong)(yong)半年以(yi)上(shang);還(huan)有(you)用(yong)(yong)(yong)石棉耐(nai)熱(re)硅(gui)酸鹽作(zuo)升(sheng)(sheng)液(ye)管(guan),在(zai)三班連續作(zuo)業的(de)(de)情況下,可使用(yong)(yong)(yong)4~5個月,效(xiao)果良(liang)好(hao)。