Rauv input method
Carburizing tus neeg sawv cev 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.
(1) Nyob rau hauv nruab nrab zaus furnace melting siv carburizing tus neeg saib xyuas, raws li qhov sib piv los yog carbon sib npaug yuav tsum tau nrog cov khoom ntxiv rau hauv qab ntawm lub cub tawg, tus nqi rov qab tuaj yeem ncav cuag ntau dua 95%;
(2) cov kua hlau melting yog tias cov pa roj carbon ntau tsis txaus los kho lub sijhawm cov pa roj carbon monoxide, ua ntej ua lub cub tawg slag, thiab tom qab ntawd ntxiv cov carburizing tus neeg sawv cev, los ntawm cov kua hlau cua sov, electromagnetic stirring los yog dag nplawm kom yaj cov pa roj carbon monoxide, tus nqi rov qab. tuaj yeem ua tau li 90, yog tias cov txheej txheem carburizing qis, uas yog, tus nqi tsuas yog melts ib feem ntawm cov hlau molten kub tsawg, tag nrho cov carburizing tus neeg sawv cev ib zaug ntxiv rau cov kua hlau, tib lub sijhawm, nws raug nias rau hauv cov kua. hlau nrog cov khoom siv kom nws los ntawm qhov chaw ntawm cov kua hlau. Txoj kev no tuaj yeem ua rau carburization ntawm cov kua hlau ntau dua 1.0%.
Kev siv cov carburizing tus neeg sawv cev zoo hauv induction rauv
1, kev siv 5T los yog ntau dua hluav taws xob rauv, cov khoom siv raw yog ib leeg thiab ruaj khov, peb pom zoo rau cov txheej txheem ntxiv dispersive. Raws li qhov yuav tsum tau muaj ntawm cov ntsiab lus carbon, raws li qhov sib piv ntawm cov khoom xyaw, tus neeg sawv cev carburizing thiab cov nqi hlau nrog txhua pawg ntawm cov khoom siv los koom rau hauv lub qhov cub hauv qab, ib txheej ntawm cov hlau them ib txheej ntawm carburizing tus neeg sawv cev, cov pa roj carbon nqus tau tuaj yeem. ncav cuag 90% -95%, carburizing tus neeg sawv cev hauv melting tsis slag, txwv tsis pub yooj yim rau qhwv hauv khib nyiab slag, cuam tshuam rau kev nqus ntawm carbon;
2. Qhov nruab nrab zaus induction rauv ntawm txog 3T yog siv, thiab cov khoom siv raw yog ib leeg thiab ruaj khov. Peb pom zoo kom centralized ntxiv txoj kev. Thaum ib qho me me ntawm cov hlau molten yog yaj lossis tso rau hauv lub cub tawg, tus neeg sawv cev carburizing ntxiv rau saum npoo ntawm cov hlau molten hauv ib zaug, thiab cov nqi hlau ntxiv tam sim ntawd. Tus neeg sawv cev carburizing yog nias rau hauv cov hlau molten, kom tus neeg sawv cev carburizing yog tag nrho ntawm kev sib cuag nrog cov hlau molten, thiab qhov nqus tau ntau dua 90%;
3, kev siv me me nruab nrab zaus hluav taws xob rauv, cov khoom siv raw nrog npua hlau thiab lwm yam khoom muaj roj carbon ntau, peb pom zoo kom carburizing tus neeg saib xyuas zoo. Tom qab steel / molten hlau melting, kho cov ntsiab lus carbon, tuaj yeem ntxiv rau saum npoo ntawm steel / molten hlau, los ntawm eddy tam sim no nplawm cov hlau (hlau) dej los yog dag nplawm kom yaj thiab nqus cov khoom, cov pa roj carbon absorption yog txog 93%.
Sab nraum qhov cub carburization txoj kev
1. Txau graphite hmoov rau hauv lub hnab
Graphite hmoov ua tus neeg sawv cev carburizing, tshuab rau hauv qhov nyiaj ntawm 40kg / t, tuaj yeem xav tias yuav ua rau cov pa roj carbon cov ntsiab lus ntawm cov kua hlau los ntawm 2% mus rau 3%. Raws li cov ntsiab lus carbon ntawm cov kua hlau maj mam nce, qhov kev siv cov pa roj carbon tsawg. Qhov kub ntawm cov kua hlau ua ntej carburization yog 1600 ℃, thiab qhov nruab nrab kub tom qab carburization yog 1299 ℃. Graphite hmoov carburization, feem ntau siv nitrogen raws li cov cab kuj, tab sis nyob rau hauv kev lag luam tej yam kev mob, compressed cua yog yooj yim dua, thiab cov pa oxygen nyob rau hauv compressed cua combustion los tsim CO, tshuaj lom neeg cov tshuaj tiv thaiv tshav kub muaj peev xwm them rau ib feem ntawm qhov kub thiab txias, thiab CO txo cua sov. yog qhov zoo rau kev txhim kho cov nyhuv carburization.
2, kev siv hlau carburizing tus neeg sawv cev
100-300 graphite hmoov carburizing tus neeg sawv cev tuaj yeem muab tso rau hauv lub pob, lossis los ntawm cov hlau qhov hluav taws xob nrog cov ntws mus rau hauv, tom qab cov hlau tawm ntawm cov kua ua kom tag nrho, kom deb li deb tau kom yaj cov pa nqus, carbon rov qab tus nqi yog hais txog. 50%.
Hauv kev siv carburizing tus neeg sawv cev yuav tsum tau them sai sai rau qhov teeb meem
Yog tias lub sijhawm ntxiv ntawm tus neeg sawv cev carburizing ntxov dhau lawm, nws yog qhov yooj yim los muab nws nyob ze rau hauv qab ntawm lub cub tawg, thiab tus neeg sawv cev carburizing txuas rau ntawm phab ntsa ntawm lub qhov cub tsis yooj yim rau fused rau hauv cov kua hlau. Ntawm qhov tsis sib xws, ntxiv sijhawm lig dhau lawm, yuav plam lub sijhawm ntxiv cov pa roj carbon monoxide, uas ua rau melting, cua sov lub sijhawm qeeb. Qhov no tsis tsuas yog ncua sij hawm rau kev tshuaj ntsuam xyuas thiab kev hloov kho tshuaj lom neeg, tab sis kuj tseem ua rau muaj kev phom sij los ntawm kev ua kom sov ntau dhau. Yog li ntawd, carburizing tus neeg sawv cev los yog nyob rau hauv tus txheej txheem ntawm ntxiv hlau nqi me ntsis los ntawm me ntsis mus koom.
Xws li nyob rau hauv cov ntaub ntawv ntawm ntau ntxiv, tuaj yeem ua ke nrog lub qhov cub induction thaum cov kua hlau overheating ua haujlwm ua ke nrog kev txiav txim siab, kom ntseeg tau tias cov carburizer hauv cov kua hlau nqus lub sij hawm ntawm 10Min, ntawm ib sab los ntawm electromagnetic stirring cov nyhuv ntawm carburizer tag nrho diffusion nqus, kom ntseeg tau tias cov nyhuv nqus. Ntawm qhov tod tes, tus nqi ntawm nitrogen coj mus rau hauv lub carburizer tuaj yeem txo qis.
Tsis txhob ntxiv ib zaug, ntxiv rau hauv batch, thiab thaum kawg yaj ib feem, muab ib feem ntawm cov hlau kub (txog ib pob) rau hauv lub hnab, thiab ces rov qab mus rau lub cub tawg carburizer 1-2 zaug, thiab ces slag, ntxiv alloy.
Muaj ntau ntau yam uas yuav tsum tau them rau:
1. Carburizing tus neeg sawv cev yog qhov nyuaj rau nqus (tsis muaj calcination);
2, carburizing tus neeg saib xyuas cov hmoov tshauv particle faib tsis sib xws;
3. Koom nrog lig;
4. Cov txheej txheem ntawm kev koom ua ke tsis raug, thiab kev sib koom ua ke yog saws. Tsis txhob ua kua iav iav thiab slag ntau dhau thaum ntxiv;
5. Sim tsis txhob siv cov khoom rusty ntau dhau.
Cov yam ntxwv ntawm cov neeg ua haujlwm zoo carburizing
1, qhov loj me me yog nruab nrab, qhov porosity loj, qhov nqus nrawm nrawm.
2. Pure tshuaj muaj pes tsawg leeg, siab carbon, tsis tshua muaj sulfur, me me teeb meem Cheebtsam, siab nqus tus nqi.
3, cov khoom siv lead ua graphite yog qhov zoo, txhim kho tus thawj cov kua hlau nucleation muaj peev xwm. Ua kom cov nodular hlau nodules nyob rau hauv inoculation, thiab ua kom cov graphite nucleus nyob rau hauv hluav taws xob rauv kua hlau. Ua kom zoo thiab txawm tias kev faib cov fossil number case hauv castings.
4. Kev ua tau zoo thiab ruaj khov.
Kev xaiv tus neeg sawv cev tsim nyog carburizing pab txo cov nqi tsim khoom, txhim kho qhov zoo ntawm smelting hlau thiab castings, kom smelting cog, casting.
Post lub sij hawm: Dec-02-2022