Ntaus304l stainless hlauPuas yog cov roj carbon variant ntawm hom 3 {0 4 stainless hlau, siv dav thiab corrosion zoo heev, lub zog, thiab muaj peev xwm. Tus "l" hauv 3 0 4l sawv rau "cov pa roj carbon tsawg, piv txwv tias cov ntsiab lus carbon ntau tshaj plaws ntawm 0.08% hauv cov qauv roj txheem 304 stainless. Qhov kev txo cov ntsiab lus carbon yog qhov tseem ceeb ntawm kev ua tau zoo hauv cov ntawv thov thaum tuav txoj hauv kev siv tau ntawm 304 qib.
Muaj pes tsawg leeg thiab cov khoom
Cov ntsiab lus tseem ceeb hauv304l stainless hlauPuas yog chromium (18-20%) thiab npib tsib caug ({%), nrog cov nyiaj ntawm manganese, siton, thiab phosphorus. Cov ntsiab lus muaj cov roj carbon tsawg tsawg rau kev pheej hmoo ntawm kev kho nag lossis daus, ib qho tshwm sim ua kom sov, ib qho tshwm sim kub ua rau muaj kev tiv thaiv corrosion.
304l yog ib feem ntawm cov neeg siv tsis tau ntawm tsev neeg tsis muaj roj stainless hlau, tus cwj pwm los ntawm nws lub peev xwm los tswj kev nruj thiab ductility ntawm ob qho siab thiab qis. Nws yog qhov muaj peev xwm tiv taus ntau qhov kev xeb ib puag ncig, suav nrog oxidizing cov kua qaub zoo li nitric acid, uas ua rau nws xaiv cov khoom lag luam nrov tshuaj lom neeg.
Cov txiaj ntsig tseem ceeb
Corrosion Kuj:
304L stainless hlau excel kev tiv thaiv corrosion nyob rau ntau thaj chaw, tshwj xeeb yog nyob rau hauv cov xwm txheej uas corrosion nyob rau hauv. Cov pa roj carbon qis tiv thaiv cov chromium carbide nag lossis daus, tswj cov khoom siv passivated nto.
Hwj txwv:
Qhov txo cov ntsiab lus cov ntsiab lus carbon ua rau 304L txoj kev xaiv vuam vuam. Nws txo qis kev pheej hmoo ntawm weld lwj, ib qho xwm txheej uas txo corrosion tiv taus welded pob qij txha. Qhov no ua rau nws haum rau cov ntaub ntawv fab siv.
Muaj peev xwm thiab lub zog:
Lub alloy yog yooj yim machinetable thiab tuaj yeem tsim los ua cov qauv nyuaj yam tsis tau poob nws cov khoom siv. Txawm hais tias nws lub tensile lub zog yog me ntsis qis dua li ntawm tus qauv304 stainless hlau, nws khaws tau zoo heev lub zog rau feem ntau cov qauv kev cai thiab engineering.
Kev ua temper kub:
304L ua yeeb yam zoo thoob plaws ntau qhov ntsuas kub thiab kev tswj hwm cov qauv txheej txheem thiab corrosion tsis kam nyob rau hauv cryogenic tej yam kev mob nrog rau kev kub ntxhov siab.
Cov Ntawv Thov
Hom 304L stainless hlau yog siv thoob plaws ntawm kev lag luam dav ntawm kev lag luam vim nws cov khoom sib xyaw ua ke ntawm cov khoom. Cov ntawv thov tseem ceeb muaj xws li:
Cov Khoom Siv Tshuaj thiab Petrochemical: Nws txoj kev tawm tsam rau tshuaj nres thiab weldability ua nws xaiv qhov kev xaiv zoo kawg rau kev tso tsheb hlau luam, kav dej, thiab reactors.
Cov Khoom Noj Khoom Haus Thiab Dej Haus: 304L tsis yog-reactive thiab yooj yim los ntxuav, ua rau nws zoo tagnrho rau kev ua zaub mov thiab khoom siv.
Kev tsa tsev: Nws yog siv nyob rau hauv archectural ntsiab, cov tsheb ciav hlau, thiab cladding rau nws cov lus qhia zoo nkauj thiab kev ua haujlwm ruaj khov.
Cov Khoom Siv Kho Mob: Cov alloy's biocompatibility thiab corrosion tsis kam yog tsim rau kev phais cov twj thiab kev cog.
Kev txwv
Thaum 304l muaj cov txiaj ntsig tseem ceeb, nws muaj kev txwv. Nws tsis haum rau chloride ib puag ncig, qhov twg pitting thiab crevice corrosion tuaj yeem tshwm sim. Rau cov ntawv thov zoo li no, cov qhab nia siab dua li 316 lossis Duplex Stainless hlau yog pom zoo.
Hauv cov ntsiab lus, hom 304L stainless hlau yog ib qho khoom siv ntau thiab txhim khu kev qha, cov ntaub ntawv uas xav tau kev zam tshwj xeeb, tshwj xeeb hauv cov qauv welded. Nws cov ntsiab lus muaj roj carbon qis tau txhim kho nws txoj kev muaj peev xwm hauv kev xav tau ib puag ncig, ua rau nws lub pob zeb hauv ntau qhov kev lag luam.
