Ferrophosphorus alloysyog cov tseem ceeb ua haujlwm ntxiv hauv kev ua pov, tshwj xeeb tshaj yog hlau hlau casting. Thaum lub sij hawm cov txheej txheem casting, fluting txheej txheem thiab pwm thiab cov duab tawg ncaj qha seb puas muaj kev sib sau ua ke; " Ib qho ntawm cov haujlwm tseem ceeb ntawm ferrophosphorus alloys yog los daws cov txheej txheem no mob:
Ua kom zoo ua kom cov txheej txheem casting thiab txo cov khoom muaj ntau lawm.
Yooj Yim Txhim Kho Cov Hlau Kolten Hlau
Phosphorus (p) hauv molten hlau txo nws viscosity, tawg cia atomic argeniel hauv cov hlau molten. Qhov no yog qhov tseeb tshwj xeeb rau nyias - walled khoom siv (xws li cov khoom siv kho kom zoo nkauj (xws li multiions} channel valve lub cev thiab cov cav thaiv). Qhov kev sib ntxiv ntawm FEP Alloy tuaj yeem txhim kho cov pwm {{sau muaj peev xwm los ntawm cov neeg sib tw me me thiab nyias {9} {}} Walled cheeb tsam. Qhov no cuam tshuam degroms xws li "kev sib sau ua ke" (molten hlau tsis fusing fusing tom qab solidification), nce tus nqi dhau los ntawm ntau tshaj 20%.
Refining cov qauv tsim qauv thiab txo cov kab mob ntsws thiab porosity
Phosphorus ua zoo li "heterogeneous nucleatous nucleation nucleation uclectification" Qhov kev ua kom pom tseeb no tso cai rau cov kev sib txawv ntawm Molten hlau, tiv thaiv kev tsim ntawm "porosity) lossis" porosity "(me me, me me, dispersed ntxaij. Qhov no txhim kho kev sib khi thiab lub zog tiv thaiv ntawm cov castingsetness xav tau cov cua, xws li cov kav dej thiab cov hlab ntsha siab.
Txhim kho cov neeg kho tshuab thiab cov khoom muaj nuj nqi ntawm cov cuab yeej
Ntxiv rau cov txheej txheem optimation, ferrophosphorus alloys tseem tuaj yeem txhim kho kev ua tau zoo ntawm cov khoom siv, sib ntsib txoj haujlwm ntawm cov xwm txheej sib txawv:
Txhim kho cov kev hnav tsis kam thiab txuas ntxiv lub neej
Nyob rau hauv kev coj -} Tus tiv thaiv cov hlau (xws li cov xov xwm xov tooj tshuab, phosphorus thiab hlau cov ntawv xov tooj Qhov no eutectic muaj qhov hardness siab (hV 800- 1000) thiab tau faib tawm hauv lub cam khwb cia hauv lub cam khwb cia hlau, ua yeeb yam zoo li "lub cev tawv" los tiv thaiv kev hnav. Piv rau cov hlau cam khwb cia tsis muaj phosphorus, phosphorus {% 6}-ntev, ua rau nws tsim tshwj xeeb rau kev cuam tshuam thiab kev sib txhuam.
Txhim kho cov tshuab luam ntawv thiab txo cov nqi.
Rau cam khwb cia hlau qhov chaw yuav tsum tau txuas ntxiv (xws li zoo li cov qauv posphorus (thiab 0.2% Lub ntsej muag ntawm cov phosphorus kuj tau yooj yim rau kev txiav tawm thaum txiav (tiv thaiv "ntev daim tawv" los ntawm kuj txo cov cuab yeej hnav. Hauv kev siv tshuab tiag tiag, phosphorus-muaj cov hlau cam khwb cia muaj peev xwm txhim kho kev txuag los ntawm 20%, thiab tsis ncaj siv cov nqi machining.
Pab txhim kho hauv kev txhim kho lub zog (yuav tsum tau ua tib zoo saib xyuas).
Hauv Grey cam khwb cia hlau lossis hlau hlau, kab tawm ntawm phosphorus (tsawg dua lossis sib npaug ntawm cov khoom siv dag zog ntawm "kev daws teeb meem zog zog." Phosphorus atoms, thaum incorporated rau hauv cov ntxaij hlau nyom, tabkaum cais tawm cov lus tsa suab, nce lub zog casting lub zog los ntawm 5% -10%. Txawm li cas los xij, nws yuav tsum raug sau tseg tias qhov txiaj ntsig no yuav tsum muaj kev tswj hwm ntawm phosphorus (MN) thiab tooj liab (CU) kom ua tiav qhov sib npaug ntawm lub zog thiab tawv.
Tus nqi qis, kev siv ntau, thiab kev lag luam yooj yim
Los ntawm kev siv cov kev tsim khoom siv, kev siv Ferro phosphorus alloys kuj tseem muaj cov qauv zoo, muaj kev sib xyaw ua ke yooj yim rau hauv cov txheej txheem casting uas muaj tam sim no:
Siab tus nqi - kev ua haujlwm thiab expily muaj cov ntaub ntawv raw
Phosphorus hlau alloy yog los ntawm phosphorus tshuaj lag luam (ua ib txhij thaum lub suab refraces). Nws cov khoom siv nyoos muaj qis dua qhov uas muaj cov hlau uas muaj nqis xws li Nickel (NI) thiab chromium (CR). Tsis tas li ntawd, tus nqi ntawm ferro phosphorus ntxiv rau ib tuj ntawm casting yog tsawg heev (feem ntau cov txheej txheem los yog teeb meem kev nqis peev lossis kev ua tau zoo, ua rau muaj txiaj ntsig zoo ntawm tus nqi zoo.
Tau tshaj nrog ntau yam ntawm cov hlau cam khwb cia hlau, muaj zog sib xyaw.
Phosphorus ferro alloy yog haum rau ze li txhua lub ntsiab lus cam khwb cia hlau pawg:
Grey cam khwb cia hlau (txhim kho fundity thiab tshuabsab);
Zas nrum hlau (pab ua kom muaj microstructure thiab txhim kho lub zog);
Hnav -} tiv taus hlau (core coj {{1} {reawant enhancer);
Thin -} Phab Ntsa Hlau Hlau (Tseem Ceeb Dlubrizer).
Tsis muaj kev hloov kho yog qhov yuav tsum muaj los ua cov cuab yeej smelting (cov hluav taws xob nruab nrab zaus, cupolas); Tsuas yog ntxiv nws hauv kev faib ua feem thaum nruab nrab thiab lig theem ntawm smelting, ua rau nws yooj yim ua haujlwm.
Yooj yim los tswj kev sib sau ua ke thiab ua kom muaj kev ruaj khov zoo.
Nws muaj cov kev faib tawm qib kawm kom meej (xws liFEP16, FEP21, thiab FP24, coj mus rau phosphorus cov ntsiab lus ntawm 15% {{8%, 20% {{{- 25%). Cov foundries tuaj yeem xaiv cov qib kawm raws li lawv lub hom phiaj phosphorus cov ntsiab lus. Los ntawm thawj coarse - tuning (ntxiv cov ntsiab lus ferrophosphorus
Nws yuav tsum raug sau tseg tias kev ua kom zoo ntawm cov txiaj ntsig zoo ntawm cov txiaj ntsig yog "kev tswj xyuas phosphorus" (kom tsis txhob muaj kev pheej hmoo ntawm embrittlementlement). Hauv daim ntawv thov tiag tiag, nws yog ib qho tsim nyog los xaiv cov tsim nyog ferrrohosphorus qib tsim nyog thiab ntxiv cov nqi raws li cov khoom siv casting thiab cov haujlwm ua haujlwm kom ua tiav nws daim ntawv thov tus nqi.
