Kev lag luam hlau yog lub hauv paus tseem ceeb ntawm kev tsim kho thoob ntiaj teb, tab sis nws ua haujlwm hauv ib qho chaw kub tshaj plaws hauv ntiaj teb. Txij li qhov kub ntawm kev smelting hlau mus rau qhov tseeb ntawm kev casting hlau, cov khoom siv tseem ceeb xws li converters, hluav taws xob arc furnaces, thiab blast furnaces ntsib kev ntxhov siab tsis tu ncua: lawv yuav tsum nyiaj dhau qhov kub thiab txias uas feem ntau tshaj 1,600 ° C, ua ke nrog kev xeb los ntawm molten slag thiab scalding hlau. Cov xwm txheej hnyav no tso cov kev xav tau tsis sib xws rau cov ntaub ntawv refractory - cov txheej tiv thaiv uas tiv thaiv cov khoom siv los ntawm kev puas tsuaj - thiab ntawm txhua txoj kev xaiv,Cov cib magnesium-chromiumtshwm sim ua qhov kev daws teeb meem zoo tshaj plaws thiab txhim khu kev qha.
Cov cib magnesium-chromium muaj peb lub hauv paus tseem ceeb uas tsis muaj lwm tus sib tw hauv kev lag luam hlau vim lawv muaj peb lub hauv paus tseem ceeb, uas daws tau txhua qhov teeb meem loj ntawm kev tsim cov hlau kub siab. Ua ntej, lawv qhov kev tiv thaiv hluav taws zoo heev yog qhov hloov pauv rau kev nyab xeeb thiab kev ua haujlwm zoo: nrog rau qhov ntsuas refractoriness siab dua 1,700 ° C, cov cib no tswj tau lawv cov qauv ruaj khov txawm tias nyob hauv cov hauv paus kub tshaj plaws ntawm cov cub tawg hlau. Tsis zoo li cov khoom siv refractory qis dua uas yuav mos lossis yaj thaum kub heev, cov cib magnesium-chromium tshem tawm qhov kev pheej hmoo ntawm kev ua tsis tiav ntawm cov khoom siv tam sim ntawd, uas tuaj yeem nres cov kab ntau lawm thiab ua rau muaj kev ncua sijhawm kim. Qhov thib ob, lawv qhov kev tiv thaiv slag zoo tshaj plaws daws qhov teeb meem loj tshaj plaws ntawm kev lag luam hlau. Ua los ntawm cov magnesium oxide thiab chromium oxide uas muaj cov khoom siv siab, cov cib no tsim cov khoom thaiv ntom ntom, tsis nkag tau uas tiv thaiv ob qho tib si alkaline thiab acidic slags - cov khoom lag luam ntawm kev tsim cov hlau uas noj cov ntaub linings ib txwm muaj. Qhov kev tiv thaiv no ua rau lub neej ntawm cov ntaub lining hauv lub cub tawg ntev dua 30% lossis ntau dua piv rau cov khoom siv refractories txheem, txo cov nqi hloov pauv ntau zaus thiab txo cov sijhawm tsis tau npaj tseg. Qhov thib peb, lawv qhov kev ruaj ntseg thermal shock zoo heev ua kom muaj kev sib xws thaum lub sijhawm ua haujlwm tseem ceeb. Thaum cov cub tawg pib lossis kaw, qhov kub tuaj yeem hloov pauv ntau pua degrees hauv lub sijhawm luv luv - qhov kev ntxhov siab uas ua rau feem ntau cov cib tawg lossis tawg. Txawm li cas los xij, cov cib magnesium-chromium nqus cov kev hloov pauv no yam tsis muaj kev cuam tshuam, ua rau cov ntaub thaiv tsis hloov pauv thiab kev tsim khoom khiav mus zoo yam tsis muaj kev cuam tshuam.
Cov yam ntxwv zoo kawg no ua rau cov cib magnesium-chromium tsis tseem ceeb rau txhua theem tseem ceeb ntawm kev ua hlau, txij li kev ua cov khoom siv raw mus txog rau qhov kawg casting. Hauv cov converters thiab hluav taws xob arc furnaces, qhov twg hlau raug yaj thiab ua kom zoo, cov cib kab rau sab hauv phab ntsa, nyiaj ncaj qha los ntawm kev sib xyaw cov hlau molten thiab corrosive slag. Kev tiv thaiv no tso cai rau cov cub tawg kom ua haujlwm ntawm qhov ua tau zoo tshaj plaws rau lub sijhawm ntev dua, txhawb cov hlau txhua hnub. Hauv ladles - cov hlab loj uas thauj cov hlau molten los ntawm cov cub tawg mus rau cov tshuab casting - cov cib magnesium-chromium ua haujlwm ua lub liner ruaj khov. Lawv tiv thaiv kev poob cua sov uas yuav ua rau cov hlau zoo thiab thaiv qhov xau, ua kom cov hlau molten mus txog nws theem tom ntej hauv qhov zoo meej rau kev ua tiav downstream xws li dov lossis forging. Txawm tias nyob rau hauv cov cub tawg, lub plawv ntawm kev tsim hlau, cov cib no tiv thaiv cov cheeb tsam sab saud thiab qis tseem ceeb los ntawm kev sib xyaw ua ke ntawm cov roj kub siab (txog li 2,000 ° C) thiab molten slag, tswj kev ua haujlwm ntev, ruaj khov uas yog qhov tseem ceeb rau kev muab hlau tas li.
Rau cov tuam txhab tsim hlau uas xav kom muaj kev tsim khoom ntau ntxiv, txo cov nqi ua haujlwm, thiab tswj kom muaj kev sib tw zoo dua, kev xaiv cov cib magnesium-chromium zoo tsis yog ib qho kev xaiv xwb - nws yog qhov tsim nyog. Peb cov cib magnesium-chromium tau tsim los nrog kev tswj xyuas zoo, siv cov khoom siv raw zoo uas dhau los ntawm kev sim ua kom tau raws li cov qauv kev lag luam thoob ntiaj teb. Tau ntseeg siab los ntawm cov chaw tsim hlau thoob plaws Asia, Tebchaws Europe, thiab North America, peb cov khoom muaj cov ntaub ntawv pov thawj ntawm kev xa cov kev ua tau zoo tas li, txawm tias nyob rau hauv qhov chaw tsim khoom uas xav tau tshaj plaws. Koom tes nrog peb hnub no, thiab cia peb cov kev daws teeb meem hluav taws kub ua tus thawj coj hauv kev lag luam txhawb koj cov txheej txheem ua hlau, txo qis lub sijhawm tsis ua haujlwm, thiab pab koj ua tiav kev loj hlob mus sij hawm ntev.
Lub sijhawm tshaj tawm: Lub Kaum Hli-22-2025
