保溫爐是一(yi)(yi)臺容量可達600公斤的臥式有鐵芯工(gong)頻(pin)感應電(dian)(dian)(dian)爐,為了(le)便(bian)于控(kong)制爐內熔融金屬的溫度,可以(yi)采用(yong)(yong)調壓(ya)(ya)變壓(ya)(ya)器進(jin)行保溫,但(dan)這種舊式設備(bei)操作麻煩,二來消耗電(dian)(dian)(dian)力多,設備(bei)占用(yong)(yong)面積也大,采用(yong)(yong)可控(kong)硅交流調壓(ya)(ya)器,操作簡單便(bian)利,而且(qie)能節約用(yong)(yong)電(dian)(dian)(dian),一(yi)(yi)臺保溫爐比用(yong)(yong)調壓(ya)(ya)變壓(ya)(ya)器每(mei)晝夜可以(yi)節省300度電(dian)(dian)(dian),又(you)能為生產(chan)自動化創造了(le)條(tiao)件。
另外,由于(yu)升(sheng)液(ye)管(guan)(guan)的(de)(de)(de)工作條(tiao)件惡劣,鑄(zhu)(zhu)造(zao)科技工作者正(zheng)在(zai)尋求更好(hao)的(de)(de)(de)材(cai)料(liao)和合(he)理(li)(li)的(de)(de)(de)措施以(yi)提高其壽(shou)命(ming)(ming)。現有(you)(you)資料(liao)表明:采(cai)用(yong)(yong)含磷2.7%的(de)(de)(de)鑄(zhu)(zhu)鐵(tie)、含銅6.5%的(de)(de)(de)鑄(zhu)(zhu)鐵(tie)、高錳鑄(zhu)(zhu)鐵(tie)或(huo)用(yong)(yong)具(ju)有(you)(you)D型石墨的(de)(de)(de)珠(zhu)光體基(ji)體的(de)(de)(de)孕(yun)育鑄(zhu)(zhu)鐵(tie)鑄(zhu)(zhu)造(zao)升(sheng)液(ye)管(guan)(guan),其壽(shou)命(ming)(ming)可能延長,可用(yong)(yong)120h以(yi)上;有(you)(you)的(de)(de)(de)采(cai)用(yong)(yong)普通鑄(zhu)(zhu)鐵(tie)管(guan)(guan)進行表面滲硫處理(li)(li),在(zai)鋁(lv)液(ye)中的(de)(de)(de)壽(shou)命(ming)(ming)約可提高3倍(bei);有(you)(you)的(de)(de)(de)在(zai)鑄(zhu)(zhu)鐵(tie)管(guan)(guan)表面噴鍍一層三氧化(hua)(hua)二(er)鋁(lv)、氧化(hua)(hua)鋯或(huo)氧化(hua)(hua)鉻等(deng)材(cai)料(liao),升(sheng)液(ye)管(guan)(guan)在(zai)鋁(lv)液(ye)中的(de)(de)(de)壽(shou)命(ming)(ming)可達(da)700h;有(you)(you)的(de)(de)(de)試(shi)用(yong)(yong)氮化(hua)(hua)硅、碳化(hua)(hua)硅或(huo)氧化(hua)(hua)硼等(deng)耐熱陶瓷作升(sheng)液(ye)管(guan)(guan),雖(sui)然成本高,但在(zai)鋁(lv)液(ye)中可用(yong)(yong)半年以(yi)上;還有(you)(you)用(yong)(yong)石棉耐熱硅酸鹽作升(sheng)液(ye)管(guan)(guan),在(zai)三班(ban)連續作業的(de)(de)(de)情(qing)況下,可使(shi)用(yong)(yong)4~5個月,效果良好(hao)。