Cov Hom Kev Kho Mob Kub rau Cov Hlau Stainless Forgings yog dab tsi?

Qib Hlau Stainless	Hom	Kev Siv Feem Ntau	Kev Kho Mob Kub Ib Txwm Muaj
304 / 304L	Austenitic	Khoom noj, tshuaj lom neeg, dej hiav txwv	Kev ua kom cov kua kub hnyiab
316 / 316L	Austenitic	Tshuaj lom neeg, marine, pharma	Kev ua kom cov kua kub hnyiab
410 / 420	Martensitic	Cov li qub, cov khoom siv turbine	Kev Kho Mob + Kev Kho Mob Kub
430	Ferritic	Cov khoom siv kho kom zoo nkauj, tsheb	Kev ua kom sov
17-4PH	Nag los hnyav.	Kev tsav dav hlau, nuclear	Kev laus (nag)

Cov Ntawv Kho Mob Kub rau Cov Hlau Stainless Forgings

1. Kev ua kom sov

Lub Hom Phiaj:

• Txo qhov nyuaj thiab txhim kho ductility

• Txo kev ntxhov siab sab hauv

• Txhim kho cov qauv ntawm cov noob

Txheej Txheem:

• Ua kom sov rau qhov kub tshwj xeeb (800–1100 ° C nyob ntawm qib)

• Tuav rau ib lub sijhawm teem tseg

• Txias qeeb qeeb, feem ntau nyob rau hauv lub cub tawg

Siv Rau:

• Ferritic (430)thiabmartensitic (410, 420)qib

• Ua kom mos tom qab ua haujlwm txias

• Txhim kho kev siv tshuab tau zoo

sakysteelmuab cov kev pabcuam annealing tswj kom ntseeg tau tias cov qauv microstructure sib xws thiab qhov mos tshaj plaws rau kev ua haujlwm.

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2. Kev Kho Mob Kua (Kev Kho Mob Kua)

Lub Hom Phiaj:

• Yaj cov carbides thiab precipitates

• Rov qab kho qhov corrosion tsis kam

• Ua tiav cov qauv austenitic homogeneous

Txheej Txheem:

• Kub txog ~ 1040–1120 ° C

• Kev tua hluav taws sai hauv dej lossis cua kom khov cov qauv

Siv Rau:

• Cov hlau tsis xeb Austenitic(304, 316)

• Qhov tseem ceeb tom qab vuam lossis ua haujlwm kub

• Tshem tawm cov chromium carbide precipitates thiab rov qab kho qhov corrosion tsis kam

sakysteelua kom cov tshuaj annealing ua raws li kev quenching tam sim ntawd kom tsis txhob muaj kev cuam tshuam thiab kev xeb intergranular.

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3. Kev Kho Kom Ruaj (Quenching)

Lub Hom Phiaj:

• Ua kom muaj zog thiab tawv dua

• Txhim kho kev hnav tsis kam

Txheej Txheem:

• Ua kom sov cov hlau tsis xeb martensitic txog ~ 950–1050 ° C

• Tuav kom austenitize cov qauv

• Kev tua hluav taws sai hauv roj lossis cua

Siv Rau:

• Cov hlau tsis xeb Martensitic(410, 420, 440C)

• Cov khoom uas xav tau qhov nyuaj ntawm qhov chaw (valves, bearings)

Lus Cim: Cov hlau Austenitic tsis tuaj yeem ua kom tawv los ntawm kev kho cua sov.

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4. Kev ua kom sov

Lub Hom Phiaj:

• Txo qhov brittleness tom qab hardening

• Ua kom muaj zog ntxiv

• Kho qhov nyuaj rau cov kev xav tau ntawm daim ntawv thov

Txheej Txheem:

• Ua kom sov txog 150–600 ° C tom qab ua kom tawv

• Tuav rau 1-2 teev nyob ntawm seb qhov loj ntawm ib feem

• Txias nyob rau hauv huab cua ntsiag to

Siv Rau:

• Cov hlau tsis xeb Martensitic

• Feem ntau ua ke nrog kev ua kom tawv hauv ob kauj ruam

sakysteeltswj cov voj voog tempering kom meej meej kom phim cov lus qhia kho tshuab rau txhua pawg.

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5. Kev Ua Kom Ruaj Khov Thaum Los Nag (Kev Laus)

Lub Hom Phiaj:

• Ua kom muaj zog los ntawm kev tsim cov precipitate zoo

• Ua tiav lub zog siab tsis muaj kev cuam tshuam ntau dhau

Txheej Txheem:

• Kho cov tshuaj ntawm ~ 1040 ° C thiab quench

• Khaws cia rau ntawm 480–620°C rau ob peb teev

Siv Rau:

• 17-4PH (UNS S17400)thiab cov hlau sib xws

• Cov khoom siv aerospace, nuclear, thiab cov khoom siv muaj zog siab

Cov txiaj ntsig:

• Qhov sib piv ntawm lub zog thiab qhov hnyav zoo heev

• Kev tiv thaiv xeb zoo

• Qhov tsawg kawg nkaus distortion piv rau martensitic hardening

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6. Kev Txo Kev Nyuaj Siab

Lub Hom Phiaj:

• Tshem tawm kev ntxhov siab sab hauv uas tshwm sim los ntawm kev siv tshuab, kev sib tsoo, lossis kev vuam

• Tiv thaiv kev hloov pauv ntawm qhov ntev thaum lub sijhawm ua haujlwm

Txheej Txheem:

• Kub txog 300–600°C

• Tuav rau ib lub sijhawm tshwj xeeb

• Txias qeeb qeeb

Siv Rau:

• Cov khoom loj loj uas tau ua los ntawm hlau

• Cov khoom siv ua tiav lawm

sakysteelmuab cov kev daws teeb meem kev ntxhov siab kom tswj tau qhov ruaj khov ntawm cov khoom sib xyaw ua ke.

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7. Kev ua kom zoo li qub (Tsis tshua muaj nyob rau hauv cov hlau tsis xeb)

Lub Hom Phiaj:

• Txhim kho qhov loj ntawm cov noob

• Txhim kho kev sib npaug ntawm cov qauv thiab cov khoom

Txheej Txheem:

• Kub rau saum qhov kub hloov pauv

• Cua txias rau chav tsev kub

Siv Rau:

• Feem ntau siv rau hauv cov hlau carbon thiab cov hlau alloy

• Qee zaum siv rau cov hlau tsis xeb ferritic

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Cov Yam Uas Cuam Tshuam Rau Kev Xaiv Kev Kho Mob Kub

• Qib hlau tsis xeb

• Qhov kub thiab txias ntawm kev pabcuam thiab tej yam kev mob

• Cov kev cai tiv thaiv corrosion

• Cov khoom siv kho tshuab xav tau

• Qhov loj thiab duab ntawm cov khoom

• Cov kauj ruam tom qab ua tiav (welding, machining)

Kev kho cua sov kom zoo ua kom cov hlau tsis xeb ua haujlwm tau zoo hauv cov chaw ib puag ncig nruj thiab ua tau raws li cov qauv kho tshuab.

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Kev Tswj Xyuas Zoo Hauv Kev Kho Mob Kub

At sakysteel, kev kho cua sov ntawm cov hlau tsis xeb yog ua nyob rau hauv cov cub tawg tswj nrog:

• Kev saib xyuas qhov kub thiab txias kom raug

• Kev taug qab thermocouplerau cov khoom loj

• Ua raws li ASTM A276, A182, A564 cov qauv

• Kev kuaj mob tom qab kho mobsuav nrog qhov nyuaj, tensile, thiab metallographic analysis

• EN 10204 3.1 / 3.2 ntawv pov thawjthaum thov

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Cov ntawv thov ntawm Cov Hlau Stainless Steel Forgings uas tau kho cua sov

• Flanges thiab FittingsCov tshuaj: annealed los yog normalized

• Cov Shafts thiab Cov Cheebtsam Valve: Hardened thiab tempered

• Cov Tsev Twj Tso Kua Mis: Kev ntxhov siab ploj mus

• Cov Khoom Siv Aerospace: Nag los ua kom tawv

• Cov Nkoj Siab: Annealed thiab kuaj raws li ASME cov qauv

sakysteelpabcuam cov neeg siv khoom hauv kev tsim hluav taws xob, marine, khoom siv khoom noj, roj & roj av, thiab ntau ntxiv.

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Xaus lus

Kev kho cua sov yog ib qho tseem ceeb hauv kev tsim khoom ntawm cov khoom siv hluav taws xobcov hlau tsis xeb, tso cai rau kev tswj hwm qhov tseeb ntawm lub zog kho tshuab, kev tiv thaiv corrosion, thiab cov qauv sab hauv. Nyob ntawm cov hlau thiab daim ntawv thov, kev kho cua sov yuav suav nrog kev annealing, kev kho cov tshuaj, hardening, tempering, kev txo kev ntxhov siab, lossis kev laus.

Los ntawm kev nkag siab txogcov qauv kho cua sov rau cov hlau tsis xeb, cov engineers thiab cov neeg yuav khoom tuaj yeem teev cov txheej txheem kom raug rau cov ntawv thov tseem ceeb. Ntawmsakysteel, peb muab cov kev pabcuam forging thiab cua sov tiav uas ua raws li cov qauv thoob ntiaj teb thiab cov lus qhia ntawm cov neeg siv khoom.