Aluminium yog ib hom tshuaj sib xyaw heev. Aluminium profiles tau yooj yim tsim ib tug heev nyias (0.3-4μm) thiab uneven oxide zaj duab xis nyob rau hauv chaw. No cov zaj duab xis amorphous tau pluag gloss thiab tsis muaj kev tiv thaiv. Kev txhim kho kev muaj peev xwm, kev lag luam feem ntau yog siv cov txheej txheem oxidation coloring, thiaj li txheej txheej ntawm cov txhuas txheej ntawm 10μm los yog ntau dua, thiab cov hniav siv thiab cov khoom siv los tiv thaiv kev txhim kho kom zoo dua tuaj, tab sis, nyob hauv cov txheej txheem oxidative coloring, ntawm dyeing thiab tsis coloring feem ntau tshwm sim. Yuav ua li cas yog qhov no?
Ib qho ntawm cov laj thawj: oxide zaj duab xis dhau lawm, lub peev txheej adsorption tsis zoo, ua rau dyeing thiab tsis xim;
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Kev Tiv Thaiv: Tshawb xyuas cov txheej txheem ntawm cov txheej txheem anodizing.
1 Sulfuric acid concentration: Qhov concentration ntawm sulfuric acid nyob rau hauv electrolyte yog zoo txog kev loj hlob tus nqi ntawm oxide zaj duab xis. Lub thickening ntawm zaj duab xis yog proportional to dissolution rate. Qhov ntau dua qhov concentration ntawm sulfuric acid, sai dua qhov kev loj hlob tus nqi ntawm oxide zaj duab xis thiab lub siab dua qhov porosity. Qhov yooj yim dua nws yog dye cov xim, qhov qis qhov concentration ntawm sulfuric acid, dyed xim yog lub teeb heev lossis nyuaj xim, yog li cov concentration ntawm sulfuric acid yuav tsum tau tswj hauv cov kev cai tswjhwm.
2 Aluminium concentration: Thaum cov ntsiab lus ntawm Al3 + yog nyob rau hauv qhov ntau ntawm 1-12g / L, qhov ceev ntawm txhuas anodisation thiab zaj duab xis txheej yuav muaj ib tug zoo colour effect; yog tias nws tshaj li 20g / L, Al3 + yuav tsum tau hydrolyzed. Lub conductivity ntawm cov kua txo, thiab lub nto ntawm cov zaj duab xis yuav adsorb colloidal txhuas ions, ua rau dawb me ntsis nyob rau saum npoo ntawm cov txhuas profile, thiab lub peev xwm adsorption ntawm oxide zaj duab xis tseem yuav txo, ua rau pluag coloration. Yog li, qhov concentration ntawm Al3 + yuav tsum raug tswj ntawm 3-20g. Tsis pub dhau qhov ntau ntawm / L.
3 Tam sim no ceev ntu: Qhov ceev nrig yog siab heev, cov xim ntawm txhua qhov chaw ntawm txhuas profile tsis haum, ua rau tsis sib luag xim, uas yog tsis yeem ua kom sealing, qhov ceev nrawm no tsis tshua muaj tsawg, thiab qhov corrosion tsis ua hauj lwm thiab tsis kam ntawm zaj duab xis txheej tsis zoo, yog li ntawd Tus cwj pwm tam sim no yog tswj li ntawm 100-150 A / m2.
4 Oxidation voltage: Thaum qhov voltage tsawg dhau, cov pores ntawm oxide zaj duab xis yog loj, tab sis cov kab qhov pore tsawg dhau lawm; Yog hais tias qhov voltage siab dhau lawm, cov pores ntawm cov zaj duab xis oxide tsim yog me me, tab sis qhov pore diam yog loj, thiab qhov oxidation voltage yog yuav tsum tau tsim kom muaj ib lub hnab ntim thiab tsis muaj oxide zaj duab xis txheej. Kev tswj yog nyob rau hauv qee yam.
5 da dej kub: qhov kub ntawm lub da dej yog siab dhau lawm, qhov sov sov ntawm cov roj ntsha yog ceev heev, kev ceev ntawm cov zaj duab xis dissolution yog tseem accelerated, thiab cov oxide zaj dab tsi yog ploj hauv corrosion kuj; Thaum twg da dej kub yog 18-20 ° C, qhov generated Cov zaj duab xis oxide muaj zog tso tawm zog zoo, kev txhim kho corrosion thiab elasticity, tab sis kev hnav ua tsis zoo tshwj xeeb yog tsis zoo; qhov ntsuas kub ntawm da dej yog tswj ntawm 20 ± 2 ° C, thiab cov yeeb yaj kiab tsim tau hlau yog yooj yim xim.
