Daim Ntawv Thov Ferrophosphorus: Ib Phau Ntawv Qhia Rau Metallurgy Thiab Kev Lag Luam

Ferrophosphorus, ib qho alloy feem ntau tsim ntawm cov hlau thiab phosphorus (feem ntau txog 20% ​​phosphorities xws li cov pa hluav taws xob, yog leej faj lub luag haujlwm tseem ceeb hauv ntau kev lag luam. Nws tshwj xeeb cov tshuaj xws li, hardness, thiab alloying zog ua rau nws tsis tseem ceeb ntawm cov txheej txheem metallensable hauv cov txheej txheem metallurgical, kev tsim khoom, thiab cov ntawv thov tshwj xeeb.

Kev lag luam hlau yog cov neeg siv khoom loj tshaj plaws ntawm Ferro phosphorus, qhov chaw nws ua si peb lub luag haujlwm tseem ceeb: deoxidation, thiab muaj zog ntxiv.

Deoxidation

Thaum lub sij hawm cov txheej txheem statmaking, yaj oxygen hauv Molten steel tuaj yeem ua rau embrittlement thiab txo cov tshuab ua kom muaj zog. Ferrophosphorus alloy reacts yooj yim nrog oxygen los ua ruaj khov phosphorus oxides. Cov oxides ntab mus rau saum npoo ntawm molten hlau li slag, ua rau muaj cov ntsiab lus pa hauv cov hlau. Qhov no yog qhov tshwj xeeb tshaj yog nyob rau hauv kev tsim cov qis {{3} {{4 4}}} Cov ntsiab lus pa yuav tsum tau tswj txhua yam yog.

Desulfurization

Cov phosphorus hauv Ferrro phosphorus alloy muaj kev muaj zog muaj zog rau cov leej faj, sib txuas nrog nws los ua insoluble sulfides. Qhov txheej txheem desulfurization no txhim kho cov hlau ductility thiab tsis kam mus rau kub tawg, ib qho teeb meem kub, yog ib qho kev siv Sulfur high-}

Sib ntxaws

Raws li ib tug neeg sawv cev sib piv, FEP txhim kho cov coj tsis kam thiab tawv ntawm cov hlau. Nws yog dav siv nyob rau hauv kev tsim cov kev tsheb nqaj hlau, automotive zog, thiab kev ua liajcural Machinery qhov chaw uas nquag raug kev sib txhuam thiab cuam tshuam. Piv txwv li, cov hlau thaiv cov hlau nrog FEP alloys tswj nws cov duab thiab durability txawm tias hauv qab cov tsheb ciav hlau hnyav.

Hauv kev lag luam foundry, Ferro Hlau yog tus yuam sij ntxiv hauv cam khwb cia hlau ntau lawm, tshwj xeeb rau cov roj av grey thiab du zoo microstructure thiab cov khoom siv mechanical.

Grey cam khwb cia hlau

Lub tshuab luam ntawv ntawm grey cam khwb cia hlau nyob ntawm cov kev faib hluav taws xob ntawm flake graphite. Hlau phosphorus txhawb nqa kev tsim ntawm nplua, tusyees faib cov duab cuav, yog li txo qhov kev pheej hmoo ntawm "Dawb fab cam khwb cia los ntawm kev ua tsis tiav graphite nag). Qhov no txhim kho kev sib zog ntawm cov hlau cam khwb cia, ua rau nws zoo tagnrho rau cov cav thaiv cov cav, cov yeeb nkab fittings, thiab nres tsheb.

Spheroidal graphite nrum hlau

Rau cov hlau caning (siv kom muaj siab - Lub zog applications xws li cov kav dej thiab tsheb crankshofts ua raws li tus neeg sawv cev. Nws ua haujlwm synergistically nrog magnesium (thawj nodulizer) kom ruaj khov rau kev tsim cov tshuaj pleev ib ce hlau tensile lub zog thiab nkees ua yeeb yam. Cov foundries feem ntau kho tus nqi ntawm ferrophosphorus siv (feem ntau 0.1-0.3% los ntawm qhov hnyav ntawm cov yaj) raws li cov cam khwb cia hlau qib.

Ferrophosphorus yog qhov tseem ceeb ntawm flux thiab coated electrodes, txhim kho weld zoo thiab txheej txheem ruaj khov.

Flux (hmoov lossis granules siv nyob rau hauv cov txheej txheem vuam):

Nws tiv thaiv lub pas dej weld los ntawm cov kev paug vag paug (oxygen, nitrogen) thiab tshem tawm impurities. Cov ferrophosphorus hauv fluxosphorus nyob rau hauv flux ua raws li deoxidizer thiab slag yav dhau los tus weld li nws txias, tiv thaiv porosity thiab ua kom muaj kev sib koom ua ke. Qhov no yog qhov tshwj xeeb tshaj yog rau kev tuav hlau arc vuam (mmaw) ntawm carbon thiab qis -}}}}} cov hlau almoy.

Coated Electrodes:

Nws yog ntxiv rau Flux txheej. Nws txhim kho cov electrode ntawm arc ruaj khov, txo cov nplais (cov dej ntws ntawm cov hlau molten molten), thiab txhim kho tus weld tawg tsis kam. Welders nyiam siv cov hluav taws xob muaj cov ferrophosphorus sab nraum zoov lossis hauv siab} cov av noo noo, qhov kev pheej hmoo ntawm cov kev paug loj dua.

Tshaj mellurgy, Ferrro phosphorus yog dav siv nyob rau hauv ntau qhov tshwj xeeb, siab {}} tus nqi siv tshuaj lom zem vim nws cov khoom siv thiab lub cev nqaij daim tawv:

Roj Teeb Raug:

Ferrophosphorus yog ib qho tseem ceeb rau iron phosphate (FEPOON), qhov tseem ceeb c canhode hauv cov roj ntsha litheium))). LFP roj teeb tau siv dav hauv cov tsheb hluav taws xob (EVS) thiab lub zog cia cov tshuab kev nyab xeeb, lub neej ntev, thiab tus nqi qis. Ferrophosphorus muab tus nqi -}}}} Cov hlau thiab phosphorus rau kev lag luam fepoter fepofes rau kev lag luam tsis sib xws.

Nplaim taws retardants:

Phosphorus tebchaw tau los ntawm ferrophosphorus tuaj yeem siv rau hauv polymer nplaim retardants. Thaum ntxiv rau plastics, textiles, lossis cov duab ci, cov tebchaw tso tawm cov tshuaj sib txuas, sib sau ua cov txheej txheem tiv thaiv ntawm cov khoom ntawm cov khoom. Qhov txheej txheem no tso inhibits qhov hloov pauv ntawm oxygen thiab cua sov, txo kev kis ntawm hluav taws. Cov khoom siv hluav taws xob ferrophosphorus tau siv los tiv thaiv lossis qeeb kis ntawm cov hluav taws, ua rau lawv muaj txiaj ntsig zoo li cov ntaub ntawv hluav taws xob.

Corrosion -} Cov txheej ywm tiv thaiv:

Zoo ferrophosphorus aloy hwj tuaj yeem sib xyaw nrog cov khaub ncaws hlau rau cov kav hlau, cov khoom siv marine, thiab kev lag luam tshuab. Cov phosphorus nyob rau hauv txheej reascts nrog noo noo thiab oxygen los ua ib qho ntom ntom, tsis txhob muaj xeb thiab txuas lub neej ntawm cov khoom siv.

Ferrophosphorus yog ib qho alloy ntau yam uas txhim kho kev ua tau zoo thiab ua tau zoo hauv cov hlau, nrhiav tau, vuam, thiab txuas ntxiv hluav taws xob. Nws lub peev xwm rau deoxidize, desulfurize, alloy, thiab txhim kho cov khoom siv tau zoo rau kev txhim kho cov khoom lag luam zoo thiab txo cov khoom lag luam zoo thiab txo cov khoom lag luam kom zoo thiab txo cov khoom lag luam. Raws li kev lag luam ua ntej ua tiav qhov ua rau muaj nqis, kev ua kom ruaj khov, thiab kev xav tau zoo rau kev cog qoob loo, cementing nws txoj hauj lwm raws li lub pob zeb uas niaj hnub muaj cov txheej txheem niaj hnub.