Cov ntsiab lus ntawm Silicon thiab Iron Balance
FeSi75 muaj qhov nominal 75 feem pua silicon, thiab cov kev lag luam tshwj xeeb feem ntau tso cai rau thaj tsam li ntawm 74 txog 80 feem pua ntau dua li ib daim duab, vim tias qhov cub ua haujlwm thiab cov khoom siv raw ua rau muaj kev sib kis. Hlau ua rau feem ntau ntawm qhov sib npaug, nrog rau qhov seem yog aluminium, carbon, calcium, sulfur thiab phosphorus hauv me me tab sis tseem ceeb. Silicon cov ntsiab lus yog tus nqi uas txiav txim siab deoxidation thiab alloying nyhuv, yog li nws raug kuaj ntawm txhua qhov ntau thiab tau teev nyob rau hauv daim ntawv pov thawj ntawm kev tsom xam. Vim hais tias tus nqi yog ib txwm hais ib tonne ntawm alloy es tsis yog ib chav tsev ntawm silicon muaj, buyers yuav tsum sib piv cov muaj nyob rau hauv silicon hauv paus thiab account rau qhov sib txawv ntawm qhov hnyav ntxiv uas cov ntsiab lus silicon implies.
Aluminium: Qhov tseem ceeb tshaj plaws impurity
Aluminium yog qhov impurity uas feem ntau sib txawv ntawm ib qho FeSi75 los ntawm lwm tus. Cov kev qhia tshwj xeeb feem ntau faib cov qib rau hauv cov chav kawm xws li A, B thiab C, qhov twg chav kawm A tuav cov txhuas ntawm lossis qis dua li ntawm 1.5 feem pua, chav kawm B ntawm lossis qis dua li 2.0 feem pua thiab chav C ntawm qib siab dua. Cov khoom siv aluminium qis yog tsim los ntawm tus nqi huv thiab ua kom muaj nqi. Yog vim li cas nws tseem ceeb yog tias txhuas hloov cov lus teb inoculation hauv cam khwb cia hlau, cuam tshuam rau kev huv ntawm cov hlau uas seem seem ntawm txhuas raug txwv, thiab tuaj yeem cuam tshuam cov neeg suav nrog. Rau kev siv cov inoculant siv, cov ntsiab lus txhuas tswj tau feem ntau yog qhov yuav tsum tau ua hauv nws tus kheej txoj cai, thiab qee cov qib inoculant txhob txwm muaj qib uas tau hais tseg es tsis yog tus nqi qis tshaj plaws.
Carbon, Sulphur, Phosphorus thiab Calcium
Cov pa roj carbon monoxide hauv FeSi75 feem ntau yog nyob ntawm lossis qis dua li ntawm 0.2 feem pua, thiab cov pa roj carbon tsawg yog thov rau cov hlau uas yuav tsum tsis txhob khaws cov pa roj carbon. Sulfur feem ntau yog tswj los ntawm lossis qis dua li 0.02 feem pua thiab phosphorus ntawm lossis qis dua li 0.04 feem pua, vim tias ob qho tib si tsis xav tau hauv cov hlau feem ntau, thiab phosphorus tshwj xeeb tuaj yeem ua rau cov qib siab zog. Calcium tam sim no nyob rau theem qis thiab tuaj yeem hloov kho hauv qib inoculant vim nws cuam tshuam graphite nucleation. Kev sib xyaw ua ke ntawm cov kev txwv no, tsis yog cov ntsiab lus ntawm silicon ib leeg, txhais tau tias yog ib qho FeSi75 haum rau cov qib steel tshwj xeeb lossis kev xyaum ua haujlwm, thiab daim ntawv pov thawj ntawm kev tshuaj xyuas rau txhua qhov ntau yog cov ntaub ntawv uas ua pov thawj ua raws.
Qib Subdivisions thiab Size Bands
Kev xaiv qib yog ib txwm sau nrog cov ntsiab lus silicon thiab chav kawm, piv txwv li FeSi75 nrog cov chav kawm txhuas, thiab cov qauv xws li GB / T 2272 txhais cov kev txwv sib xws. Qhov loj band yog teev nyob rau hauv chemistry, nrog rau kev xaiv ntawm 10 mus rau 50 millimeters, 10 mus rau 100 millimeters, 3 mus rau 10 millimeters thiab hmoov qib. Qhov loj me cuam tshuam rau kev sib cais ntawm cov ladle thiab rov qab ntawm silicon, thiab nws kuj cuam tshuam rau kev tuav thiab plua plav tsim. Ib qho kev faib loj sib xws tseem ceeb npaum li cov chemistry rau cov cwj pwm sib txawv ntxiv, yog li daim ntawv pov thawj ntawm kev soj ntsuam yuav tsum tau nrog los ntawm kev soj ntsuam me me, thiab tus neeg yuav khoom yuav tsum pom zoo qhov feem ntawm cov khoom tsis zoo lossis cov khoom loj loj yog qhov tau txais hauv txhua qhov khoom xa tuaj.
Yuav Ua Li Cas Cov Txheej Txheem Yuav Tsum Tau Paub
Kev coj ua piv txwv thiab kev tshuaj ntsuam xyuas txiav txim siab ntau npaum li cas tus neeg yuav khoom tuaj yeem tso rau hauv daim ntawv pov thawj. Cov qauv yuav tsum tau muab coj los ntawm ntau txoj hauv kev, thiab kev tsom xam yuav tsum npog silicon, aluminium, carbon, sulfur thiab phosphorus yam tsawg kawg nkaus, nrog calcium uas qib yog siv los ua inoculant. Kev pov thawj tuaj yeem ua tau los ntawm tus neeg yuav khoom lossis los ntawm lub chaw soj nstuam ywj pheej ntawm cov qauv khaws cia, thiab qhov tshwm sim piv nrog daim ntawv pov thawj. Rau cov ntawv thov tseem ceeb nws yog ib qho kev xyaum zoo kom pom zoo rau txoj kev tshuaj ntsuam xyuas nrog rau cov kev txwv, vim hais tias cov txheej txheem sib txawv tuaj yeem muab cov txiaj ntsig sib txawv me ntsis ntawm qib impurity tsawg. Cov ntaub ntawv yuav tsum tau khaws cia rau ib qho ntau kom muaj kev cuam tshuam hauv kev sib xyaw tuaj yeem kuaj pom thiab tsa nrog tus muag khoom ua ntej nws cuam tshuam rau kev tsim khoom.
Cov lus nug nquag
Q: Cov tshuaj muaj pes tsawg leeg ntawm ferro silicon 75 yog dab tsi?
Txog 74 mus rau 80 feem pua silicon nrog hlau ua lub ntsiab tshuav nyiaj li cas, txhuas feem ntau ntawm lossis qis dua 1.5 mus rau 2.5 feem pua nyob ntawm chav kawm, carbon ntawm lossis qis dua li ntawm 0.2 feem pua, thiab tsis tshua muaj leej faj thiab phosphorus.
Q: Cov chav kawm A, B thiab C ntawm FeSi75 txhais li cas?
Lawv qhia txog cov ntsiab lus txhuas siab tshaj plaws, yog li chav kawm A yog qhov huv tshaj plaws nyob ib puag ncig 1.5 feem pua lossis qis dua, chav B nyob ib ncig ntawm 2.0 feem pua, thiab chav kawm C ntawm qib siab tsim nyog rau kev siv tsawg dua.
Q: Vim li cas aluminium tswj hauv ferrosilicon?
Aluminium cuam tshuam rau inoculation nyob rau hauv cam khwb cia hlau, steel huv si thiab residual chemistry, yog li foundry thiab tseem ceeb qib qhia nruj nreem aluminium txwv tshaj tej steelmaking qib.
Q: Dab tsi yog cov pa roj carbon, sulfur thiab phosphorus txwv?
Cov pa roj carbon ntawm lossis qis dua li ntawm 0.2 feem pua, sulfur ntawm lossis qis dua li 0.02 feem pua thiab phosphorus ntawm lossis qis dua li 0.04 feem pua yog cov kev txwv ntau hauv cov lus qhia.
Q: Tus qauv twg txhais tau tias FeSi75 muaj pes tsawg leeg?
GB / T 2272 yog dav siv rau ferrosilicon qib muaj pes tsawg leeg thiab subdivisions, thiab ISO 5445 muab cov txheej txheem thoob ntiaj teb rau ferrosilicon.
Q: Yuav ua li cas thiaj paub qhov muaj pes tsawg leeg?
Los ntawm daim ntawv pov thawj ntawm kev txheeb xyuas npog cov ntsiab lus tseem ceeb ntxiv rau cov qauv khaws cia, nrog rau kev kuaj xyuas ywj pheej ntawm qhov xav tau thiab cov ntaub ntawv khaws cia rau ib qho ntau los xyuas kom muaj kev sib tw.