| 摘要 |
<p>PURPOSE:To constitute the titled method so that a matter that a cut off part hurts the skin does not happen, by making use of a die electrode whose pressing part forms a specific shape. CONSTITUTION:The titled method makes use of a die electrode 1, consisting of an intruded protrusion in a crest shape formed on the tip of a pressing thickness of 3-6mm. and a pressing surface 1C which moved backward by 0.2-0.6mm. from the tip of the protrusion leading to a steep slope of the protrusion and having a constant or gradually reducing depth, and an anvil electrode 2 having a receiving surface 2a in a plain state. Sheets 3, 4 to be joined are placed in a piled up state between the die electrode 1 and anvil electrode 2, welding takes place on the sheets 3, 4 by applying high-frequency voltage between the electrodes 1, 2 while the die electrode 1 is being placed between both the electrodes 1, 2 and pressed by intruding the protrusion of the die electrode 1 into the sheets 3, 4 to be joined, the application of the voltage is suspended when the pressing surface 1C of the die electrode 1 has begun to press the sheets 3, 4 and the protrusion of the die electrode 1 is kept intruded until a distance between the tip of the same and the receiving surface 2a of the anvil electrode 2 becomes less than 0.05mm.. With this construction, a matter that the skin is hurt by a cut off part does not happen.</p> |
