Carburizers tau muab faib ua: roj av coke carburizers, graphitized carburizers, natural graphite carburizers, metallurgical coke carburizers, calcined thee carburizers, natural graphite carburizers, thiab composite material carburizers.

Qhov sib txawv tseem ceeb ntawm graphite recarburizers thiab thee recarburizers yog:

1. Cov khoom siv raw yog txawv.Graphite recarburizer yog ua tiav los ntawm kev tshuaj ntsuam graphite, thaum thee recarburizer yog calcined los ntawm anthracite;

Qhov thib ob, cov yam ntxwv txawv.Graphite recarburizer muaj qhov zoo ntawm cov hlau tsis muaj sulfur thiab nitrogen, qhov kub thiab txias tsis kam, zoo hluav taws xob conductivity, thiab lwm yam, uas tsis muaj nyob rau hauv cov thee-based recarburizers;

Peb, tus nqi nqus yog txawv.Kev nqus ntawm graphite recarburizer tuaj yeem ncav cuag ntau dua 90%, yog li txawm tias cov ntsiab lus carbon ntawm graphite recarburizer tsis siab, nws tuaj yeem ua tau raws li qhov yuav tsum tau siv;

Plaub, tus nqi sib txawv.Txawm hais tias tus nqi ntawm graphite recarburizer yog tus nqi siab, kev siv cov nqi qis dua.

Lub carburization ntawm lub carburizer yog nqa tawm los ntawm dissolution thiab diffusion ntawm carbon nyob rau hauv lub molten hlau.Cov kev tshawb fawb tau pom tias thaum cov ntsiab lus ntawm cov hlau-carbon alloy yog 2.1%, graphite recarburizers thiab non-graphite recarburizers ua kom sib npaug vim lub cev ntub dej;tab sis thaum cov ntsiab lus carbon ntawm molten hlau yog ntau dua 2.1%., Cov graphite hauv graphite recarburizer tuaj yeem ncaj qha yaj hauv cov hlau molten, thiab qhov tshwm sim no tuaj yeem hu ua kev sib cais ncaj qha.Qhov tshwm sim ntawm kev sib cais ncaj qha ntawm cov tsis-graphite recarburizer tsis tshua muaj tshwm sim, tab sis cov pa roj carbon maj mam diffuses thiab yaj hauv cov hlau molten raws li lub sijhawm dhau mus.Yog li ntawd, carbonation tus nqi ntawm graphite recarburizer yog ho siab dua cov uas tsis yog-graphite recarburizer.

Cov lus nug yuav tsum xyuam xim rau thaum xaiv ib tug carburant:

1. Sim siv high-temperature graphitization-kho recarburizers (qhov siab dua qhov kev kho mob kub, qhov zoo dua cov graphitization nyhuv), xws li graphite electrodes los yog graphitized roj coke.Vim hais tias ib tug zoo recarburizer muaj ib tug siab absorption tus nqi thiab ib tug ceev ceev dissolution tus nqi, nws yog zoo los txo lub zog noj, thiab muaj peev xwm ua tau zoo nce lub nucleation core ntawm molten hlau thiab txhim kho cov metallurgical zoo;

2. Xaiv cov carburizers uas tsis tshua muaj impurity xws li sulfur thiab nitrogen.Cov ntsiab lus nitrogen ntawm recarburizer nrog cov ntsiab lus sulfur siab kuj yog siab.Thaum cov ntsiab lus nitrogen ntawm grey hlau molten hlau yog siab tshaj qhov sib npaug ntawm qhov sib npaug, nws yog ib qho yooj yim los tsim cov kab nrib pleb zoo li nitrogen pores, thiab cov hlau hlau molten hlau yog qhov ua rau shrinkage defects nyob rau hauv tuab-walled qhov chaw, thiab cov ntsiab lus ntawm impurities yog. siab.Ua kom cov nyiam ntawm casting slag suav nrog;

3. Raws li qhov sib txawv ntawm qhov cub tawg, xaiv qhov loj me me ntawm cov recarburizer tuaj yeem txhim kho qhov nqus ceev thiab tus nqi ntawm cov carburant los ntawm cov hlau molten.