Ingqiqo esisiseko yei-ferrochrome:

Phakathi, ephantsi kunye ne-micro carboni-ferrochromeyenziwe ngokubanzi nge-silicochrome alloy, chromite kunye nekalika njengemathiriyeli ekrwada.Isulungekisiwe kwaye yenziwe i-desilicated ngesithando sombane se-1500 ~ 6000 kV A kwaye siqhutywa yi-basicity high slag ye-furnace (CaO/SiO2 yi-1.6 ~ 1.8) .i-carbon ferrochrome encinciiveliswa kwakhona yindlela yokuxuba eshushu kumlinganiselo omkhulu.Iziko zombane ezimbini ezisetyenziswa kwimveliso, enye yeyokunyibilikisa isilicon chrome ingxubevange kunye nenye i-smelting slag eyenziwe nge-chrome ore kunye nekalika. : (1) Emva kokuba i-slag evela kwiziko le-slag ifakwe kwitanki yokuqala, i-silicon chromium alloy eqale yenziwa i-desiliconized yongezwa kwenye itanki.Ngenxa yobuninzi obuninzi be-oxidizing agent kwi-slag kunye ne-desiliconization eyaneleyo, i-micro-carbon ferrochrome equkethe i-silicon engaphantsi kwe-0.8% kwaye iphantsi njenge-0.02% yekhabhoni ingafumaneka.② Emva kwe-slag (equlethe malunga ne-15% Cr2O3) emva impendulo kwitanki yokuqala ifuduselwe kwitanki yesibini, isilicon chromium ingxubevange (equlathe 45% lesilicon) elungiswe kwisilicon chromium eziko lombane ifudunyezwa kwi slag.Emva kokusabela, i-silicon chromium alloy (equlathe malunga ne-25% yesilicon) eqale yenziwe i-desilicated ifunyenwe kwaye yongezwa kwitanki yokuqala ukuze idilizwe ngakumbi.I-slag equlethe ngaphantsi kwe-2 ~ 3% ye-Cr2O3 inokulahlwa.

I-carbon ferrochrome ephakathi kunye nephantsi icokiswa ngendlela yokuvuthela i-oxygen.Ulwelo lwekhabhoni yeferrochrome isetyenziswa njengemathiriyeli ekrwada.Inani elincinci lekalika kunye nefluorite zongezwa kwidama elityhidiweyo ukwenza i-slag ngexesha lokuvuthela, kunye ne-silicon chromium alloy okanye i-ferrosilicate yongezwa ngaphambi kokutsalwa kwentsimbi ukubuyisela i-chromium kwi-slag. .

Inkqubo ye-vacuum solid-state decarburization isulungekisiwe, kunye nokusila okuphezulu kwekhabhoni yeferrochrome njengezinto ezikrwada, ukucolwa kakuhle kwekhabhoni ephezulu ye-ferrochrome, inxenye ye-oxidizing yokurosa njenge-oxidant kunye neglasi yamanzi okanye ezinye izinto zokuncamathelisa, ibhola yoxinzelelo, emva kokumiswa kobushushu obuphantsi, uhlobo lwemoto yokucoca isithando somlilo, idigri yevacuum yi-0.5 ~ 10 mm hg, ubushushu be-1300 ~ 1400 ℃ yokunciphisa ukufudumeza ngaphantsi kwe-35 ~ 50 iiyure, iMicrocarbon ferrochrome equlethe ngaphantsi kwe-0.03% yekhabhoni okanye ngaphantsi kwe-0.01% yekhabhoni inokufumaneka.

Iisampulu zokuqinisekisa ngobuninzi: xa ibhetshi ingaphantsi kweetoni ezili-10, akukho ngaphantsi kweetoni ezili-10 kufuneka zithathwe ngokungenamkhethe kwiindawo ezahlukeneyo; iindawo ezahlukeneyo;Xa ibhetshi ingaphezulu kweetoni ezingama-30, akukho ngaphantsi kweetoni ezingama-30 kufuneka zithathwe ngokungakhethiyo kwiindawo ezahlukeneyo.Ubunzima besampulu nganye kufuneka bulingane ngokulingana, ubuncinci bayo bungabi ngaphantsi kwe-20*20mm. ngaphezu kwe-0.03% yeqashiso.Zonke iisampuli ezithathiweyo kufuneka zophulwe zibe ngaphantsi kwe-10mm kwaye zihlukaniswe ngekota ukuya kwi-1-2kg.Emva kokuxuba, kufuneka bahlulwe babe ngamacandelo amabini alinganayo, enye yokulungiswa kwesampuli kunye neyokugcina.

Kwiimeko eziqhelekileyo, kukujonga umxholo wechromium, ulandelwa ngumxholo we-carbon assay, umxholo we-chromium phantsi kweemeko eziqhelekileyo kufuneka ube kwi-60% ± 0.5.