Abstract: A joining device includes a first roller that rotates an attached first workpiece in the conveying direction to convey the first workpiece, and a second roller that rotates the attached second workpiece in the conveying direction to join the second workpiece to the conveyed first workpiece by heat. The second roller includes a main body drum, a plurality of protruding portions provided at intervals in the rotational direction of the main body drum, and a plurality of suction portions that is provided to each of the protruding portions and attaches a second workpiece onto end surfaces of the protruding portions.

Abstract: A method for inspecting a metal separator includes a step of detecting deflection of the metal separator with a height detector, a step of displacing the metal separator or an imaging device in a height direction according to the deflection of the metal separator to keep a distance between the imaging device and an imaging portion of the metal separator constant, and a step of imaging a weld portion with the imaging device.

Abstract: In this fuel cell, a cathode-side porous film that covers a cathode electrode is interposed between the cathode electrode and an air supply layer, the cathode electrode constituting electrolyte film/electrode structures. In addition, breathing holes are formed in the cathode-side porous film, and the air flowing through air supply passages passes through the breathing holes and is supplied to the cathode electrode.

Abstract: A method for inspecting a metal separator includes a step of detecting deflection of the metal separator with a height detector, a step of displacing the metal separator or an imaging device in a height direction according to the deflection of the metal separator to keep a distance between the imaging device and an imaging portion of the metal separator constant, and a step of imaging a weld portion with the imaging device.

Abstract: A sheet body is gripped (bound) by grip conveyance units, and conveyed as the grip conveyance units are displaced in this state. At the same time as this conveyance, the sheet body is held by delivering units, and delivered by a predetermined amount by the delivering units. After that, the sheet body is cut in predetermined size and shape by cutting molds.

Abstract: In this fuel cell, a cathode-side porous film that covers a cathode electrode is interposed between the cathode electrode and an air supply layer, the cathode electrode constituting electrolyte film/electrode structures. In addition, breathing holes are formed in the cathode-side porous film, and the air flowing through air supply passages passes through the breathing holes and is supplied to the cathode electrode.

Abstract: A sheet body is gripped (bound) by grip conveyance units, and conveyed as the grip conveyance units are displaced in this state. At the same time as this conveyance, the sheet body is held by delivering units, and delivered by a predetermined amount by the delivering units. After that, the sheet body is cut in predetermined size and shape by cutting molds.

Abstract: A product cutting method performs a cutting step of forming a product cutting line in a sheet material, and forming tongue piece portions, which are adjacent to an outer periphery of a product together with being connected to the sheet material, and are capable of being displaced with respect to the sheet material in a thickness direction of the sheet material by forming auxiliary cutting lines continuous with the product cutting line in end members of the sheet material, and an extracting step of taking out the product from the end members by applying a vacuum suction to an extracting device.