Abstract: An injection molding apparatus has a mold clamping device that includes a traction platen disposed below a pressure-receiving platen, a movable platen disposed above the pressure-receiving platen and configured to be moved up and down by a mold opening and closing mechanism, and tie bars extending downward from the movable platen and penetrating the pressure-receiving platen and the traction platen. The mold clamping device is configured to clamp molds disposed between the pressure-receiving platen and the movable platen. Each tie bar has a tooth portion at its lower end that engages with a tooth portion of a half nut connected to an underside of the traction plate. An injection device arranged on the movable platen includes a heating cylinder having a screw for feeding resin material through a nozzle to an upper one of the molds, and a purging cover encloses a space between the lower end portion of the heating cylinder and the movable platen.

Abstract: A mold clamping device (20) includes a traction platen (29) disposed below a pressure-receiving platen (22), a movable platen (28) disposed above the pressure-receiving platen (22) and configured to be moved up and down by a mold opening and closing mechanism (27), and tie bars (31) extending downward from the movable platen (28) and penetrating the pressure-receiving platen (22) and the traction platen (29). The mold clamping device (20) is configured to clamp molds (12) disposed between the pressure-receiving platen (22) and the movable platen (28). A saw tooth portion (36) is formed at a lower end of each of the tie bars (31), and a half nut (26) that engages with the saw tooth portion (36) is provided under the traction platen (29).

Abstract: In a method of plating aluminum based articles, an iron-based composite plating bath formed by admixing a nano-sized, particle-deposited carbon material into an iron plating bath at a ratio of 1.0 g per liter is provided. Using the iron-based composite plating bath, an iron-based composite plating layer containing the nano-sized, particle-deposited carbon material is plated on an aluminum-based base material.

Abstract: A technique for using an iron plating for coating an aluminum product that results in adequate durability. An aluminum piston (10) used as a plated aluminum product is covered by an iron-based composite plating layer (11). The iron-based composite plating layer (11) contains a carbon nanomaterial, which is applied to the aluminum-based base material using a iron-based composite plating bath formed by mixing a carbon nanomaterial into an iron plating bath.