Abstract: The method for manufacturing a heat exchanger plate includes a lid groove closing process to insert a lid plate into a lid groove formed at a periphery of a concave groove opening to a surface of a base member; and a primary joining process to perform friction stirring while relatively moving a primary joining rotary tool equipped with a stirring pin along a butting portion of a side wall of the lid groove and a side surface of the lid plate, and in the primary joining process, the rotating stirring pin is inserted into the butting portion, and the friction stirring is performed in a state of only the stirring pin being in contact with the base member and the lid plate.

Abstract: A porous aluminum electrode has a porous layer formed by sintering aluminum powder on the surface of an aluminum core. The porous aluminum electrode, when subjected to a formation to a voltage of 200V or more, is boiled and then subjected to a first forming process in which formation is performed in an aqueous solution of ammonium adipate at a temperature of 80° C. or below and a second forming process in which formation is performed in a boric acid aqueous solution. When heat depolarization is first carried out, washing with water is performed for five minutes or more before heat depolarization; therefore, the porous layer is not destroyed.

Abstract: A biochip substrate which is free from cross-contamination due to spot spreading or contact with spots adjacent to each other, and a biochip using the same. A biochip substrate on which multiple valleys for immobilizing biological substances are formed so as to prevent cross-contamination due to spot spreading or contact with spots adjacent to each other, and a biochip using the same are provided. Moreover, it is found out that a desired binding in a target molecule contained in a test sample occurs at a detectable level in a solution system even in the case where a valley have such a small capacity as 1 nL to 10 nL.

Abstract: A bumper reinforcement composed of a hollow shape material includes: a rear wall; an upper wall; a lower wall; a front wall; a partition wall located between the rear wall and the front wall and extending from the upper wall to the lower wall; an upper support wall and a lower support wall located between the upper wall and the lower wall and extending from the rear wall to the partition wall; and an intermediate support wall located between the upper wall and the lower wall and extending from the front wall to the partition wall. An intersection of the partition wall with the upper support wall is located above an intersection of the partition wall with the intermediate support wall, and an intersection of the partition wall with the lower support wall is located below the intersection of the partition wall with the intermediate support wall.

Abstract: There are provided a method of manufacturing an aluminum product and a method of manufacturing an aluminum brake caliper each using die casting, for improving flow and run of molten metal during casting and enhancing productivity and quality. In a method of manufacturing an aluminum product provided with opposing portions opposed to each other with a hollow portion interposed in between, and connecting portions connecting the opposing portions at two sides thereof, the method includes a die casting step of performing casting by pouring molten metal of an aluminum alloy from a gate for the molten metal formed in one of the opposing portions via the connecting portions and a bridge connecting the two opposing portions, and a bridge removing step of removing the bridge.

Abstract: A battery case provided with a safety valve (4) in which a breakage groove (45) is used, wherein in order to stabilize the operation pressure, a lid (2) of the battery case has formed thereon: a thin plate portion (30) obtained by thinning a plate part (3); and a first recessed part (40) comprising a curved part (44) in which the thin plate portion (30) is indented inward, with respect to the case, in a curved shape. The breakage groove (45) for the safety valve (4) is formed at the bottom part (440) of the curved part (44). A first connecting portion (46) and a second connecting portion (47) of the plate part (3), which connect to the curved part (44) on both sides flanking the curved part (44), are at positions protruding toward the outside of the case from the plate part (3).

Abstract: An aluminum alloy fin material for a heat exchanger having suitable strength before brazing enabling easy fin formation, having high strength after brazing, having a high thermal conductivity (electrical conductivity) after brazing, and having superior sag resistance, erosion resistance, self corrosion prevention, and sacrificial anode effect, a method of production of the same, and a method of production of a heat exchanger using the fin material are provided, that is, an aluminum alloy fin material having a chemical composition of Si: 0.7 to 1.4 wt %, Fe: 0.5 to 1.4 wt %, Mn: 0.7 to 1.4 wt %, and Zn: 0.5 to 2.5 wt %, Mg as an impurity limited to 0.

Abstract: A manufacturing method of an inexpensive aluminum alloy that allows fine crystallization of the Al—Fe—Si compound and primary Si by employing a convenient and efficient means. To a molten aluminum alloy including 8 to 20% by mass of Si; 0.5 to 4% by mass of Fe; and, as necessary, at least any one of Mn and Cr; at least any one of Ni, Cu, and Mg; P; and the balance being Al and impurities, AlB2, which is present as a solid phase in molten metal upon crystallization of the Al—Fe—Si compound, is added in such an amount that B is in a range of 0.01 to 0.5% by mass with respect to entire molten aluminum alloy. As the AlB2, an Al—B alloy which includes B as the AlB2 may be used.

Abstract: Provided are a surface-treated aluminum material having, on an aluminum material formed of aluminum or an aluminum alloy, a porous anodically oxidized film of a uniformly porous type exhibiting no visually recognizable crystal grain pattern after anodic oxidation treatment, and a novel zinc-doped aluminum alloy suitable for manufacture of the surface-treated aluminum material. The surface-treated aluminum material includes an aluminum alloy base material and an anodically oxidized film formed on a surface thereof, in which the aluminum alloy base material is formed of a zinc-doped aluminum alloy having an alloy composition containing 0.05 mass % to 1 mass % of a Zn component, 0.02 mass % or less of inevitable impurities, and the balance of aluminum.

Abstract: A battery case lid is formed by working a metal plate, and includes a substrate section and an explosion-proof valve formed in the substrate section. The explosion-proof valve has a reduced thickness section that is thinner than the substrate section, and the reduced thickness section is formed by extending the metal plate by applying pressure while the metal plate is kept unrestrained.

Abstract: A caliper comprises a hydraulic linking channel provided in a bridge section linking hydraulic cylinders, on an inner caliper section side, and hydraulic cylinders, on an outer caliper section side, to a cylinder-side hydraulic channel disposed on the back end of each respectively. A connecting channel forming section, which corresponds to each cylinder-side hydraulic channel and the hydraulic linking channel is provided, in advance, in a core used during casting of the inner caliper section, the outer caliper section, and the bridge section, and is formed by setting in a situation to be embedded at the same time as each caliper section and the bridge section are being integrally cast.

Abstract: Provided is a pellicle frame that can prevent generation of haze and reduces a surface glittering defect under irradiation with collected light, and a method of manufacturing the same. The pellicle frame is obtained by using an aluminum frame material having a structure satisfying predetermined conditions on the circle-equivalent diameters of a Mg2Si crystallized product, an AlCuMg crystallized product, an Al—Fe-based crystallized product (AlmFe or Al7Cu2Fe), and an Al2CuMg crystallized product and on the area ratios of those crystallized products each having a circle-equivalent diameter of 1 ?m or more, and in addition, subjecting the aluminum frame material to anodic oxidation processing using an alkaline electrolytic solution containing as an electrolyte a predetermined organic acid salt.

Abstract: Provided are a method of manufacturing a support frame for a pellicle, capable of forming a sufficiently blackened anodic oxide film through anodic oxidation treatment and providing a support frame for a pellicle industrially inexpensively with ease, a support frame for a pellicle obtained by the method, and a pellicle. Specifically, provided are a method of manufacturing a support frame for a pellicle to be used as a pellicle including an optical thin film, the method including: annealing an aluminum material formed of an Al—Zn—Mg based aluminum alloy; and subjecting the aluminum material to anodic oxidation treatment in an alkaline solution to form an anodic oxide film having a lightness index L* value of 40 or less, a support frame for a pellicle obtained by the method, and a pellicle including the support frame for a pellicle and an optical thin film.

Abstract: A caliper comprises a hydraulic linking channel provided in a bridge section linking hydraulic cylinders, on an inner caliper section side, and hydraulic cylinders, on an outer caliper section side, to a cylinder-side hydraulic channel disposed on the back end of each respectively. A connecting channel forming section, which corresponds to each cylinder-side hydraulic channel and the hydraulic linking channel is provided, in advance, in a core used during casting of the inner caliper section, the outer caliper section, and the bridge section, and is formed by setting in a situation to be embedded at the same time as each caliper section and the bridge section are being integrally cast.

Abstract: The present invention provides a pellicle frame that can prevent generation of haze and reduces a surface glittering defect under irradiation with collected light, and a method of manufacturing the pellicle frame. Specifically, provided are a pellicle frame, including: an aluminum frame material formed of aluminum or an aluminum alloy; and an anodic oxide film on a surface of the aluminum frame material, in which the anodic oxide film includes a film formed by using an alkaline anodic oxidation solution and a film formed by using an acid anodic oxidation solution, and a method of manufacturing the pellicle frame.

Abstract: The invention aims at providing a friction stir welding method which can achieve joining a butting portion to a deep location therein by reducing the load on the friction stirring device. The friction stir welding method for joining two metal members (1) using a primary joining rotary tool (F) with a stirring pin (F2) includes a primary joining process in which a rotating stirring pin (F2) is moved to the butting portion formed by butting the metal members (1) against each other and friction stir welding is carried out. In the primary joining process, only the stirring pin (F2) is brought into contact with the metal members (1).

Abstract: A gas pressure controlled casting mold is disclosed having a hot-top introducing a molten metal of aluminum or aluminum alloy, and a mold body which passes the molten metal of aluminum or aluminum alloy introduced from the hot-top through a molten metal passage portion for cooling and solidification and semi-continuously or continuously casting a billet of aluminum or aluminum alloy. A wall surface of the molten metal passage portion of the mold body is provided with a plurality of lubricating oil blow-out holes for blowing out a lubricating oil. A lubricating oil supply passage is communicatively connected to each lubricating oil blow-out hole and is independently formed at least in a range of a heat affected portion in the mold body. This allows the mold body to be reliably cooled regardless of the difference in the temperature and casting speed conditions and thus can achieve favorable continuous casting.