Kev daws annealing, tseem hu ua kev kho kev daws teeb meem, yog cov txheej txheem kev kho cua sov feem ntau siv los txhim kho cov kev tiv thaiv corrosion, cov khoom siv kho tshuab, thiab cov qauv sib xws ntawm cov hlau tsis muaj steel.
annealing yog dab tsi?
Annealingyog cov txheej txheem kho cua sov tsim los txhim kho cov ductility thiab kev ua haujlwm ntawm cov ntaub ntawv los ntawm kev txo cov hardness thiab txo cov kev ntxhov siab sab hauv. Cov txheej txheem suav nrog kev tswj cua sov rau qhov kub thiab txias, tuav ntawm qhov ntsuas kub kom tso cai rau kev hloov pauv, thiab tom qab ntawd maj mam txias - feem ntau hauv qhov cub. Annealing txhim kho cov khoom siv microstructure, ua rau nws zoo ib yam thiab ruaj khov. Nws yog feem ntau siv rau cov hlau xws li hlau, tooj liab, thiab tooj dag, nrog rau cov ntaub ntawv zoo li iav thiab qee cov polymers los ua kom zoo dua lawv cov khoom siv kho tshuab thiab ua haujlwm.
Annealed Stainless hlau yog dab tsi?
Annealed stainless hlauyog stainless hlau uas tau undergone annealing tshav kub kev kho mob los txhim kho nws cov yam ntxwv. Cov txheej txheem no suav nrog cua sov cov hlau mus rau qhov ntsuas kub thiab tom qab ntawd maj mam txias kom txo cov kev ntxhov siab sab hauv, txhim kho ductility, thiab muag cov khoom. Yog li ntawd, annealed stainless hlau muaj superior machinability, txhim kho formability, thiab txhim khu corrosion kuj piv rau nws cov counterpart tsis kho.
Lub hom phiaj ntawm Stainless Steel Annealing yog dab tsi?
1.Eliminate Intergranular Precipitates thiab Restore Corrosion Resistance
Los ntawm dissolving chromium carbides (xws li, Cr₃C₂) rov qab mus rau hauv austenitic matrix, kev kho tshuaj tiv thaiv kev tsim ntawm chromium-depleted aav, zoo txhim kho kev tiv thaiv intergranular corrosion.
2.Achieve ib homogeneous Austenitic Microstructure
Cua sov stainless hlau mus rau qhov kub thiab txias (feem ntau 1050 ° C - 1150 ° C) ua raws li cov quenching sai sai nyob rau hauv ib tug uniform thiab ruaj khov austenitic theem, uas txhim kho tag nrho cov khoom ua tau zoo.
3. Txhim kho Ductility thiab Toughness
Cov kev kho mob txo cov kev ntxhov siab sab hauv thiab txhawb nqa cov nplej ua kom zoo dua qub, ua rau kom zoo dua formability thiab cuam tshuam.
4. Txhim kho Machinability
Rau txias-ua hauj lwm stainless steels, kev daws annealing tshem tawm ua hauj lwm hardening teebmeem, pab yooj yim machining thiab sib sau ua tom qab ua.
5. Npaj cov khoom siv rau kev kho cua sov ntxiv
Kev daws annealing muab lub hauv paus tsim microstructural rau cov txheej txheem xws li kev laus los yog vuam, tshwj xeeb tshaj yog rau nag lossis daus-hardened lossis duplex stainless hlau.
Piv txwv ntawm cov hom steel siv
• Austenitic stainless hlau (xws li 304, 316, 321): Tshem tawm intergranular corrosion nyiam
• Cov nag lossis daus hardening stainless hlau (xws li 17-4PH): Kev kho tshuaj ua raws li kev laus
• Duplex stainless hlau (xws li 2205, 2507): Kev kho tshuaj yog siv kom tau txais qhov zoo tshaj plaws austenite + ferrite piv
Post lub sij hawm: May-16-2025