Hauv lub neej txhua hnub, cov neeg feem coob ntseeg tias cov hlau tsis muaj hlau tsis yog hlau nplaum thiab siv cov hlau nplaum los txheeb xyuas nws.Txawm li cas los xij, txoj kev no tsis yog kev tshawb fawb zoo.Ua ntej, zinc alloys thiab tooj liab alloys tuaj yeem ua raws li qhov pom thiab tsis muaj hlau nplaum, ua rau kev ntseeg yuam kev tias lawv yog stainless hlau.Txawm tias feem ntau siv stainless hlau qib, 304, tuaj yeem pom qhov sib txawv ntawm cov hlau nplaum tom qab ua haujlwm txias.Yog li ntawd, kev cia siab ib leeg rau cov hlau nplaum los txiav txim siab qhov tseeb ntawm cov hlau tsis muaj kev ntseeg siab.
Yog li, dab tsi ua rau cov hlau nplaum hauv stainless hlau?
Raws li kev tshawb fawb ntawm cov khoom siv physics, cov hlau nplaum ntawm cov hlau yog muab los ntawm cov qauv electron spin.Electron spin yog quantum mechanical cuab yeej uas tuaj yeem ua "nce" lossis "down."Nyob rau hauv cov ntaub ntawv ferromagnetic, electrons cia li nyob rau hauv tib txoj kev, thaum nyob rau hauv antiferromagnetic cov ntaub ntawv, ib co electrons ua raws li cov qauv tsis tu ncua, thiab nyob sib ze electrons muaj opposite los yog antiparallel spin.Txawm li cas los xij, rau cov electrons hauv daim duab peb sab lattices, lawv yuav tsum txhua tus kiv hauv tib qho kev taw qhia hauv txhua daim duab peb sab, ua rau tsis muaj cov qauv net spin.
Feem ntau, austenitic stainless hlau (sawv cev los ntawm 304) tsis yog hlau nplaum tab sis tuaj yeem pom cov hlau nplaum tsis muaj zog.Ferritic (tsuas yog 430, 409L, 439, thiab 445NF, thiab lwm yam) thiab martensitic (xws li 410) stainless hlau feem ntau yog sib nqus.Thaum cov qib stainless hlau zoo li 304 raug cais raws li cov hlau tsis sib nqus, nws txhais tau tias lawv cov khoom sib nqus poob qis dua qhov pib;Txawm li cas los xij, feem ntau cov qib stainless hlau muaj qee qhov kev sib nqus ntawm cov hlau nplaum.Tsis tas li ntawd, raws li tau hais ua ntej, austenite tsis yog sib nqus lossis tsis muaj zog sib nqus, thaum ferrite thiab martensite yog sib nqus.Kev kho cua sov tsis raug lossis kev sib cais sib cais thaum lub sij hawm smelting tuaj yeem ua rau muaj cov qauv me me ntawm martensitic lossis ferritic hauv 304 stainless hlau, ua rau cov hlau nplaum tsis muaj zog.
Tsis tas li ntawd, cov qauv ntawm 304 stainless hlau tuaj yeem hloov mus rau martensite tom qab ua haujlwm txias, thiab qhov tseem ceeb ntawm deformation, ntau cov ntaub ntawv martensite, ua rau muaj zog hlau nplaum.Txhawm rau tshem tawm cov hlau nplaum tag nrho hauv 304 stainless hlau, kev kho qhov kub thiab txias tuaj yeem ua tau los kho cov qauv austenite ruaj khov.
Hauv cov ntsiab lus, cov hlau nplaum ntawm cov khoom siv yog txiav txim siab los ntawm qhov tsis tu ncua ntawm molecular kev npaj thiab kev sib tw ntawm electron spinning.Nws suav hais tias yog lub cev ntawm cov khoom siv.Lub corrosion kuj ntawm cov khoom, ntawm qhov tod tes, yog txiav txim los ntawm nws cov tshuaj muaj pes tsawg leeg thiab yog ywj siab ntawm nws magnetism.
Peb cia siab tias qhov kev piav qhia luv luv no tau pab tau.Yog tias koj muaj lwm yam lus nug txog stainless hlau, thov koj xav tiv tauj nrog EST Chemical cov neeg siv khoom los yog tawm lus, thiab peb yuav zoo siab los pab koj.
Post lub sij hawm: Nov-15-2023