Mfundo wamba wamba waferrochrome:

Sing'anga, otsika ndi micro carbonferrochromenthawi zambiri amapangidwa ndi aloyi ya silicochrome, chromite ndi laimu ngati zida.Imayengedwa ndikupangidwanso ndi ng'anjo yamagetsi ya 1500 ~ 6000 kV A ndipo imayendetsedwa ndi ng'anjo yapamwamba kwambiri (CaO/SiO2 ndi 1.6 ~ 1.8) .microcarbon ferrochromeimapangidwanso ndi njira yosakanikirana yotentha pamlingo waukulu.Nng'anjo ziwiri zamagetsi zimagwiritsidwa ntchito popanga, imodzi yosungunula silicon chrome alloy ndi ina yosungunula slag yopangidwa ndi chrome ore ndi laimu.Kuyenga kumagawidwa m'magawo awiri muakasinja awiri. : (1) Pambuyo pa slag yochokera ku ng'anjo ya slag itayikidwa mu thanki yoyamba, alloy ya silicon chromium yomwe poyamba idapangidwa kuti ikhale desiliconized imawonjezeredwa mu thanki ina.Chifukwa cha kuchuluka kwakukulu kwa oxidizing wothandizira mu slag ndi desiliconization yokwanira, ferrochrome yaying'ono yokhala ndi silicon yochepera 0.8% komanso yotsika ngati 0.02% ya kaboni imatha kupezeka.② Pambuyo pa slag (yokhala ndi 15% Cr2O3) pambuyo pake. Zomwe zimachitikira mu thanki yoyamba zimasunthidwa ku thanki yachiwiri, silicon chromium alloy (yokhala ndi 45% silicon) yokonzedwa mu ng'anjo yamagetsi ya silicon chromium imatenthedwa mu slag.Pambuyo pochitapo kanthu, aloyi ya silicon chromium (yokhala ndi 25% ya silicon) yomwe imapangidwa poyambira imapangidwa ndikuwonjezeredwa mu thanki yoyamba kuti iwonongeke.Slag yomwe ili ndi zosakwana 2 ~ 3% Cr2O3 ikhoza kutayidwa.

Mpweya wapakati ndi wotsika wa carbon ferrochrome umayengedwa ndi njira yowombera mpweya.Madzi a carbon ferrochrome amagwiritsidwa ntchito ngati zopangira.Laimu pang'ono ndi fluorite amawonjezedwa ku dziwe losungunuka kuti apange slag powomba, ndipo silicon chromium alloy kapena ferrosilicate amawonjezeredwa asanatulutse chitsulo kuti abwezeretse chromium mu slag. .

Vacuum olimba-boma decarburization ndondomeko woyengedwa, ndi akupera wabwino wa mkulu mpweya ferrochrome monga zopangira, ndi akupera wabwino wa mkulu mpweya ferrochrome, mbali ya oxidizing Kukuwotcha monga okosijeni ndi madzi galasi kapena zomatira, kuthamanga mpira, pambuyo otsika kuyanika kutentha, ng'anjo yamoto yamtundu wa galimoto, digiri ya vacuum ndi 0.5 ~ 10 mm hg, kutentha kwa 1300 ~ 1400 ℃ kuchepetsa kutentha kwa maola 35 ~ 50, Microcarbon ferrochrome yomwe ili ndi mpweya wochepera 0.03% kapena ngakhale wochepera 0.01% wa carbon ukhoza kupezedwa.

Zitsanzo zotsimikizira zambiri: ngati batch ili yosakwana matani 10, zitsanzo zosachepera 10 ziyenera kutengedwa kuchokera kumadera osiyanasiyana; magawo osiyanasiyana; Mtolo ukakhala woposa matani 30, zitsanzo zosachepera 30 ziyenera kutengedwa kuchokera kumadera osiyanasiyana. kuposa 0.03% ya maere.Zitsanzo zonse zotengedwa ziyenera kuthyoledwa mpaka zosakwana 10mm ndi kugawa magawo atatu mpaka 1-2kg.Pambuyo posakaniza, ziyenera kugawidwa m'magawo awiri ofanana, imodzi yokonzekera zitsanzo ndi ina yosungira.

Nthawi zonse, ndikuwunika zomwe zili mu chromium, ndikutsatiridwa ndi zomwe zili mu carbon assay, zomwe zili mu chromium nthawi zonse ziyenera kukhala 60% ± 0.5.