保溫爐是(shi)一(yi)臺(tai)容量(liang)可(ke)達600公斤的(de)臥式有(you)鐵(tie)芯工(gong)頻感應電(dian)(dian)爐(lu),為了便(bian)于控制爐(lu)內熔融金(jin)屬的(de)溫度,可(ke)以采用調壓(ya)變(bian)壓(ya)器進行保溫,但(dan)這種(zhong)舊(jiu)式設備操作麻煩,二(er)來消耗電(dian)(dian)力多,設備占用面積也大,采用可(ke)控硅交流調壓(ya)器,操作簡單便(bian)利,而且能(neng)節(jie)約用電(dian)(dian),一(yi)臺(tai)保溫爐(lu)比用調壓(ya)變(bian)壓(ya)器每晝夜(ye)可(ke)以節(jie)省300度電(dian)(dian),又能(neng)為生產自動(dong)化創(chuang)造了條件。
另(ling)外,由(you)于(yu)升液(ye)(ye)(ye)管的(de)工(gong)作(zuo)條件惡(e)劣,鑄(zhu)造科技工(gong)作(zuo)者正在(zai)尋求更好(hao)的(de)材料和(he)合理的(de)措施以(yi)提高(gao)(gao)(gao)其壽命。現有(you)(you)資料表(biao)明(ming):采用(yong)(yong)(yong)(yong)含(han)磷2.7%的(de)鑄(zhu)鐵、含(han)銅6.5%的(de)鑄(zhu)鐵、高(gao)(gao)(gao)錳鑄(zhu)鐵或用(yong)(yong)(yong)(yong)具(ju)有(you)(you)D型石墨的(de)珠光體基(ji)體的(de)孕育鑄(zhu)鐵鑄(zhu)造升液(ye)(ye)(ye)管,其壽命可(ke)能延長,可(ke)用(yong)(yong)(yong)(yong)120h以(yi)上(shang)(shang);有(you)(you)的(de)采用(yong)(yong)(yong)(yong)普通鑄(zhu)鐵管進行表(biao)面滲硫處(chu)理,在(zai)鋁(lv)(lv)液(ye)(ye)(ye)中的(de)壽命約(yue)可(ke)提高(gao)(gao)(gao)3倍;有(you)(you)的(de)在(zai)鑄(zhu)鐵管表(biao)面噴鍍一(yi)層三氧(yang)化(hua)二鋁(lv)(lv)、氧(yang)化(hua)鋯或氧(yang)化(hua)鉻等材料,升液(ye)(ye)(ye)管在(zai)鋁(lv)(lv)液(ye)(ye)(ye)中的(de)壽命可(ke)達700h;有(you)(you)的(de)試用(yong)(yong)(yong)(yong)氮化(hua)硅(gui)、碳化(hua)硅(gui)或氧(yang)化(hua)硼等耐熱陶(tao)瓷作(zuo)升液(ye)(ye)(ye)管,雖然(ran)成本(ben)高(gao)(gao)(gao),但在(zai)鋁(lv)(lv)液(ye)(ye)(ye)中可(ke)用(yong)(yong)(yong)(yong)半年(nian)以(yi)上(shang)(shang);還有(you)(you)用(yong)(yong)(yong)(yong)石棉(mian)耐熱硅(gui)酸(suan)鹽作(zuo)升液(ye)(ye)(ye)管,在(zai)三班連續作(zuo)業的(de)情況(kuang)下,可(ke)使(shi)用(yong)(yong)(yong)(yong)4~5個月,效果良好(hao)。