Kev ua kom cov kua qaub, tseem hu ua kev kho cov kua qaub, yog cov txheej txheem kho cua sov uas feem ntau siv los txhim kho kev tiv thaiv xeb, cov khoom siv kho tshuab, thiab kev sib xws ntawm cov hlau tsis xeb.
Kev ua kom sov yog dab tsi?
Kev ua kom sovyog ib txoj kev kho cua sov uas tsim los txhim kho qhov ductility thiab workability ntawm cov ntaub ntawv los ntawm kev txo qhov nyuaj thiab txo cov kev ntxhov siab sab hauv. Cov txheej txheem no suav nrog kev tswj cua sov rau qhov kub tshwj xeeb, tuav ntawm qhov kub ntawd kom tso cai rau kev hloov pauv ntawm cov qauv, thiab tom qab ntawd qeeb qeeb txias - feem ntau hauv lub cub tawg. Annealing txhim kho cov khoom siv microstructure, ua rau nws sib xws thiab ruaj khov dua. Nws feem ntau siv rau cov hlau xws li hlau, tooj liab, thiab tooj dag, nrog rau cov ntaub ntawv xws li iav thiab qee cov polymers kom zoo dua lawv cov khoom siv kho tshuab thiab kev ua haujlwm.
Dab tsi yog Annealed Stainless Steel?
Cov hlau tsis xeb uas tau annealedyog cov hlau tsis xeb uas tau dhau los ntawm kev kho cua sov annealing los txhim kho nws cov yam ntxwv. Cov txheej txheem no suav nrog kev ua kom sov cov hlau mus rau qhov kub thiab tom qab ntawd txias nws maj mam kom txo qhov kev ntxhov siab sab hauv, txhim kho ductility, thiab mos cov khoom. Yog li ntawd, cov hlau tsis xeb annealed muaj kev siv tshuab zoo dua, txhim kho formability, thiab txhim kho corrosion tiv thaiv piv rau nws cov tsis kho.
Lub Hom Phiaj ntawm Stainless Steel Annealing yog dab tsi?
1. Tshem tawm cov Intergranular Precipitates thiab Rov Qab Kho Corrosion Resistance
Los ntawm kev yaj cov chromium carbides (piv txwv li, Cr₃C₂) rov qab rau hauv austenitic matrix, kev kho cov kua tiv thaiv kev tsim cov cheeb tsam chromium-depleted, zoo txhim kho kev tiv thaiv rau intergranular corrosion.
2. Ua tiav ib qho Homogeneous Austenitic Microstructure
Kev ua kom cov hlau tsis xeb kub txog li 1050°C–1150°C tom qab ntawd ua kom nws kub sai sai ua rau muaj theem austenitic sib npaug thiab ruaj khov, uas ua rau cov khoom siv ua haujlwm tau zoo dua.
3. Txhim kho Ductility thiab Toughness
Kev kho mob no txo cov kev ntxhov siab sab hauv thiab txhawb kev ua kom cov noob zoo nkauj, ua rau muaj kev ua tau zoo dua thiab tiv taus kev cuam tshuam.
4. Txhim kho kev siv tshuab
Rau cov hlau tsis xeb uas ua haujlwm txias, kev siv tshuaj annealing tshem tawm cov teebmeem ua haujlwm tawv, ua rau yooj yim dua rau kev ua haujlwm thiab kev tsim khoom hauv kev ua tom ntej.
5. Npaj cov khoom siv rau kev kho cua sov ntxiv
Kev ua kom cov kua kub hnyiab muab lub hauv paus microstructural tsim nyog rau cov txheej txheem xws li kev laus lossis kev vuam, tshwj xeeb tshaj yog rau cov hlau tsis xeb uas tau los nag lossis duplex.
Piv txwv ntawm cov hom hlau siv tau
• Cov hlau tsis xeb Austenitic (xws li 304, 316, 321): Tshem tawm qhov kev xeb ntawm cov khoom sib xyaw ua ke
• Cov hlau tsis xeb uas ua kom tawv thaum los nag (xws li 17-4PH): Kev kho cov tshuaj tom qab ntawd los ntawm kev laus
• Duplex stainless hlau (xws li 2205, 2507): Kev kho cov kua siv los ua kom tau qhov sib piv zoo tagnrho ntawm austenite + ferrite
Lub sijhawm tshaj tawm: Tsib Hlis-16-2025