Nyob rau hauv lub neej niaj hnub, peb feem ntau siv seb lub raj yog hlau nplaum los txiav txim qhov zoo ntawm stainless hlau, tab sis qhov tseeb, txoj kev ntawm lub raj no yog unscientific heev. Piv txwv li, peb cov zinc tube alloys, raj tooj liab alloys, thiab lwm yam tuaj yeem ua raws li cov tsos thiab xim ntawm stainless hlau. Thiab tsis muaj cov hlau nplaum sib nqus, yog li nws yooj yim los ua yuam kev rau cov hlau tsis muaj steel. Txawm hais tias 304 steel, uas yog cov raj siv feem ntau tam sim no, yuav muaj ntau qib ntawm cov raj hlau nplaum tom qab ua haujlwm txias, yog li peb tsis tuaj yeem tso siab rau seb nws puas muaj cov hlau nplaum sib nqus los txiav txim qhov zoo ntawm cov hlau tsis zoo, yog li vim li cas 304 stainless. steel yeeb nkab muaj hlau nplaum?
Feem ntau, cov yeeb nkab stainless hlau tuaj yeem muab faib ua ob pawg raws li nws cov qauv ntawm chav tsev kub. Ib qho yog cov yeeb nkab austenitic stainless hlau, xws li 304, 321 yeeb nkab, 316 yeeb nkab, 310 yeeb nkab, thiab lwm yam, thiab lwm yam yog yeeb nkab martensite lossis ferrite. Stainless hlau, cov kav dej zoo li 430, 420, 410, thiab lwm yam, thaum austenitic stainless hlau yeeb nkab yog cov hlau tsis sib nqus lossis tsis muaj zog sib nqus, martensite lossis yeeb nkab ferrite yog sib nqus, yog li 304 stainless hlau yeeb nkab tsis yog hlau nplaum lossis yog tias nws yog hlau nplaum.
Thiab peb feem ntau hais tias 304 stainless hlau yog non-magnetic tubular stainless hlau. Lub raj xa mus rau nws qhov ntsuas magnetic qis dua ib qho nqi. Nyob rau hauv lwm yam lus, feem ntau stainless hlau muaj ib tug tej yam degree ntawm raj hlau nplaum. Cov austenitic stainless hlau tau txais yog cov hlau tsis sib nqus lossis tsis muaj zog sib nqus, thaum ferritic thiab martensitic stainless hlau muaj cov khoom sib nqus hlau. Qhov no yog vim muaj kev sib cais ntawm cov khoom thaum lub sij hawm smelting los yog kev kho cua sov tsis zoo ntawm lub raj, uas ua rau austenitic 304 stainless hlau muaj me me ntawm martensite los yog ferrite qauv nyob rau hauv 304 stainless hlau raj, thiaj li hais tias 304 stainless hlau raj yuav tshwm sim. tsis muaj zog hlau nplaum. Qhov ntau dua qhov deformation ntawm lub raj, ntau martensitic transformation raj, thiab lub zog ntawm cov hlau nplaum ntawm lub raj.
Yog li ntawd, cov khoom sib nqus ntawm cov khoom yog txiav txim siab los ntawm qhov tsis tu ncua ntawm cov txheej txheem molecular thiab cov cuab yeej isotropic tube ntawm electron spines, uas tuaj yeem suav tias yog cov khoom siv lub cev ntawm cov khoom, thaum lub corrosion kuj ntawm cov khoom yog txiav txim los ntawm cov khoom. tshuaj muaj pes tsawg leeg ntawm cov khoom. Yog, nws yog cov khoom siv tshuaj lom neeg ntawm cov khoom siv, thiab nws tsis muaj dab tsi ua nrog seb cov khoom puas yog hlau nplaum los yog tsis.