摘要:
Provided is a metal porous body including a frame of a three-dimensional network structure, wherein the metal porous body has an outer appearance of a sheet shape, the frame is an alloy containing at least nickel and chromium, and is dissolved with iron in solid state, and the number of aluminum oxide powder adhered to the surface of the frame is 10 or less in 1 cm 2 of the apparent area of the metal porous body.
摘要:
A metal porous body is a metal porous body mainly composed of nickel and having a framework of a three-dimensional network structure, Ni(OH) 2 being present in a surface of the framework, when the metal porous body is subjected to at least 30 potential scans between a lower limit potential of -0.10 V and an upper limit potential of +0.65 V with respect to a hydrogen standard potential in not less than 10% by mass and not more than 35% by mass of a potassium hydroxide aqueous solution, at least oxygen being detected within a depth of 5 nm from the surface, and hydrogen being detected at least in the surface.
摘要:
A plating processing apparatus in which a plating object is immersed in a plating solution to form a plating layer on a surface of the plating object, the plating processing apparatus including a plating tank containing the plating solution, a power supply roller rotated while supplying electric power to the plating object, and conveying the plating object to be immersed into the plating solution contained in the plating tank and then moved to the outside of the plating solution, an anode case disposed inside the plating tank and held in electrical contact with the plating solution contained in the plating tank, a control panel controlling electric power supplied to the power supply roller and the anode case, a first busbar electrically connecting the power supply roller and the control panel, and a second busbar electrically connecting the anode case and the control panel, wherein the first busbar and the second busbar are each constituted by a plurality of busbar members each of which includes a copper-made base member and a titanium-made coating layer covering a surface of the base member, the first busbar and the second busbar include a first connection portion in which the busbar members are connected to each other and a second connection portion in which the busbar member is connected to the power supply roller, the anode case, or the control panel, and a portion of the busbar member other than the first connection portion and the second connection portion includes a gap between the base member and the coating layer.
摘要:
A method for producing a metal porous body includes the steps of: performing electrical conduction treatment on a surface of a skeleton of a sheet-like resin porous body having the skeleton with a three-dimensional network structure, to obtain a conductive resin porous body having a conductive layer; performing electroplating treatment on a surface of a skeleton of the conductive resin porous body to obtain a plated resin porous body having a metal plating layer; and performing treatment of removing at least the resin porous body from the plated resin porous body to obtain a metal porous body. In the electroplating treatment, power is supplied to a rotation shaft of a rotating electrode roller while a contact surface of a power supply brush composed of a sintered body is brought into sliding contact with the rotation shaft, with a lubricant, not containing conductive metal powder, interposed therebetween.
摘要:
A fuel cell according to the present disclosure includes a flat plate-shaped metal porous body having a framework of a three-dimensional network structure as a gas diffusion layer. The framework is made of metal or alloy. In the metal porous body, a ratio of an average pore diameter in a direction parallel to a gas flow direction to an average pore diameter in a direction perpendicular to the gas flow direction is greater than or equal to 1.4 and less than or equal to 2.5.
摘要:
Provided is a porous metal body having higher corrosion resistance than existing porous metal bodies composed of nickel-tin binary alloys and existing porous metal bodies composed of nickel-chromium binary alloys. The porous metal body contains at least nickel, tin, and chromium. An example of a method of producing such a porous metal body is a method including a conductive-coating-layer formation step of forming a conductive coating layer containing chromium on a surface of a porous base formed of a resin material; a metal-layer formation step of forming a nickel layer and a tin layer in any order on a surface of the conductive coating layer; a removal step of removing the porous base; and a diffusion step of, by a heat treatment, causing interdiffusion of metal atoms between the nickel layer and the tin layer and diffusing chromium contained in the conductive coating layer into the nickel layer and the tin layer.
摘要:
An aluminum electric wire 10 includes an annealing conductor 14 that is made up of elemental wires 12 made of an aluminum alloy containing 0.90-1.20 mass% Fe, 0.10-0.25 mass% Mg, 0.01-0.05 mass% Ti, 0.0005-0.0025 mass% B, and the balance being Al and has a tensile strength of 110 MPa or more, a breaking elongation of 15% or more, and an electric conductivity of 58%IACS or more, and an insulating material 16 covering the conductor 14. The wire 10 is produced by casting an aluminum alloy prepared by rapidly solidifying a molten aluminum alloy having the above composition, producing the wires 12 by subjecting the alloy to plasticity processing, producing the conductor 14 by bunching the wires 12, subjecting the wires 12 or the conductor 14 to annealing at 250°C or higher, and then covering the conductor 14 with the insulator 16.
摘要:
An aluminum electric wire 10 includes an annealed conductor 14 that is made up of elemental wires 12 made of an aluminum alloy containing 0.90-1.20 mass% Fe, 0.10-0.25 mass% Mg and, optionally, 0.01-0.05 mass% Ti or 0.01-0.05 mass% Ti and 0.0005-0.0025 mass% B, and the balance being Al, and an insulating material 16 covering the conductor 14. The wire 10 has a tensile strength of 110 MPa or more and a breaking elongation of 15% or more.