Dab tsi yog qhov txawv ntawm qhov nruab nrab zaus induction rauv thiab hluav taws xob arc rauv?

Txawm hais tias hluav taws xob arc rauv thiab nruab nrab zaus induction furnaces feem ntau siv cam khwb cia hlau smelting khoom nyob rau hauv factories, intermediate zaus induction furnaces muaj cov yam ntxwv nram qab no nyob rau hauv cov nqe lus ntawm refining muaj peev xwm thiab adaptability piv nrog zoo tib yam hluav taws xob arc furnaces.

1. Cov yam ntxwv ntawm kev ua kom zoo dua qub

Hluav taws xob arc rauv yog zoo dua induction rauv hauv kev tshem tawm phosphorus, sulfur thiab deoxidizing muaj peev xwm. Lub qhov cub induction yog txias slag, thiab lub slag kub yog tswj los ntawm tshav kub los ntawm cov hlau molten. Lub tshuab hluav taws xob arc rauv yog ib qho kub slag, thiab lub slag yog rhuab los ntawm hluav taws xob arc. Dephosphorization thiab desulfurization tuaj yeem ua tiav los ntawm cov slag, thiab cov slag yog tag nrho diffused thiab deoxidized. Yog li ntawd, lub peev xwm ntawm hluav taws xob arc rauv kom tshem tawm phosphorus, sulfur thiab oxygen yog zoo dua li ntawm induction rauv. Cov ntsiab lus nitrogen nyob rau hauv hluav taws xob arc rauv smelting steel yog siab tshaj qhov uas nyob rau hauv induction rauv. Qhov no yog vim hais tias nitrogen molecules nyob rau hauv cov huab cua nyob rau hauv lub kub cheeb tsam ntawm lub arc yog ionized rau hauv atoms thiab ces absorbed los ntawm cov hlau molten. Induction furnace smelting alloy muaj cov ntsiab lus nitrogen tsawg dua li qhov hluav taws xob arc rauv, thiab cov pa oxygen ntau dua li lub tshuab hluav taws xob hluav taws xob, thiab cov hlau muaj lub neej muaj txiaj ntsig ntau dua li hluav taws xob arc rauv.

2. High rov qab tus nqi ntawm smelted alloy ntsiab

Cov txiaj ntsig ntawm cov ntsiab lus alloy smelted los ntawm induction rauv yog siab dua li ntawm hluav taws xob arc rauv. Lub volatilization thiab oxidation poob ntawm cov ntsiab lus yog loj nyob rau hauv lub siab kub ntawm lub arc. Qhov kub poob tus nqi ntawm alloying ntsiab nyob rau hauv induction rauv smelting yog qis dua li ntawm hluav taws xob arc rauv. Tshwj xeeb, qhov kub poob tus nqi ntawm cov ntsiab lus alloy nyob rau hauv cov khoom xa rov qab nrog lub cub tawg yog ntau dua li ntawm qhov cub induction. Hauv qhov cub induction smelting, nws tuaj yeem rov qab tau cov ntsiab lus alloying hauv cov khoom xa rov qab. Thaum lub sij hawm hluav taws xob arc rauv smelting, cov ntsiab lus alloying nyob rau hauv cov khoom xa rov qab yog thawj zaug oxidized rau hauv slag, thiab tom qab ntawd txo los ntawm slag mus rau molten hlau, thiab qhov kub poob tus nqi yog nce ntau.

Thaum xa rov qab cov khoom mus rau smelt, cov khoom alloy rov qab tus nqi ntawm lub induction rauv yog ho siab dua li ntawm cov hluav taws xob arc rauv.

3. Tsawg carbon nce hauv molten steel thaum smelting

Lub qhov cub induction cia siab rau lub hauv paus ntsiab lus ntawm induction cua sov kom yaj cov hlau tsis muaj cov pa roj carbon ntau ntxiv ntawm cov hlau molten. Lub tshuab hluav taws xob arc rauv cia siab rau graphite electrodes kom sov cov nqi los ntawm hluav taws xob arc. Tom qab melting, molten steel yuav nce carbon. Raws li ib txwm muaj, thaum smelting high-alloy nickel-chromium hlau, qhov tsawg kawg nkaus cov ntsiab lus ntawm hluav taws xob arc rauv smelting yog 0.06%, thiab cov induction rauv smelting tuaj yeem ncav cuag 0.020%. Cov pa roj carbon nce hauv cov txheej txheem hluav taws xob arc rauv smelting yog 0.020%, thiab ntawm qhov cub induction yog 0.010%. Tsis yog-nqus nruab nrab zaus induction rauv yog tsim rau smelting low-carbon thiab high-alloy steels thiab alloys.

4. Electromagnetic stirring ntawm molten steel txhim kho cov thermodynamic thiab dynamic tej yam kev mob ntawm lub steelmaking txheej txheem Cov kev txav ntawm molten hlau nyob rau hauv induction rauv yog zoo dua li cov hluav taws xob arc rauv. Lub tshuab hluav taws xob arc rauv yuav tsum tau nruab nrog lub tshuab hluav taws xob tsawg zaus rau lub hom phiaj no, thiab nws cov nyhuv tseem tsis zoo li qhov cub induction. Lub electromagnetic stirring nyhuv nyob rau hauv lub induction rauv pab txhim kho cov tshuaj tiv thaiv kinetic tej yam kev mob thiab txhawb lub homogenization ntawm kub thiab muaj pes tsawg leeg ntawm cov hlau molten. Txawm li cas los xij, kev nplawm ntau dhau yuav tsis muaj txiaj ntsig rau kev tshem tawm cov kev suav nrog thiab ua rau lub qhov cub tawg.

5. Cov txheej txheem tsis zoo ntawm cov txheej txheem smelting yog yooj yim los tswj. Kev tswj ntawm qhov kub thiab txias, lub sijhawm ua kom zoo, nplawm kev siv zog thiab qhov kub thiab txias thaum lub sij hawm induction rauv smelting yog txhua yam yooj yim dua li hluav taws xob arc rauv thiab tuaj yeem nqa tawm txhua lub sijhawm. Vim hais tias lub qhov cub induction muaj cov yam ntxwv saum toj no, nws yog ib qho tseem ceeb ntawm txoj hauj lwm rau comrades nyob rau hauv smelting ntawm high alloy steels thiab alloys. Nws tuaj yeem tsim cov khoom lag luam ntawm nws tus kheej, thiab tseem tuaj yeem ua ke nrog kev ua haujlwm thib ob xws li electroslag remelting thiab nqus tus kheej noj los tsim cov txheej txheem dual rau kev tsim khoom. Yog li ntawd, tsis yog-nqus intermediate zaus induction rauv smelting tau dhau los ua ib qho tseem ceeb smelting txoj kev rau zus tau tej cov steels tshwj xeeb thiab alloys xws li high-speed steel, kub-resistant steel, stainless hlau, electrothermal alloys, precision alloys, thiab high-temperature alloys. , thiab tau siv dav.