Stainless hlauyog paub rau nws corrosion tsis kam, tab sis nws tsis yog kev tiv thaiv tsis xeb. Stainless hlau tuaj yeem xeb nyob rau qee qhov xwm txheej, thiab kev nkag siab vim li cas qhov no tshwm sim tuaj yeem pab tiv thaiv thiab tswj cov xeb.
Stainless hlau muaj chromium, uas ua cov txheej txheej nyias, passive oxide txheej rau nws cov nplaim thaum thaum raug cov pa oxygen. Qhov no oxide txheej, tseem hu ua "txheej passive," muab cov corrosion tsis kam uasStainless hlauyog nto moo rau.
Yam cuam tshuam rau xeb ntawm cov hlau stainless:
Raug rau Chlorides
NEEG KHO TSHUAB
Tsis muaj oxygen
Tsis huv
Kev Kub Siab
Tsis zoo zoo stainless hlau
Kev ua haujlwm ib puag ncig muaj ib puag ncig
Hom ntawm stainless hlau corrosion:
Muaj ntau hom sib txawv ntawm cov hlau stainless corrosion. Lawv txhua tus tau pib sib txawv thiab yuav tsum muaj kev sib txawv.
General Corrosion- Nws yog qhov kev paub ntau tshaj plaws thiab yooj yim tshaj plaws los lis. Nws yog tus cwj pwm los ntawm cov khoom poob ntawm tag nrho saum npoo.
Galvanic corrosion- Hom corrosion no cuam tshuam feem ntau hlau cov hlau. Nws yog hais txog qhov xwm txheej uas ib hlau los rau hauv kev sib cuag nrog lwm tus thiab ua rau ib qho lossis ob qho tib si los ua ke thiab corrode.
Pitting corrosion- Nws yog hom chaw hauv nroog ntawm corrosion uas tawm kab noj hniav lossis qhov. Nws tau nthuav dav nyob rau hauv ib puag ncig muaj chlorides.
Crevice corrosion- Kuj tseem muaj zog corrosion uas tshwm sim ntawm kev sib tw ntawm ob qho kev koom nrog thaj chaw. Nws tuaj yeem tshwm sim ntawm ob coters lossis hlau thiab tsis yog hlau.
Tiv thaiv stainless hlau los ntawm xeb:
Cov hlau huv stainless hlau tsis tu ncua tshem tawm cov paug thiab tswj nws txheej tiv thaiv.
Zam txhob ua rau cov hlau tsis muaj stainless hlau mus rau chlorides thiab cov tshuaj muaj ntshav.
Tiv thaiv stainless hlau los ntawm kev puas tsuaj kev puas tsuaj los ntawm kev siv cov txheej txheem daws tau thiab khaws cia.
Ua kom ntseeg tau qhov cua nyob hauv ib cheeb tsam uas stainless hlau yog siv los ua kom muaj cov pa oxygen.
Xaiv cov qauv zoo ntawm stainless hlau nrog qhov tsim nyog alloy muaj pes tsawg leeg rau cov ntawv thov.
Lub Sijhawm Post: Lub Yim Hli 11-2023