Nyob rau hauv tej yam ntuj tso, 10-20A oxide zaj duab xis yuav raug tsim nyob rau saum npoo ntawm steel qhov chaw vim yog kev sib cuag nrog oxygen nyob rau hauv cov huab cua.Thaum lub sij hawm tsim cov yeeb yaj kiab, nyob ntawm seb lub cev ntawm cov hlau nws tus kheej, qhov chaw ntawm lub cev thiab cov oxidation, qee cov oxide zaj duab xis tsim yog nyias, qee qhov tuab thiab ua tiav, thiab qee qhov yog xoob thiab tsis tiav.Feem ntau, lub ntuj oxide zaj duab xis tsim tsis tuaj yeem tiv thaiv cov hlau los ntawm corroded.
Muaj ntau txoj kev kho oxidation rau hlau, suav nrog alkaline tshuaj oxidation, alkali tsis muaj oxidation, kub kub oxidation thiab electrochemical oxidation.Tam sim no, alkaline tshuaj oxidation txoj kev yog dav siv nyob rau hauv kev lag luam.(Kuj acid oxidation method)
Cov yam ntxwv ntawm oxide zaj duab xis: xim zoo nkauj, tsis muaj hydrogen embrittlement, elasticity, nyias zaj duab xis (0.5-1.5um), tsis muaj kev cuam tshuam loj rau qhov loj thiab qhov tseeb ntawm cov khoom, thiab tseem muaj qee yam cuam tshuam rau kev tshem tawm cov kev ntxhov siab tom qab tshav kub. kev kho mob.
Blackening kev kho mob yog ib hom kev kho deg oxidation.Cov hlau qhov chaw yog muab tso rau hauv ib tug heev concentrated tov ntawm alkali thiab oxidant, rhuab thiab oxidized ntawm ib tug tej yam kub, thiaj li hais tias ib tug txheej ntawm uniform thiab ntom hlau nto yog tsim thiab khov kho rau lub hauv paus hlau.Cov txheej txheem ntawm ferric oxide zaj duab xis hu ua blackening.Vim muaj kev cuam tshuam ntawm ntau yam hauv kev ua haujlwm, cov xim ntawm cov yeeb yaj kiab no yog xiav-dub, dub, liab-xim av, tan, thiab lwm yam.
Lub hom phiaj ntawm kev kho blackening feem ntau muaj peb lub ntsiab lus hauv qab no:
1. Anti-xeb nyhuv ntawm hlau nto.
2. Ua kom muaj kev zoo nkauj thiab luster ntawm cov hlau nto.
3. Cov cua kub thaum lub sij hawm blackening yuav pab kom txo tau qhov kev ntxhov siab nyob rau hauv lub workpiece.
Vim hais tias kev kho blackening muaj cov teebmeem saum toj no, tus nqi qis, thiab qhov zoo yog siab, nws yog dav siv nyob rau hauv cov hlau nto kho thiab tiv thaiv xeb ntawm cov txheej txheem.
Post lub sij hawm: Aug-24-2022