Hauv kev tsim khoom siv casting, tshwj xeeb tshaj yog thaum siv Seem Steel Recarburization, cov tshuaj sib haum xeeb zoo li "tshuaj siv hluav taws xob" hauv Molten hlau. Lawv cov kev xaiv ncaj qha cuam tshuam rau kev ua tau zoo (xws li ntaus nrig sib txawv thiab cov khoom siv ua kom tiav) thiab tseem muaj txiaj ntsig zoo tshaj plaws thiab muaj txiaj ntsig. Tam sim no, Recarburizers ntawm kev ua lag luam yog feem ntau pawg: Graphitized Feeb, thiab thee- bible recarburizers. Cov khoom lag luam no txawv nyob rau hauv muaj pes tsawg leeg, kev ua, thiab cov ntawv teev npe.
Tau qhov twg los thiab kev ua tau zoo sib txawv:
- Granditized Feeb yog qhov siab -}}}- sov kev kho siab tshaj 2500 degree. Lawv muaj cov ntsiab lus carbon taurbon ntawm 98% -99.5% thiab cov neeg Sulfur cov ntsiab lus hauv qab no 0.05%, ua rau pom tus nqi zoo tshaj plaws (nqus tus nqi ntawm 90% -95%).
- Roj av coke suav dua, ua los ntawm cov roj ua kom ua kom zoo dua ntawm cov roj thiab calcined ntawm 1200-1500, muaj cov duab roj carbon ntau ntawm 90% -98%. Cov Sulphur cov ntsiab lus yog feem ntau 0.3% -0.7%. Thaum lub ntuj graphite Secarburizers muaj kev tsim kho ib puag ncig, lawv cov ntsiab lus sib xyaw ua ke ntawm kev nqus cov ntsiab lus ntawm kev nqus tau ntau (0.1% -1.5%).
- Thee -} Raws li cov ntsiab lus carbon ntau (80% -90%) thiab cov Sulfur Cov Ntsiab Lus (0.5% -2%).
Daim ntawv thov sib txawv:
High -}} end} end end Zas Hlau Thiab Tseem Ceeb Grey Hlau Castings (Lub Tog Raj Kheej, Txheej Txheem Hydraulic, Thiab lwm Yam):
Cov khoom siv dag ntxias kom tau txais kev xaiv yog qhov kev xaiv uas xav tau. Tsis tshua muaj neeg cog qoob loo tsawg, nitrogen, thiab cov hmoov tshauv yog qhov tseem ceeb los ua kom muaj kev sib tw, thiab ua tiav cov hlau ntshiab molten. Ultra - siab} siab thiab ruaj khov nqus cov nqi ua kom meej tswj cov ntsiab lus carbon.
General Grey Hlau Castings thiab Huab Cua Castings nrog qis dua yuav tsum tau:
Xam cov roj creameum coke Feeb yog cov tseem ceeb, kev lag luam, thiab xaiv cov kev xaiv. Lawv muaj cov ntsiab lus ntau cov pa roj carbon monoxide, tus nqi nqus tau zoo, thiab cov ntsiab lus ntawm cov lus faj sulfur sulfur. Lawv qis dua qhov tsis muaj nqi dua li cov duab nra thiab tuaj yeem ua kom tau raws li kev xav tau kev ua tau zoo tshaj plaws. Rau tus nqi -} Heart Grey Hlau Castings nrog Solded Sulfur / Nitrogen qhov kev xav tau, muaj kev xaiv anthburnite, muab cov kev xaiv tshwj xeeb. Nws cov txiaj ntsig tseem ceeb yog nws tus nqi qis tshaj. Txawm li cas los xij, nws tseem muaj qhov tsis zoo: Cov leej faj siab, cov txiaj ntsig zoo, thiab cov txiaj ntsig hmoov tshauv Pose cov kev pheej hmoo tsis ruaj khov thiab qis.
Tus nqi txiav txim siab:
Khoom cuav Graphite: Thaum nws muaj tus nqi siab tshaj plaws, nws qhov kev sib haum xeeb siab tshaj plaws thiab ruaj khov feem ntau yuav tsum tau ntxiv cov ntsiab lus carbon. Qhov tseem ceeb tshaj, nws cov kev ua tau zoo (txo cov nqi ua kom zoo dua los ntawm kev kho mob hlau, tshwj xeeb tshaj plaws hauv kev tsim kho tus nqi tag nrho, tshwj xeeb}}} Kawg ua ntau lawm.
- Pethpled roj Coke: nws ntaus qhov sib npaug zoo ntawm tus nqi, kev nqus tus nqi, thiab kev ua tau zoo tag nrho cov nqi {}} ua hauj lwm zoo, ua rau nws siv dav hlau siv dav.
- Xam anthracite: nws muaj qhov qis tshaj plaws tus nqi, tab sis nws cov nqi nqus tau qis dua txhais tau tias qhov hnyav ntau yuav tsum tau txuas ntxiv kom ua tiav cov ntsiab lus qub carbon. Cov Sulfur, nitrogen, thiab cov hmoov tshauv muaj peev xwm ua kom cov kev pheej hmoo (ua kom zoo nkauj, thiab cov nqi sib zog ntau dua, thiab kev ua tau zoo. Thaum zoo li pheej yig, qhov no yuav tsis muaj nqis rau tus nqi, tshwj xeeb yog thaum ua tau zoo yog txoj kev nruj me ntsis.
Thaum xaiv cov recarburizer, casting tuam ntxhab yuav tsum tau dhau tus nqi tshaj tus nqi uas yooj yim thiab cov khoom siv tau, thiab cov nqi tag nrho (suav nrog poob zoo). Ib tug recarburizer qhia kom meej rau cov txheej txheem tseev kom muaj tuaj yeem dhau los ua lub tshuab muaj zog rau kev ua tiav cov khoom lag luam zoo tshaj thiab txhim kho kev lag luam ua haujlwm.
