1. Tshuaj Oxidation tshem tawm txoj kev
Kev kho tshuaj lom neeg yog txoj kev siv ntau tshaj plaws rau kev tshem tawm cov tooj liab oxide vim nws cov kev ua haujlwm siab, tus nqi qis, thiab tsim nyog rau kev tsim khoom loj.
1.1 Acid Pickling
Acid pickling siv cov tshuaj acidic kom hnov mob nrog tooj liab oxides thiab yaj lawv. Cov tshuaj nquag muaj xws li dilute sulfuric acid, hydrochloric acid, citric acid, thiab phosphoric acid. Inorganic acids muaj zog oxide tshem tawm muaj peev xwm thiab ceev ceev, haum rau hnyav oxidation. Txawm li cas los xij, kev xeb ntau dhau tuaj yeem ua rau ntau tshaj -etching thiab seem poob. Organic acids xws li citric acid yog me me, muaj kev nyab xeeb dua, thiab ntau tus phooj ywg ib puag ncig, feem ntau siv rau lub teeb oxide thiab cov khoom zoo. Kev tswj kom zoo, qhov kub thiab txias, thiab lub sij hawm immersion yuav tsum tau tswj los tiv thaiv tooj liab substrate.
1.2 Kev tshem tawm Alkaline Oxidation
Cov tshuaj alkaline feem ntau yog siv nrog cov tshuaj ntxiv kom tshem tawm lub teeb oxides thiab cov roj stains. Lawv yog cov mos mos thiab tsis tshua muaj peev xwm ua rau erosion ntau dhau. Cov qauv tsim muaj xws li sodium hydroxide nrog cov neeg ua haujlwm nyuaj. Kev ntxuav Alkaline feem ntau yog siv ua ntej- kev kho mob ua ntej pickling kom tshem tawm cov roj, txhim kho qhov sib xws ntawm kev tshem tawm oxide tom ntej.
1.3 Kev kho mob Passivation
Tom qab tshem tawm oxide, tooj liab nto tau yooj yim dua -oxidize. Passivation tsim ib zaj duab xis tiv thaiv nyias los txhim kho kev ruaj ntseg. Passivation cov kev daws teeb meem feem ntau muaj cov organic inhibitors lossis zaj duab xis- tsim cov neeg ua haujlwm, muab luv- lub sij hawm tiv thaiv -tarnish tiv thaiv rau kev khaws cia thiab kev thauj mus los.
2. Mechanical Oxidation Removal Methods
Cov txheej txheem kev siv lub cev tshem tawm cov txheej txheem oxide los ntawm kev sib txhuam los yog kev cuam tshuam, haum rau qhov chaw uas yuav tsum tau ua kom tiav qhov siab los yog tuab oxide nplai.
2.1 Polishing thiab sib tsoo
Los ntawm txhais tes los yog mechanical polishing siv abrasive daim ntaub, sandpaper, polishing log, los yog sib tsoo discs kom tshem tawm cov nto oxides. Nws yog dav siv rau daim hlau, tuav, profiles, thiab cov khoom zoo nkauj. Txoj kev no tuaj yeem txhim kho flatness thiab gloss, tab sis yuav ua rau micro- khawb.
2.2 Blasting thiab tua Peening
Sandblasting lossis txhaj tshuaj peening siv siab - cov khoom nrawm los cuam tshuam rau saum npoo, stripping oxides sai. Nws yog tsim rau qhov loj, tuab oxide txheej, thiab forged Cheebtsam. Txawm li cas los xij, nws hloov qhov roughness ntawm qhov chaw thiab tsis pom zoo rau cov khoom siv hluav taws xob.
2.3 Tumbling thiab vibration tiav
Lub thoob khib nyiab lossis kev vibration sib tsoo siv cov abrasives thiab ntxuav cov kua kom tshem tawm cov oxides hauv cov khoom. Nws yog tsim rau me me, fasteners, connectors, thiab tshuab Cheebtsam, nrog siab sib xws thiab tsis tshua muaj nqi zog.
3. Electrochemical Oxidation Removal Methods
Electrochemical de-oxidation siv cov tshuaj electrolytic kom tshem tawm cov oxides zoo thiab sib npaug. Cov khoom siv tooj liab yog muab tso rau hauv ib lub xovtooj ntawm electrolytic nrog rau cov khoom siv electrolyte. Los ntawm kev siv hluav taws xob tam sim no, oxides raug txo los yog yaj. Txoj kev no ua tiav kev tu ib yam, txawm nyob rau ntawm cov duab nyuaj, qhov, thiab grooves. Nws yog dav siv nyob rau hauv electronics, connectors, terminals, thiab qhov chaw uas yuav tsum tau huv huv.
4. Thermal and Atmospheric Treatment Methods
High -kub oxidation tuaj yeem raug tshem tawm los ntawm kev tswj cua sov. Cov cua kub hauv qhov chaw txo qis, xws li hydrogen lossis tawg ammonia, txo cov tooj liab oxide rov qab rau cov hlau tooj liab. Txoj kev no feem ntau siv rau hauv kev sib tsoo ntawm tooj liab hlau, sawb, thiab raj, ua tiav oxide tshem tawm thiab muag muag ib txhij. Nws ua kom huv si, ci ntsa iab yam tsis muaj tshuaj lom neeg.
5. Kev sib piv thiab xaiv cov txheej txheem
Acid pickling yog tus nqi qis -nqi thiab siv tau rau cov khoom siv dav dav. Mechanical txoj kev txhim kho nto zoo thiab gloss. Electrochemical tu kom ntseeg tau siab uniformity rau precision Cheebtsam. Kev txo cov cua sov yog qhov zoo tagnrho rau huab cua huab cua- kho cov khoom. Kev xaiv nyob ntawm oxide thickness, ib feem ntawm cov duab, qhov tseeb qhov tseeb, qhov xav tau ntawm qhov chaw, tus nqi, thiab kev cai ib puag ncig. Tom qab kev kho mob, ziab kom raws sij hawm, tiv thaiv - oxidation roj, los yog passivation yog qhov tseem ceeb los tiv thaiv re- oxidation.
Xaus
Nyob rau hauv cov ntsiab lus, ntshiab tooj liab oxidation tshem tawm muaj xws li tshuaj, mechanical, electrochemical, thiab thermal txoj kev. Txhua tus muaj qhov zoo thiab siv tau cov xwm txheej. Kev xaiv kom raug ua kom huv si, tswj kev ua haujlwm, thiab txhim kho cov khoom ntseeg tau. Nrog rau qhov kev thov ntau ntxiv rau kev tiv thaiv ib puag ncig thiab kev ua tau zoo, kev daws teeb meem me me, tshuaj ntxuav hluav taws xob, thiab kev tswj hwm huab cua tau dhau los siv dav hauv kev lag luam niaj hnub tooj liab.
