Khoom Description
Qhov tshwm sim ntawmvanadium nitrogen alloysyog undoubtedly ib tug tseem ceeb breakthrough nyob rau hauv lub tshav pob ntawm hlau metallurgy. Nws daim ntawv thov tau qhib txoj hauv kev tshiab rau kev sib xyaw ua ke ntawm vanadium thiab nitrogen.
Piv nrog rau cov tshuaj vanadium hlau alloying txoj kev, vanadium nitrogen alloying nthuav tawm qhov tshwj xeeb zoo. Nws tuaj yeem ua tiav nitrogen ntxiv thaum ntxiv vanadium, uas daws tau qhov teeb meem ntawm qhov nyuaj nitrogen ntxiv uas tau ua phem rau kev lag luam yav dhau los. Qhov no zoo li qhib lub qhov rooj tshiab rau steel alloying, tso cai rau peb pom ntau qhov muaj peev xwm thiab qhov chaw loj hlob.
Los ntawm kev sim ntau thiab kev xyaum tsim khoom, peb tau pom meej tias nws cov teebmeem tseem ceeb. Thaum siv nws, txhua 0.01% nce hauv V tuaj yeem nce nitrogen li ntawm 10ppm. Qhov no yog cov ntaub ntawv zoo heev uas qhia tau hais tias muaj peev xwm muaj zog ntawm nws hauv nitrogen ntxiv. Lub vanadium nitrogen alloy tsim los ntawm Panzhihua Hlau thiab hlau muaj kev ua tau zoo, nrog rau vanadium rov qab tus nqi ntau dua 90% thiab cov nitrogen rov qab li ntawm 70%. Cov txiaj ntsig siab no muab lub hauv paus ruaj khov rau kev ruaj ntseg thiab kev ruaj ntseg ntawm cov hlau ntau lawm.
Nitrogen-nce nyhuv ntawm VN alloy
Raws li kev hloov pauv smelting tej yam kev mob, qib nitrogen cov ntsiab lus hauv cov hlau feem ntau nyob hauv thaj tsam ntawm 40-60ppm. Txawm li cas los xij, thaum sib piv vanadium nitrogen alloying nrog siab vanadium hlau alloying, nrog tib tus nqi ntawm cov hlau ntxiv, cov ntsiab lus nitrogen hauv cov hlau feem ntau tuaj yeem ncav cuag 80ppm. Qhov kev sib piv no qhia meej txog qhov ua tau zoo ntawm vanadium nitrogen alloying hauv nitrogen ntxiv, thiab nws cov txiaj ntsig tuaj yeem piav qhia tias tseem ceeb heev.
Lub realization ntawm no nitrogen nce nyhuv tsis tsuas yog coj tshiab lub cib fim rau kev txhim kho cov kev ua tau zoo ntawm steel, tab sis kuj txhaj tshuaj tshiab tseem ceeb rau txoj kev loj hlob ntawm steel kev lag luam. Nws tso cai rau peb kom tswj tau cov ntsiab lus ntawm cov hlau, yog li ua tiav qhov kev ua kom zoo ntawm cov khoom steel. Piv txwv li, nyob rau hauv qee qhov kev thov uas yuav tsum tau muaj lub zog siab thiab tawv, los ntawm kev siv cov nitrogen ua kom muaj txiaj ntsig zoo ntawm nws, cov hlau ua tau zoo dua tuaj yeem ua tau raws li qhov yuav tsum tau ua.
Tsis tas li ntawd, cov txiaj ntsig nitrogen nce ntxiv ntawm nws kuj tseem muab qhov chaw tshawb fawb dav dav rau cov kws tshawb fawb. Lawv tuaj yeem tshawb nrhiav cov txheej txheem tshwj xeeb ntawm nitrogen enrichment thiab yuav ua li cas kom zoo dua siv cov nyhuv no los txhim kho kev ua haujlwm ntawm cov hlau. Nyob rau tib lub sijhawm, kev tshawb fawb tseem tuaj yeem ua tiav ntawm nitrogen nce cov txiaj ntsig ntawm nws nyob rau hauv cov qib steel sib txawv thiab cov txheej txheem ntau lawm, muab kev txhawb nqa theoretical ntau ntxiv rau kev tsim kho thev naus laus zis thiab kev txhim kho hauv kev lag luam steel.
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