Tsawg-Carbon Ferrochrome yog dab tsi
Tsawg-carbon ferrochrome, feem ntau hu ua LC chrome, yog ferroalloy ntawm chromium thiab hlau tsim los ntawm kev txo cov chromite ore. Nws yog ib qho tseem ceeb raw khoom rau stainless hlau thiab tshwj xeeb alloy steel ntau lawm vim nws ntxiv chromium tsis ntxiv cov pa roj carbon ntau. Cov ntsiab lus ntawm cov pa roj carbon monoxide yog cov ntsiab lus ntawm qib: siab -carbon ferrochrome nqa cov pa roj carbon ntau ntawm 4 mus rau 8 feem pua, thaum qis-carbon ferrochrome tau tuav zoo hauv qab ntawd, feem ntau ntawm 0.25 feem pua lossis tsawg dua, thiab qee qib nce mus txog qis li 0.03 feem pua.
Chromium Cov ntsiab lus
Chromium yog tus nqi tseem ceeb hauv LC chrome, thiab qib kev lag luam ib txwm muaj 55 txog 70 feem pua chromium. Cov qib feem ntau pauv hauv kev ua lag luam muaj txog 60 mus rau 65 feem pua chromium, nrog rau cov seem uas yog hlau thiab me me ntawm impurities. Cov ntsiab lus chromium txiav txim siab npaum li cas alloy yuav tsum tau ntxiv kom ncav cuag lub hom phiaj chromium qib hauv cov hlau kawg, yog li tus neeg yuav khoom yuav tsum lees paub qhov kev lees paub qhov tsawg kawg nkaus chromium tus nqi thiab kev kam rau siab ntawm daim ntawv pov thawj ntawm kev tshuaj xyuas.
Cov pa roj carbon thiab lwm yam impurity txwv
Cov pa roj carbon txwv yog qhov cais LC chrome los ntawm lwm qib ferrochrome. Hauv kev lag luam thoob ntiaj teb, qis-carbon ferrochrome feem ntau txhais los ntawm cov pa roj carbon ntau ntawm 0.10, 0.15 lossis 0.25 feem pua, thiab micro- cov pa roj carbon qib qis mus rau 0.03 feem pua lossis qis dua. Silicon, phosphorus thiab sulfur yog lwm yam kev tswj tsis huv: silicon feem ntau yog li ntawm 0.5 mus rau 3 feem pua nyob ntawm qib, phosphorus raug txwv rau li 0.03 feem pua lossis tsawg dua, thiab leej faj txog li 0.03 feem pua. Suav tus qauv GB / T 5683 rau ferrochromium muab cov qauv siv dav dav, thiab cov neeg yuav khoom yuav tsum qhia meej qhov txwv tsis pub muaj nyob hauv daim ntawv cog lus es tsis yog cia siab rau cov npe qib ib leeg.
Yuav ua li cas LC Chrome yog tsim
Tsawg-carbon ferrochrome tsis tuaj yeem ua los ntawm kev txo qis carbothermic yooj yim hauv submerged arc rauv, vim tias txoj kev ntawd ua rau siab -carbon alloy. Hloov chaw, nws yog tsim los ntawm silicothermic txo: chromium ore yog yaj nrog ferrosilicon lossis silicon -chromium alloy, uas txo cov chromic oxide thaum ua kom cov pa roj carbon tsawg. Qee cov neeg tsim khoom kuj tseem siv cov kauj ruam ua kom zoo nrog cov pa oxygen ua raws li kev kho lub tshuab nqus tsev rau cov qib qis heev. Cov nqi tsim khoom yog li ntawd siab dua rau siab -carbon ferrochrome, uas tau cuam tshuam rau tus nqi ntawm LC chrome.
Tej kev siv
LC chrome yog siv nyob qhov twg lub steelmaker xav tau chromium tsis muaj carbon. Cov qib stainless hlau xws li 304 thiab 316 muaj 18 feem pua chromium thiab li 0.08 feem pua carbon, yog li ntxiv siab -carbon ferrochrome yuav yuam kom cov hlau tsim kom tshem tawm cov pa roj carbon hauv cov kauj ruam decarburisation kim. Siv LC chrome lossis micro-carbon ferrochrome zam qhov teeb meem no thiab yog cov qauv kev coj ua rau austenitic stainless, tshav kub-cov alloys tiv taus, cov cuab yeej steel thiab siab -chromium castings. Cov pa roj carbon tsawg kuj tiv thaiv weldability thiab corrosion kuj ntawm cov khoom kawg.
Yuav Qhia Li Cas LC Chrome
Thaum muas LC chrome, cov lus qhia tshwj xeeb yuav tsum hais txog cov ntsiab lus chromium, cov pa roj carbon siab tshaj plaws, kev txwv rau silicon, phosphorus thiab sulfur, qhov ntau thiab tsawg thiab ntim. Ib qho kev txiav txim zoo yuav qhia chromium 60 feem pua tsawg kawg, carbon 0.10 feem pua siab tshaj plaws, silicon 2 feem pua siab tshaj plaws, phosphorus 0.03 feem pua siab tshaj plaws, sulfur 0.03 feem pua siab tshaj plaws, loj 10 txog 50 millimeters, ntim rau hauv ib lub hnab -tonne. Tus neeg yuav khoom yuav tsum tau thov daim ntawv pov thawj ntawm kev tshuaj xyuas rau txhua qhov ntau thiab pom zoo cov qauv thiab cov qauv ntsuas, feem ntau los ntawm kev siv cov txheej txheem thoob ntiaj teb lossis lub teb chaws.
Cov lus nug nquag
Q: Qhov txawv ntawm LC chrome thiab HC chrome yog dab tsi?
LC chrome, lossis qis-carbon ferrochrome, muaj cov ntsiab lus carbon txog li 0.25 feem pua lossis tsawg dua, thaum HC chrome, lossis siab -carbon ferrochrome, nqa 4 mus rau 8 feem pua carbon.
Q: Ntau npaum li cas chromium nyob rau hauv LC chrome?
Kev lag luam LC chrome feem ntau muaj 55 mus rau 70 feem pua ntawm chromium, nrog cov qib feem ntau ntawm li 60 mus rau 65 feem pua.
Q: Vim li cas cov pa roj carbon tsawg tseem ceeb hauv ferrochrome?
Ntxiv carbon rau stainless hlau degrades corrosion kuj thiab yuav tsum tau ib tug kim decarburisation kauj ruam, yog li steelmakers siv tsawg-carbon ferrochrome ntxiv chromium kom huv si.
Q: Yuav ua li cas qis - carbon ferrochrome ua?
Nws yog tsim los ntawm silicothermic txo ntawm chromite ore nrog ferrosilicon los yog silicon -chromium alloy, uas ua rau cov ntsiab lus carbon tsawg, tsis zoo li carbothermic smelting.
Q: Dab tsi impurities raug tswj hauv LC chrome?
Lub ntsiab tswj impurities yog carbon, silicon, phosphorus thiab sulfur, txhua tus muaj qhov txwv siab tshaj plaws tau pom zoo hauv daim ntawv cog lus yuav khoom.
Q: Cov qib steel twg xav tau LC chrome?
Austenitic stainless hlau xws li 304 thiab 316, tshav kub- cov hlau tsis muaj zog, cov cuab yeej hlau thiab siab -chromium castings feem ntau siv LC chrome los tswj cov pa roj carbon.
