保溫爐是一臺容量可達600公斤的臥式有鐵芯(xin)工頻感(gan)應電(dian)(dian)(dian)爐(lu),為(wei)了(le)便于控(kong)制爐(lu)內熔融(rong)金屬的溫(wen)(wen)度,可以采用(yong)調(diao)壓(ya)變壓(ya)器(qi)進行保溫(wen)(wen),但這種(zhong)舊式設(she)備操作麻煩,二(er)來消耗(hao)電(dian)(dian)(dian)力多,設(she)備占用(yong)面積(ji)也(ye)大,采用(yong)可控(kong)硅(gui)交流調(diao)壓(ya)器(qi),操作簡(jian)單便利,而且能(neng)節約用(yong)電(dian)(dian)(dian),一臺保溫(wen)(wen)爐(lu)比(bi)用(yong)調(diao)壓(ya)變壓(ya)器(qi)每晝夜可以節省300度電(dian)(dian)(dian),又能(neng)為(wei)生產自(zi)動(dong)化創造(zao)了(le)條件。
另外,由于升(sheng)(sheng)(sheng)液(ye)管的(de)(de)(de)工作條件惡劣,鑄(zhu)(zhu)(zhu)造(zao)科(ke)技工作者正在(zai)(zai)尋求更好的(de)(de)(de)材(cai)料和合理(li)(li)的(de)(de)(de)措(cuo)施以(yi)提高其壽(shou)命。現(xian)有(you)(you)資(zi)料表(biao)明:采用(yong)(yong)含磷2.7%的(de)(de)(de)鑄(zhu)(zhu)(zhu)鐵(tie)、含銅6.5%的(de)(de)(de)鑄(zhu)(zhu)(zhu)鐵(tie)、高錳鑄(zhu)(zhu)(zhu)鐵(tie)或(huo)用(yong)(yong)具有(you)(you)D型(xing)石(shi)墨的(de)(de)(de)珠光體基體的(de)(de)(de)孕育(yu)鑄(zhu)(zhu)(zhu)鐵(tie)鑄(zhu)(zhu)(zhu)造(zao)升(sheng)(sheng)(sheng)液(ye)管,其壽(shou)命可(ke)能(neng)延長,可(ke)用(yong)(yong)120h以(yi)上(shang);有(you)(you)的(de)(de)(de)采用(yong)(yong)普通(tong)鑄(zhu)(zhu)(zhu)鐵(tie)管進行表(biao)面(mian)滲硫處理(li)(li),在(zai)(zai)鋁(lv)液(ye)中(zhong)的(de)(de)(de)壽(shou)命約可(ke)提高3倍;有(you)(you)的(de)(de)(de)在(zai)(zai)鑄(zhu)(zhu)(zhu)鐵(tie)管表(biao)面(mian)噴鍍一層三氧化(hua)二鋁(lv)、氧化(hua)鋯或(huo)氧化(hua)鉻等(deng)材(cai)料,升(sheng)(sheng)(sheng)液(ye)管在(zai)(zai)鋁(lv)液(ye)中(zhong)的(de)(de)(de)壽(shou)命可(ke)達700h;有(you)(you)的(de)(de)(de)試用(yong)(yong)氮化(hua)硅、碳化(hua)硅或(huo)氧化(hua)硼(peng)等(deng)耐(nai)熱陶瓷(ci)作升(sheng)(sheng)(sheng)液(ye)管,雖然成本高,但在(zai)(zai)鋁(lv)液(ye)中(zhong)可(ke)用(yong)(yong)半年以(yi)上(shang);還有(you)(you)用(yong)(yong)石(shi)棉耐(nai)熱硅酸鹽作升(sheng)(sheng)(sheng)液(ye)管,在(zai)(zai)三班連續作業的(de)(de)(de)情況(kuang)下,可(ke)使用(yong)(yong)4~5個月,效果(guo)良好。