保溫爐是一臺(tai)容量可達600公斤的臥式有鐵芯工頻(pin)感(gan)應電(dian)爐,為了(le)便于控制爐內熔融金屬的溫(wen)(wen)度(du),可以(yi)采用(yong)(yong)調(diao)壓(ya)(ya)變壓(ya)(ya)器進(jin)行保(bao)溫(wen)(wen),但這種舊式設備操作(zuo)麻煩,二(er)來消耗電(dian)力(li)多,設備占用(yong)(yong)面積(ji)也大,采用(yong)(yong)可控硅交流調(diao)壓(ya)(ya)器,操作(zuo)簡(jian)單便利,而且能(neng)節約(yue)用(yong)(yong)電(dian),一臺(tai)保(bao)溫(wen)(wen)爐比用(yong)(yong)調(diao)壓(ya)(ya)變壓(ya)(ya)器每晝夜(ye)可以(yi)節省300度(du)電(dian),又能(neng)為生產自(zi)動化創造了(le)條件。
另外,由于升(sheng)液管(guan)的(de)(de)工作(zuo)(zuo)條件(jian)惡劣,鑄(zhu)(zhu)(zhu)造科(ke)技(ji)工作(zuo)(zuo)者正(zheng)在尋求更好(hao)的(de)(de)材料和合理(li)的(de)(de)措施以(yi)(yi)提高其(qi)壽(shou)命(ming)。現有(you)資料表明:采(cai)用(yong)(yong)(yong)含磷2.7%的(de)(de)鑄(zhu)(zhu)(zhu)鐵(tie)、含銅6.5%的(de)(de)鑄(zhu)(zhu)(zhu)鐵(tie)、高錳鑄(zhu)(zhu)(zhu)鐵(tie)或(huo)用(yong)(yong)(yong)具有(you)D型石墨的(de)(de)珠光體(ti)基(ji)體(ti)的(de)(de)孕育鑄(zhu)(zhu)(zhu)鐵(tie)鑄(zhu)(zhu)(zhu)造升(sheng)液管(guan),其(qi)壽(shou)命(ming)可能延(yan)長,可用(yong)(yong)(yong)120h以(yi)(yi)上(shang);有(you)的(de)(de)采(cai)用(yong)(yong)(yong)普通鑄(zhu)(zhu)(zhu)鐵(tie)管(guan)進行(xing)表面(mian)滲硫處(chu)理(li),在鋁(lv)液中(zhong)的(de)(de)壽(shou)命(ming)約可提高3倍(bei);有(you)的(de)(de)在鑄(zhu)(zhu)(zhu)鐵(tie)管(guan)表面(mian)噴鍍(du)一層三氧(yang)(yang)化(hua)二鋁(lv)、氧(yang)(yang)化(hua)鋯(gao)或(huo)氧(yang)(yang)化(hua)鉻等材料,升(sheng)液管(guan)在鋁(lv)液中(zhong)的(de)(de)壽(shou)命(ming)可達700h;有(you)的(de)(de)試用(yong)(yong)(yong)氮(dan)化(hua)硅、碳化(hua)硅或(huo)氧(yang)(yang)化(hua)硼等耐(nai)熱陶瓷作(zuo)(zuo)升(sheng)液管(guan),雖然成本高,但在鋁(lv)液中(zhong)可用(yong)(yong)(yong)半年以(yi)(yi)上(shang);還有(you)用(yong)(yong)(yong)石棉耐(nai)熱硅酸鹽作(zuo)(zuo)升(sheng)液管(guan),在三班連續作(zuo)(zuo)業的(de)(de)情(qing)況下,可使(shi)用(yong)(yong)(yong)4~5個月,效果良(liang)好(hao)。