Kev Taw Qhia

Qib 316 yog qib uas muaj molybdenum, qhov thib ob tseem ceeb rau 304 ntawm cov hlau tsis xeb austenitic. Cov molybdenum muab 316 zoo dua qhov corrosion resistant dua li Qib 304, tshwj xeeb tshaj yog qhov tsis kam rau pitting thiab crevice corrosion hauv chloride ib puag ncig.

Qib 316L, qhov qis carbon version ntawm 316 thiab tsis muaj kev cuam tshuam (cov carbide precipitation ntawm cov noob ciam teb). Yog li nws yog siv dav hauv cov khoom siv vuam hnyav (ntau tshaj 6 hli). Feem ntau tsis muaj qhov sib txawv ntawm tus nqi ntawm 316 thiab 316L stainless hlau.

Cov qauv austenitic kuj muab cov qib no zoo heev toughness, txawm tias mus txog rau qhov kub cryogenic.

Piv rau cov hlau tsis xeb chromium-nickel austenitic, 316L stainless hlau muaj kev nkag siab dua, kev ntxhov siab rau kev tawg thiab lub zog tensile ntau dua ntawm qhov kub siab.

Cov Khoom Tseem Ceeb

Cov khoom no tau teev tseg rau cov khoom tiaj tiaj (phaj, ntawv thiab kauj) hauv ASTM A240/A240M. Cov khoom zoo sib xws tab sis tsis tas yuav zoo ib yam tau teev tseg rau lwm cov khoom xws li yeeb nkab thiab pas nrig hauv lawv cov lus qhia.

Kev sau ua ke

Rooj 1. Cov khoom sib xyaw rau 316L stainless hlau.

Cov Khoom Siv Kho Tshuab

Rooj 2. Cov khoom siv kho tshuab ntawm 316L stainless hlau.

Cov Khoom Siv Lub Cev

Rooj 3.Cov khoom siv lub cev ib txwm muaj rau 316 qib stainless hlau.

Kev Sib Piv Txog Qib Kawm

Rooj 4.Cov lus qhia tshwj xeeb rau 316L stainless hlau.

Lus Cim: Cov kev sib piv no tsuas yog kwv yees xwb. Daim ntawv teev npe no yog tsim los ua kev sib piv ntawm cov ntaub ntawv zoo sib xws tsis yog ua daim ntawv teev cov khoom sib npaug. Yog tias xav tau cov khoom sib npaug, yuav tsum tau sab laj nrog cov lus qhia qub.

Cov Qib Lwm Yam Uas Muaj Peev Xwm Hloov Tau

Rooj 5. Cov qib sib txawv uas siv tau rau 316 stainless hlau.

Rooj 5.Cov qib sib txawv uas muaj peev xwm hloov tau rau 316 stainless hlau.

Qib

Vim li cas nws thiaj yuav raug xaiv es tsis yog 316?

317L

Muaj kev tiv thaiv ntau dua rau cov chlorides dua li 316L, tab sis muaj kev tiv thaiv zoo sib xws rau kev ntxhov siab corrosion cracking.

Kev Tiv Thaiv Kev Xeb

Zoo heev nyob rau hauv ntau yam huab cua ib puag ncig thiab ntau yam corrosive media - feem ntau tiv taus ntau dua li 304. Raug rau pitting thiab crevice corrosion nyob rau hauv sov chloride ib puag ncig, thiab rau kev ntxhov siab corrosion cracking saum toj no txog li 60°C. Suav tias tiv taus dej haus nrog txog li 1000mg / L chlorides ntawm qhov kub thiab txias, txo qis mus rau li 500mg / L ntawm 60°C.

316 feem ntau suav hais tias yog tus qauv"marine qib stainless hlau", tab sis nws tsis tiv taus dej hiav txwv sov. Hauv ntau qhov chaw hauv dej hiav txwv 316 ua rau pom kev xeb ntawm qhov chaw, feem ntau pom tau tias yog xim av. Qhov no yog qhov tshwj xeeb tshaj yog cuam tshuam nrog cov kab nrib pleb thiab qhov chaw tiav.

Kev Tiv Thaiv Kub

Kev tiv thaiv oxidation zoo hauv kev pabcuam tsis tu ncua mus txog 870°C thiab nyob rau hauv kev pabcuam txuas ntxiv mus rau 925°C. Siv tas li ntawm 316 hauv 425-860°C ntau yam tsis pom zoo yog tias qhov kev tiv thaiv xeb dej tom qab ntawd tseem ceeb. Qib 316L tiv taus cov carbide nag thiab tuaj yeem siv rau hauv qhov kub siab dua. Qib 316H muaj zog dua ntawm qhov kub siab thiab qee zaum siv rau cov qauv thiab cov ntawv thov siab ntawm qhov kub siab dua li 500°C.

Kev Kho Mob Kub

Kev Kho Mob Kua (Annealing) - Kub rau 1010-1120°C thiab txias sai. Cov qib no tsis tuaj yeem ua kom tawv los ntawm kev kho cua sov.

Kev vuam

Zoo heev weldability los ntawm txhua tus qauv fusion thiab tiv thaiv txoj kev, ob qho tib si nrog thiab tsis muaj filler hlau. Hnyav welded seem hauv Qib 316 xav tau post-weld annealing rau qhov siab tshaj plaws corrosion tsis kam. Qhov no tsis tas yuav tsum tau rau 316L.

316L stainless hlau feem ntau tsis tuaj yeem vuam siv cov txheej txheem oxyacetylene vuam.

Kev siv tshuab

Cov hlau tsis xeb 316L feem ntau yuav tawv yog tias siv tshuab sai dhau. Vim li no, kev ceev qis thiab kev pub mov tas li yog qhov pom zoo.

316L stainless hlau kuj yooj yim dua rau kev siv tshuab piv rau 316 stainless hlau vim nws cov ntsiab lus carbon qis dua.

Ua Haujlwm Kub thiab Txias

316L stainless hlau tuaj yeem ua haujlwm kub siv feem ntau cov txheej txheem ua haujlwm kub. Qhov kub ua haujlwm kub zoo tshaj plaws yuav tsum nyob rau hauv qhov ntau ntawm 1150-1260°C, thiab yeej yuav tsum tsis pub tsawg dua 930°C. Kev ua kom sov tom qab ua haujlwm yuav tsum tau ua kom muaj kev tiv thaiv xeb siab tshaj plaws.

Feem ntau cov haujlwm ua haujlwm txias xws li shearing, kos duab thiab stamping tuaj yeem ua rau ntawm 316L stainless hlau. Tom qab ua haujlwm annealing yuav tsum tau ua kom tshem tawm cov kev ntxhov siab sab hauv.

Kev Kho Kom Ruaj Khoov thiab Kev Ua Haujlwm Kho Kom Ruaj Khoov

Cov hlau tsis xeb 316L tsis tawv thaum kho cua sov. Nws tuaj yeem tawv los ntawm kev ua haujlwm txias, uas kuj tuaj yeem ua rau muaj zog ntxiv.

Cov ntawv thov

Cov ntawv thov ib txwm muaj xws li:

•Cov khoom siv ua zaub mov tshwj xeeb tshaj yog nyob rau hauv cov chaw muaj chloride.

•Cov Tshuaj

•Cov ntawv thov dej hiav txwv

•Cov ntawv thov kev tsim kho vaj tse

•Cov khoom cog rau kev kho mob, suav nrog cov koob, cov ntsia hlau thiab cov khoom cog rau pob txha xws li kev hloov pauv tag nrho lub duav thiab lub hauv caug

•Cov khoom siv txuas