Recarburizerrau steelmaking nrog recarburizer (ferrous metallurgy kev lag luam tus qauv ntawm Tuam Tshoj lub koom pheej ntawm Tuam Tshoj, YB / T 192-2001 steelmaking nrog recarburizer) thiab cam khwb cia hlau nrog recarburizer, thiab lwm yam ntxiv cov ntaub ntawv kuj tseem ceeb rau recarburizer, xws li nres ncoo nrog additives, Raws li kev sib txhuam cov ntaub ntawv.Recarburizer belongs rau sab nrauv steelmaking, ironmaking recarburizer raw khoom.High quality recarburizer yog ib qho tseem ceeb ntxiv rau kev tsim cov hlau zoo.

Kev siv cov pa roj carbon monoxide:

Nyob rau hauv cov txheej txheem smelting, vim tsis yog batching los yog them thiab ntau decarburization thiab lwm yam laj thawj, tej zaum tshwm sim nyob rau hauv steel carbon ntsiab lus tsis tau raws li qhov yuav tsum tau ntawm lub ncov lub sij hawm, ces mus rau cov kua steel carburization.Feem ntau siv carburizing tus neeg saib xyuas carburizing npua hlau, electrode. hmoov, roj av coke hmoov, charcoal hmoov thiab coke hmoov.Converter smelting nruab nrab thiab siab carbon steel, siv cov roj av coke uas muaj ob peb impurities li carburizing tus neeg sawv cev.Qhov yuav tsum tau ntawm recarburizer rau sab saum toj cua tshuab converter steelmaking yog siab taag carbon, tsawg cov ntsiab lus ntawm tshauv. , volatiles, sulfur, phosphorus, nitrogen thiab lwm yam impurities, qhuav, huv si, thiab me me particle loj.

Lub taag carbon pawg tau muab faib ua:

w(C)> 96%, volatile teeb meem ≤1.0%, W (S) ≤0.5%, W (moisture) ≤0.55%, particle loj ntawm 1 mus rau 5mm.

Yog hais tias qhov particle loj dhau lawm, nws yooj yim rau hlawv.Yog hais tias nws yog ntxhib heev, nws ntab rau saum npoo ntawm molten steel thiab tsis yooj yim rau absorbed los ntawm molten steel.Rau qhov luaj li cas ntawm induction rauv nyob rau hauv 0.2-6 hli, hlau thiab lwm yam dub hlau particle loj nyob rau hauv 1.4-9.5 hli. , siab carbon steel yuav tsum tsis tshua muaj nitrogen, particle loj nyob rau hauv 0.5-5mm, thiab thiaj li nyob rau tej kev xav tau raws li qhov tshwj xeeb furnace smelting workpiece hom thiab thiaj li nyob rau hauv cov ntsiab lus ntawm cov kev txiav txim thiab xaiv.

1, qhov cub input method:

Recarburizer yog tsim rau melting nyob rau hauv induction rauv, tab sis kev siv tshwj xeeb tsis zoo ib yam raws li cov txheej txheem yuav tsum tau ua.

(1) kev siv cov recarburizer nyob rau hauv nruab nrab zaus hluav taws xob rauv smelting, raws li qhov sib piv los yog carbon sib npaug yuav tsum tau nrog cov khoom ntxiv rau hauv qab ntawm lub cub hluav taws xob, tus nqi rov qab tuaj yeem ncav cuag ntau dua 95%;

(2) Yog tias tsis muaj kev hloov pauv ntawm cov pa roj carbon monoxide, thawj lub kaum kaum ntawm lub tshuab hluav taws xob slag, ntxiv rau cov carburant, los ntawm kev nce qhov kub ntawm cov hlau molten, los yog cov khoom siv hluav taws xob sib nqus kom yaj cov pa roj carbon monoxide, qhov rov qab tau yog nyob ib ncig ntawm 90%, yog tias qhov kub thiab txias. Cov txheej txheem carbonization, lub qhov cub tawg tsuas yog ib feem ntawm cov kua hlau molten nyob rau hauv qhov kub thiab txias, tag nrho cov recarburizer ib zaug hauv cov kua hlau, tib lub sijhawm, nws raug nias rau hauv cov hlau molten nrog cov khoom siv kom tsis txhob nthuav tawm cov nplaim ntawm cov hlau molten.Los ntawm txoj kev no, carburization ntawm cov kua hlau tuaj yeem ncav cuag ntau dua 1.0%.

2, sab nraum lub cub tawg carburizing:

(1) tshuaj tsuag graphite hmoov hauv lub hnab

Siv graphite hmoov raws li recarburizer, lub ntim ntim yog 40kg / t, thiab cov pa roj carbon cov ntsiab lus ntawm cov kua hlau yuav tsum nce los ntawm 2% mus rau 3%. 1299 ℃ .Jet graphite hmoov carburization, feem ntau siv nitrogen raws li tus neeg nqa khoom, tab sis nyob rau hauv kev tsim khoom, nrog cov cua compressed yooj yim dua, thiab cov pa oxygen combustion hauv compressed cua los tsim CO, tshuaj lom neeg cov tshuaj tiv thaiv tshav kub tuaj yeem them ib feem ntawm qhov kub thiab txias, thiab CO txo qhov cua los txhim kho cov nyhuv ntawm carburization.

(2) siv cov recarburizer thaum hlau

100-300 lub hom phiaj ntawm graphite hmoov carburizer tuaj yeem muab tso rau hauv lub hnab, lossis los ntawm lub tank hlau nrog cov dej ntws mus rau hauv, tom qab cov hlau ua kua tag nrho stirred, kom deb li deb li deb tau kom yaj cov pa nqus, qhov rov qab ntawm carbon yog li 50%. .

Siv rau casting, cam khwb cia hlau, cam khwb cia hlau, cam khwb cia yuav muaj ib tug yuav tsum tau rau carbon, carburant ib yam li nws lub npe implies yog kom cov pa roj carbon ntsiab lus nyob rau hauv kua hlau, thiab, piv txwv li, feem ntau siv nyob rau hauv smelting rauv nqi rau npua hlau, seem. steel, rov qab mus rau lub cub tawg, cov ntsiab lus ntawm cov hlau yog siab, tab sis cov khoom seem ntawm cov khoom seem yog siab dua, yog li ua kom cov khoom seem, txo kom muaj nuj nqis ntawm cov hlau cam khwb cia, qhov sib ntxiv ntawm cov khoom siv rov ua dua tuaj yeem txo tus nqi casting rau qee qhov.