A color coating layer is formed on the surface of a stainless steel plate by a chemical coloring method or an electrolytic coloring method. Thereafter, a colored stainless steel plate having the color coating layer is cold-rolled, the thickness of the color coating layer is adjusted to between 0.05 μm and 1.0 μm, and an entire plate thickness is adjusted to 0.5 mm or less. By the cold rolling a Vickers hardness Hv is between 250 and 550 to form a deformed band. As surface roughness, an arithmetic average roughness Ra is adjusted to between 0.05 μm and 5.0 μm. In this manner, the strength and rigidity of a thin colored stainless steel plate can be secured, and a color stainless steel plate and a colored stainless steel coil which do not easily cause galling and are excellent in press moldability can be obtained.

A color coating layer is formed on the surface of a stainless steel plate by a chemical coloring method or an electrolytic coloring method. Thereafter, a colored stainless steel plate having the color coating layer is cold-rolled, the thickness of the color coating layer is adjusted to between 0.05 μm and 1.0 μm, and an entire plate thickness is adjusted to 0.5 mm or less. By the cold rolling a Vickers hardness Hv is between 250 and 550 to form a deformed band. As surface roughness, an arithmetic average roughness Ra is adjusted to between 0.05 μm and 5.0 μm. In this manner, the strength and rigidity of a thin colored stainless steel plate can be secured, and a color stainless steel plate and a colored stainless steel coil which do not easily cause galling and are excellent in press moldability can be obtained.

An electrode holder and a method for producing an electrode for an aluminum electrolytic capacitor are provided that enable prevention of exfoliation of a porous layer during chemical formation even when the porous layer is formed on an aluminum electrode so as to have a thickness of 200 micrometers or greater. When an aluminum electrode 10 having at least one surface 11 on which a porous layer 17 having a thickness of 200 micrometers or greater is formed is subjected to chemical formation in a chemical formation solution, the aluminum electrode 10 is held by an electrode holder 50. The electrode holder 50 includes: an insulating first support plate 51 configured to overlap the one surface 11 of the aluminum electrode 10; an insulating second support plate 52 configured to overlap the other surface 12 of the aluminum electrode 10; and a connecting part 53 configured to connect the first support plate 51 and the second support plate 52 to each other. A portion of the first support plate 51 that overlaps the porous layer 17 while being in contact therewith is formed with a porous member 510.

Disclosed is a surface anti-corrosion treatment method for stainless steel. The method comprises the following steps: (1) performing chemical de-oiling and alkaline corrosion treatments on the surface of stainless steel by using a sodium hydroxide solution and a solution containing an alkaline corrosion active agent, and then washing with water; (2) performing, by using an oxidation solution, an oxidation treatment on the surface of the stainless steel treated in step (1), and then washing with water; (3) using the surface of the stainless steel treated in step (2) as a cathode and soaking same in an electrolyte for electrolysis, and then washing with water; and (4) placing the surface of the stainless steel treated in step (3) at a temperature of 50° C.-60° C. under a humidity of 60%-70%, and performing a hardening treatment. Also disclosed are the use of the treatment method in the treatment of a stainless steel part and a stainless steel part obtained after the treatment by means of the treatment method.

A hydrogen generation device capable of generating hydrogen using an inexpensive material is provided. The hydrogen generation device includes: a water flow path unit through which a solution flows in from outside and exits; a hydrogen generation unit made of a metal, the hydrogen generation unit generating hydrogen by a reaction with the flowing-in solution; and a hydrogen collection unit for collecting the generated hydrogen, wherein the hydrogen generation unit is disposed so that friction with the flowing-in solution peels off a surface film of the metal to expose an active surface of the metal, the metal being the hydrogen generation unit itself.

Provided is an alloy member including a substrate made of magnesium-lithium alloy with a sum of content of magnesium and content of lithium of 90 mass % or more and a coating film disposed on the substrate. The coating film contains fluorine and oxygen, with a fluorine content of more than 50 atom % and an oxygen content of less than 5 atom %.

A station for localized surface treatment of an industrial workpiece to be treated includes: at least one treatment chamber having a cell or two half-cells, each cell or half-cell delimiting a tight space between walls of the cell or half-cell and a respective portion or face of the industrial workpiece, the cell or each half-cell having a wall having an opening for covering a corresponding portion or face of the industrial workpiece, the opening of the cell or half-cell being delimited by a continuous sealing gasket, the cell or each half-cell including positioning means, the at least one treatment chamber having a supply and emptying circuit; and a plurality of storage vats each containing a treatment fluid, the supply and emptying circuit connecting each storage vat to the at least one treatment chamber so as to supply the at least one treatment chamber with respective treatment fluids.

The present invention relates to a plating hanger device having a shock-absorbing structure and, more specifically, to a plating hanger device having a shock-absorbing structure, the device allowing a hanger to be transferred at a uniform speed and reducing noise and shock, which are generated during transferring, so as to enable a uniform plated layer to be formed on a substrate. According to the plating hanger device having the shock-absorbing structure, of the present invention, an elastic spring is pressed by the load of the plating hanger device and a jig, and sequentially, the elastic spring presses a connection shaft and the connection shaft presses a transfer housing so as to improve adhesion between the transfer housing and a driving gear, thereby enabling transferring at uniform speed, and reducing the noise and shock generated during transferring by means of the elastic spring.

An object including a. a fiber reinforced plastic and b. a ceramic material, wherein the ceramic material is prepared by plasma electrolytic oxidation of aluminium. A process for the preparation of the object, including the steps of a. providing aluminium, a fiber reinforced plastic and a resin, or providing aluminium and a precursor of a fiber reinforced plastic comprising fibers and a resin, b. treating, at least partially, the aluminium with plasma electrolytic oxidation to provide a ceramic material, c. attaching the ceramic material to the fiber reinforced plastic with the resin, or attaching the ceramic material to the fibers with the resin, d. curing the resin to provide the object including the fiber reinforced plastic and the ceramic material at least partly bound to the fiber reinforced plastic.

An object including a. a fiber reinforced plastic and b. a ceramic material, wherein the ceramic material is prepared by plasma electrolytic oxidation of aluminium. A process for the preparation of the object, including the steps of a. providing aluminium, a fiber reinforced plastic and a resin, or providing aluminium and a precursor of a fiber reinforced plastic comprising fibers and a resin, b. treating, at least partially, the aluminium with plasma electrolytic oxidation to provide a ceramic material, c. attaching the ceramic material to the fiber reinforced plastic with the resin, or attaching the ceramic material to the fibers with the resin, d. curing the resin to provide the object including the fiber reinforced plastic and the ceramic material at least partly bound to the fiber reinforced plastic.