Muaj ntau txoj hauv kev los tshem cov xeb los ntawm cov phaj tooj liab
Tooj liab yog cov hlau tsis muaj hlau. Cov hlau yuav xeb nyob rau hauv ib txwm muaj xwm txheej. Qhov feem ntau yog hlau. Ib yam li ntawd, cov phaj tooj liab kuj yuav xeb.
Lub phaj tooj liab reacts nrog carbon dioxide nyob rau hauv ib qho chaw ntub dej, yog li thaum muaj cov pa roj carbon dioxide ntau, cov phaj tooj liab kuj yuav oxidized thiab xeb, tab sis nws yuav tsis xeb zoo li hlau.
Liab tooj liab phaj muaj cov khoom siv zoo, zoo plasticity nyob rau hauv lub xeev kub, siv tau plasticity nyob rau hauv lub xeev txias, zoo machinability, yooj yim fiber welding thiab vuam, corrosion kuj, tab sis nws yog feem ntau corrosion thiab tawg, ntxiv rau, nws yog pheej yig thiab yog dav siv. ntawm ib tug dawb tooj dag ntau yam.
Nws yooj yim rau oxidize hauv huab cua, ua rau xeb. Yog tias cov khoom xeb tsis raug kho kom raug, nws tseem yuav cuam tshuam rau peb cov kev ua thiab siv. Yog li ntawd, thaum peb siv tooj liab, peb ib txwm txhawj xeeb. Peb yuav ua li cas yog tias tooj liab xeb sai sai?
Dab tsi yog txoj hauv kev los tshem tawm xeb los ntawm daim hlau?
① Siv tus neeg saib xyuas tooj liab, koj tuaj yeem ua tiav txoj haujlwm tshem tawm xeb tau yooj yim, tab sis rau rusty thiab oxidized tooj liab daim hlau, peb kuj yuav tsum tau ua tooj liab tshuaj polishing kev kho mob, vim tias nws tsis tuaj yeem tshem tawm sai sai ntawm cov oxide txheej, xeb, patina, thiab txheej txheem Thaum kawg, qhov tseeb xim ntawm cov phaj tooj liab tuaj yeem rov qab los. Thiab thaum polishing, nws tuaj yeem ua tiav cov nyhuv tiaj tus thiab du.
② Copper hydrochloric acid pickling txoj kev. Txawm li cas los xij, cov tshuaj tiv thaiv corrosion siv los ntawm ntau lub zog nroj tsuag hauv pickling tooj liab daim hlau tsis zoo tagnrho. Boiler pickling corrosion inhibitors (corrosion inhibitors los tiv thaiv hlau thiab hlau-raws li alloys) feem ntau yog siv ncaj qha, los yog qee qhov kev sim me me tau ua, tab sis vim yog txoj kev sim tsis raug, lawv tsis tuaj yeem nkag siab qhov tseem ceeb uas txhawb nqa qhov tseeb. Lub ntsiab tseem ceeb ntawm corrosion ntawm daim hlau tooj liab yog tias txawm hais tias cov kev xaiv corrosion inhibitors zoo li ua tau zoo dua hauv kev sim me me, lawv cov corrosion inhibition efficiency tsawg heev los yog tsis muaj txiaj ntsig thaum siv cov khoom siv tiag tiag. Kev sim txoj kev Yuav kom simulate qhov tseeb ntawm qhov chaw kom ntau li ntau tau, cov kev sim tshuaj tiv thaiv corrosion inhibitor tau ua raws li cov kev cai ntawm kev ntxiv qee qhov ntawm Cu' deca ions (ntxiv rau hauv daim ntawv ntawm tooj liab chloride) thiab nplawm ntawm lub tib lub sijhawm.
③ Kev kho Passivation tuaj yeem ua tau. Tom qab kev kho mob passivation, nws tuaj yeem tiv thaiv tau tooj liab los ntawm xeb thiab oxidation. Cov ntsev tsuag tshuaj tiv thaiv yuav siv sij hawm ntev thiab tsis cuam tshuam qhov kev ua tau zoo. Nws yog qhov kawg tsis rau cov khoom siv tooj liab thaum lub sijhawm ua haujlwm. Qhov kev xaiv zoo tshaj plaws rau kev tiv thaiv corrosion thiab xeb.
