Hauv ntiaj teb ntawm cov ntaub ntawv engineering siab heev,15-7PH stainless hlausawv tawm ua ib qho ntawm cov hlau tsis xeb uas muaj zog tshaj plaws thiab muaj zog tshaj plaws niaj hnub no. Nws muaj peev xwm los sib xyaw ua kezoo heev mechanical zog, corrosion kuj, thiab thermal stabilityua rau nws yog ib qho khoom siv zoo tagnrho rau cov lag luam uas xav tau kev ntseeg siab nyob rau hauv cov xwm txheej hnyav.
Hauv tsab xov xwm no,SAKYSTEELmuab ib qho kev piav qhia ntxaws ntxaws txog15-7PH stainless hlau yog dab tsi, nwstshuaj lom neeg muaj pes tsawg leeg, cov khoom tseem ceeb, thiabcov ntawv thov kev lag luam tseem ceeb, pab cov engineers thiab cov kws tshwj xeeb hauv kev yuav khoom txiav txim siab thaum xaiv cov ntaub ntawv rau cov khoom ua haujlwm siab.
1. 15-7PH Stainless Steel Yog Dab Tsi?
15-7PH stainless hlau(UNS S17700, tseem hu ua Hom 15-7 PH lossis 631 alloy) yog ib qhocov hlau tsis xeb martensitic uas ua kom nag lossis daus-hardeningmuaj kwv yees li15% chromium thiab 7% nickel, nrog rau cov ntxiv ntawmtxhuaslos pab txhawb kev ua kom tawv los ntawm kev kho cua sov.
Lub npe "PH" txhais tau tiasKev Ua Kom Nag Los, ib qho txheej txheem kho cua sov uas ua rau cov hlau muaj zog dua los ntawm kev tswj cov dej nag ntawm cov khoom sib xyaw intermetallic zoo hauv cov qauv hlau.
Tsim tawm los ua kev txhim kho dua17-7PHthiab17-4PH, 15-7PH muab qhov sib npaug ntawmmuaj zog heev, tiv taus corrosion thiab zoo heev formability, ua rau nws haum rau ob qho tib sikev tsav dav hlauthiabkev lag luamcov ntawv thov.
2. Cov Tshuaj Lom Zem
Cov tshuaj lom neeg uas tswj tau zoo ntawm 15-7PH stainless hlau yog qhov tseem ceeb rau nws qhov kev ua tau zoo tshaj plaws.
| Khoom | Cov Ntsiab Lus Ib Txwm Muaj (%) | Kev Ua Haujlwm |
|---|---|---|
| Chromium (Cr) | 14.0 – 16.0 | Kev tiv thaiv corrosion thiab hardness |
| Nickel (Ni) | 6.5 – 7.8 | Kev ruaj khov thiab kev ruaj khov ntawm cov matrix martensitic |
| Txhuas (Al) | 0.75 – 1.5 | Cov khoom siv ua kom tawv thaum los nag |
| Cov pa roj carbon (C) | ≤ 0.09 | Lub zog tsis txo qhov ductility |
| Manganese (Mn) | ≤ 1.0 | Deoxidizer thiab lub zog enhancer |
| Silicon (Si) | ≤ 1.0 | Txhim kho kev tiv thaiv oxidation |
| Phosphorus (P) | ≤ 0.04 | Khaws cia qis kom tsis txhob muaj brittleness |
| Sulfur (S) | ≤ 0.03 | Tswj rau kev siv tshuab tau |
| Hlau (Fe) | Qhov Nyiaj Tshuav | Lub hauv paus ntsiab lus |
Cov khoom sib xyaw no tso cai rau cov hlau hloov pauv los ntawm austenitic mus rau martensitic theem los ntawm kev kho cua sov, uas tom qab ntawd tuaj yeem laus kom tau txais lub zog siab thiab tawv.
3. Microstructure thiab Metallurgy
Hauv nws cov kua-annealed mob, 15-7PH yogaustenitic, txhais tau tias nws tuaj yeem tsim thiab tsim tau yooj yim. Tom qabua haujlwm txiasthiabkev kho cua sov, nws hloov mus ua ib qhomartensiticcov qauv, uas muab nws lub zog siab.
Thaum laus (feem ntau ntawm 510–565 ° C),cov av uas muaj txhuasxws liNi₃Altsim nyob rau hauv lub matrix. Cov khoom me me no ua rau muaj zog thiab ua rau muaj zog, thaum tswj tau qhov tawv thiab tiv taus corrosion.
4. Cov Khoom Siv Tseem Ceeb
Cov lus hauv qab no piav qhia txog cov khoom siv kho tshuab ntawm 15-7PH stainless hlau hauv cov xwm txheej kho cua sov sib txawv:
| Mob | Lub Zog Tawm (MPa) | Lub zog Tensile (MPa) | Kev ntev (%) | Qhov nyuaj (HRC) |
|---|---|---|---|---|
| Cov tshuaj Annealed (Zoo li cas A) | 850 | 1050 | 15–20 | 25–30 |
| Mob CH900 | 1300 | 1450 xyoo | 5–8 | 42–46 |
| Mob RH950 | 1170 | 1300 | 8–12 | 40–44 |
Cov txiaj ntsig no qhia tau tias cov hlau alloy muaj peev xwm ua tauua kom muaj zog heev tom qab laus, feem ntau piv rau cov hlau tsis muaj hlau tsawg, tab sis nrog rau qhov txiaj ntsig ntxiv ntawmkev tiv thaiv xebfeem ntau ntawm cov qib stainless.
5. Cov yam ntxwv tseem ceeb thiab cov txiaj ntsig
5.1 Lub Zog Siab thiab Kev Nyuaj Siab
Tom qab laus lawm, 15-7PH tsim cov zog tawm los siab dua1300 MPa, uas tso cai rau cov neeg tsim qauv kom txo qhov tuab thiab qhov hnyav ntawm cov khoom tseem ceeb.
5.2 Kev Tiv Thaiv Kev Sib Tsoo Zoo heev
Cov chromium ntau ua rau 15-7PH tiv taus zoo heev rau kev xeb hauv huab cua thiab cov tshuaj lom neeg tsis muaj zog. Nws ua tau zoo hauvtub rog dej hiav txwvthiabkev lag luamatmospheres, txawm hais tias tsis yog corrosion-resistant li tag nrho austenitic qib zoo li 316.
5.3 Kev Ua Tau Zoo
Hauv nws qhov mob annealed (A), cov khoom siv tuaj yeem ua tauyooj yim tsim, kos, lossis khoov, ua rau nws tsim nyog rau cov khoom sib xyaw uas tom qab ntawd tau kho cua sov rau lub zog siab.
5.4 Kev Tiv Thaiv Kev Qaug Zog thiab Kev Nyuaj Siab Zoo Tshaj Plaws
Cov qauv me me, sib xws tom qab laus muab 15-7PH lub zog qaug zog zoo heev thiab tiv taus kev ntxhov siab corrosion cracking, txawm tias nyob rau hauv cov xwm txheej cyclic loading.
5.5 Kev Ruaj Ntseg ntawm Qhov Ntev
Nws qhia txog qhov tsawg kawg nkaus distortion thaum lub sijhawm kho cua sov thiab kev tswj hwm zoo heev, ua rau nws zoo tagnrho raucov khoom siv kho tshuab precision.
6. Kev Kho Mob Kub thiab Kev Ua Haujlwm
15-7PH tuaj yeem kho cua sov rau ntau yam kub kom ua tiav cov khoom siv kho tshuab tshwj xeeb.
Kauj Ruam 1: Kev Kho Cov Tshuaj (Zaj A)
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Kub rau1038°C (1900°F)rau 1 teev thiab cua txias.
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Cov khoom siv tseem yog austenitic thiab yooj yim tsim.
Kauj Ruam 2: Kev Hloov Pauv Mus Rau Martensitic Mob (Tshuaj TH1050)
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Ua haujlwm txias (feem ntau 60–70% txo) los ua kom muaj cov qauv martensitic.
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Tom qab ntawd cua sov rau565°C (1050°F)rau 1 teev thiab cua txias.
Kauj Ruam 3: Kev Kho Mob Thaum Laus (Mob RH950)
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Muaj hnub nyoog thaum510°C (950°F)rau 1–4 teev.
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Cov txiaj ntsig ua rau muaj qhov nyuaj thiab lub zog siab tshaj plaws.
Kev tswj cov kauj ruam no kom zoo ua kom muaj cov khoom sib xws thoob plaws cov khoom loj lossis nyuaj.
7. Cov Khoom Siv Lub Cev
| Vaj tse | Tus nqi |
|---|---|
| Qhov Ceev | 7.8 g/cm³ |
| Modulus Elastic | 200 GPa |
| Kev Ua Kub | 16.7 W/m·K |
| Tus lej ntawm kev nthuav dav | 10.9 × 10⁻⁶ /°C |
| Kev Tiv Thaiv Hluav Taws Xob | 0.00074 Ω·cm |
Cov kev ntsuas lub cev no tso cai rau 15-7PH ua tau zoo hauv ob qho tib si qis thiab nruab nrab siab txog li550°C (1020°F).
8. Kev Sib Piv Nrog Lwm Cov Hlau Stainless PH
| Vaj tse | 15-7PH | 17-4PH | 17-7PH |
|---|---|---|---|
| Lub ntsiab lus tseem ceeb ntawm kev ua kom tawv | Aluminium | Tooj liab | Aluminium |
| Lub zog (laus lawm) | Siab heev | Siab | Nruab Nrab |
| Kev Tiv Thaiv Kev Xeb | Zoo | Zoo heev | Zoo |
| Kev Tsim Khoom | Zoo heev | Zoo | Zoo heev |
| Max Ua Haujlwm Temp | 550°C | 315°C | 425°C |
| Kev coj cwj pwm sib nqus | Sib nqus tom qab laus | Sib nqus | Sib nqus |
15-7PH stainless hlaucov kev pab cuammuaj zog dua thiab muaj peev xwm kub duapiv rau 17-4PH thiab 17-7PH, thaum tswj kev ua haujlwm zoo corrosion thiab kev yooj ywm fabrication.
9. Cov ntawv thov ntawm 15-7PH Stainless Steel
Vim nws qhov kev sib xyaw ua ke ntawm lub zog, kev tawv, thiab kev tiv thaiv corrosion, 15-7PH yog siv dav hauv cov ntawv thov tseem ceeb uas kev ntseeg siab yog qhov tseem ceeb.
9.1 Kev Lag Luam Dav Hlau
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Cov Springs, diaphragms, thiab bellows
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Cov khoom siv thiab cov khoom siv rau lub dav hlau
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Cov actuators ua haujlwm tau zoo
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Cov khoom siv hauv tsev uas raug cua sov thiab kev ntxhov siab
9.2 Cov Khoom Siv Tshuaj thiab Petrochemical
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Cov hlab ntsha siab thiab cov khoom siv valve
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Cov txheej txheem tshuaj lom neeg thiab cov ntsaws ruaj ruaj
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Cov ncej uas tiv taus xeb
9.3 Kev Tsim Hluav Taws Xob
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Cov cuab yeej tuav turbine
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Cov bolts thiab pins uas tiv taus cua sov
9.4 Tsheb thiab Kev Lag Luam
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Precision springs thiab washers
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Cov cuab yeej muaj zog thiab cov khoom siv ntsuas
Vim nwskev ua haujlwm qaug zog zoo heev, 15-7PH muaj nqis tshwj xeeb hauv cov khoom uas raug raukev thauj khoom rov ua dua.
10. Kev Siv Tshuab thiab Kev Tsim Khoom
10.1 Kev Siv Tau Tshuab
Cov tshuab 15-7PH zoo ib yam li cov hlau tsis xeb 17-4PH. Nws yuav tsum tau tshuab hauvmob annealedkom txo qhov kev hnav ntawm cov cuab yeej. Tom qab laus lawm, cov khoom siv yuav tawv dua thiab xav tau cov cuab yeej carbide.
10.2 Kev vuam
Nws tuaj yeem raug welded siv cov txheej txheem fusion ib txwm muaj, xws liGTAW (TIG)thiabGMAW (MIG)Txawm li cas los xij, kev kho cua sov tom qab vuam raug pom zoo kom rov qab kho qhov corrosion tsis kam thiab lub zog.
10.3 Kev Tsim
Hauv nws qhov xwm txheej annealed, 15-7PH muaj kev ua tau zoo. Tom qab ua haujlwm txias thiab laus, nws tawv heev, txwv tsis pub ua haujlwm ntxiv.
11. Kev Tiv Thaiv Kev Xeb Hauv Kev Nthuav Dav
15-7PH ua tau zoo hauv ntau qhov chaw xws li:
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Cov huab cua hauv dej hiav txwv
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Cov kua qaub me ntsis
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Cov pa roj thiab cov pa dej ua lag luam
Txawm li cas los xij, nws yogtsis pom zoo rau cov chaw muaj kua qaub ntau lossis muaj chloride ntauzoo li kev muab dej rau hauv dej hiav txwv, qhov twg tej zaum yuav muaj qhov pitting. Rau qhov tiv taus xeb siab tshaj plaws, qhov chaw yuav tsum tau ntxuav thiab passivated kom zoo tom qab tsim khoom.
12. Kev Ua Haujlwm Kub
Cov hlau nplaum tswj nws cov khoom siv kho tshuab txog li550°C (1020°F), qhov uas kev laus dhau yuav txo qhov muaj zog. Nws kuj tseem khaws tau qhov tawv thiab lub zog qaug zog ntawm qhov kub qis dua xoom, ua rau nws siv tau rau ob qho tib si kub thiab txias.
13. Kev Tswj Xyuas Zoo thiab Daim Ntawv Pov Thawj
At SAKYSTEEL, tag nrho cov khoom siv hlau tsis xeb 15-7PH yog tsim tawm raws licov txheej txheem tswj xyuas zoo, xyuas kom meej:
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Kev nrhiav tau tag nrho thiab kev txheeb xyuas tus lej cua sov
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Kev tshuaj ntsuam xyuas cov tshuaj lom neeg los ntawm spectrometer
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Kev kuaj xyuas txhua yam rau txhua pawg
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Kev tshuaj xyuas ultrasonic thiab nto
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Daim ntawv pov thawj raws li EN 10204 3.1 / 3.2 cov qauv
(Lub logo SAKYSTEEL)
14. Cov Qauv Khoom Siv Los Ntawm SAKYSTEEL
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Cov Tuav thiab Cov Qws Sib Hloov:Txias kos, tev tawv, av, lossis tsis muaj qhov chaw ci ntsa iab
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Cov Phaj & Cov Ntawv:Kub dov los yog txias dov
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Hlau & Sawb:Precision caij nplooj ntoos hlav hlau rau aerospace thiab kev siv hauv kev lag luam
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Cov Khoom Siv Forging:Kev cai duab raws li cov lus qhia ntawm tus neeg siv khoom
SAKYSTEEL muab cov qhov loj me uas hloov tau yooj yim, kev pab txiav, thiabkev xa khoom sai thoob ntiaj tebkom ua tau raws li lub sijhawm ua haujlwm.
15. Cov txiaj ntsig ntawm kev xaiv 15-7PH los ntawm SAKYSTEEL
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Kev lees paub tseeb ntawm Alloy- Txheeb xyuas los ntawm PMI thiab kev taug qab tus lej cua sov
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Cov Khoom Siv Kho Vaj Tse Ruaj Khoov- Lub zog thiab qhov nyuaj sib xws hauv txhua pawg
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Kev Kho Mob Kub Tshaj Plaws- Muaj mob A, TH1050, thiab RH950
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Kev Ua tiav zoo heev- Cov kev xaiv ci ntsa iab lossis ci ntsa iab rau cov khoom siv precision
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Kev Paub Txog Kev Xa Khoom Thoob Ntiaj Teb- Ua raws li ASTM, AMS, thiab EN cov qauv
SAKYSTEELtau muab cov ntaub ntawv 15-7PH raukev lag luam aerospace, kev tiv thaiv, marine, thiab tshuaj lom neegthoob plaws Asia, Europe, thiab North America.
16. Kev Sib Piv: 15-7PH piv rau 17-4PH hauv Cov Kev Siv Tiag
| Vaj tse | 15-7PH | 17-4PH |
|---|---|---|
| Qhov nyuaj (Max HRC) | 46 | 42 |
| Kub Ua Haujlwm | Txog li 550 ° C | Txog li 315 ° C |
| Lub zog qaug zog | Siab dua | Nruab nrab |
| Kev vuam tau | Zoo | Zoo heev |
| Kev siv tshuab tau | Nruab nrab | Zoo dua |
| Piv txwv daim ntawv thov | Cov Caij Nplooj Ntoos Hlav, Cov Diaphragms, Cov Li Qub | Cov Ncej, Cov Bolts, Cov khoom twj tso kua mis |
Raulub zog kub siab thiab kev ua haujlwm qaug zog, 15-7PH ua tau zoo dua 17-4PH. Thaum qhov vuam tau zoo thiab tus nqi yog qhov tseem ceeb, 17-4PH yuav raug xaiv dua.
17. Cov Lus Qhia Txog Kev Khaws Cia thiab Kev Siv Khoom
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Khaws cia rau hauvthaj chaw qhuav, huv sikom tsis txhob muaj kuab paug thiab xeb.
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Tsis txhob kov cov hlau carbon thaum lub sijhawm tuav.
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Sivcov khoom sib cais uas tsis yog hlauthaum muab cov ntaub los yog cov hlau sib dhos ua ke.
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Siv cov txheej tiv thaiv los yog qhwv rau cov khoom xa tawm.
Kev tuav kom zoo yuav khaws cov alloy qhov zoo ntawm qhov chaw thiab kev ua haujlwm corrosion.
18. Xaus Lus
15-7PH stainless hlauyog ib qho khoom siv uas muaj zog heev, uas ua rau cov hlau uas muaj nag lossis daus khov kho uas muaj kev sib xyaw ua ke ntawmkev ua tau zoo ntawm txhua yam khoom, kev tiv thaiv corrosion, thiab thermal stability.
Nrog nws lub peev xwm los ua kom tau qhov muaj zog tshaj 1300 MPa thiab tswj kev ruaj khov txog li 550 ° C, nws yog qhov kev xaiv zoo heev rauaerospace, petrochemical, thiab kev siv high-precision industrial.
At SAKYSTEEL, peb muab cov ntaub ntawv stainless hlau 15-7PH uas tau ntawv pov thawj nrog kev taug qab tag nrho, kev ua tiav qhov tseeb, thiab qhov loj me raws li qhov xav tau los txhawb peb cov neeg siv khoom cov haujlwm xav tau tshaj plaws.
Thaum kev ua tau zoo, kev ntseeg siab, thiab qhov zoo tseem ceeb - kev ntseeg siabSAKYSTEELrau koj cov kev daws teeb meem stainless hlau.
Lub sijhawm tshaj tawm: Lub Kaum Hli-29-2025