Qhov kev txiav txim ntawm kev ntxiv ferrroalloys yog raws li hauv qab no: Ua ntej, ferrroalloys nrog lub peev xwm tsis muaj peev xwm ntxiv, thiab tom qab ntawd {}} nrog lub peev xwm muaj peev xwm muaj zog. Alloys feem ntau tau ntxiv tom qab kev tshem tawm slag, lub chaw ua haujlwm carburizing ua tiav, thiab qee qhov slag ntxiv los tsim cov slag. Qhov yuav tsum tau ua rau ntxiv ntau yam alloys muaj raws li hauv qab no:
(1) ntxiv ntawm ferrosilicon
Thaum smelting silicon steel, caij nplooj ntoos hlav steel thiab kub-resist hlau hlau, ntau npaum li cas ntawm ferrosilicon yuav tsum tau ntxiv rau kev siv hluav taws xob, thiab ntxiv rau ferrosilicon yuav tsum raug rho tawm liab-kub ntev. Qhov laj thawj tseem ceeb yog tias ferrosilicon muaj ntau ntawm hydrogen, uas tuaj yeem tshem tawm tom qab ci liab kub, thiab preheating ferrosilicon kuj tseem tuaj yeem tau melting; Ib qho ntxiv, txij li Ferrosilicon yog lub teeb, thaum muaj ntau tus ferrosilicon tau ntxiv rau cov khoom tawg, uas txo cov pob zeb acidic, uas ua rau muaj kev sib tw hauv zos, uas tsis zoo rau qhov zoo ntawm cov hlau. Txhawm rau tiv thaiv qhov no los ntawm kev tshwm sim, ua ntej thiab tom qab kev ntxiv cov txiv qaub yuav tsum tau siv rau ob peb feeb kom tso cai rau yaj thiab cuam tshuam rau hauv homogeneous dawb slag. Qib ntawm ferrosilicon extraction li ntawm 90 txog 98%.
Thaum ua kom zoo, thaum cov tshuaj chemistry raug kho, qhov kub yog tsim nyog thiab lub ntsej muag ci yog qhov zoo, ferrosilicon tuaj yeem ntxiv. Ib zaug ntxiv, cov hlau tuaj yeem muab hliv rau hauv 10-25 feeb. Yog hais tias lub sijhawm luv luv heev, Ferrosilicon yuav tsis muaj sijhawm los ua kom tiav thiab cov silicon yuav tsis muaj cov hlau cuav. Yog tias lub sijhawm ntev dhau, Molten Steel yuav yooj yim nqus roj, uas yuav cuam tshuam qhov zoo ntawm cov hlau.
(2) ntxiv ntawm ferromanganese
Ferromanganese tuaj yeem ntxiv thaum ua kom poob qis. Manganese cov ntsiab lus feem ntau yog tswj hwm ntawm cov ntsiab lus qis rau thawj zaug. Cov qib ntawm ferromanganese extraction yog ntau tshaj 95%.
(3) Ntxiv rau tooj liab
Hauv cov huab cua hlau smelting, lub tooj hauv cov hlau tuaj yeem txhim kho cov tawv nqaij tawv thiab xeb tsis kam ntawm cov hlau. Tooj liab hauv steel tsis yooj yim oxidized, yog li nws tuaj yeem raug ntxiv thaum lub sijhawm puv lossis oxidation kuj ruaj khov thiab yog ntau tshaj 95%. Vim tias tooj liab kim, nws feem ntau yog ib feem zoo ntxiv rau ib feem ntawm tooj liab-bearing hlau scrap lossis tooj liab-tooj liab-bearing steel scrap los yog tooj liab-tooj liab-bearing steel scrap lossis tooj liab-tooj liab-bearing steel scrap lossis tooj liab-bearing steel scrap lossis tooj liab-tooj liab-bearing steel scrap lossis tooj liab-tooj liab-bearing rau lub sijhawm rov qab los txo tus nqi kho kom ceev faj.
(4) ntxiv ntawm ferriorome
Ferrochromium feem ntau ntxiv thaum pib ntawm lub sijhawm txo. Chromium muaj kev sib txawv ntau dua rau cov pa luam dua hlau, uas txhais tau tias chromium yog yooj yim dua oxidized dua li cov hlau. Yog tias ntxiv thaum lub sij hawm melting thiab oxidation, cov chromium yuav tsis tsuas yog ua rau cov khoom poob, tab sis kuj tseem cuam tshuam rau kev ua haujlwm ntawm kev ua haujlwm thiab cov haujlwm smelting. Yog li ntawd, ferrroidrome yuav tsum tau ntxiv thaum lub sijhawm rov qab. Yog hais tias lub shag hloov ntsuab tom qab ntxiv, qhov no txhais tau tias lub shell tsis zoo deoxidized. Txo yuav tsum tau txhim kho kom txo cov cov ntsiab lus chromium oxide cov ntsiab lus hauv slag. Tom qab txo qhov zoo, lub shrag yuav tig dawb. Tus nqi rov qab ferrrochrome rov qab ntau dua 95% raws li cov xwm txheej ntawm kev swb dawb thaum lub sijhawm rov qab.
(5) ntxiv ntawm ferrovanadium
Ferrovanadium yuav tsum tau ntxiv thaum lub sijhawm rov qab. Vanadium muaj ib qho siab heev rau cov pa thiab yog yooj yim oxidized. Yog li ntawd, nws tsis tuaj yeem raug ntxiv thaum lub sijhawm oxidation. Nws tsuas yog ntxiv rau lub sijhawm rov qab los tom qab cov nplais uas tsis sib luag Vim tias thaum ferrovanadium ntxiv, Molten steel yooj yim nqus nitrogen nyob rau hauv huab cua, uas cuam tshuam tsis tau ntau dhau lawm, tab sis tsuas yog ua ntej cov hlau melted. Txawm li cas los xij, ferrovanadium yuav siv sij hawm ntawm lub sijhawm los ua kom yaj, yog li nws yuav tsum tau ntxiv 10 {{}} 35 feeb ua ntej muab cov hlau. Thaum tus nqi ntawm Ferrovanadium yog me me, lub sijhawm yuav tsum tau tswj hwm raws li qhov qis dua, thiab thaum lub sijhawm yuav tsum tau tswj raws li lub sab saud thiab nruab nrab. Tus nqi ntawm kev txo ntawm ferrovanadium yog ze rau tus nqi ntawm kev txo ntawm ferrosilicon.
(6) ntxiv ntawm ferromolybdenum
Ferromolybdenum yog ib qho kev txhim kho refractory. Nws yog feem ntau ntxiv thaum pib ntawm lub sijhawm txo los ua kom tiav melting thiab kev sib xyaw ua ke. Yog tias nws tau ntxiv tom qab, hauv ob peb feeb ntawm nchuav cov hlau, cov ferromolybdenum yuav tsis muaj rau kev faib tawm tsis sib xws hauv Molten Steel thiab nce nyob rau lub sijhawm melting. Rerromolybdenum Rov qab cov nqi ib txwm muaj ntau tshaj li 98%.
(7) ntxiv ntawm ferrroniobium
Niobium - yog ib qho keeb kwm nrog lub zog tsis muaj pa rau oxygen, ua rau nws yooj yim rau kev tswj hwm thiab tus tswv thaum lub sij hawm smelting. Nws yog feem ntau ntxiv thaum pib ntawm lub sijhawm txo, thiab cov hlau tuaj yeem raug muab tshuaj txhuam 20 feeb tom qab ntxiv melting txawm melting. Yog tias cov qauv tsis-oxidizing yog siv rau smelting, Niobium kuj tseem tuaj yeem ntxiv thaum thauj khoom. Niobium rov qab cov nqi ib txwm tshaj 95%.
(8) ntxiv ntawm ferroungsten
Ferrotungsten yog tus cwj pwm los ntawm kev ntom siab thiab melting point. Ib zaug ntxiv, nws muab rau hauv qab ntawm qhov cub thiab tsis yaj yooj yim. Piv rau npib tsib xee thiab molybdenum, tungsten muaj ib qho zoo dua ib qho rau cov pa oxygen. Yog tias ntxiv thaum lub sijhawm smelting, tungsten yuav oxidize thiab muaj nyob rau hauv lub ntsej muag ua calcium tungstat, uas ua rau tswj tau lub tungsten muaj pes tsawg leeg. Yog li ntawd, F Ferrolotungsten yuav tsum tau ntxiv thaum pib ntawm lub sijhawm txo thiab tsis tuaj yeem ntxiv thaum lub sijhawm smelting lossis qeeb ua kom zoo dua lub sijhawm. Txij li thaum ferrolotungsten yog qhov nyuaj rau yaj ntau ntawm nws nyob rau lub sijhawm rov qab kho dua tshiab yuav cuam tshuam nrog cov hlau tsis sib luag hauv cov hlau molten. Feem ntau ntawm ferrotungsten yuav tsum tau ntxiv thaum pib ntawm lub sijhawm rov qab, tawm tsuas yog ib qho nyiaj me me rau kev hloov kho thaum lub sijhawm rov qab. Tsis tas li ntawd, Ferrotungsten ntxiv yuav tsum yog me me nyob rau hauv loj me thiab yuav tsum tau raug rho tawm liab-kub kom tswj tau melting. Tus nqi rov qab ntawm ferrotungsten feem ntau tau tshaj 95%.