A method of manufacturing a composite member including an aluminum member and a resin member bonded to each other, the method including: performing blasting on a surface of the aluminum member; modifying the surface of the aluminum member into aluminum hydroxide, the modifying including causing the surface of the aluminum member having undergone blasting to react with water by using at least one of heat and plasma; and directly bonding the resin member to the surface of the aluminum member modified to the aluminum hydroxide.

A method of manufacturing a composite member including an aluminum member and a resin member bonded to each other, the method including: performing blasting on a surface of the aluminum member; modifying the surface of the aluminum member into aluminum hydroxide, the modifying including causing the surface of the aluminum member having undergone blasting to react with water by using at least one of heat and plasma; and directly bonding the resin member to the surface of the aluminum member modified to the aluminum hydroxide.

A method for purifying powdered silicon carbide is in the form of a starting material to form a silicon carbide having a purity of at least 99.9%. This method has the following method steps: providing a starting material having a grain size of less than 100 μm and a silicon carbide content with at least 98% purity; and heating the starting material in a vacuum or oxygen-free atmosphere to a temperature above 1700° C. over a period of at least 8 minutes.

A method for manufacturing a plastic substrate having excellent thickness uniformity, and a plastic substrate having excellent thickness uniformity manufactured thereby.

A cold and hot compress pack includes a first sheet (110), a second sheet (120), a third sheet (130), a first weld seam (210), a second weld seam (220), a gas port (310) and at least two liquid ports (320). The first sheet (110), the second sheet (120) and the third sheet (130) are sequentially stacked one above another. The first weld seam (210) joins the first sheet (110), the second sheet (120) and the third sheet (130) at a same planimetric position. The second weld seam (220) surrounds the first sheet (110), the second sheet (120) and the third sheet (130) and joins them together at a same planimetric position. The second weld seam (220) is joined to one end of the first weld seam (210), thereby forming a first cavity (141) between the first sheet (110) and the second sheet (120) and a second cavity (142) between the second sheet (120) and the third sheet (130). The gas port (310) is arranged between any two of the liquid ports (320) so as to be spaced apart from both. The at least two liquid ports (320) are in communication with the second cavity (142), and the gas port (310) is in communication with the first cavity (141). An end of the first weld seam (210) joined to the second weld seam (220) extends between the gas port (310) and any one of the liquid ports (320) while being spaced apart from both. Also disclosed are a corresponding manufacturing method and a cold and hot compress circulation system.

A cold and hot compress pack includes a first sheet (110), a second sheet (120), a third sheet (130), a first weld seam (210), a second weld seam (220), a gas port (310) and at least two liquid ports (320). The first sheet (110), the second sheet (120) and the third sheet (130) are sequentially stacked one above another. The first weld seam (210) joins the first sheet (110), the second sheet (120) and the third sheet (130) at a same planimetric position. The second weld seam (220) surrounds the first sheet (110), the second sheet (120) and the third sheet (130) and joins them together at a same planimetric position. The second weld seam (220) is joined to one end of the first weld seam (210), thereby forming a first cavity (141) between the first sheet (110) and the second sheet (120) and a second cavity (142) between the second sheet (120) and the third sheet (130). The gas port (310) is arranged between any two of the liquid ports (320) so as to be spaced apart from both. The at least two liquid ports (320) are in communication with the second cavity (142), and the gas port (310) is in communication with the first cavity (141). An end of the first weld seam (210) joined to the second weld seam (220) extends between the gas port (310) and any one of the liquid ports (320) while being spaced apart from both. Also disclosed are a corresponding manufacturing method and a cold and hot compress circulation system.

A metal member has a region in which a dendritic layer is formed on a surface. The region has an arithmetic average roughness Ra of 20.0 μm or less.

A tool for installing a liquid shim material into a clearance formed between an assembly first and second component includes a body having a first end and a second end. The first end includes a planar surface and the second end includes a first surface and a second surface arranged at an angle to the first end and to one another. At least one hole is formed in the body. The at least one hole extends from the first end to the second end and is configured to provide a passageway through the body. The tool is arranged adjacent the assembled first and second component such that the passageway formed by the at least one hole is arranged in fluid communication with the clearance.

A method for molding a composite pressure vessel liner to secure a boss to the liner is described. The method comprises providing a moldable liner having an end section with a neck and a port. A boss is positioned around the neck of the liner and the liner is heated and pressure is applied to mold the liner to form to the shape of the boss. The angle of the molded liner secures the boss in place around the liner and it is able to withstand high pressures. A tool for molding the liner and a method for using the tool is also described. The tool comprises a tool body and a pipe having external threads. The tool body abuts the liner and the boss. Winding the pipe exerts pressure on the liner, which when heated, forces the liner to mold to the shape of the boss.

A method for molding a composite pressure vessel liner to secure a boss to the liner is described. The method comprises providing a moldable liner having an end section with a neck and a port. A boss is positioned around the neck of the liner and the liner is heated and pressure is applied to mold the liner to form to the shape of the boss. The angle of the molded liner secures the boss in place around the liner and it is able to withstand high pressures. A tool for molding the liner and a method for using the tool is also described. The tool comprises a tool body and a pipe having external threads. The tool body abuts the liner and the boss. Winding the pipe exerts pressure on the liner, which when heated, forces the liner to mold to the shape of the boss.