Stainless hlau clad steel phajyog ib lub phaj hlau ua los ntawm cov hlau zoo tib yam los ntawm kev tawg, dov, nto, thiab lwm yam txheej txheem, thiab sib txuas cov hlau tsis zoo thiab cov hlau zoo tib yam. Nws muaj cov yam ntxwv ntawm ob hom hlau sib txawv tib lub sijhawm. Hlau muaj qhov zoo ntawm tus nqi qis thiab zoo rigidity thiab yog dav siv hauv kev kho mob, roj av, thiab tshuaj lom neeg cov hlab ntsha.
Cov yam ntxwv cuam tshuam ntawm intergranular corrosion ntawm stainless hlau yog qhov nyuaj. Raws li lub intergranular corrosion mechanism, lub ntsiab influencing yam muaj xws li C thiab Cr cov ntsiab lus, stability ntsiab, cua kub kub, thiab lwm yam.
1. C cov ntsiab lus
C yog lub hauv paus tseem ceeb rau kev nkag siab ntawm cov hlau tsis muaj steel, thiab nws cov ntsiab lus muaj kev cuam tshuam loj rau kev cuam tshuam ntawm intergranular corrosion. Thaum cov ntsiab lus C ntau dua 0.03 feem pua, cov hlau tsis muaj hlau nyob hauv lub xeev supersaturated. Qhov siab dua cov ntsiab lus C, qhov ceev ntawm cov pa roj carbon atom nag lossis daus, thiab ntau chromium carbide yog tsim nyob rau hauv cov ciam teb, uas ua rau kom ceev corrosion tus nqi thiab intergranular corrosion ntawm cov khoom. nyiam nce.
2. Cov ntsiab lus ruaj khov
Cov ntsiab lus xws li Ti muaj peev xwm sib txuas nrog C dua li Cr thiab tuaj yeem tsim cov carbides ruaj khov tom qab kev sib txuas, uas tuaj yeem zam qhov tsim ntawm Cr-depleted thaj chaw hauv austenite. Cov ntsiab lus no hu ua stabilizers.
3. Qhov kub thiab txias
Thaum cov cua kub qis dua 450 degree lossis siab dua 850 degree, 18-8 austenitic stainless hlau yuav tsis tsim intergranular corrosion. Vim tias thaum kub tsawg dua 450 degree, Cr23C6 yuav tsis raug tsim nyob rau hauv cov hlau. Thaum qhov kub siab tshaj 850 degree, vim qhov txhim kho diffusivity, Cr lub ntsiab diffuses mus rau thaj tsam ntawm cov qoob loo thiab ua ke nrog C, yog li Cr-depleted cheeb tsam yuav tsis tsim nyob rau hauv cov qoob loo ciam teb.
Lub cladding ntawm stainless hlau clad steel phaj yuav tsum muaj corrosion kuj zoo, thiab tus nqi qis - txheej txheej yuav tsum muaj peev xwm ua tau raws li lub zog ntawm cov khoom siv. Txawm hais tias stainless hlau phaj yog kub kho yog txiav txim siab raws li kev siv cov khoom siv, thiab cov yam ntxwv ntawm qhov nruab nrab yuav tsum tau txiav txim siab tag nrho hauv kev tsim cov khoom siv nrog intergranular corrosion nyiam. Rau austenitic stainless hlau clad steel daim hlau, feem ntau, kub ua hauj lwm los yog kev kho cua sov yuav tsum tau zam nyob rau hauv lub rhiab heev kub ntau yam. Yog tias nws tsis tuaj yeem zam tau, ultra- cov khoom siv carbon tsawg yuav tsum raug xaiv lossis cov khoom ruaj khov yuav tsum tau ntxiv.
Baoji Taicheng Hlau Co., Ltd yog tus kws tshaj lijstainless hlau clad steel phaj tsum, uas tuaj yeem muab rau koj txhua yamcustomized hlau clad daim hlau. Peb cov khoom muaj txiaj ntsig zoo thiab txhawj xeeb-dawb tom qab- muag. Koj qhov kev sab laj tau txais tos!
