Yuav Ua Li Cas Muaj Anodized Ntawv Xim Xim Ua Haujlwm
Anodized foil coloring yog tsib - kauj ruam ntawm kev tswj cov tshuaj thiab electrochemical kev ua haujlwm: alkaline degreasing, DC anodizing, xim, sealing thiab tshuaj xyuas. Lub substrate yog nyias aluminium ntawv ci, feem ntau alloy 8011, 1235 los yog 8079 nyob rau hauv gauges li ntawm 20 mus rau 200 µm, thiab cov anodic zaj duab xis loj hlob nyob rau hauv thiab sab nraud ntawm tus thawj nto, yog li kwv yees li ib nrab ntawm cov txheej thickness zaum hauv qab lub pre- anodized lub ntsej muag. Vim tias cov ntawv ci muaj qhov chaw siab heev- rau- ntim piv, lub vev xaib ceev ceev, kev faib tawm ceev tam sim no thiab electrolyte tiv tauj txhua tus yuav tsum tau kho ua ke; ib qho parameter uas tau txais ntawm 1 hli extrusion tuaj yeem rhuav tshem lub vev xaib 30 µm.
Kauj Ruam -los ntawm - Cov Txheej Txheem Txheej Txheem
Degreasing: alkaline ntxuav ntawm 50-60 degree, 30-60 g / L, 30-90 s nyob, mus strip dov cov roj thiab cov roj uas seem. Tsis tiav degreasing yog feem ntau ua rau mottled, streaky xim.
Anodizing: 15-20 V DC hauv 165-200 g / L sulfuric acid ntawm 18-22 degree, tam sim no ceev txog 1.0-2.0 A / dm². Kev loj hlob ntawm zaj duab xis yog kwv yees li 0.3-0.5 µm ib feeb ntawm 1.5 A / dm², thiab cov yeeb yaj kiab ua haujlwm rau xim yog feem ntau 5-20 µm.
Dye immersion: organic zas da dej ntawm 60-80 degree, pH 4.5-6.0, 1-10 g / L, 5-20 min. Colorant nkag mus rau hauv lub pore qauv los ntawm capillary kev txiav txim thiab tuav nyob rau hauv lub Upper ib feem ntawm kab.
Electrolytic coloring: alternating tam sim no nyob rau hauv ib da dej ntawm tin, cobalt los yog nickel ntsev, feem ntau 2-5 min ntawm 50 Hz. Cov hlau los yog hlau oxide tso rau ntawm lub hauv paus pore thiab ua rau lub teeb- ceev ceev bronze thiab dub tones.
Sealing: npib tsib xee acetate sealing ntawm 95-100℃thiab pH 5.5-6.0 rau 15-30 min, kub deionised dej sealing, los yog trivalent chromium / nickel-dawb lwm txoj.
Kev tshuaj xyuas: xim sib txawv tiv thaiv tus tswv vaj huam sib luag, txheej txheej ib ASTM B137, thiab nruab nrab ntsev tsuag ib ASTM B117.
Dye Immersion piv rau Electrolytic Coloring
| Feature | Organic xim immersion | Electrolytic xim |
|---|---|---|
| Xim ntau yam | Heev dav, nrog rau ci liab, xiav thiab kub | Txwv rau bronze, grey, dub thiab champagne tones |
| Lub teeb ceev ceev | Nruab nrab; tuaj yeem ploj mus nyob rau hauv qhov raug UV | Siab; cov deposit yog inorganic thiab tsis bleach yooj yim |
| Cov txheej txheem tswj | Dye concentration, pH thiab nyob lub sijhawm | Voltage thiab waveform modulation muab kev tswj qhov tob |
| Hom nyob | 5-20 feeb immersion | 2-5 min ntawm 50 Hz |
| Zoo tshaj plaws | Decorative neeg siv khoom thiab architectural ntawv ci | Sab nrauv trim, automotive thiab ntev -cov ntawv ci sab nraum zoov |
Tsis zoo thiab nyob rau hauv -Kev Tswj Xyuas Zoo
Qhov tsis sib xws tam sim no yog lub hauv paus ua rau feem ntau cov kev tsis txaus siab ntawm cov xim: panels coj los ntawm ntug ntawm lub jig tuaj yeem txawv ntawm qhov chaw los ntawm ntau chav nyob ntawm cov xim sib txawv, yog li lub khw ib txwm kam rau siab yog xim sib txawv nyob rau hauv 2 units ntawm tus tswv vaj huam sib luag, nrog 5 units kho raws li qhov txwv tsis pub. Cov kab mob electrolyte thiab rub tawm - hauv cov tshuaj chloride ua rau cov pob qij txha thiab tsaus nti, thiab kev tsom xam da dej ntxiv rau kev pom ntawm lub sijhawm ruaj khov tiv thaiv lawv feem ntau. Nyob rau hauv - sealing tawm lub pore qauv qhib thiab txiav corrosion kuj, uas yog vim li cas sealing zoo yog xyuas los ntawm txheej txheej thiab ntsev tsuag es tsis yog los ntawm cov tsos ib leeg. Ntawm cov ntawv nyias nyias lub txheej yuav tsum nyob qis dua li 20 µm; thicker brittle films tawg thiab craze thaum lub web yog tom qab slit, corrugated los yog khoov. Inline spectrophotometric xim ntsuas thiab tsis siv neeg tam sim no- kev kho qhov ceev tam sim no tso cai rau lub vev xaib txuas ntxiv los tuav cov duab ntxoov ntxoo nyob rau hauv ib txoj hlua nruj.
Kev Ua Raws Li Kev Tsav Tsheb thiab Kev Siv Cov Qauv
Ob txoj cai kwj deg zoo li niaj hnub anodized ntawv xim xim kab. Hexavalent chromium compounds siv nyob rau hauv cov tsoos sealing da dej yog raug tso cai raws li EU REACH txoj cai, thiab ob peb txoj cai txwv tsis pub lawv siv nyob rau hauv deg kho dej khib nyiab. Hauv Suav teb, electroplating pollutant emission standard GB 21900 thiab kev sib xyaw dej khib nyiab pov tseg tus qauv GB 8978 tau teeb tsa nruj txwv tsis pub chromium, npib tsib xee thiab lwm yam hlau hnyav hauv effluent ntawm anodizing thiab coloring khw. Kev lag luam teb tau peb zaug: kev hloov pauv mus rau trivalent chromium sealing, uas txo cov tshuaj lom ntawm cov da dej ntau heev; txoj kev loj hlob ntawm npib tsib xee- pub dawb sealing tshuab; thiab kaw - voj rinsing nrog ion txauv lossis daim nyias nyias, uas txo cov dej yaug los ntawm cov npoo loj. Cov kab ntawv foil uas tau txais cov kev ntsuas no thaum ntxov qhia txog kev cuam tshuam kev ua raws cai tsawg dua thiab ruaj khov da dej chemistry.
Electronics yog qhov ceev tshaj plaws - qhov hluav taws xob loj hlob rau cov xim anodized ntawv ci. A dense colored anodic layer on aluminium foil and formed sheet acts as a dielectric barrier and provides electromagnetic interference attenuation in the tens of decibels, which makes it attractive for shielding cans, battery housings and decorative structural parts. Vim hais tias cov oxide matrix yog ib qho insulator, cov qauv tuaj yeem sau rau hauv nws los ntawm laser ablation los tsim cov kab sib cais thiab cov kav hlau txais xov ncaj qha rau ntawm cov hlau. Micro-arc anodizing ntawm nyias titanium thiab txhuas substrates rau smartphone backplates yog ib qho kev sib piv, sib txuas khawb tiv thaiv nrog lub dav gamut ntawm kev ua tiav ntxoov ntxoo. Hauv kev ntim khoom, cov ntawv ci xim anodized yog siv rau lub hau npog, cov tshuaj ntsiav thiab cov laminates zoo nkauj qhov twg nws yog xim hlau qhov tob ntawm cov xim thiab luam tawm ob qho tib si.
Cov lus nug nquag
Q: Vim li cas cov ntawv ci yuav tsum tau degreased kom zoo ua ntej anodizing?
Rolling roj sab laug rau saum npoo tsim ib qho kev tiv thaiv uas ua rau cov yeeb yaj kiab loj hlob tsis sib xws thiab blotchy xim. Alkaline degreasing ntawm 50-60℃tom qab los ntawm kev yaug tag nrho tshem tawm cov roj zaj duab xis thiab muab cov dej sib xws, dej -so-dawb nto.
Q: Yuav ua li cas yog zaj duab xis thickness tswj ntawm ib tug nruam web kab?
Thickness yog cov khoom ntawm qhov ceev tam sim no thiab nyob hauv lub sijhawm anodizing. Nyob rau ntawm lub vev xaib txav lub sijhawm nyob yog kho los ntawm kab nrawm, yog li cov tuab yog tswj los ntawm kev kho qhov ceev tam sim no thiab los ntawm kev tshuaj xyuas txheej txheej ntawm ASTM B137 ntawm ib ntus.
Q: Txoj kev xim twg ua rau sab nraum zoov zoo dua?
Electrolytic coloring nrog tin, cobalt los yog npib tsib xee ntsev yog qhov kev xaiv ruaj khov dua vim tias cov xim pleev xim tsis muaj zog thiab tsis ploj mus rau qhov raug ultraviolet. Organic dyes yuav tsum tau tshwj tseg rau kev siv sab hauv tsev.
Q: Dab tsi ua rau tsaus nti ntawm cov xim anodized ntawv ci?
Speckling feem ntau yog taw qhia rau cov kab mob electrolyte, chloride rub-hauv lossis nplua hlau uas muaj nyob hauv qhov raug ncua. Kev tsom xam da dej, pom thiab zoo dua yaug kev qhuab qhia ntawm cov tso tsheb hlau luam feem ntau tshem tawm qhov tsis xws luag.
Q: Puas yog sealing xaiv tau?
Tsis yog. Sealing kaw cov qauv ntxeem tau thiab yog dab tsi hloov cov xim xim rau hauv ib qho corrosion-resistant nto. Unsealed foil qhia tau hais tias qis dua ntsev tsuag lub neej thiab tuaj yeem tso cov dye lossis hlau ntsev thaum nws los rau hauv cov dej noo.
Q: Cov ntawv ci anodized puas tuaj yeem welded lossis soldered tom qab?
Anodic coatings yog cov hluav taws xob insulators, yog li lawv yuav tsum tau muab tshem tawm hauv zos los ntawm qhov sib koom ua ke ua ntej vuam, soldering los yog kev sib koom ua ke. Mechanical abrasion, laser ablation los yog xaiv tshuaj stripping tag nrho cov hauj lwm, muab lub stripped cheeb tsam yog re- tiv thaiv tom qab koom.
