保溫爐是一臺容量可(ke)達600公斤的(de)(de)臥(wo)式有鐵芯工頻(pin)感應電(dian)(dian)(dian)爐,為(wei)了(le)便(bian)于控制爐內熔(rong)融金屬的(de)(de)溫度,可(ke)以采用調(diao)壓(ya)(ya)(ya)變(bian)壓(ya)(ya)(ya)器(qi)(qi)進行保溫,但這種舊(jiu)式設備操(cao)(cao)作麻煩(fan),二來消耗電(dian)(dian)(dian)力(li)多,設備占(zhan)用面積也大,采用可(ke)控硅(gui)交流調(diao)壓(ya)(ya)(ya)器(qi)(qi),操(cao)(cao)作簡單便(bian)利(li),而且(qie)能節約用電(dian)(dian)(dian),一臺保溫爐比(bi)用調(diao)壓(ya)(ya)(ya)變(bian)壓(ya)(ya)(ya)器(qi)(qi)每晝夜可(ke)以節省300度電(dian)(dian)(dian),又能為(wei)生產自動(dong)化創造(zao)了(le)條件(jian)。
另外,由(you)于升(sheng)液(ye)管(guan)的(de)(de)工(gong)作(zuo)條件惡(e)劣(lie),鑄(zhu)(zhu)造科技工(gong)作(zuo)者正在(zai)尋求更好的(de)(de)材料(liao)和合理的(de)(de)措(cuo)施以提高(gao)其壽命。現有資料(liao)表(biao)明:采(cai)(cai)用(yong)(yong)含(han)磷2.7%的(de)(de)鑄(zhu)(zhu)鐵(tie)(tie)、含(han)銅(tong)6.5%的(de)(de)鑄(zhu)(zhu)鐵(tie)(tie)、高(gao)錳鑄(zhu)(zhu)鐵(tie)(tie)或用(yong)(yong)具有D型石墨(mo)的(de)(de)珠光體基體的(de)(de)孕育鑄(zhu)(zhu)鐵(tie)(tie)鑄(zhu)(zhu)造升(sheng)液(ye)管(guan),其壽命可能延長,可用(yong)(yong)120h以上;有的(de)(de)采(cai)(cai)用(yong)(yong)普通鑄(zhu)(zhu)鐵(tie)(tie)管(guan)進行表(biao)面滲硫處(chu)理,在(zai)鋁液(ye)中(zhong)(zhong)的(de)(de)壽命約(yue)可提高(gao)3倍;有的(de)(de)在(zai)鑄(zhu)(zhu)鐵(tie)(tie)管(guan)表(biao)面噴鍍一層(ceng)三氧化(hua)二鋁、氧化(hua)鋯(gao)或氧化(hua)鉻(ge)等(deng)(deng)材料(liao),升(sheng)液(ye)管(guan)在(zai)鋁液(ye)中(zhong)(zhong)的(de)(de)壽命可達700h;有的(de)(de)試用(yong)(yong)氮化(hua)硅(gui)、碳(tan)化(hua)硅(gui)或氧化(hua)硼等(deng)(deng)耐熱(re)(re)陶(tao)瓷作(zuo)升(sheng)液(ye)管(guan),雖然成本高(gao),但在(zai)鋁液(ye)中(zhong)(zhong)可用(yong)(yong)半年以上;還有用(yong)(yong)石棉耐熱(re)(re)硅(gui)酸(suan)鹽(yan)作(zuo)升(sheng)液(ye)管(guan),在(zai)三班(ban)連(lian)續作(zuo)業的(de)(de)情況下,可使用(yong)(yong)4~5個(ge)月,效果良(liang)好。