Dab tsi yog qhov zoo tshaj plaws Non-Magnetic Stainless Steel?

Thaum xaiv cov hlau tsis xeb rau cov ntawv thov uas xav tau ob qho tib si kev tiv thaiv corrosion thiab tus cwj pwm tsis muaj hlau nplaum, cov engineers thiab cov neeg tsim qauv feem ntau ntsib cov lus nug no:Dab tsi yog qhov zoo tshaj plaws stainless hlau uas tsis yog hlau nplaum?
Tsis yog txhua cov hlau tsis xeb yog tsim sib npaug - thaum feem ntau tiv taus xeb thiab corrosion, tsuas yog qee qib tseem tsis muaj hlau nplaum txawm tias tom qab tsim lossis ua haujlwm txias.

Hauv tsab xov xwm no, peb yuav tshawb nrhiav seb cov hlau tsis xeb twg tsis muaj hlau nplaum tiag tiag, dab tsi ua rau lawv tshwj xeeb, thiab qhov twg yog qhov kev xaiv zoo tshaj plaws rau cov lag luam uas xav tau ntau yam xws li kev tsim kho dej hiav txwv, cov khoom siv kho mob, kev ua zaub mov, thiab cov khoom siv hluav taws xob. Ua tus neeg muab khoom thoob ntiaj teb,SAKYSTEELmuaj cov hlau tsis xeb zoo tshaj plaws uas sib xyaw cov khoom tsis muaj hlau nplaum nrog kev ua tau zoo dua.

1. Nkag Siab Txog Kev Sib Nqus Hauv Cov Hlau Stainless

Magnetism hauv stainless hlau nyob ntawm nwscov qauv siv lead ua, uas txiav txim siab seb cov atoms raug teeb tsa li cas thiab seb lawv puas tuaj yeem sib dhos hauv qab lub zog sib nqus. Muaj peb lub qauv tseem ceeb:

• Austenitic (Tsis yog Magnetic)- Lub ntsej muag-centered cubic (FCC) qauv; ruaj khov, tsis muaj hlau nplaum txawm tias nyob rau hauv qhov kub qis.

• Ferritic (Sib nqus)- Lub cev-centered cubic (BCC) qauv; ntuj magnetic vim atomic alignment.

• Martensitic (Sib nqus)- Lub cev tetragonal (BCT) qauv; hardenable thiab muaj zog magnetic.

Cov hlau tsis xeb Austenitic yog tib tsev neeg ntawm cov hlau tsis xeb uas tseem tsis yog hlau nplaum hauv lawv qhov xwm txheej annealed, feem ntau vim lawv cov siabnickel thiab chromiumcov ntsiab lus.

2. Dab tsi ua rau Stainless Steel tsis yog hlau nplaum?

Cov khoom tsis yog hlau nplaum hauv cov hlau tsis xeb yog los ntawmtheem austeniticruaj khov los ntawm nickel. Nickel hloov cov qauv lattice sab hauv los ntawm lub cev-centered cubic (BCC) mus rau lub ntsej muag-centered cubic (FCC), tiv thaiv cov magnetic domains los ntawm kev sib phim.

Cov hlau muaj nickel thiab nitrogen ntau npaum li cas, cov qauv austenitic ruaj khov dua, uas ua rau ob qho kev ua haujlwm tsis muaj hlau nplaum thiab kev tiv thaiv corrosion zoo dua.

Vim li no, cov hlau tsis muaj hlau nplaum zoo tshaj plaws feem ntau muaj:

• Siabnpib tsibcov ntsiab lus (8% lossis ntau dua)

• Nruab nrabchromium(18% lossis siab dua)

• Xaiv taumolybdenum or nitrogenlos txhim kho kev tiv thaiv corrosion

3. Cov Qib Hlau Stainless Uas Tsis Muaj Hlau Sib Nqus

A. 304 Cov Hlau Stainless

Cov hlau tsis xeb uas siv dav tshaj plaws hauv ntiaj teb, 304 (UNS S30400) muaj li ntawm 18% chromium thiab 8% nickel. Nws tsis yog hlau nplaum hauv lub xeev annealed tab sis yuav tsim me ntsis magnetism tom qab ua haujlwm txias lossis vuam.
Cov ntawv thov:Cov khoom siv hauv chav ua noj, cov tso tsheb hlau luam, cov tshuab ua zaub mov, cov vaj huam sib luag vaj tse.

B. 316 Cov Hlau Stainless

Hu ua "marine grade," 316 (UNS S31600) muaj 16–18% chromium, 10–14% nickel, thiab 2–3% molybdenum. Kev ntxiv molybdenum txhim kho kev tiv thaiv kev xeb ntawm qhov pitting thiab crevice hauv dej ntsev lossis cov chaw acidic.
Cov ntawv thov:Khoom siv kho vajtse hauv dej hiav txwv, kev ua tshuaj lom neeg, cov cuab yeej kho mob.

C. 310 Cov Hlau Stainless

Cov hlau no uas tiv taus kub heev muaj 25% chromium thiab 20% nickel. Nws tseem tsis muaj hlau nplaum thiab muaj zog txawm tias nyob rau hauv qhov chaw kub heev.
Cov ntawv thov:Cov khoom siv rau lub cub tawg, cov khoom hloov pauv cua sov, thiab cov chav hlawv.

D. 321 Cov Hlau Stainless

Ruaj khov nrog titanium, 321 stainless hlau tiv taus carbide precipitation thaum lub sijhawm vuam, tswj hwm tus cwj pwm tsis muaj hlau nplaum.
Cov ntawv thov:Aerospace, cov pa tawm, thiab kev ua cov tshuaj lom neeg.

E. 904L Cov Hlau Stainless

Ib qib super austenitic uas muaj cov nickel ntau (24–26%), chromium (19–23%), thiab molybdenum (4–5%), nrog rau tooj liab ntxiv rau kom zoo dua qub tiv taus kua qaub. Nws tsis yog hlau nplaum txawm tias tom qab ua haujlwm txias hnyav, ua rau nws yog ib qho ntawm cov kev xaiv zoo tshaj plaws rau cov ntawv thov tseem ceeb.
Cov ntawv thov:Offshore, petrochemical, tshuaj, thiab cov tshuab kev lag luam siab heev.

4. Cov Hlau Stainless Uas Tsis Muaj Hlau Sib Nqus Zoo Tshaj Plaws: 316L thiab 904L

Ntawm ntau yam qib tsis yog hlau nplaum,316Lthiab904Lsawv tawm ua cov kev xaiv zoo tshaj plaws thaum ua ke kev tiv thaiv corrosion, lub zog kho tshuab, thiab cov khoom ruaj khov tsis yog hlau nplaum.

316L Stainless Steel - Marine Grade Excellence

• Cov ntsiab lus carbon tsawg:Txo cov carbide precipitation thaum lub sijhawm vuam, ua kom nws tsis muaj hlau nplaum.

• Kev Tiv Thaiv Kev Tiv Thaiv Zoo Tshaj Plaws:Ua tau zoo heev hauv dej hiav txwv thiab cov chaw muaj chloride.

• Muaj Dav Dav:Pheej yig thiab yooj yim rau tshuab, vuam, thiab txhuam.

316L tseem yog ib qho ntawm cov hlau tsis muaj hlau nplaum uas txhim khu kev qha tshaj plaws rau kev lag luam uas xav tau kev tu cev huv thiab kev tiv thaiv xeb.

904L Stainless Steel - Cov Khoom Siv Uas Tsis Yog Hlau Sib Nqus Zoo Tshaj Plaws

• Cov Khoom Siv Super Austenitic:24–26% Ni, 4–5% Mo, thiab me ntsis ntxiv tooj liab muab kev tiv taus kua qaub zoo dua.

• Tiag tiag tsis yog hlau nplaum:Txawm tias tom qab tsim, khoov, lossis vuam, 904L tseem khaws nws tus cwj pwm tsis yog hlau nplaum.

• Siv Tau Ntev Heev:Kev tiv taus zoo heev rau cov kua qaub sulfuric, phosphoric, thiab acetic.

• Cov Ntawv Thov Siab Tshaj Plaws:Siv rau hauv cov nroj tsuag tshuaj, kev tsim kho marine, thiab txawm tias cov khoom kim heev watchmaking vim nws cov khoom zoo nkauj thiab tiv thaiv magnetic.

Hauv luv luv,316Lyog qhov zoo tshaj plaws txhua yam uas tsis yog hlau nplaum stainless hlau rau kev siv dav dav hauv kev lag luam thiab kev siv hauv dej hiav txwv, thaum904Lyog qhov kev xaiv zoo tshaj plaws rau cov chaw ua haujlwm hnyav lossis cov ntawv thov precision qhov twg tsis muaj hlau nplaum yog qhov tseem ceeb.

5. Cov Ntawv Thov Uas Yuav Tsum Tau Cov Hlau Stainless Uas Tsis Yog Hlau Sib Nqus

Cov hlau tsis xeb uas tsis yog hlau nplaum yog siv rau hauv cov lag luam uas qhov kev sib nqus tuaj yeem cuam tshuam rau kev ua haujlwm lossis kev nyab xeeb.

A. Cov Khoom Siv Kho Mob thiab Cov Khoom Siv Kuaj Mob

Cov tshuab luam theej MRI, cov cuab yeej phais, thiab cov cuab yeej biomedical siv 316L thiab 904L vim tias lawv tsis ua rau cov duab magnetic tsis zoo lossis tsim kev cuam tshuam electromagnetic.

B. Cov Qauv Dej Hiav Txwv thiab Offshore

316L thiab 904L ua haujlwm tau zoo heev hauv cov dej ntsev, ua rau lawv zoo tagnrho rau kev tsim nkoj, cov chaw lim dej, thiab cov khoom hauv qab dej hiav txwv.

C. Kev Ua Khoom Noj thiab Dej Haus

Cov hlau tsis xeb uas tsis muaj hlau nplaum tiv thaiv kev ua qias tuaj, ua kom huv si, thiab tiv taus cov tshuaj ntxuav acidic uas siv rau hauv kev tsim khoom noj.

D. Khoom Siv Hluav Taws Xob thiab Kev Caij Dav Hlau

Cov khoom siv uas tsis yog hlau nplaum tiv thaiv kev cuam tshuam nrog cov sensors rhiab heev, navigation systems, thiab electronic circuits.

E. Cov Chaw Tsim Tshuaj thiab Petrochemical

904L yog qhov zoo dua rau cov tso tsheb hlau luam, cov kav dej, thiab cov reactors uas raug rau cov kua qaub muaj zog, chlorides, thiab cov neeg sawv cev oxidizing.

6. Sib piv cov hlau tsis muaj hlau nplaum uas tsis yog hlau nplaum