1. Mechanical Properties ntawm Stainless Hlau
Yuav tsum muaj cov cuab yeej cuab tam yog ib txwm muab hauv kev yuav khoom tshwj xeeb rau stainless hlau. Yam tsawg kawg nkaus txhua yam khoom kuj tau muab los ntawm ntau yam qauv ntsig txog cov khoom siv thiab cov khoom siv. Ua raws li cov txheej txheem kev siv tshuab no qhia tau hais tias cov khoom siv tau raug tsim los rau qhov tsim nyog zoo. Cov kws kho tsheb tuaj yeem ntseeg siab siv cov khoom siv hauv cov qauv uas ua tau raws li kev nyab xeeb ua haujlwm thiab kev kub ntxhov.
Cov cuab yeej cuab tam tau teev tseg rau cov khoom lag luam tiaj tus yog ib txwm muaj zog tensile, tawm los kev ntxhov siab (lossis pov thawj kev ntxhov siab), elongation thiab Brinell lossis Rockwell hardness. Cov khoom uas yuav tsum tau muaj rau bar, raj, yeeb nkab thiab fittings feem ntau hais tias lub zog tensile thiab yield stress.
2. Yield zog ntawm Stainless hlau
Tsis zoo li cov hlau me me, lub zog tawm los ntawm annealed austenitic stainless hlau yog qhov qis heev ntawm lub zog tensile. Lub zog ntawm cov hlau me me feem ntau yog 65-70% ntawm lub zog tensile. Cov duab no tsuas yog 40-45% hauv tsev neeg austenitic stainless.
Txias ua hauj lwm sai heev thiab zoo heev tsub kom lub zog tawm los. Qee cov ntaub ntawv ntawm stainless hlau, zoo li lub caij nplooj ntoos hlav tempered hlau, tuaj yeem ua haujlwm txias kom nqa lub zog tawm mus rau 80-95% ntawm lub zog tensile.
3. Ductility ntawm Stainless hlau
Kev sib xyaw ua haujlwm siab hardening tus nqi thiab siab elongation / ductility ua rau stainless hlau yooj yim heev rau fabricate. Nrog rau cov cuab yeej no ua ke, stainless hlau tuaj yeem ua rau deformed hnyav hauv kev ua haujlwm zoo li kev sib sib zog nqus nqus.
Ductility yog ib txwm ntsuas raws li % elongation ua ntej tawg thaum kuaj tensile. Annealed austenitic stainless hlau muaj qhov tshwj xeeb siab elongations. Cov duab zoo li 60-70%.
4. Hardness ntawm Stainless hlau
Hardness yog qhov tsis kam mus rau qhov nkag ntawm cov khoom nto. Hardness testers ntsuas qhov tob uas ib qho nyuaj indenter tuaj yeem raug thawb mus rau saum npoo ntawm cov khoom. Brinell, Rockwell thiab Vickers tshuab tau siv. Txhua yam ntawm no muaj qhov sib txawv zoo li indenter thiab txoj kev siv lub zog paub. Kev hloov pauv ntawm cov ntsuas sib txawv yog li ntawd tsuas yog kwv yees.
Martensitic thiab nag lossis daus hardening qib tuaj yeem hardened los ntawm kev kho cua sov. Lwm qib tuaj yeem ua kom tawv nqaij los ntawm kev ua haujlwm txias.
5. Tensile zog ntawm Stainless hlau
Lub zog tensile feem ntau tsuas yog cov cuab yeej cuab tam yuav tsum tau txhais cov khoom siv bar thiab hlau. Cov ntaub ntawv zoo sib xws yuav raug siv ntawm ntau lub zog tensile rau kev siv sib txawv kiag li. Cov khoom siv tensile zog ntawm bar thiab hlau cov khoom ncaj qha cuam tshuam rau qhov kawg siv tom qab fabrication.
Lub caij nplooj ntoos hlav hlau nyiam muaj lub zog tensile siab tshaj plaws tom qab fabrication. Lub zog siab yog imparted los ntawm kev ua haujlwm txias rau hauv coiled springs. Yog tsis muaj lub zog siab no, cov hlau yuav tsis ua haujlwm zoo li lub caij nplooj ntoos hlav.
Xws li lub zog tensile siab tsis tas yuav tsum tau siv rau cov hlau los siv rau hauv kev tsim lossis kev sib tsoo. Hlau los yog bar siv los ua raw khoom rau fasteners, xws li bolts thiab screws, yuav tsum tau mos txaus rau lub taub hau thiab xov yuav tsum tau tsim tab sis tseem muaj zog txaus ua hauj lwm txaus.
Cov tsev neeg sib txawv ntawm cov hlau tsis muaj steel zoo li muaj qhov sib txawv tensile thiab yield zog. Cov yam ntxwv zoo li no rau cov khoom siv annealed tau teev tseg hauv Table 1.
Rooj 1. Hom lub zog rau annealed stainless hlau los ntawm ntau tsev neeg
| Tensile zog | Yield zog | |
| Austenitic | 600 | 250 |
| Duplex | 700 | 450 |
| Ferritic | 500 | 280 |
| Martensitic | 650 | 350 |
| Cov nag lossis daus Hardening | 1100 | 1000 |
6. Lub cev muaj zog ntawm Stainless Hlau
● Corrosion kuj
● Kub thiab kub tsis kam
● Yooj yim ntawm fabrication
● Lub zog muaj zog
● Kev thov kom zoo nkauj
● Kev huv thiab yooj yim ntawm kev tu
● Ntev lub neej voj voog
● Rov ua dua
● Tsawg sib nqus permeability
7. Corrosion Resistance ntawm Stainless Hlau
Zoo corrosion kuj yog ib tug feature ntawm tag nrho cov stainless hlau. Cov qib qis alloy tuaj yeem tiv taus corrosion hauv ib txwm muaj. Cov alloys siab dua tiv thaiv corrosion los ntawm feem ntau cov kua qaub, alkaline daws thiab chloride ib puag ncig.
Lub corrosion kuj ntawm stainless hlau yog vim lawv cov ntsiab lus chromium. Feem ntau, stainless hlau muaj qhov tsawg kawg nkaus ntawm 10.5% chromium. Cov chromium nyob rau hauv cov hlau ua ib tug kho tus kheej-kho tiv thaiv oxide txheej uas tsim spontaneously nyob rau hauv huab cua. Kev kho tus kheej ntawm cov txheej txheem oxide txhais tau hais tias qhov kev tiv thaiv corrosion tseem zoo li tsis hais txog kev tsim khoom. Txawm hais tias cov khoom nto raug txiav los yog puas, nws yuav kho tus kheej thiab corrosion kuj yuav raug tswj xyuas.
8. Kev kub ntxhov siab heev
Qee cov qib stainless hlau tuaj yeem tiv taus qhov ntsuas thiab khaws lub zog siab ntawm qhov kub siab heev. Lwm cov qib tswj cov cuab yeej ua haujlwm siab ntawm qhov kub thiab txias.
Siab zog ntawm Stainless hlau
Cov qauv tsim thiab kev tsim cov txheej txheem tuaj yeem hloov kho kom zoo dua ntawm kev ua haujlwm ntawm cov hlau tsis muaj steel uas tshwm sim thaum lawv ua haujlwm txias. Cov txiaj ntsig siab muaj zog tuaj yeem tso cai rau kev siv cov khoom siv thinner, ua rau qis qis thiab cov nqi.
Jindalai Steel Group yog ib lub chaw tsim khoom & Exporter ntawm stainless hlau kauj / ntawv / phaj / sawb / yeeb nkab. Muaj ntau tshaj 20 xyoo ntawm txoj kev loj hlob nyob rau hauv lub thoob ntiaj teb kev lag luam thiab tam sim no muaj 2 factories nrog ib tug muaj peev xwm ntawm ntau tshaj 400,000 tons ib xyoos twg. Yog tias koj xav tau cov ntaub ntawv ntau ntxiv txog cov ntaub ntawv stainless hlau, txais tos hu rau peb hnub no los yog thov cov lus hais.
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Post lub sij hawm: Dec-19-2022