Lerrophosphorus alloys feem ntau yog tsim ntawm cov hlau (fe) thiab phosphorus (p), nrog cov ntsiab lus phosphorus feem ntau yog li ntawm 15% mus rau 25%. Lawv tshwm sim raws li lumps lossis granules, nrog lub suab nrov ntawm kwv yees li 1100-1200℃thiab qhov ntom ntawm 7.2-7.5 g / cm³ .5 g / cm³ .5 g / cm³ .5 g / cm³ .5 g / cm³ .5 g / cm³ .5 g / cm³ .5 g / cm³ .5 g / cm³ .5 g /m³. Lawv cov tseem ceeb ntawm kev cuam tshuam rau cov khoom siv hlau los ntawm:
Qhov tsawg tsawg solubility ntawm phosphorus hauv cov hlau (tsuas yog hais txog 0.02% ntawm chav tsev kub), thiab ntau dhau los ua cov pa phosphides no xws li Fe₃p;
Qhov sib txawv hauv lub vojvoog ntawm phosphorus thiab Iron atoms ua rau lattice distortion tom qab kev daws teeb meem, ua rau muaj zog ua tau zoo;
Phosphorus muaj qhov muaj zog muaj zog los cais, yooj yim ntau yam ntawm cov ciaj ciam nplej thiab cuam tshuam qoob loo ciam tsev.
Cov teebmeem zoo ntawm FEP alloys ntawm cov khoom siv steel
(1) txhim kho lub zog thiab hardness (cov tshuaj tsis muaj zog ntxiv dag zog)
Phosphorus yog ib qho kev txhawb nqa tau zoo heev, txhim kho cov khoom siv me me ntawm cov khoom siv los ntawm cov tshuaj zoo zog zog siv zog
Tom qab phosphorus atomve abstolve, lawv ua rau muaj kev cuam tshuam lattice, tabkaum kev tshem tawm lub zog thiab kev nyuaj siab ntawm cov hlau. Cov ntaub ntawv qhia tau hais tias rau txhua 0.01% nce hauv phosphorus hauv qis {2} Lub zog ua kom nce los ntawm 6-10 MPa, thiab tawm los ua lub zog nce los ntawm 5-8 MPA.
Cov ntaub ntawv tsim nyog:Siv nyob rau hauv high - lub zog tsim lub zog (xws li HRB500E) thiab cov qauv txheej txheem zoo tib yam. Los ntawm kev ntxiv tus nqi tsim nyog ntawm ferrophosphorus alloy (tswj hwm cov phiaj xwm phosphorus hauv cov phiaj xwm engineering tuaj yeem ntsib tau yog tsis muaj nqis alloy.
(2) Txhim kho cov atmospheric corrosionance (synergistic nyhuv ntawm passivation zaj duab xis)
Phosphorus tuaj yeem synergistically Enhance corrospher tsis kam nrog cov khoom xws li tooj liab thiab chromium hauv cov hlau:
Phosphorus tuaj yeem tsim cov dense fere₂o₃ - p₂o₅ zaj duab xis ntawm cov khoom siv hlau (dej, oxygen) thiab txhim kho cov pa hluav taws xob tsis kam;
Cov Ntawv Thov Raug Raug:Nyob rau hauv kev tsim cov huab cua hlau (xws li Q450nqr1), phosphorus cov ntsiab lus hauv (0.30% -1.20%) los ua ib txheej xeb ruaj khov. Nws cov atmospheric corrosion tsis kam yog 2-3 zaug ntawm cov carbon hlau, ua rau nws haum rau choj, ntim, thiab sab nraum zoov qauv steel.
(3) Ua kom zoo rau kev ua haujlwm machining (nti tawg nyhuv)
Qhov tsim nyog ntawm phosphorus tuaj yeem txhim kho cov tshuab hluav taws xob ntawm cov hlau: phosphorus cov tshuaj yooj yim me ntsis, thiab txhim kho machining kev ua tau zoo.
Tsim nyog thov teev npe:Txhawm rau pub dawb -} Txiav cov hlau (xws li y15) siv nyob rau hauv cov kab mob phosphorus nyob rau hauv cov hlau los txog 20% -30% thiab txuas ntxiv cuab tam lub neej los ntawm 15% -20%.
Qhov cuam tshuam tsis zoo ntawm ferrophosphorus alloys ntawm cov khoom siv steel
(1) txo nruj thiab cov yas, ua kom txias brittleness (grain ciam segregation cov nyhuv)
Nov yog qhov cuam tshuam zoo tshaj plaws ntawm ferrophosphorus alloys thiab yuav tsum tau tswj nruj:
Phosphorus muaj kev nyiam nplej muaj zog rau cov qoob loo sib txawv, yooj yim}
Ntawm tsawg kub, cov noob thaj tsam ntawm cov kab mob hloov pauv ntawm kev hloov pauv ntawm cov hlau (piv txwv li 60-tus ntse txo qis ntawm cov kub kub, ua kom nrawm muaj feem ntau;
Thaum pib cov ntsiab lus: Thaum cov ntsiab lus phosphorus hauv cov hlau tshaj 0.04%, Qhov kev cuam tshuam nyuaj (K) poob los ntawm qis dua 50J / CM², thiab lub plab zom dej los ntawm 25% mus rau 15%. Cov hauv qab no tsis siv rau cov qib kev kawm qib kom raug rau tsawg- tej yam kev mob siab lossis xws li Choj Steel thiab siab txog Hlau Steel).
(2) Deterioration ntawm Weldability (nce li kev ua tau zoo rau kub tawg)
Phosphorus tau nce qhov kev pheej hmoo ntawm Weld Kub tawg hauv Hlau:
Thaum lub sij hawm vuam, phosphorus sai sai se sis-{{meling {{2} {2} {} {} {} {
Cov ntaub ntawv qhia tau hais tias thaum lub phosphorus ntsiab lus nyob rau hauv cov hlau loj dua li 0.03%, qhov tshwm sim ntawm vuam stabilizers (xws li mn), yog li nce cov nqi ntau lawm.
(3) phosphorus ntau dhau los ua rau muaj kev ua kom corrosion (micro-} cell nyhuv)
Cov ntsiab lus siab phosphorus cuam tshuam kev cuam tshuam cov kev sib xyaw corrosion ntawm hlau:
Phosphorus tshuaj ntawm cov ciaj ciam ntawm cov hmoov nplej ua rau cov pob zeb tsis sib xws ntawm cov chaw muaj sia, ua kom muaj zog} pitt-}
Qhov tsim nyog txwv: Cov ntsiab lus phosphorus hauv cov cuab yeej hlau yuav tsum tau tswj hwm hauv qab 0.12%. Tshaj dhau qhov kev txwv no nce cov nqi corrosion los ntawm ntau dua 50%, negating qhov zoo ntawm cov atmospheric corrosionance.
Cov tswv yim tswj hwm rau Ferrophosphorus alloy ntxiv thiab qib kev sib haum xeeb
Phosphorus ntsiab lus txwv rau cov qib steel sib txawv (xa mus rau GB / T 222 tus qauv)
| Qib hlau | Cov ntsiab lus tshaj plaws rau cov ntsiab lus phosphorus (p) | Pom zoo ntxiv tias ferrophosphorus alloy | Vim li cas rau cov qauv kev yoog |
| Cryogenic thawv hlau (piv txwv li, 16mndr) | Tsawg dua los yog sib npaug rau 0.025% | Ib qho ntxiv txwv tsis pub muaj. | Tiv thaiv kev brittleness txias thiab ua kom qis qis - kub cuam tshuam todight. |
| Choj steel (piv txwv li, q370qe) | Tsawg dua los yog sib npaug rau 0.030% | Ntxiv cov kev txwv | Yuav tsum tiv taus cov khoom siv tsis muaj zog, tiv thaiv kev pheej hmoo fracure |
| Huab Cua Hlau (piv txwv li, Q450NQR1) | Tsawg dua los yog sib npaug rau 0.12% | 0.05%-0.10% | Synergistically Enhaes corrosion tsis kam nrog CU thiab CR |
| High - Lub zog Tsim Hlau Qhov Cuab Lub Zog (HRB500E) | Tsawg dua los yog sib npaug rau 0.045% | 0.02%-0.04% | Lub zog ntsuas thiab tawv tawv, tswj cov nqi |
| Dawb -} Txiav Hlau (piv txwv li Y15) | Tsawg dua los yog sib npaug rau 0.15% | 0.08%-0.12% | Ua kom zoo tshaj plaws nti Kev ua tau zoo thiab txhim kho Machining efficiency |
Cov thev naus laus zis ntxiv rau kev tswj ntxiv
Muab xam tau:
Raws li thawj cov ntsiab lus phosphorus thawj zaug ntawm Molten Steel thiab qhov kev txwv rau lub hom phiaj Steel) kom tsis txhob suav cov lus "kom tsis txhob muaj ntau ntxiv;
Dispersed ntxiv:
Siv alloy ferrrophosphorus alloy yog siv thiab ntxiv rau Molten Steel nyob rau hauv ntws -}} los ntawm kev ua kom zoo nkauj thiab cais;
Alloying:
Ntxiv Manganese (MN) tuaj yeem thim cov phosphorus cais cov chaw (MN sib txuas nrog S kom tsim cov mns, feem ntau tswj mn / p ntau dua los yog sib npaug rau 10.
