| 摘要 |
PURPOSE:To separate a molding from a molding flask without turning over the molding flask of a lost foam pattern casting device. CONSTITUTION:A hollow part 12 is arranged in the inner part of a side wall 11 in the molding flask 10, and an opening part 12 is opened in the inner surface of the side wall 11 and covered with a gauze 15. Vinyl sheets 16, 18 are arranged on the upper and the lower surfaces of a molding sand 17, and by sucking the hollow part 12, gas in the molding sand 17 is sucked. By this method, the molding flask 10, molding sand 17, lost foam pattern groups 20A-20D and the vinyl sheets are integrated. |
