Qhov txawv ntawm induction melting rauv thiab hluav taws xob arc rauv, uas steelmaking zoo dua? Pros thiab cons? …

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

Hluav taws xob arc rauv yog zoo dua induction melting furnaces nyob rau hauv cov nqe lus ntawm kev tshem tawm phosphorus, sulfur thiab oxygen.

2. High rov qab tus nqi ntawm smelted alloy ntsiab

Cov txiaj ntsig ntawm cov ntsiab lus alloying smelted los ntawm induction melting 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 cov ntsiab lus alloy thaum smelting hauv induction melting rauv 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 induction melting rauv. Nyob rau hauv induction melting rauv smelting, nws muaj peev xwm rov qab tau cov alloying ntsiab nyob rau 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. Cov khoom siv hlau rov qab tus nqi ntawm induction melting rauv yog siab dua li ntawm cov hluav taws xob arc rauv thaum rov qab cov khoom yog smelted.

3. Tsawg carbon nce hauv molten steel thaum smelting

Lub induction melting rauv cia siab rau lub hauv paus ntsiab lus ntawm induction cua sov kom yaj tus nqi hlau yam tsis muaj cov pa roj carbon ntau 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, cov hlau molten yuav nce carbon. Raws li ib txwm muaj, thaum smelting high-alloy nickel-chromium steel, qhov tsawg kawg nkaus cov ntsiab lus ntawm cov hluav taws xob arc rauv smelting yog 0.06%, thiab induction melting rauv smelting, nws muaj peev xwm ncav cuag 0.020%. Cov pa roj carbon ntau ntxiv hauv cov txheej txheem hluav taws xob arc rauv smelting yog 0.020%, thiab ntawm qhov induction melting rauv yog 0.010%.

4. Electromagnetic stirring ntawm molten steel txhim kho cov thermodynamic thiab dynamic tej yam kev mob ntawm lub steelmaking txheej txheem Kev txav ntawm cov hlau molten nyob rau hauv induction melting 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 txiaj ntsig tseem tsis zoo li lub qhov cub induction melting.

5. Cov txheej txheem tsis zoo ntawm cov txheej txheem smelting yog yooj yim los tswj. Qhov kub thiab txias, lub sijhawm ua kom zoo, nplawm kev siv zog thiab qhov kub thiab txias ntawm qhov cub induction melting thaum lub sij hawm smelting yog txhua yam yooj yim dua li hluav taws xob arc rauv thiab tuaj yeem nqa tawm txhua lub sijhawm. Vim hais tias cov yam ntxwv saum toj no ntawm lub induction melting rauv, nws occupies ib qho tseem ceeb txoj hauj lwm nyob rau hauv lub smelting ntawm high-alloy steels thiab alloys.