Cov hlau tsis xeb muaj ntau qib, txhua qib tau tsim los muab cov yam ntxwv kev ua tau zoo tshwj xeeb. Ntawm lawv,440C stainless hlausawv tawm ua ib qhocov hlau tsis xeb martensitic uas muaj cov pa roj carbon ntau, cov chromium ntaupaub txog nwszoo heev hardness, hnav tsis kam, thiab corrosion tsis kamNws yog dav siv rau hauv cov ntawv thov kev ua tau zoo uas qhov kev tuav ntug, lub zog, thiab kev ua haujlwm ntev yog qhov tseem ceeb.
Peb tshawb nrhiav qhovcov yam ntxwv, cov khoom siv kho tshuab, thiab kev siv ib txwm muajntawm 440C stainless hlau. Txawm koj koom nrog kev tsim qauv kev lag luam, kev tsim khoom, cov cuab yeej, lossis kev tsim khoom siv kho mob, tsab xov xwm no yuav muab cov kev nkag siab tseem ceeb rau vim li cas 440C stainless hlau yog qhov kev xaiv nrov rau cov ntawv thov uas xav tau ntau.
At sakysteel, peb tshwj xeeb hauv kev muab cov hlau tsis xeb 440C zoo tshaj plaws hauv ntau hom thiab qhov ntau thiab tsawg, ua tau raws li qhov xav tau ntawm cov lag luam thoob ntiaj teb. Tiv tauj pebsakysteelrau kev txhawb nqa los ntawm cov kws tshaj lij, kev nrhiav khoom siv tau zoo, thiab cov kev daws teeb meem khoom siv uas tsim tshwj xeeb.
1. 440C Stainless Steel yog dab tsi?
440C stainless hlauyog ib qhomartensitic stainless hlau alloynrog cov theem siab ntawmcarbon thiab chromiumNws yog ib feem ntawm 400 series thiab yog qib tiv taus corrosion tshaj plaws ntawm 440 stainless hlau (440A, 440B, thiab 440C).
Cov Qauv Txheem ntawm 440C:
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Cov pa roj carbon (C): 0.95% – 1.20%
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Chromium (Cr): 16.0% – 18.0%
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Manganese (Mn)≤ 1.0%
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Silicon (Si)≤ 1.0%
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Molybdenum (Mo): Xaiv tau hauv qee cov versions rau kev ntxiv zog
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Nickel (Ni): Cov nqi ib txwm muaj
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Hlau (Fe): Sib npaug
Cov khoom no tso cai rau 440C kom ncav cuagsiab hardness (txog li 60 HRC)thaum kho cua sov, thaum tseem muab kev tiv thaiv corrosion zoo.
2. Cov Yam Ntxwv Tseem Ceeb ntawm 440C Stainless Steel
a) Kev Nyuaj Siab thiab Lub Zog
Thaum kho cua sov kom zoo, 440C tuaj yeem ua tiavRockwell hardness theem ntawm 58 rau 60 HRC, ua rau nws yog ib qho ntawm cov hlau tsis xeb uas nyuaj tshaj plaws. Qhov no ua rau nws haum rau:
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Cov cuab yeej txiav
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Cov khoom siv bearing
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Cov khoom siv precision
b) Kev Hnav Zoo thiab Kev Tiv Thaiv Kev Sib Txhuam
Vim nws cov pa roj carbon ntau,440Cqhia tauzoo heev tsis kam rau qhov hnav ntawm qhov chaw, kev hloov pauv ntawm ntug, thiab kev qaug zog ntawm lub cev - zoo tagnrho rau kev swb lossis kev sib hloov.
c) Kev Tiv Thaiv Zoo Corrosion
Txawm hais tias tsis tiv taus xeb zoo li 300 series stainless hlau, 440C ua tau zoo hauv qhov chaw xeb me me mus rau nruab nrab. Nws tuaj yeem tiv taus:
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Cov dej noo
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Cov kua qaub hauv zaub mov
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Cov tshuaj lom neeg me me
Txawm li cas los xij, nws yogtsis pom zoorau kev siv dej hiav txwv lossis cov tshuaj chloride ntau yam tsis muaj kev kho kom zoo.
d) Sib Nqus thiab Kho Tau Kub
440C yogsib nqusnyob rau hauv txhua qhov xwm txheej thiab tuaj yeem ua tautawv los ntawm kev kho cua sov txheem, ua rau nws yooj yim hloov kho rau ntau yam kev siv tshuab thiab kev teeb tsa.
3. Cov Khoom Siv Kho Tshuab ntawm 440C
| Vaj tse | Tus nqi (Ib txwm muaj, Mob tawv) |
|---|---|
| Lub zog tensile | 760 – 1970 MPa |
| Lub Zog Tawm | 450 – 1860 MPa |
| Kev ntev thaum tawg | 10 – 15% |
| Qhov nyuaj (Rockwell HRC) | 58 – 60 |
| Modulus ntawm Elasticity | ~200 GPa |
| Qhov Ceev | 7.8 g/cm³ |
Cov nqi no tuaj yeem sib txawv nyob ntawm kev kho cua sov thiab cov txheej txheem tsim khoom.
4. Kev Kho Mob Kub
Kev ua tau zoo ntawm 440C stainless hlau yogzoo heev los ntawm kev kho cua sovCov txheej txheem feem ntau suav nrog:
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Kev ua kom tawvKub txog 1010–1065°C (1850–1950°F)
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Kev tua hluav tawsSiv roj los yog cua kom cov khoom tawv
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Kev ua kom sovFeem ntau, qhov kub thiab txias yuav tsum tau ua kom sov li ntawm 150–370°C (300–700°F) kom txo qhov brittleness thiab ua kom muaj zog ntxiv.
Kev kho cua sov 440C qhia tau tiasqhov siab tshaj plaws hardness thiab zoo heev mechanical zog, uas yog qhov tseem ceeb rau cov cuab yeej precision thiab cov ntug txiav.
5. Cov Ntawv Thov Siv ntawm 440C Stainless Steel
Vim nws qhov sib npaug ntawm qhov nyuaj, hnav tsis kam, thiab tiv taus corrosion nruab nrab, 440C pom muaj nyob rau hauv ntau yam kev thov:
a) Cov Cuab Yeej Txiav
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Cov hniav phais
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Cov hniav riam
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Cov riam siv rau kev lag luam
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Txiab
b) Cov Bearings thiab Cov Cheebtsam Valve
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Cov kabmob pob
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Cov rooj zaum valve thiab cov qia
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Koob rau cov menyuam bearings
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Cov pins pivot
c) Kev Ua Haujlwm Huab Cua thiab Kev Tiv Thaiv
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Cov khoom siv ua haujlwm dav hlau
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Cov qauv txuas
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Cov khoom siv phom thiab cov khoom siv phom
d) Cov Cuab Yeej Kho Mob
440C qhov biocompatibility thiab lub peev xwm los tswj cov npoo ntse ua rau nws haum rau:
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Cov cuab yeej kho hniav
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Cov cuab yeej phais
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Cov pob txha caj qaum (tsis ruaj khov)
e) Kev Lag Luam Pwm thiab Tuag
Nws txoj kev tiv taus kev hnav ua rau nws haum rau:
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Cov pwm txhaj tshuaj yas
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Tsim cov tuag
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Cov khoom siv cuab yeej
sakysteelmuaj 440C stainless hlau hauv cov ntawv, phaj, pas nrig, thiab tuav rau cov no thiab lwm yam kev siv. Nrog kev taug qab tag nrho thiab kev lees paub zoo,sakysteelua kom muaj kev ua tau zoo rau cov haujlwm tseem ceeb.
6. Cov Kev Txwv ntawm 440C Stainless Steel
Txawm hais tias 440C yog cov khoom siv ua tau zoo, nws tsis zoo tagnrho rau txhua qhov xwm txheej:
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Kev tiv thaiv corrosion yog txwvnyob rau hauv dej hiav txwv lossis cov chaw muaj chloride ntau
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Kev tawv qis duapiv rau cov qib austenitic
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Tej zaum yuav tawg yooj yimntawm qhov nyuaj heev tshwj tsis yog tias ua tib zoo tempered
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Kev siv tshuab ua haujlwm yuav nyuajnyob rau hauv lub xeev hardened
Rau cov ntawv thov uas xav tau kev ua haujlwm siab dua lossis kev tiv thaiv corrosion, 316 lossis duplex stainless hlau yuav yog lwm txoj hauv kev zoo dua.
7. Cov Kev Xaiv Ua Kom Tiav Qhov Chaw
440C stainless hlau tuaj yeem muab tau ntau yam xim tiav, nyob ntawm qhov xav tau siv kawg:
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Annealed: Rau kev ua haujlwm yooj yim thiab ua ntej ua kom tawv
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Sib tsoo los yog polished: Rau kev zoo nkauj lossis kev ua haujlwm kom raug
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Hardened thiab tempered: Rau cov cuab yeej siv thiab kev siv hnav
At sakysteel, peb muabkev kho kom haum rau qhov chaw tiav thiab qhov ntevrau 440C stainless hlau kom haum rau cov neeg siv khoom xav tau.
8. 440C vs Lwm Cov Hlau Stainless
| Qib | Qhov nyuaj | Kev Tiv Thaiv Kev Xeb | Cov ntawv thov |
|---|---|---|---|
| 304 | Qis | Zoo heev | Kev siv dav dav ntawm cov qauv |
| 316 | Qis | Zoo tshaj plaws | Khoom noj khoom haus, tshuaj, tshuaj marine |
| 410 | Nruab nrab | Nruab nrab | Cov cuab yeej yooj yim, cov khoom siv txuas |
| 440C | Siab | Nruab nrab | Cov cuab yeej precision, bearings |
440C yog qhov kub thiab txiasnyuaj tshaj plawsthiab feem ntautsis yooj yim hnavntawm cov no, txawm hais tias muaj qhov tsis kam tiv taus corrosion me ntsis.
Xaus lus
440C stainless hlauyog qhov kev xaiv zoo tshaj plaws thaumqhov nyuaj tshwj xeeb, kev hnav tsis kam, thiab kev tiv thaiv corrosion nruab nrabyog qhov yuav tsum tau ua. Nws yog siv dav hauv kev lag luam xws li aerospace thiab automotive mus rau kev kho mob thiab cov cuab yeej. Nws lub peev xwm los ua kom tawv rau qib siab thaum tswj kev tiv thaiv xeb tsim nyog ua rau nws yog ib qho ntawm feem ntaucov hlau tsis xeb martensitic ntau yammuaj.
Kev nkag siab txog nws cov yam ntxwv tso cai rau cov engineers thiab cov neeg yuav khoom xaiv cov khoom siv zoo tshaj plaws rau kev siv ntev thiab ua haujlwm tau zoo.
Rau cov hlau tsis xeb 440C zoo nrog cov ntawv pov thawj tag nrho thiab cov kev pabcuam ntxiv xws li kev txiav, kev txhuam, thiab kev kho cua sov,sakysteelyog koj tus neeg muag khoom ntseeg siab. Tiv taujsakysteelhnub no kom tau txais tus nqi lossis tham txog koj cov kev xav tau ntawm qhov project.
Lub sijhawm tshaj tawm: Lub Xya Hli-28-2025