Refine Steel Los ntawm Cored Hlau

Hauv kev lag luam steelmaking, cored hlau ua rau kev sib ntxiv ntawm cov ntaub ntawv metallurgical yooj yim dua thiab siv tau. Nyob rau hauv kev xyaum, ib tug tshwj xeeb hlau feeder vertically inserts lub cored hlau rau molten hlau los yog hlau. Thaum qhov xav tau qhov tob mus txog, cov hlau cored thiab cov khoom siv metallurgical nws encases tag nrho yaj thiab undergo ib cov tshuaj tiv thaiv. Txoj kev no zoo cais cov ntsiab lus ntxiv los ntawm kev sib cuag thiab cov tshuaj tiv thaiv nrog huab cua thiab slag, txhim kho qhov nqus thiab siv tus nqi ntawm cov ntaub ntawv metallurgical. Tsis tas li ntawd, cored hlau kuj tseem muaj ntau yam txiaj ntsig, suav nrog kev ua kom zoo dua qub thiab ua kom zoo dua qub, ua kom zoo dua qub, kho cov alloying, thiab purifying molten steel. Cov txiaj ntsig zoo no pab cov tuam txhab txhim kho qhov zoo ntawm cov cam khwb cia hlau thiab cam khwb cia steel khoom, txo cov nqi smelting thiab casting, thiab txhim kho kev lag luam kev lag luam.

    I. Txoj Kev Npaj

Cored hlau yog cov khoom sib xyaw. Thaum lub sij hawm npaj, deoxidizers, desulfurizers, modifiers, alloying agents, thiab lwm yam additives yog thawj zaug crushed rau ib tug me me particle. Tom qab ntawd, txias- dov qis- cov pa roj carbon steel sawb yog siv los ua cov hlau sheath los qhwv cov khoom siv hauv cov hmoov no, ua cov hlau ntawm txhua qhov ntev. Nws cov khoom tseem ceeb muaj ib tug sib xws muaj pes tsawg leeg thiab siab filling tus nqi. Cov khoom tiav yog ntim nrog kab rov tav lossis ntsug winding txoj kev, nrog ob hom ntim: sab hauv kais hom thiab lwm yam kais dej.

II. Kev Ua Haujlwm Zoo

Precise Composition Control: Ua kom yooj yim rau kev hloov kho thiab tswj cov ntsiab lus ntawm cov ntsiab lus oxidized yooj yim thiab cov kab ke, ua kom muaj kev tswj xyuas meej ntawm cov hlau los yog hlau, txhim kho alloy yield, txo cov alloy noj, thiab txo cov nqi smelting thiab casting.

Kev Txhim Kho Hlau Zoo: Nws tuaj yeem ua kom huv si molten steel, ib feem hloov cov khoom thiab cov qauv ntawm cov khoom siv, thiab txhim kho steel zoo thiab castability los ntawm kev hloov kho thiab refining slag tswj, yog li txhim kho lub xeev casting thiab thaum kawg txhim kho cov hlau los yog cam khwb cia hlau.

Kev ua haujlwm yooj yim thiab ua haujlwm tau zoo: Cov cuab yeej siv tshuab xav tau rau kev pub hlau yog yooj yim thiab txhim khu kev qha, nyob hauv qhov chaw me me. Cov hlau txuas sab hauv, tshwj xeeb, yog qhov zoo - haum rau qhov chaw kaw. Thaum siv, cov hlau yog vertically ntxig rau hauv cov hlau molten mus rau qhov xav tau qhov tob uas siv cov hlau feeder, tso cai rau cov khoom tseem ceeb kom yaj tag nrho thiab hnov ​​​​mob. Qhov no tsis txhob muaj kev cuam tshuam ntawm cov ntsiab lus ntxiv thiab huab cua lossis slag, ntxiv txhim kho cov khoom nqus thiab ua kom lub sijhawm smelting luv.

Yooj yim cia thiab siv: Nws yog ib qho yooj yim rau khaws cia, zoo txo ​​qhov poob thaum lub sij hawm cia, thiab tso cai rau kom yooj yim ntxiv ntawm metallurgical cov ntaub ntawv rau molten hlau thaum lub sij hawm steelmaking thiab casting txheej txheem.

    III. Cov cheeb tsam thov

Feem ntau siv hauv steelmaking thiab casting industries, nws cov haujlwm tseem ceeb suav nrog:
**Steelmaking:** Nws ua rau deoxidation, desulfurization (sulfur tswj), alloying, thiab refining. Nws tshem tawm cov pa oxygen thiab sulfur los ntawm cov hlau molten, txo cov impurities; ntxiv alloying ntsiab xws li calcium, txhuas, thiab titanium, txhim kho cov hlau lub zog, ductility, thiab corrosion kuj; nws kuj hloov cov duab thiab kev faib tawm ntawm cov khoom tsis yog -cov khoom siv hlau hauv cov hlau, txhim kho nws cov tawv thiab corrosion kuj; ib txhij, nws tswj cov muaj pes tsawg leeg ntawm refining slag, txhawb slag fluidity thiab zoo absorbing impurities, thaum kawg txhim kho cov anisotropy ntawm cov hlau, txo nozzle blockage, thiab xyuas kom meej stability ntawm cov hlau muaj pes tsawg leeg.

** Casting: ** Haum rau spheroidizing thiab inoculation kev kho mob ntawm cam khwb cia hlau. Piv txwv li, nyob rau hauv ductile hlau ntau lawm, ntxiv magnesium cored hlau ntaub ntawv spheroidal graphite nodules, txhim kho cov ductility thiab lub zog ntawm cam khwb cia hlau; nws kuj ua kom huv si molten hlau, txhim kho casting zoo, thiab pab manufacturers txhim khu lub zoo ntawm cam khwb cia hlau thiab cam khwb cia hlau cov khoom, yog li ua rau cov nyiaj txiag kev pab cuam.

** Casting: ** Muaj feem xyuam rau spheroidizing thiab inoculation kev kho mob ntawm cam khwb cia hlau. Piv txwv li, nyob rau hauv ductile hlau ntau lawm, ntxiv magnesium cored hlau ntaub ntawv spheroidal graphite nodules, txhim kho cov ductility thiab lub zog ntawm cam khwb cia hlau; nws kuj purifies molten hlau, txhim kho casting zoo, thiab pab manufacturers txhim kho qhov zoo ntawm cam khwb cia hlau thiab cam khwb cia hlau cov khoom, nce economic efficiency. Feem ntau hom cored hlau muaj xws li silicon-calcium cored hlau, titanium- hlau cored hlau, boron- hlau cored hlau, silicon{5}} txhuas-barium-calcium cored hlau, hlau magnesium cored hlau, thiab carbon hlau. Ntau hom cored xov hlau muaj kev siv sib txawv thiab cov teebmeem, thiab hom tsim nyog yuav tsum tau xaiv raws li qhov xav tau tiag tiag.