1.What yog qhov sib txawv ntawm cov tshuaj lom neeg nruab nrab ntawm 15 - 7 mo thiab 654smo cov kav hlau stainless hlau?
{{015 - 7 mo yog ib semi - ustenitic stainless hlau. Nws cov tshuaj lom neeg feem ntau suav nrog cov pa roj carbon (c) txog li 0.09%, sulfium (p) txog li 0.0-3}}%, molybdenum (mo) ntawm {{92.00 - 3.00}, tooj liab (cu) los ntawm2.50 - 4.50%, thiab txhuas (al) nyob rau hauv qhov ntau ntawm {}}%. Qhov no muaj kab ke no tso nws nrog kev ua siab loj, muaj lub zog siab, thiab txo qis thaum lub sijhawm kho kom sov.
Ntawm qhov tod tes, 654smo (uns unrert s32654, w. nr . 1.4652) yog tus qauv loj me me. Nws muaj kwv yees li 23% npib tsib xee, 25% chromium, thiab 7% molybdenum. Ib qho ntxiv, nws muaj cov pa roj carbon (c) cov ntsiab lus ntawm tsawg dua lossis sib npaug ntawm 0.50%, MNAGORE tsawg dua lossis sib npaug lossis 0./) Tooj (CU) los ntawm {{%, nitrogen (n) los ntawm 0.45 - 0.55%, nrog qhov sib npaug yog hlau (fe). Cov qib siab ntawm chromium, npib tsib xee, nrog rau cov ntsiab lus nitrogen tsis kam, uas yog piv rau qee qhov zoo tshaj plaws nickel- raws li alloys.
2.Yog ua li cas thiaj ua tau cov neeg kho tshuab ntawm 15 - 7 mo thiab 654smo stainless hlau kav hlau piv?
15 - 7}} thiab cov kav hlau stainless ua kom muaj zog siab. Lawv tuaj yeem ua cua sov {-}}}}}}}}}}}}}}}}} Cov khoom siv xws li khaws cov nplhaib, bulkheads, thiab cov dav hlau. Tom qab kev kho cua sov kom tsim nyog, nws muab lub zog tensile zoo thiab tawm lub zog, ua rau nws tiv taus cov kev ntxhov siab tshwj xeeb.
654smo stainless hlau kav muaj ib qho txiaj ntsig lub zog
Rp0.2 ntau dua los yog sib npaug rau 430
MPa, uas yog qhov tseem ceeb. Cov ntsiab lus siab ntawm alloy cov ntsiab xws li chromium, npib tsib xee, thiab molybdenum tsis yog pab txhawb rau nws zoo heev corrosion tsis kam tab sis kuj rau nws cov kev kho tshuab zoo. Hais txog kev qaug zog tsis kam, ob qho tib si alloys ua tau zoo nyob rau hauv lawv cov ntawv thov-} kev ntxhov siab tshwj xeeb. Txawm li cas los xij, 654smo, nrog nws cov cim muaj pes tsawg leeg, yog tsim los tswj nws cov khoom siv hnyav, uas yuav muaj canclic ib puag ncig hauv kev lag luam thiab roj, offshore platforms, thiab flue gas desulfurization.
3.Qhov yog cov ntawv thov tseem ceeb ntawm15 - 7 mo thiab 654smo stainless hlau kav, thiab vim li cas lawv xaiv rau cov ntawv thov no?
{{0 {}} mo stainless hlau kav yog ib txwm siv hauv kev lag luam aerospace. Piv txwv li, hauv cov dav hlau sib xyaw, nws lub zog siab {{2} {{} Qhov muaj peev xwm ua kom ruaj khov, ua rau nws xaiv qhov zoo tshaj plaws, ua rau nws xaiv qhov zoo tshaj plaws. Hauv kev khaws ib ncig thiab bulkheads, {{5 5}} mo mo tuaj yeem tiv thaiv cov haujlwm dav hlau uas cuam tshuam nrog kev ua haujlwm aircract thaum ib puag ncig ntawm ib puag ncig.
654smo stainless hlau kav nrhiav ntau yam hauv kev lag luam uas muaj ib puag ncig muaj xeb. Hauv cov roj thiab roj kev lag luam, tshwj xeeb hauv cov tshuaj tua kab mob, cov khoom siv hiav txwv siab ua 654smo cov khoom siv dej hiav txwv thiab cov pitting zoo tshaj plaws. Nyob rau hauv flue roj desulfurization tshuab, qhov chaw ib puag ncig acidic thiab muaj corrosive gases, 654smo tuaj yeem tiv taus qhov ntev {}} lub sij hawm durability ntawm cov khoom siv. Nws tseem siv nyob rau hauv kev lag luam xws li cov khib nyiab, tsis - rerrous metallgy, thiab cov dej hiav txwv uas nws tuaj yeem hloov ua kom ntub dej, cov mob ntawm cov neeg nyob ntau dua.
4.Qhov cov txheej txheem ntau lawm rau 15 - 7 mo thiab 654smo cov kav hlau stainless hlau?
Rau 15 - 7}} thiab cov txheej txheem ntau lawm yuav pib nrog xaiv cov khoom siv raw raws nws cov tshuaj lom neeg tshwj xeeb. Cov hlau yuav tau melted nyob rau hauv ib lub rauv hluav taws xob ua kom sov lossis lwm txoj kev tsis haum los ua kom tiav kev faib tawm kom zoo. Tom qab melting, nws tuaj yeem muab pov rau hauv cov tsiaj xev. Cov pob ntses no tuaj yeem yog kub -}}}} - kos rau hauv cov yeeb nkab qauv. Cov txheej txheem cua sov xws li annealing thiab tempering feem ntau nqa tawm los ua kom zoo rau cov neeg kho tshuab thiab microstructure ntawm {}} mo kav.
654smo stainless hlau kav muaj cov txheej txheem ntau ntxiv hauv qee yam vim nws qhov tshwj xeeb muaj pes tsawg leeg. Ib qho ib txwm smelting txoj kev yog argon - e oxygen decarburization yuav tsum muaj rau nws high- kev ua haujlwm. Lwm txoj kev txuas ntxiv txuas ntxiv. Thaum nws los ua kom cov kav dej, puag ncig steel nruab nrab yog thawj zaug. Txij li 654smo yog qhov nyuaj thiab nplaum thaum lub sijhawm ua kom zoo nkauj thiab muaj feem ntau rau eccentricity lossis tawg, xav tau kev saib xyuas ntxiv. Tom qab zoo nkauj, nws tuaj yeem raug chob thiab tom qab ntawd txias- rolled los yog txias- drawn nyob rau hauv ib tug dov zeb. Txawm hais tias tus txheej txheem no nce mus ntxiv tus nqi, nws tuaj yeem lav tus nqi siab ua tiav hauv kev ua tsis taus qhov tsis muaj mob- pa dawb kav. Tom qab tsim txheej txheem, kev kho cua sov thiab kho cov txheej txheem tshuaj xyuas zoo yog ua kom cov neeg kav dej tau raws li cov qauv yuav tsum tau ua.
5.How ua cov corrosion tsis kam ntawm15 - 7 mo thiab 654smo stainless hlau kav txawv txawv?
15 - 7}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} stainless kav muaj cov kev lag luam siab thiab ntau qhov chaw muaj kev lag luam. Kev sib xyaw ntawm chromium, npib tsib xee, thiab lwm cov ntsiab lus alloy rau cov txheej txheej oxide thoob plaws hauv av, uas tiv thaiv cov hlau hauv qab los ntawm kev xeb. However, compared to 654SMO, its corrosion resistance in extremely harsh, highly acidic, or high - chloride - ion - containing environments is somewhat limited.
654smo stainless hlau kav muaj cov corrosion tsis kam. Nyob rau hauv seaterwater, nws muaj qhov zoo tshaj plaws corrosion tsis kam thiab kev nyuaj siab zoo corrosion tsis kam raws li kev npau taws, qhov sib txawv, thiab qis} ceev erosion. Nws tuaj yeem tiv thaiv corrosion nyob rau hauv ib puag ncig nrog muaj zog acidity, siab chloride ions, thiab kev mob siab rau kev mob siab ntawm kev kub siab dua. Raws li cov penposion tawm tsam {{} PREFOST kub (CCT) 22, qhia nws lub siab - theem qib corrosion distance nyob rau hauv kev ua kom muaj zog.
