METHOD FOR ANTICORROSION TREATMENT OF ALUMINIUM SURFACE

FIELD: chemistry.SUBSTANCE: invention relates to methods of anticorrosive surface treatment of aluminium articles. Surface of article is subjected to pulse power action by radiation of pulsed fibre-optic ytterbium laser with wavelength of 1.065 mcm at specific radiation power of 4.539⋅10...8.536⋅10W...

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Bibliographische Detailangaben
Hauptverfasser:	Chausov Fedor Fedorovich, Pisareva Tatyana Aleksandrovna, Gilmutdinov Faat Zalalutdinovich, Kharanzhevskij Evgenij Viktorovich, Borisova Elena Mikhajlovna, Reshetnikov Sergej Maksimovich
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	FIELD: chemistry.SUBSTANCE: invention relates to methods of anticorrosive surface treatment of aluminium articles. Surface of article is subjected to pulse power action by radiation of pulsed fibre-optic ytterbium laser with wavelength of 1.065 mcm at specific radiation power of 4.539⋅10...8.536⋅10Wt/cm, pulse repetition rate 20...40 kHz and surface scanning speed by laser radiation 250...700 mm/s. Hydrophobisation of the surface is then carried out with an aqueous solution of vinyltriethoxysilane.EFFECT: technical result is obtaining on surface of article made of aluminium of tight impermeable passive hydrophobic film of aluminium oxide, effectively protecting metal from corrosion.1 cl, 4 dwg, 1 tbl Изобретение относится к способам антикоррозионной обработки поверхности изделий из алюминия. Поверхность изделия подвергают импульсному энергетическому воздействию излучением импульсного оптоволоконного иттербиевого лазера с длиной волны 1,065 мкм при удельной мощности излучения 4,539⋅10... 8,536⋅10Вт/см, частоте следования импульсов 20 ... 40 кГц и скорости сканирования поверхности лазерным излучением 250 ... 700 мм/с. Затем осуществляют гидрофобизацию поверхности водным раствором винилтриэтоксисилана. Технический результат заключается в получении на поверхности изделия из алюминия плотной непроницаемой пассивной гидрофобной пленки оксида алюминия, эффективно защищающей металл от коррозии. 4 ил., 1 табл.