Umqondo ojwayelekile oyisisekelo wei-ferrochrome:

Ikhabhoni ephakathi, ephansi nencanei-ferrochromengokuvamile yenziwe nge-silicochrome alloy, chromite kanye ne-lime njengezinto zokusetshenziswa.Icwengisisiwe futhi yenziwe yisithando somlilo sikagesi esingu-1500 ~ 6000 kV A futhi isetshenziswa yi-high basicity slag yesithando somlilo (i-CaO/SiO2 ingu-1.6 ~ 1.8). Iphansi futhii-micro-carbon ferrochromeibuye ikhiqizwe ngendlela yokuxuba okushisayo ngezinga elikhulu.Izithando zikagesi ezimbili zisetshenziswa ekukhiqizeni, enye isetshenziselwa ukuncibilikisa i-silicon chrome alloy kanye neyokuncibilikisa i-slag eyenziwe nge-chrome ore kanye nomcako.Ukusabela kokucwenga kuhlukaniswe izigaba ezimbili ngamathangi amabili. : (1) Ngemva kokuba i-slag evela esithandweni se-slag ijovwe ethangini lokuqala, ingxubevange ye-silicon chromium ekhishwe i-desilicon ekuqaleni yengezwa kwelinye ithange.Ngenxa yenani elikhulu eleqile le-oxidizing agent ku-slag kanye ne-desiliconization eyanele, i-micro-carbon ferrochrome equkethe i-silicon engaphansi kuka-0.8% kanye ne-carbon ephansi engu-0.02% ingatholakala.② Ngemva kwe-slag (equkethe cishe u-15% Cr2O3) ngemva kwalokho. ukusabela ethangini lokuqala kuthuthelwa ithangi lesibili, ingxubevange ye-silicon chromium (equkethe u-45% we-silicon) elungiselelwe esithandweni sikagesi se-silicon chromium ibaselwa ku-slag.Ngemva kokusabela, ingxubevange ye-silicon chromium (equkethe cishe u-25% we-silicon) eqale yenziwe i-desilical iyatholwa futhi yengezwe ethangini lokuqala ukuze iqhubeke incithakalo.I-slag equkethe ngaphansi kuka-2 ~ 3% Cr2O3 ingalahlwa.

I-carbon ferrochrome ephakathi nendawo nephansi icwengwa ngendlela yokufutha komoyampilo.I-Liquid carbon ferrochrome isetshenziswa njengento eluhlaza.Inani elincane lomcako ne-fluorite lifakwa echibini elincibilikisiwe ukwenza i-slag ngesikhathi sokuphephetha, futhi i-silicon chromium alloy noma i-ferrosilicate yengezwa ngaphambi kokukhipha insimbi ukuze kubuyiselwe i-chromium ku-slag. .

Inqubo ye-vacuum solid-state decarburization ecwengisisiwe, ngokugaya kahle kwe-carbon ferrochrome ephezulu njengento eluhlaza, ukugaya okuhle kwe-carbon ferrochrome ephezulu, ingxenye yokuthoswa kwe-oxidizing njengengilazi ene-oxidant nezamanzi noma ezinye izinto zokunamathisela, ibhola lokucindezela, ngemuva kokoma okushisa okuphansi, uhlobo lwemoto yomlilo, i-vacuum degree ingu-0.5 ~ 10 mm hg, izinga lokushisa elingu-1300 ~ 1400 ℃ lokunciphisa ukushisa ngaphansi kwamahora angu-35 ~ 50, i-Microcarbon ferrochrome equkethe ngaphansi kuka-0.03% carbon noma ngisho nangaphansi kuka-0.01% carbon ingatholakala.

Isampula yokuqinisekisa inqwaba: uma inqwaba ingaphansi kwamathani ayi-10, amasampula angekho ngaphansi kwayi-10 kufanele athathwe ngokungahleliwe ezingxenyeni ezihlukene; izingxenye ezihlukene;Lapho iqoqo lingaphezu kwamathani angu-30, amasampula angekho ngaphansi kuka-30 kufanele athathwe ngokungahleliwe ezingxenyeni ezihlukahlukene.Isisindo sesampula ngasinye kufanele silingane, ubuhlalu baso bungabi ngaphansi kuka-20*20mm.Inani lesampula akufanele libe ngaphansi ngaphezu kuka-0.03% wenkatho.Wonke amasampula athathiwe kufanele aphulwe abe ngaphansi kuka-10mm futhi ahlukaniswe ngekota abe ngu-1-2kg.Ngemuva kokuxuba, kufanele zihlukaniswe zibe izingxenye ezimbili ezilinganayo, eyodwa yokulungiselela isampula kanye neyokugcina.

Ngaphansi kwezimo ezijwayelekile, ukuhlola okuqukethwe kwe-chromium, okulandelwa okuqukethwe kwe-carbon assay, okuqukethwe kwe-chromium ngaphansi kwezimo ezijwayelekile kufanele kube ku-60%±0.5.