保溫爐是一臺容量可(ke)達600公斤(jin)的臥式有鐵芯工頻感(gan)應電爐(lu),為了(le)便于控制爐(lu)內(nei)熔(rong)融金屬的溫度,可(ke)以采用(yong)(yong)調壓(ya)變壓(ya)器(qi)進行保(bao)溫,但這種(zhong)舊式設備操作(zuo)麻煩,二來消耗電力多,設備占用(yong)(yong)面積也大,采用(yong)(yong)可(ke)控硅交流調壓(ya)器(qi),操作(zuo)簡(jian)單(dan)便利,而且能(neng)節(jie)約用(yong)(yong)電,一臺保(bao)溫爐(lu)比用(yong)(yong)調壓(ya)變壓(ya)器(qi)每晝夜可(ke)以節(jie)省(sheng)300度電,又(you)能(neng)為生產自動化創造了(le)條件。
另外,由于(yu)升(sheng)液(ye)管(guan)(guan)的工(gong)(gong)作(zuo)條件(jian)惡劣,鑄(zhu)造(zao)科技工(gong)(gong)作(zuo)者正(zheng)在尋求更好的材料和合(he)理(li)的措施以(yi)(yi)提(ti)高(gao)其壽命(ming)(ming)。現有(you)(you)資料表明:采(cai)用(yong)(yong)含(han)磷2.7%的鑄(zhu)鐵(tie)、含(han)銅6.5%的鑄(zhu)鐵(tie)、高(gao)錳鑄(zhu)鐵(tie)或(huo)用(yong)(yong)具有(you)(you)D型石墨的珠光體基體的孕育鑄(zhu)鐵(tie)鑄(zhu)造(zao)升(sheng)液(ye)管(guan)(guan),其壽命(ming)(ming)可(ke)能延長,可(ke)用(yong)(yong)120h以(yi)(yi)上(shang);有(you)(you)的采(cai)用(yong)(yong)普通鑄(zhu)鐵(tie)管(guan)(guan)進行表面滲硫處理(li),在鋁(lv)液(ye)中(zhong)的壽命(ming)(ming)約可(ke)提(ti)高(gao)3倍;有(you)(you)的在鑄(zhu)鐵(tie)管(guan)(guan)表面噴鍍一(yi)層(ceng)三氧(yang)化二鋁(lv)、氧(yang)化鋯或(huo)氧(yang)化鉻等(deng)材料,升(sheng)液(ye)管(guan)(guan)在鋁(lv)液(ye)中(zhong)的壽命(ming)(ming)可(ke)達700h;有(you)(you)的試用(yong)(yong)氮化硅、碳化硅或(huo)氧(yang)化硼等(deng)耐熱陶(tao)瓷作(zuo)升(sheng)液(ye)管(guan)(guan),雖然(ran)成本高(gao),但在鋁(lv)液(ye)中(zhong)可(ke)用(yong)(yong)半(ban)年以(yi)(yi)上(shang);還(huan)有(you)(you)用(yong)(yong)石棉耐熱硅酸鹽作(zuo)升(sheng)液(ye)管(guan)(guan),在三班連續作(zuo)業的情況下,可(ke)使用(yong)(yong)4~5個月(yue),效果良好。