Tuag steel txheej txheem: qhov sib txawv ntawm hluav taws xob rauv thiab electroslag
Cov neeg siv khoom ceev faj feem ntau tawm tsam xaiv cov khoom siv twg yog qhov tsim nyog dua thaum xaiv cov hlau pwm, vim tias tus nqi sib piv thiab qhov zoo dua hauv kev lag luam teb. Qhov tseeb, thaum peb xaiv, ntxiv rau qee cov ntsiab lus tseem ceeb, ib qho tseem ceeb uas yuav tsum tau them sai sai rau yog seb cov khoom puas yog cov khoom siv hluav taws xob hluav taws xob lossis cov hlau electroslag, uas tseem yog qhov tseem ceeb ntawm tsab xov xwm no.
Cia peb nkag siab lub ntsiab lus ntawm ob:
Lub tshuab hluav taws xob hluav taws xob: hais txog cov khoom siv hluav taws xob cua sov kom ua tiav lub hom phiaj txheej txheem (xws li smelting, melting, cua sov, kho cua sov, sintering, ziab, thiab lwm yam).
Electroslag: Electroslag (melting casting) yog lub tshuab ua kom zoo dua qub, cov txheej txheem metallurgical casting txheej txheem sib txuas cov txheej txheem thib ob ntawm cov hlau molten nrog kev taw qhia solidification. Lub hauv paus ntsiab lus yog tias tam sim no dhau los ntawm cov kua slag pas dej ua ke los tiv thaiv tshav kub, yaj cov hlau electrode, thiab cov hlau melted yog sib sau ua ke rau hauv cov yaj yaj, uas dhau los ntawm cov slag txheej rau hauv cov hlau yaj pas dej, thiab tom qab ntawd crystallizes rau hauv cov hlau ingot. hauv dej txias crystallizer.
Los ntawm ob lub ntsiab lus saum toj no, peb nkag siab tias electroslag yog theem thib ob ntawm cov txheej txheem hluav taws xob hauv hluav taws xob, qhov tseeb, ntau cov hlau tsis yog electroslag kev kho tom qab cov txheej txheem hluav taws xob, uas ua rau cov hlau tsis tau ua kom zoo dua qub, thiab tsis tuaj yeem kho. xyuas kom lub purity ntawm hlau.
Lub npe tag nrho ntawm electroslag steel yog electroslag remelting steel, hu ua ESR, raws li lub npe qhia yog qhov yuav tsum tau yaj ob zaug ntawm lub ingot, cov txheej txheem no nyuaj dua li cov hlau hluav taws xob, cov txheeb ze ntawm cov hlau zoo dua, suav nrog. lub purity ntawm hlau.
Ib qho txiaj ntsig tseem ceeb ntawm cov hlau electroslag yog cov hlau tsis muaj hlau sib xyaw hauv cov hlau yog absorbed los ntawm slag, uas yog ib qho tseem ceeb uas hluav taws xob rauv hlau tsis muaj. Cov khoom tsis zoo (sulfur, lead, antimony, bismuth, tin) hauv cov hlau tau raug tshem tawm zoo los ntawm cov tshuaj tiv thaiv steel-slag thiab kub-kub gasification.
Nyob rau tib lub sij hawm, cov kua hlau yog them los ntawm lub pas dej slag, uas yeej tsis reoxidation. Vim nws yog melted, refined thiab solidified nyob rau hauv lub tooj liab dej-txias crystallizer, nws tshem tawm cov pa phem ntawm refractory khoom rau cov hlau. Ua ntej lub ingot solidified, muaj ib tug hlau melting pas dej ua ke thiab slag pas dej ua ke nyob rau hauv lub Upper kawg ntawm lub ingot, uas plays lub luag hauj lwm ntawm tshav kub preservation thiab pub kom lub densification ntawm lub ingot. Lub pas dej slag nce ua ib lub plhaub slag nyias ntawm lub puab phab ntsa ntawm cov pwm, uas tsis tsuas yog ua rau saum npoo ntawm lub ingot smooth, tab sis kuj plays lub luag hauj lwm ntawm insulating thiab tshav kub rwb thaiv tsev, yog li ntawd lub tshav kub yog ua nyob rau hauv lub qis dua, yog conducive rau lub oriented crystallization ntawm lub ingot los ntawm hauv qab mus rau.
Nyob rau hauv cov ntsiab lus, qhov zoo thiab kev ua tau zoo ntawm steel ingot tsim los ntawm electroslag remelting yog txhim kho, lub plasticity thiab cuam tshuam toughness ntawm alloy steel nyob rau hauv qis kub, chav tsev kub thiab kub yog kho kom zoo dua, thiab cov kev pab cuam lub neej ntawm steel yog txuas ntxiv.
