Abstract: Thermoplastic synthetic resin flowing through both gates 173, 173 into lug part flanges 16, 16 collides with a confronting wall 161, converts direction of flow by 90°, changing velocity of flow, and thus fills the lug part flanges 16, 16 and flanges 15,15 on the long side. After this, as thermoplastic synthetic resin flows into thin outer peripheral walls 131, 132 and partition walls 133 at an optimum velocity of flow, thermoplastic synthetic resin flows smoothly and it is possible to form a smooth molded article. The lug part flanges 16,16 and the flanges 15, 15 on the long side serve as runners, so that thermoplastic synthetic resin flows smoothly into the thin outer peripheral walls 131,132 and partition wall 133.

Abstract: This method for cleaning wires enables effective descaling and removal of smuts from wires, prevents yellowing after cleaning, and significantly reduces the amount of water discharged as a result of cleaning, said method including, in the stated order: (A) pickling a wire; (B) cleaning the wire with acidic pressurized water, the concentration of which is adjusted with water and collected pickle solution which has adhered to and been recovered by the wire after use in Step (A); and (C) cleaning the wire with water.