| 摘要 |
PURPOSE: A tube mold regenerating method is provided to remove the need for overlay on the outer peripheral part of a tube mold by excluding pressure molding of top and bottom O-ring parts. CONSTITUTION: A tube mold regenerating method comprises the steps of: separating a plated layer from an abraded tube mold(100), grinding the tube mold, inserting a mandrel(200) into the tube mold, pressing the tube mold with a forming roll comprising a hydraulic cylinder(400) to remove a worn part from the tube mold, cutting out the parts stretched compared to the designed length and outer diameter of the tube mold, grinding the inner peripheral surface of the tube mold, forming a plated layer on the inner peripheral surface of the bottom or top of the tube mold to overlay a bottom or top O-ring part(120), and grinding the outer peripheral surface of the tube mold.
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