Austenitic Stainless Steel yog dab tsi?

Cov hlau tsis xeb Austenitic yog ib hom hlau tsis xeb uas siv ntau tshaj plaws hauv kev lag luam vim nws txoj kev tiv taus xeb zoo heev, kev ua kom zoo nkauj, thiab cov khoom tsis muaj hlau nplaum. Txawm hais tias koj koom nrog kev tsim kho, kev ua zaub mov, kev tsim tshuaj lom neeg, lossis kev tsim khoom siv kho mob, tej zaum koj tau ntsib cov hlau tsis xeb austenitic yam tsis paub txog nws.

Hauv tsab xov xwm no, peb yuav piav qhia txogdab tsi yog austenitic stainless hlau, nws cov yam ntxwv tseem ceeb, nws piv li cas nrog lwm hom hlau tsis xeb, thiab nws cov ntawv thov. Yog tias koj yog tus neeg yuav khoom siv lossis tus kws ua vaj tse uas tab tom nrhiav kev meej meej hauv kev xaiv cov hlau zoo, phau ntawv qhia no los ntawmsakysteelyuav pab koj txiav txim siab tau zoo.

1. Kev Txhais Lus: Austenitic Stainless Steel Yog Dab Tsi?

Austenitic stainless hlau yog ib pawg ntawm stainless hlau txhais los ntawm nws covLub ntsej muag-centered cubic (FCC) crystal qauv, hu ua tustheem austeniteCov qauv no ruaj khov ntawm txhua qhov kub thiab khaws cia txawm tias tom qab txias los ntawm qhov kub siab.

Cov hlau tsis xeb Austenitic yogtsis yog-sib nqus nyob rau hauv lub annealed mob, muajMuaj chromium ntau (16–26%)thiabnpib tsib xee (6–22%)cov ntsiab lus, thiab kev muabkev tiv thaiv corrosion zoo dua, tshwj xeeb tshaj yog piv rau lwm cov tsev neeg stainless hlau.

2. Cov Tshuaj Lom Zem

Cov yam ntxwv tshwj xeeb ntawm cov hlau austenitic stainless hlau los ntawm nws cov tshuaj lom neeg:

• Chromium: Muab kev tiv thaiv xeb thiab tsim ib txheej oxide tiv thaiv rau ntawm qhov chaw.

• Nickel: Ua kom cov qauv austenitic ruaj khov thiab txhim kho ductility.

• Molybdenum (xaiv tau): Txhim kho kev tiv thaiv rau qhov xeb pitting thiab crevice hauv cov chaw chloride.

• Nitrogen: Txhim kho lub zog thiab kev tiv thaiv corrosion.

• Cov pa roj carbon (qis heev): Tswj kom tsis txhob muaj carbide precipitation thiab tswj kev tiv thaiv corrosion.

Cov qib siv dav xws li 304 thiab 316 stainless hlau yog ib feem ntawm pawg no.

3. Cov Yam Ntxwv Tseem Ceeb ntawm Austenitic Stainless Steel

1. Kev Tiv Thaiv Kev Kub Ntxhov Zoo heev

Cov hlau tsis xeb Austenitic muaj zog tiv taus ntau yam kev xeb. Qhov no suav nrog kev xeb hauv huab cua, kev raug zaub mov thiab dej haus, thiab cov tshuaj lom neeg me me mus rau nruab nrab.

2. Cov Khoom Uas Tsis Yog Sib Nqus

Hauv cov mob annealed, cov hlau stainless austenitic feem ntau tsis yog hlau nplaum. Txawm li cas los xij, kev ua haujlwm txias tuaj yeem ua rau muaj hlau nplaum me ntsis vim yog kev tsim cov martensite.

3. Kev vuam zoo

Cov hlau no tuaj yeem vuam tau yooj yim siv cov txheej txheem vuam feem ntau. Tej zaum yuav tsum tau ceev faj tshwj xeeb kom tsis txhob muaj carbide los nag rau qee qib.

4. Kev du thiab kev tawv siab

Cov qib Austenitic tuaj yeem rub, khoov, thiab ua rau ntau yam duab yam tsis tawg. Lawv tseem muaj zog ntawm ob qho tib si kub thiab txias.

5. Tsis muaj cua sov hardening

Tsis zoo li cov hlau tsis xeb martensitic, cov qib austenitic tsis tuaj yeem ua kom tawv los ntawm kev kho cua sov. Lawv feem ntau ua kom tawv los ntawm kev ua haujlwm txias.

4. Cov Qib Feem Ntau ntawm Austenitic Stainless Steel

• 304 (UNS S30400)
  Cov hlau tsis xeb feem ntau siv. Kev tiv taus xeb zoo heev, zoo formability, tsim nyog rau ntau yam lag luam.

• 316 (UNS S31600)
  Muaj molybdenum rau kev tiv thaiv corrosion zoo dua, tshwj xeeb tshaj yog nyob rau hauv cov chaw chloride xws li marine lossis ntug dej hiav txwv.

• 310 (UNS S31000)
  Kev ua haujlwm kub siab, siv rau hauv qhov cub tawg thiab cov khoom sib pauv cua sov.

• 321 (UNS S32100)
  Ruaj khov nrog titanium, zoo tagnrho rau cov ntawv thov kub siab uas muaj carbide precipitation yog qhov txhawj xeeb.

Txhua qib ntawm cov no muaj nyob rau hauv ntau hom xws li daim ntawv, cov kav dej, cov tuav, thiab cov khoom siv, thiab tuaj yeem muab los ntawmsakysteelrau koj cov kev xav tau ntawm qhov project.

5. Cov ntawv thov ntawm Austenitic Stainless Steel

Ua tsaug rau lawv cov khoom sib npaug, cov hlau tsis xeb austenitic siv rau hauv ntau qhov chaw:

1. Kev Lag Luam Khoom Noj thiab Dej Haus

304 thiab 316 feem ntau yog siv rau cov khoom siv ua zaub mov, cov thoob dej, thiab cov khoom siv vim lawv txoj kev huv thiab kev tiv taus xeb.

2. Kev Lag Luam Tshuaj thiab Tshuaj

316L yog qhov nyiam rau cov reactors, cov kav dej, thiab cov li qub uas raug rau cov tshuaj lom neeg vim nws tiv taus cov chlorides zoo dua.

3. Cov Khoom Siv Kho Mob thiab Phais Mob

Vim lawv qhov huv thiab biocompatibility, cov hlau tsis xeb austenitic yog siv rau cov cuab yeej phais, cov khoom cog, thiab cov khoom siv hauv tsev kho mob.

4. Kev Tsim Kho Vaj Tse thiab Kev Tsim Kho

Siv rau hauv cladding, handrails, facades, thiab choj vim yog qhov zoo nkauj thiab tiv taus kev xeb ib puag ncig.

5. Tsheb thiab Kev Thauj Mus Los

Cov tshuab tso pa tawm, cov khoom siv, thiab cov khoom siv hauv tsev tau txais txiaj ntsig los ntawm kev sib xyaw ua ke ntawm lub zog thiab kev tiv taus corrosion.

6. Cov Khoom Siv Hloov Kub thiab Cov Boilers

Cov qib siab dua xws li 310 yog siv rau hauv qhov chaw kub siab vim lawv tsis kam oxidation.

6. Yuav ua li cas Austenitic piv nrog lwm cov hlau tsis xeb