| 摘要 |
PURPOSE:To provide a fusion-bonding machine capable of performing fusion- bonding under always stable conditions and performing bonding under the optimum conditions regardless of the dimensions of the calibers of piping materials to be connected. CONSTITUTION:Stop means (e.g. limit switches 2L, 3L and the control circuit 5 of the hydraulic control systems of cylinders 20, 30) for respectively prescribing the moving stop positions of a pair of clamps 2, 3 retreating after the completion of a heating process are provided and constituted so as to be capable of respectively altering the distances of the stop positions of the clamps 2, 3 with respect to the heater arranging position of the heating process. |
