摘要:
The invention relates to a method for the electrochemical polishing of metal surfaces by means of repeating pulse sequences, wherein at least one anodic pulse is provided, the current intensity of which rises continuously in the time curve up to a specifiable value. The invention further relates to the use of said method for components produced in 3-D and to a system therefor.
摘要:
A method for electropolishing a manufactured metallic article, the method comprising: contacting the metallic article with an electropolishing electrolyte; and electropolishing the metallic article in the electropolishing electrolyte through the application of an applied current regime comprising: at least one electropolishing regime, each electropolishing regime comprising a current density of at least 2 A/cm2 and a voltage comprising a shaped waveform having a frequency from 2 Hz to 300 kHz, a minimum voltage of at least 0 V and a maximum voltage of between 0.5 to 500 V.
摘要:
The present invention relates to a method for manufacturing an aluminum alloy anodized film having a superhydrophobic surface and an aluminum alloy having an anodized film with a superhydrophobic surface manufactured by the method. The present invention has an economical effect that an aluminum alloy, in which a three-dimensional shaped anodized film structure formed on the surface thereof is controlled in various forms, such as a pillar-on-pore structure, may be manufactured at low costs within a short time. The aluminum alloy with the controlled anodized film structure has excellent superhydrophobicity, corrosion resistance, and thermal conductivity, and thus may be used in various industrial fields, such as electronic device housings, LED lighting covers, heat exchangers, pipes, road structures, automobiles, aircrafts, ships, and generators.
摘要:
Disclosed is a nanowire bundle array. Particularly, the nanowire bundle array according to an embodiment of the present disclosure includes a plurality of nanowire assemblies arranged therein. Each of the nanowire assemblies includes nanowires, a surface of at least a portion of which is coated with a thin metal film and the widths between the nanowires gradually decrease from one end to another end.
摘要:
A method for subjecting garment accessories to a surface electrolytic treatment provides various metallic colors to metallic garment accessories in a cost effective manner. The method can provide a first metallic color on one side of outer surface of the garment accessory and provide a second metallic color on the other side of the outer surface, by placing one or more metallic garment accessories in an electrolytic solution in a non-contact state with an anode and a cathode for passing electric current through the electrolytic solution, passing electric current through the electrolytic solution and generating a bipolar phenomenon on the garment accessory.
摘要:
A method for electropolishing a metal substrate comprises submerging at least part of the metal substrate in an electrolyte solution and applying electrical current to the metal substrate to form an electrical circuit where the metal substrate is the anode. The electrolyte solution comprises phosphoric acid and at least one acrylic monomer and/or acrylic polymer.
摘要:
Anode foil, preferably aluminum anode foil, is etched using a process of treating the foil in an electrolyte bath composition comprising a perfluoroalkylsulfonate, a sulfate, a halide, and an oxidizing agent. The anode foil is etched in the electrolyte bath composition by passing a direct current charge through the bath. The etched anode foil is suitable for use in an electrolytic capacitor.
摘要:
The present invention discloses preparation of a reflective image component and application method thereof. A reflective image component in the present invention consists of a metallic semi-continuous thin film, a porous alumina film and a high reflective metal substrate. The structure is easy in preparation, low in cost, environmental friendly regarding preparing procedures and suitable for large-scale fabrication, which plays a significant role in developing a next generation of image component; the minimum pixel in the image obtained is able to reach nano level, much smaller than the pixel in most of the self-luminous screens at present; the image also provides the ability of reversible color transformations, which can be applied to information encryption and trademark decoration and the like.
摘要:
The invention discloses an anodization sealing process for an aluminum or aluminum alloy element for vehicles, including the steps for rinsing with pure water, electrolysis, rinsing once again, electrical deposition sealing, rinsing with pure water several times and baking. The aluminum or aluminum alloy element for vehicles obtained thus has improved alkali resistance and erosion resistance.
摘要:
Provided is an anodic oxidation treatment method for an aluminum material including aluminum or an aluminum alloy capable of forming a porous anodic oxide film of a porous type at a treatment voltage of 10 V or more while suppressing manifestation of a crystal grain pattern to the extent possible. Specifically, provided is an anodic oxidation treatment method for an aluminum material for subjecting an aluminum material to anodic oxidation treatment in a treatment bath of a polybasic acid aqueous solution under a treatment condition of a target voltage of 10 V or more, to form an anodic oxide film on a surface of the aluminum material, the method including, as pre-treatment of the anodic oxidation treatment, subjecting the aluminum material to anodic oxidation treatment in a treatment bath of a polybasic acid aqueous solution under a treatment condition of a voltage of 6 V or less until an electrical quantity reaches 0.05 C/cm2 or more, to form a pre-film on the surface of the aluminum material.