Ferromolybdenum yog dab tsi?
Ferromolybdenum, abbreviated FeMo, yog ib qho alloy ntawm molybdenum thiab hlau uas ua haujlwm raws li tus qauv molybdenum additive hauv steelmaking thiab cam khwb cia hlau ntau lawm. Nws yog muag hauv daim ntawv thiab muab qhab nia los ntawm nws cov ntsiab lus molybdenum. Ntxiv molybdenum rau cov hlau txhawb kev sib xws, zoo - cov qauv zoo, pab tshem tawm kev npau taws, txhim kho hardenability thiab nce lub zog kub ntawm cov hlau. Hauv siab - steels ceev, molybdenum tuaj yeem hloov tau ib feem ntawm cov tungsten kim dua yam tsis muaj kev txiav kev ua haujlwm.
Lub luag haujlwm ntawm Molybdenum hauv Hlau thiab Cast Iron
Nrog rau lwm yam alloying ntsiab lus, molybdenum yog dav siv nyob rau hauv tshav kub-resistant steels, stainless steels, acid-resistant steels thiab cov cuab yeej steels, nrog rau cov hlau alloys nrog tshwj xeeb lub cev muaj zog xws li kev txhim kho creep kuj nyob rau hauv siab kub. Hauv qib stainless thiab duplex, molybdenum ntxiv dag zog rau pitting thiab crevice corrosion nyob rau hauv ib puag ncig chloride. Ntxiv molybdenum rau cam khwb cia hlau tsub kom lub zog thiab hnav tsis kam, uas yog vim li cas ferromolybdenum tshwm nyob rau hauv hnyav- lub luag hauj lwm castings xws li nres Cheebtsam, zeb liners thiab hnav daim hlau. Vim tias molybdenum yog ib qho muaj zog carbide qub, nws kuj txhim kho cov lus teb ntawm cov hlau rau kev kho cua sov.
Kev sib xyaw thiab qib Parameters
Cov qib Ferromolybdenum yog txhais los ntawm lawv cov ntsiab lus molybdenum. Cov qib kev lag luam feem ntau yog FeMo60 thiab FeMo70, nrog FeMo55 thiab siab dua -purity variants muaj rau cov ntawv cog lus tshwj xeeb. Cov ntsiab lus tsis huv xws li silicon, sulfur, phosphorus, carbon thiab tooj liab yog txwv kom cov hlau huv si rau cov qib hlau rhiab heev.
| Qib | Molybdenum Cov ntsiab lus | Hom impurity txwv |
|---|---|---|
| FeMo55 | 50 mus rau 60 feem pua Mo | Si 2.0 max, S 0.10 max, P 0.08 max, C 0.20 max, Cu 0.5 max |
| FeMo60 | 55 mus rau 65 feem pua Mo | 1.5-2.0 max, S 0.10 max, P 0.05 txog 0.08 max, C 0.15 txog 0.20 max |
| FeMo70 | 65 mus rau 75 feem pua Mo | Si 1.5 max, S 0.10 max, P 0.05 max, C 0.10 max, Cu 0.5 max |
Cov txiaj ntsig tau pom yog qhov siab tshaj plaws rau kev coj ua lag luam; kev txwv nruj raws li tus qauv siv tau thiab tus neeg yuav khoom specification.
Lub cev muaj zog
Ferromolybdenum yog ib qho hnyav, nkig alloy. Its apparent density and melting range are the properties most often quoted in specifications and transport calculations.
| Khoom | Metric | Imperial |
|---|---|---|
| Pom qhov ntom ntom | txog 9.0 grams ib cubic centimeter | txog 0.325 phaus ib cubic nti |
| Melting ntau | 1665 txog 1715 degrees Celsius | 3029 txog 3119 degrees Fahrenheit |
Qhov ntom sib txawv me ntsis nrog cov ntsiab lus molybdenum thiab porosity, yog li tus nqi saum toj no yog qhov qhia txog cov khoom lag luam.
Txoj kev tsim khoom thiab khoom siv thoob ntiaj teb
Ferromolybdenum feem ntau yog tsim los ntawm txoj kev metallothermic, nyob rau hauv uas roasted molybdenum mloog zoo, hlau oxide thiab ib tug hlau reductant xws li txhuas los yog ferrosilicon reacted nyob rau hauv lub cub tawg los tsim ib tug molten FeMo alloy thiab ib tug slag. Cov tshuaj tiv thaiv exothermic yuav tsum tsis muaj lub zog sab nraud ib zaug pib, thiab cov alloy hnyav nyob hauv qab lub sib zog slag rau kev sib cais yooj yim. Cov khoom siv raw khoom pib nrog molybdenum concentrate, ib qho khoom siv ntawm tooj liab mining, uas yog roasted rau technical-qib molybdenum oxide ua ntej yuav txo. Ntiaj teb no molybdenum ntau lawm yog concentrated nyob rau hauv ib tug me me ntawm lub teb chaws, nrog Tuam Tshoj, Chile, lub tebchaws United States thiab Peru accounting rau feem ntau ntawm cov mined outputs, thiab mov yog li rhiab heev rau tooj liab mine tso zis thiab lub regional txoj cai hloov.
Cov lus nug nquag
Dab tsi yog ferromolybdenum siv rau?
Nws yog siv los ua tus qauv molybdenum ntxiv rau cov hlau thiab cam khwb cia hlau, txhim kho hardenability, kub lub zog, corrosion kuj thiab hnav tsis kam nyob rau hauv alloy, stainless, cuab yeej thiab tshav kub- qib resistant.
Cov lej hauv FeMo60 thiab FeMo70 txhais li cas?
Tus lej qhia txog cov ntsiab lus nominal molybdenum. FeMo60 muaj kwv yees li 55 txog 65 feem pua molybdenum thiab FeMo70 txog 65 txog 75 feem pua.
ferromolybdenum ua li cas?
Nws yog tsim los ntawm cov txheej txheem metallothermic, nyob rau hauv uas roasted molybdenum concentrate reacts nrog ib tug metallic reductant xws li txhuas los yog ferrosilicon nyob rau hauv ib tug exothermic txo uas tsim ib tug molten alloy thiab ib tug slag txheej.
Vim li cas molybdenum hloov tungsten hauv high -ceev steel?
Molybdenum ua cov carbide zoo sib xws- tsim thiab ua lub luag haujlwm hardening ntawm tus nqi qis thiab qis dua, yog li ib feem ntawm cov tungsten tuaj yeem hloov pauv yam tsis poob kev ua haujlwm.
Dab tsi yog cov yam ntxwv ntawm lub cev ntawm FeMo?
Kev lag luam ferromolybdenum muaj qhov pom tseeb ntom ntawm li 9.0 grams ib cubic centimeter thiab melts nyob rau hauv thaj tsam ntawm 1665 txog 1715 degrees Celsius.
Lub teb chaws twg tswj hwm molybdenum khoom?
Cov khoom lag luam mined yog concentrated nyob rau hauv Tuam Tshoj, Chile, Tebchaws Asmeskas thiab Peru, feem ntau yog cov khoom lag luam ntawm tooj liab mining, uas ua rau muaj kev cuam tshuam rau kev lag luam tooj liab.