Duplex stainless hlau muaj ob-theem microstructure nyob rau hauv uas lub ntim feem ntawm ferrite thiab austenite yog li ntawm 50%.Vim lawv ob-theem microstructure, cov hlau no muab cov khoom zoo tshaj plaws ntawm ferritic thiab austenitic stainless steels. Feem ntau, lub ferrite theem (lub cev-centered cubic lattice) muab siab rigidity zoo, thiab zoo corrosion kuj. ttice) muab ductility zoo.
Kev sib xyaw ua ke ntawm cov khoom no yog vim li cas duplex stainless hlau yog dav siv nyob rau hauv petrochemical, pulp thiab ntawv, marine thiab fais fab tsim industries.Lawv muaj peev xwm tiv taus corrosive media, ncua sij hawm kev pab cuam, thiab ua hauj lwm nyob rau hauv ntau huab ib puag ncig.
Cov ntaub ntawv muaj zog muaj zog tso cai rau koj kom txo qis ib feem tuab thiab qhov hnyav.Piv txwv li, super duplex stainless hlau tuaj yeem muab peb mus rau plaub npaug ntau dua cov khoom muaj zog thiab siab dua rau pitting corrosion dua 316 stainless hlau.
Duplex stainless hlau tau muab faib ua peb qib raws li gravimetric chromium (Cr) cov ntsiab lus thiab pitting tsis kam sib npaug (PREN):
Ib qho tseem ceeb ntawm vuam DSS, SDSS, HDSS thiab tshwj xeeb alloy stainless hlau yog kev tswj ntawm vuam tsis.
Lub petrochemical kev lag luam vuam txheej txheem yuav tsum tau txiav txim siab yam tsawg kawg nkaus PREN tus nqi yuav tsum tau rau muab tub lim hlau.Piv txwv li, DSS yuav tsum tau ib tug PREN ntawm 35 thiab SDSS yuav tsum tau ib tug PREN ntawm 40.Daim duab 1 qhia DSS thiab nws matching muab tub lim hlau rau GMAW thiab GTAW.Tshwj xeeb, Cr cov ntsiab lus ntawm cov muab tub lim hlau yuav phim rau cov hauv paus ntsiab lus ntawm AW siv cov hlau. er metals.Yog tias cov hlau vuam tsis sib xws vim cov txheej txheem tsis zoo, cov hlau tsis zoo tshaj plaws tuaj yeem muab qhov xav tau PREN thiab lwm yam txiaj ntsig rau cov qauv welded.
Ua piv txwv los qhia qhov no, qee cov tuam txhab pom zoo siv SDSS muab tub lim (25% Cr) rau DSS-raws li alloys (22% Cr), thiab HDSS muab tub lim (27% Cr) hauv SDSS (25% Cr) raws li alloys.Rau HDSS raws li alloys, koj tuaj yeem siv HDSS muab tub lim hlau.This austenitic-ferritic 7% duplex stainless hlau. 5% npib tsib xee, 5% molybdenum thiab suav tias yog tsawg dua 0.015% cov pa roj carbon tsawg.
Muab piv rau SDSS, HDSS packing muaj zog yield ntau dua thiab zoo dua rau pitting thiab crevice corrosion.Nws kuj muaj siab dua tiv thaiv hydrogen-induced kev ntxhov siab tawg thiab siab ua hauj lwm rau acidic ib puag ncig zoo dua SDSS.Nws lub zog siab txhais tau tias txo qis txij nkawm thaum lub sij hawm cov yeeb nkab ntau lawm, vim finite element tsom xam tsis tas yuav tsum tau rau weld hlau ntawm kev sib piv lub zog, thiab kev txais yuav tsawg dua.
Muab ntau yam ntawm cov ntaub ntawv hauv paus, cov kev xav tau ntawm cov tshuab thiab cov kev pabcuam, thov xav txog kev sab laj nrog DSS daim ntawv thov thiab tus kws tshaj lij hlau muab tub lim ua ntej pib ua haujlwm rau koj qhov project tom ntej.
WELDER, yav tas los siv vuam niaj hnub no, nthuav qhia cov neeg tiag tiag uas ua cov khoom uas peb siv thiab ua haujlwm nrog txhua hnub.Cov ntawv xov xwm no tau ua haujlwm rau cov koom haum vuam hauv North America rau ntau tshaj 20 xyoo.
Tam sim no nrog kev nkag mus rau tag nrho cov ntawv digital ntawm FABRICATOR, yooj yim nkag mus rau cov khoom lag luam muaj txiaj ntsig.
Cov ntawv digital ntawm The Tube & Pipe Journal yog tam sim no nkag mus tau yooj yim, muab kev nkag tau yooj yim rau cov khoom lag luam muaj txiaj ntsig.
Txaus siab rau kev nkag mus rau tag nrho cov ntawv luam tawm digital ntawm STAMPING Journal, uas muab cov txheej txheem thev naus laus zis tshiab, kev coj ua zoo tshaj plaws thiab xov xwm kev lag luam rau kev lag luam hlau stamping.
Tam sim no nrog kev nkag mus rau tag nrho cov ntawv digital ntawm Tus Fabricator en Español, nkag tau yooj yim rau kev lag luam muaj txiaj ntsig.