Anodizing puas tuaj yeem ua rau khawb tsis kam?

Anodizing puas tuaj yeem ua rau khawb tsis kam?

Txheej txheem cej luam ntawm Anodizing Technology

Anodizing yog txheej txheem electrochemical deg kev kho mob feem ntau siv rau kev hloov kho ntawm txhuas thiab nws cov alloys. Cov txheej txheem no suav nrog kev siv ncaj qha tam sim no rau cov khoom siv txhuas hauv cov khoom siv electrolyte, ua rau cov alumina ntom ntom rau ntawm nws qhov chaw. Cov oxide zaj duab xis no tsis tsuas yog txhim kho cov khoom siv corrosion tab sis kuj tseem txhim kho nws qhov tawv tawv thiab hnav tsis kam. Cov txheej txheem anodizing tuaj yeem muab faib ua ntau hom raws li cov electrolyte, suav nrog sulfuric acid anodizing, oxalic acid anodizing, thiab chromic acid anodizing. Sulfuric acid anodizing yog dav siv vim nws cov nqi qis thiab cov txiaj ntsig zoo.

Cov yeeb yaj kiab anodized muaj qhov tshwj xeeb honeycomb- zoo li cov qauv ntxeem tau, muab cov xwm txheej zoo tshaj plaws rau cov txheej txheem sib khi lossis dyeing tom ntej. Lub thickness ntawm oxide zaj duab xis yog feem ntau ntawm 5-25 micrometers, tab sis tuaj yeem ncav cuag ntau dua 50 micrometers hauv kev siv tshwj xeeb. Cov yeeb yaj kiab kev ua tau zoo muaj feem xyuam nrog cov txheej txheem tsis xws li thickness, electrolyte muaj pes tsawg leeg, tam sim no ceev, kub, thiab lub sij hawm ua.

Kev sib raug zoo ntawm Anodizing thiab Surface Hardness

Cov khoom tseem ceeb ntawm cov yeeb yaj kiab anodized yog aluminium oxide (Al₂O₃), nws qhov hardness ntau dua li cov khoom siv txhuas. Lub Vickers hardness ntawm zoo tib yam txhuas yog kwv yees li 100-150 HV, thaum tom qab anodizing, lub hardness ntawm deg tuaj yeem ncav cuag 300-500 HV, thiab nyuaj anodizing tuaj yeem ncav cuag tshaj 800 HV. Qhov no nce hardness ncaj qha txhais mus rau hauv zoo khawb kuj.

Lub hardness ntawm oxide zaj duab xis yog ze ze rau nws cov crystal morphology. Cov txhuas oxide tsim thaum lub sij hawm anodizing feem ntau yog amorphous, muaj me me ntawm -Al₂O₃ crystalline theem. Los ntawm optimizing cov txheej txheem tsis, tsim ntau crystalline theem yuav tsum tau nce, yog li ntxiv txhim kho cov zaj duab xis hardness. Kev tswj qhov kub thiab txias yog ib qho tseem ceeb; Kev ua haujlwm qis dua (feem ntau yog 0-10 degree) yog qhov zoo rau kev tsim cov denser thiab nyuaj oxide zaj duab xis.

Scratch Resistance Mechanism ntawm Anodized Films

Kev khawb tsis kam ntawm cov yeeb yaj kiab anodized yog ua tiav los ntawm peb lub tswv yim: Ua ntej, lub siab tawv ntawm alumina nto tiv taus feem ntau txhua hnub kev sib txhuam thiab khawb; Thib ob, lub elastic modulus ntawm oxide zaj duab xis yog siab dua li ntawm cov khoom siv hauv paus aluminium, uas cuam tshuam cov kev ntxhov siab hauv zos thiab tiv thaiv cov yas deformation los ntawm khawb; thib peb, qhov zoo heev adhesion ntawm oxide zaj duab xis thiab lub substrate kom ntseeg tau tias nws yuav tsis yooj yim tev tawm nyob rau hauv sab nraud quab yuam.

Hauv kev siv cov tswv yim, qhov khawb tsis kam ntawm cov ntaub ntawv aluminium anodized yog pom los ntawm: tiv thaiv khawb los ntawm cov khoom siv hlau xws li cov yawm sij thiab npib; txo qhov kev puas tsuaj los ntawm kev tuav thiab sib dhos txhua hnub; thiab tuav ntev - lub sij hawm zoo li kev ncaj ncees nyob rau hauv ib puag ncig kev sib txhuam me me. Txawm li cas los xij, txhob txwm khawb los ntawm ultra- cov ntaub ntawv nyuaj xws li pob zeb diamond thiab silicon carbide tseem tuaj yeem tso cov cim pom ntawm qhov chaw anodized.

Yam tseem ceeb cuam tshuam rau Scratch Resistance

Kev khawb tsis kam ntawm cov yeeb yaj kiab anodized yog cuam tshuam los ntawm ntau yam. Zaj duab xis thickness yog ib qho ncaj qha; Feem ntau, qhov tuab ntawm zaj duab xis, qhov zoo dua qhov khawb kuj. Txawm li cas los xij, ib zaj duab xis tuab heev tuaj yeem ua rau brittleness, yog li txo qhov cuam tshuam tsis kam. Hom electrolyte kuj tseem ceeb heev. Sulfuric acid tshuab tsim cov oxide zaj duab xis nrog cov hardness siab dua, thaum cov kua qaub sib xyaw tuaj yeem ua kom zoo dua cov yeeb yaj kiab.

Sealing yog lwm kauj ruam tseem ceeb. Cov qauv ntxeem tau tsim tom qab anodizing yuav tsum tau muab ntim nrog cov txheej txheem xws li dej kub sealing, txias sealing, los yog chav sealing. Zoo sealing tsis tsuas yog txhim kho corrosion kuj, tab sis kuj txo cov coefficient ntawm kev sib txhuam los ntawm nto smoothing, indirectly txhim kho khawb kuj. Tsis tas li ntawd, kev qhia txog cov khoom siv ntxiv xws li cov organic acids lossis cov ntsiab lus tsis tshua muaj hauv ntiaj teb tuaj yeem ua kom zoo dua cov oxide zaj duab xis qauv thiab txhim kho qhov tawv tawv.

Kev sib piv ntawm Anodizing nrog lwm cov kev kho deg

Piv nrog rau cov txheej txheem kev kho saum npoo ib txwm muaj, anodizing muaj qhov tshwj xeeb zoo hauv kev khawb tsis kam. Thaum cov xim zoo tib yam lossis hmoov txheej muaj ntau yam xim xaiv, lawv qhov hardness feem ntau tsuas yog 2-3H (xov tawv hardness), qis dua 8-9H ntawm qhov chaw anodized. Electroplating, thaum ua tiav high-hardness nto, raug kev txom nyem los ntawm cov tsis zoo adhesion thiab ib puag ncig teeb meem.

Piv nrog rau cov thev naus laus zis tshiab xws li lub cev vapor deposition (PVD), anodizing muaj txiaj ntsig zoo thiab tsim nyog rau kev ua haujlwm- zoo li cov khoom ua haujlwm. Txawm li cas los xij, thaum cov txheej PVD tuaj yeem muab cov tawv tawv dua (piv txwv li, pob zeb diamond-xws li cov pa roj carbon films tuaj yeem ncav cuag 2000-3000 HV), lawv kuj tseem ua rau cov cuab yeej siv peev thiab cov txheej txheem nyuaj. Hauv kev siv cov tswv yim, cov kev xav tau ntawm kev ua haujlwm, kev siv nyiaj txiag, thiab kev tsim khoom yuav tsum raug txiav txim siab.

Piv txwv ntawm Anodizing rau Scratch Resistance

Kev khawb-cov khoom tiv taus ntawm anodizing tau ua rau nws siv dav hauv ntau qhov chaw. Cov khoom siv hluav taws xob xws li lub laptop casings thiab smartphone bezels feem ntau siv anodizing los tiv thaiv kev sib txhuam thiab khawb thaum siv txhua hnub. Hauv kev lag luam tsheb, anodized aluminium trim strips thiab dashboard Cheebtsam tswj lawv cov tsos zoo nyob rau lub sijhawm ntev.

Hauv cov khoom siv hauv kev lag luam, cov khoom txav xws li cov lus qhia thiab cov sliders tau siv zog anodizing, uas txo qhov hnyav thaum ua kom muaj kev tiv thaiv. Anodized aluminium profiles siv nyob rau hauv kev tsim kho tsis tsuas yog txhim kho huab cua tsis kam, tab sis kuj tiv thaiv nto puas thaum lub sij hawm installation thiab siv. Cov ntawv thov no qhia tau hais tias muaj txiaj ntsig zoo ntawm anodizing hauv khawb tsis kam.

Kev txwv ntawm Anodizing rau Scratch Resistance

Txawm hais tias anodizing ho txhim kho nto khawb tiv thaiv, qee qhov kev txwv tseem muaj nyob. Rau qhov kev sib txhuam hnyav heev (xws li gravel cuam tshuam), yooj yim anodizing yuav tsis muaj kev tiv thaiv txaus. Cov oxide zaj duab xis yog qhov tseem ceeb ntawm cov khoom siv ceramic, thiab microcracks tuaj yeem tshwm sim nyob rau hauv kev cuam tshuam muaj zog.

Kev khawb tsis kam ntawm cov khoom siv xim anodized feem ntau yog qis dua li cov khoom tsis muaj xim anodized vim tias cov txheej txheem dyeing yuav cuam tshuam rau kev ncaj ncees ntawm cov qauv zaj duab xis. Xim anodized khoom raug ultraviolet lub teeb rau ncua sij hawm kuj yuav fading; Txawm hais tias qhov nyuaj ntawm qhov saum npoo tseem tsis hloov pauv, cov nyhuv tiv thaiv maj mam txo qis. Tsis tas li ntawd, anodizing tsis haum rau tag nrho cov aluminium alloys; qee qhov siab - tooj liab alloys qhia tau tias tsis zoo anodizing.

Kev Txhim Kho Yav Tom Ntej

Nrog kev nce qib hauv cov ntaub ntawv tshawb fawb thiab thev naus laus zis thev naus laus zis, anodizing khawb- thev naus laus zis tsis tu ncua. Nanocomposite anodizing thev naus laus zis, los ntawm kev qhia txog nanoparticles (xws li SiO₂ thiab TiO₂) los sau cov pores ntawm oxide zaj duab xis, tuaj yeem txhim kho qhov tawv thiab tawv. Micro-arc oxidation (plasma electrolytic oxidation) thev naus laus zis tuaj yeem tsim cov txheej txheej tuab ntawm cov xim hlau xws li txhuas, magnesium, thiab titanium, uas ua rau muaj kev tiv thaiv zoo heev.

Kev txawj ntse tus kheej- kho anodic oxide zaj duab xis yog lwm txoj kev tshawb fawb, ua kom lub ntsej muag micro- puas tsuaj rau tus kheej - kho los ntawm encapsulation ntawm corrosion inhibitors lossis kev taw qhia ntawm cov ntaub ntawv nco. Txoj kev loj hlob ntawm ib puag ncig tus phooj ywg electrolyte systems kuj tau txais kev saib xyuas, aiming kom muaj kev ua tau zoo thaum txo cov pa phem ib puag ncig. Cov kev tsim kho tshiab no yuav nthuav dav ntxiv rau daim ntawv thov kev cia siab ntawm anodizing hauv thaj tsam ntawm khawb tsis kam.

Xaus

Hauv cov ntsiab lus, anodizing tiag tiag ua tau zoo khawb tsis kam, feem ntau yog vim qhov nyuaj alumina txheej txheej nws tsim. Los ntawm kev txhim kho cov txheej txheem tsis zoo, tswj cov yeeb yaj kiab tuab, thiab ua raws li qhov tsim nyog - kev kho mob, qhov chaw ua tau raws li qhov yuav tsum tau muaj kev khawb txhua hnub tuaj yeem ua tau. Txawm hais tias muaj qee qhov kev txwv, anodizing tuav txoj haujlwm tseem ceeb hauv kev tiv thaiv saum npoo vim nws cov nqi zoo heev -kev ua tau zoo thiab cov txheej txheem paub tab. Nrog kev txhim kho thev naus laus zis, kev ua haujlwm tsis zoo ntawm anodizing yuav txuas ntxiv txhim kho, muab cov kev daws teeb meem txhim khu kev qha rau ntau daim ntawv thov scenarios.