摘要:
Metallic substrate treatment methods and articles comprising a phosphonate functionalized layer are provided. The method comprises contacting a metallic substrate comprising at least one of aluminum and an aluminum alloy with a fluid to form a phosphonate functionalized layer on at least a region of the metallic substrate. The fluid comprises at least one of a phosphonate containing acid and a derivative thereof. At least one of the phosphonate containing acid and the derivative thereof comprises a pKa of a first acidic proton. The fluid comprises a pH at least 0.5 pH value greater than the pKa of the first acidic proton. The article comprises a metallic substrate comprising aluminum or an aluminum alloy and a phosphonate functionalized layer on at least a region of the metallic substrate.
摘要:
The present invention relates to a solution that is free of chromium in all its oxidising states, comprising: - at least one chemical oxidising compound, - at least one aluminium complexing agent, - at least one corrosion inhibiting compound, and -optionally, a chemical sealant compound, the solution having a pH in the range from 1 to 5. The present invention also relates to a method for treating a metal surface, comprising the application, on the surface, of a solution as defined above. The present invention additionally relates to a coating of a metal surface that can be obtained by the method for treating a metal surface as defined above, to a metal surface comprising the coating and to the use of the solution in an anti-corrosion treatment of a metal surface.
摘要:
Methods, systems and apparatuses for treating operating aluminum desmutting solutions by reacting, mixing and filtering a partial desmutting solution flow are disclosed.
摘要:
An adhesive (B) of solvent containing adhesive as a suspension of low viscosity is prepared by adding a solvent MIBK to a one-part epoxy adhesive of a dicyandiamide-curable type (A). Metal shaped articles (M1 to M5) as adherends are prepared each of which, through various surface treatment, has specific surface configuration of roughened face and/or ultrafine irregularities and the surface is entirely covered with a thin layer of ceramics such as a metal oxide or metal phosphate. The specified face of each metal shaped article (M1 to M5) is painted with the solvent containing adhesive (B). The faces painted with the adhesive of two metal shaped articles (M1 to M5) are caused to abut each other, the articles are heated to cure the one-epoxy adhesive to accomplish adhesion. With one of the adherends replaced by a CFRP shaped article (P2), a composite of a metal and CFRP can be formed.
摘要:
The present invention discloses an improved cleaning composition for cleaning metal surfaces such as aluminum and aluminum-containing alloys. The cleaning composition of the present invention comprises water and an ethoxylate of an alcohol having Formula R1—OH wherein R1 is a saturated or unsaturated, straight-chain or branched aliphatic having from 12 to 80 carbon atoms; an inorganic pH adjusting component; and at least one surfactant that is different than the ethoxylate set forth above. The cleaning composition of the present invention also has an average water-break-free percent reduction of less than 50% after 7 days aging of a working composition prepared from the cleaning composition. The present invention also provides a method of cleaning a metal surface with the cleaning composition of the invention.
摘要:
An ordering structure scintillator of scintillator and fabrication method is disclosed. The ordering structure scintillator of scintillator comprises: a tubular template, which consists of a plurality of thin film oxidized metal tubes; a plurality of scintillators, filled in the thin film oxidized metal tubes; and a package layer, formed on the surface of the tubular template for protecting the tubular template. In addition, through the fabrication method, the ordering structure scintillator of scintillator can be made by anodic treatment and die casting technology with low cost and rapid production; moreover, the film oxidized metal tubes of the tubular template can be further manufactured to nano tubes by adjusting electrolyte composition, electrolysis voltage, and processing time of anodic treatment, and the aperture size, the thickness and the vessel density of the nano tube can be controlled and ranged from 10 nm to 500 nm, 0.1 μm to 1000 μm, and 108 to 1012 tube/cm2, respectively.
摘要:
A surface treatment method for components made of aluminum or aluminum alloys, involving treatment steps of alkaline cleaning, rinsing, alkaline pickling, rinsing, acid pickling, rinsing, also involves a step of conducting a visual inspection for soft spots after the alkaline cleaning in step or the alkaline pickling.
摘要:
The invention relates to compositions and methods that are useful in etching a metal surface. In particular, the invention relates to novel acid compositions and methods of using such compositions in etching a metal surface, preferably an aluminum surface prior to anodizing to dissolve impurities, imperfections, scale, and oxide. The compositions are effective in maintaining their etching capacity and in removing smut produced by the etching of a surface as well as in general cleaning.
摘要:
A method of conditioning the surface of a work piece, particularly of a strip or sheet, more particularly of a lithostrip or lithosheet, including an aluminum alloy is provided. The method for conditioning the surface of a work piece and a work piece including an aluminum alloy enabling an increasing manufacturing speed in electro-chemically graining and maintaining at the same time a high quality of the grained surface, includes a conditioning method which comprises at least the two steps, degreasing the surface of the work piece with a degreasing medium and subsequently cleaning the surface of the work piece by pickling.
摘要:
An aluminum article includes a substrate comprising a surface having a plurality of nano-pores defined therein by chemical etching; and a transparent vacuum deposition layer deposited on the surface and filling the nano-pores.