保溫爐是一臺(tai)容(rong)量可(ke)達600公斤的臥式有(you)鐵芯工頻(pin)感應電(dian)爐,為了便于控制爐內熔融金(jin)屬的溫度,可(ke)以采(cai)用(yong)(yong)調(diao)壓變壓器進行保(bao)溫,但這種(zhong)舊式設備(bei)操(cao)作麻煩(fan),二來(lai)消(xiao)耗電(dian)力(li)多(duo),設備(bei)占用(yong)(yong)面積也大,采(cai)用(yong)(yong)可(ke)控硅交流調(diao)壓器,操(cao)作簡(jian)單(dan)便利,而且能節(jie)約用(yong)(yong)電(dian),一臺(tai)保(bao)溫爐比(bi)用(yong)(yong)調(diao)壓變壓器每(mei)晝夜可(ke)以節(jie)省(sheng)300度電(dian),又(you)能為生(sheng)產自動化創造了條(tiao)件(jian)。
另外(wai),由(you)于升液(ye)(ye)管(guan)(guan)的(de)(de)(de)(de)工(gong)作(zuo)條(tiao)件(jian)惡劣,鑄(zhu)(zhu)造(zao)科(ke)技(ji)工(gong)作(zuo)者正在(zai)(zai)(zai)尋求(qiu)更好的(de)(de)(de)(de)材料和合理(li)的(de)(de)(de)(de)措施以提(ti)高(gao)其壽命。現(xian)有(you)資料表(biao)(biao)明(ming):采用(yong)(yong)(yong)(yong)含磷2.7%的(de)(de)(de)(de)鑄(zhu)(zhu)鐵、含銅6.5%的(de)(de)(de)(de)鑄(zhu)(zhu)鐵、高(gao)錳鑄(zhu)(zhu)鐵或用(yong)(yong)(yong)(yong)具有(you)D型石墨(mo)的(de)(de)(de)(de)珠光體(ti)基體(ti)的(de)(de)(de)(de)孕(yun)育(yu)鑄(zhu)(zhu)鐵鑄(zhu)(zhu)造(zao)升液(ye)(ye)管(guan)(guan),其壽命可(ke)能延(yan)長,可(ke)用(yong)(yong)(yong)(yong)120h以上(shang)(shang);有(you)的(de)(de)(de)(de)采用(yong)(yong)(yong)(yong)普通鑄(zhu)(zhu)鐵管(guan)(guan)進(jin)行表(biao)(biao)面滲硫處(chu)理(li),在(zai)(zai)(zai)鋁液(ye)(ye)中的(de)(de)(de)(de)壽命約可(ke)提(ti)高(gao)3倍;有(you)的(de)(de)(de)(de)在(zai)(zai)(zai)鑄(zhu)(zhu)鐵管(guan)(guan)表(biao)(biao)面噴鍍一層三氧(yang)化(hua)二鋁、氧(yang)化(hua)鋯或氧(yang)化(hua)鉻等材料,升液(ye)(ye)管(guan)(guan)在(zai)(zai)(zai)鋁液(ye)(ye)中的(de)(de)(de)(de)壽命可(ke)達(da)700h;有(you)的(de)(de)(de)(de)試用(yong)(yong)(yong)(yong)氮化(hua)硅(gui)、碳(tan)化(hua)硅(gui)或氧(yang)化(hua)硼等耐熱陶(tao)瓷作(zuo)升液(ye)(ye)管(guan)(guan),雖然成(cheng)本高(gao),但(dan)在(zai)(zai)(zai)鋁液(ye)(ye)中可(ke)用(yong)(yong)(yong)(yong)半年以上(shang)(shang);還有(you)用(yong)(yong)(yong)(yong)石棉耐熱硅(gui)酸鹽(yan)作(zuo)升液(ye)(ye)管(guan)(guan),在(zai)(zai)(zai)三班連續作(zuo)業(ye)的(de)(de)(de)(de)情況下(xia),可(ke)使用(yong)(yong)(yong)(yong)4~5個月,效果良(liang)好。