316 stainless hlau puas tuaj yeem hardened?
Dec 17, 2025
Tso lus
Yog tias koj tab tom tshawb nrhiav txoj hauv kev los txhim kho lub zog thiab ruaj khov ntawm cov hlau tsis muaj steel, tej zaum koj yuav xav tsis thoob: 316 stainless hlau puas tuaj yeem tawv? Nkag siab txog cov kev txwv thiab lub peev xwm ntawm hardening 316 stainless hlau yog ib qho tseem ceeb rau kev lag luam xws li aerospace, tshuaj ua, thiab marine ib puag ncig, qhov twg ob qho tib si corrosion kuj thiab mechanical zog yog qhov tseem ceeb.
Dab tsi yog 316 Stainless Hlau?
316 stainless hlau, feem ntau hu ua marine- qib stainless hlau, yog austenitic alloy paub txog nws qhov tshwj xeeb corrosion tsis kam thiab muaj peev xwm tiv taus qhov hnyav hnyav. Nws muaj molybdenum (2-3%) uas txhim kho nws txoj kev tiv thaiv rau pitting, crevice corrosion, thiab lwm yam kev tawm tsam los ntawm cov tshuaj thiab cov ntsev ntsev.
316 Stainless hlau tuaj yeem Hardened?
Tsis zoo li martensitic stainless hlau, 316 stainless hlau yog austenitic, txhais tau hais tias nws tsis muaj qhov tseem ceeb hardening los ntawm kev kho cua sov los yog quenching. Cov qauv austenitic ntawm 316 stainless hlau ua rau nws tsis yog - sib nqus thiab tiv taus kev ntxhov siab corrosion, tab sis nws kuj txhais tau hais tias cov khoom tsis tuaj yeem hardened los ntawm cov qauv zoo li quenching lossis tempering.
Txawm li cas los xij, thaum 316 stainless hlau tsis tuaj yeem hardened los ntawm kev kho cua sov, muaj ntau txoj hauv kev los txhim kho nws cov tawv nqaij tawv los yog hloov nws cov khoom siv tshuab:
Ua Haujlwm Hardening
316 stainless hlau tuaj yeem ua haujlwm tau- hardened los ntawm kev ua haujlwm txias xws li dov, kos duab, lossis khoov. Cov txheej txheem no suav nrog kev hloov kho cov khoom zoo li qub, uas ua rau muaj kev ntxhov siab hauv cov qauv crystalline, ua rau nws nyuaj thiab muaj zog. Cov ntaub ntawv nyuaj dua, qhov nyuaj dua nws yog kom ntxiv deform. Txawm li cas los xij, kev ua haujlwm hardening tsis hloov pauv qhov nyuaj heev tab sis tuaj yeem muab qee qhov kev txhim kho hauv cheeb tsam hauv cheeb tsam.
Kev kho nitride
Nto hardening tuaj yeem ua tiav los ntawm cov txheej txheem xws li nitriding lossis nitrocarburizing, qhov twg nitrogen los yog sib xyaw ntawm nitrogen thiab carbon yog nkag mus rau saum npoo ntawm cov hlau. Txoj kev no tsim ib qho nyuaj, hnav- txheej tiv thaiv rau saum npoo yam tsis muaj kev cuam tshuam cov khoom sab hauv. Txawm hais tias nws tsis ua 316 stainless hlau tiag tiag "hardened" nyob rau hauv ib txwm kev txiav txim siab, nws ua rau kom cov khoom tsis kam hnav, ua rau nws haum rau tej yam siab - kev siv kev ntxhov siab.
Tua Peening
Cov txheej txheem no suav nrog kev foob pob saum npoo ntawm 316 stainless hlau nrog cov hlaws me me, tawv tawv (lossis txhaj tshuaj). Cov txheej txheem induces residual compressive stresses nyob rau hauv txheej txheej, uas yuav txhim khu kev qaug zog tiv thaiv thiab nto hardness. Kev txhaj tshuaj peening feem ntau yog siv rau hauv kev lag luam xws li aerospace los txhim kho lub neej ntawm cov khoom raug rau cov khoom siv cyclic.
Kev Kho Cryogenic
Cryogenic ua tuaj yeem txhim kho qhov hnav tsis kam ntawm 316 stainless hlau. Qhov kev kho no suav nrog kev ua kom txias rau cov hlau kom tsis tshua muaj kub (hauv qab -100 degree) los hloov cov qauv austenitic me ntsis, txo cov austenite thiab nce hardness. Txawm hais tias cov txheej txheem no muaj qhov cuam tshuam loj dua rau qee cov hlau, nws qhov cuam tshuam rau 316 stainless hlau feem ntau txwv.
Cov yam ntxwv cuam tshuam rau hardness thiab lub zog ntawm 316 Stainless hlau
Kub: 316 stainless hlau tuav nws cov khoom zoo heev ntawm qhov kub txog li 870 degree. Dhau li ntawm qhov no, nws cov khoom siv kho tshuab tuaj yeem degrade, ua rau nws tsis haum rau siab - cov ntawv thov kub uas xav tau siab hardness.
Alloy Composition: Cov ntsiab lus molybdenum hauv 316 stainless hlau ua rau nws tiv taus corrosion ntau dua, tab sis nws kuj txwv cov hlau muaj peev xwm ua kom tawv tawv hauv cov lus pom zoo.
Ua hauj lwm hardening: Raws li tau hais, tus nqi ntawm kev ua hauj lwm hardening tiav nyob ntawm qhov℃ntawm deformation thaum lub sij hawm tsim khoom.
304 stainless hlau puas tuaj yeem hardened?
Tsis yog, koj tuaj yeem ua tsis tau 304 stainless hlau los ntawm kev kho cua sov (xws li quenching thiab tempering) vim nws yog austenitic stainless hlau. Txawm li cas los xij, koj tuaj yeem ua kom nws qhov nyuaj thiab lub zog los ntawm kev ua haujlwm txias (strain hardening). Tsis tas li ntawd, muaj qee qhov tshwj xeeb txoj kev kho deg, thiab koj tuaj yeem yuav "pre-hardened" (piv txwv li, ib nrab- nyuaj) 304 stainless hlau los ntawm cov tuam txhab hlau.
Dab tsi yog qhov nyuaj, 304 lossis 316 stainless?
Rockwell B hardness ntawm 304 stainless hlau yog feem ntau ntawm 70 thiab 90 HRB, nyob ntawm seb cov alloy muaj pes tsawg leeg thiab seb nws puas tau ua haujlwm txias lossis kho qhov chaw. Rockwell B hardness ntawm 316 stainless hlau feem ntau yog nyob nruab nrab ntawm 70 thiab 95 HRB, ua rau nws me ntsis nyuaj dua 304 stainless hlau. Cov ntsiab lus molybdenum siab dua ua rau muaj kev txhim kho toughness tab sis muaj kev cuam tshuam me ntsis ntawm hardness raws li cov qauv txheej txheem.
Dab tsi yog lwm cov ntaub ntawv rau daim ntawv thov uas yuav tsum tau siab hardness?
Yog tias koj xav tau kev ua haujlwm siab thiab hnav tsis kam, xav txog kev siv martensitic stainless hlau (xws li 440C) lossis cov cuab yeej hlau uas tau tsim tshwj xeeb rau kev siv tawv thiab hnav. Cov hlau no zoo tagnrho rau kev txiav cov cuab yeej, tuag, thiab lwm yam siab - siv hardness.
Gnee muaj cov khoom zoo -zoo 316 stainless hlau cov khoom, nrog rau cov phaj, cov kav dej, thiab cov raj, nrog rau ntau yam kev pabcuam xws li txiav, polishing, thiab kho qhov chaw kom tau raws li koj cov kev xav tau tshwj xeeb. Hu rau Gnee rau cov kws tshaj lij kev taw qhia thiab cov kev daws teeb meem rau koj qhov project.
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