| 摘要 |
PURPOSE:To produce a cobblestone by regenerating used waste plastic. CONSTITUTION:In a molding machine constituted by combining a plastic extrusion molding machine 1 and a plunger type injection cylinder 3, a mold is brought into contact with the nozzle 4 of the injection cylinder 3 to be filled with the regenerated plastic material injected from the nozzle 4 and, subsequently, the mold is moved to be opened in cooling water and a molded product is cooled in water to produce a cobblestone. |
