| 摘要 |
The invention relates to a method for metallically connecting the faces or cross-sectional surfaces of rods (1, 2), or optionally profiled bars, e.g. rails, which have a great longitudinal extension, by means of friction welding. In order to obtain a high-quality hot pressure weld across the entire surface, the ends of the rods are dressed perpendicular to the axes thereof and the rods (1, 2) are straightened in alignment with the axes, whereupon the dressed cross- sectional surfaces (11, 21) thereof are placed one against another and are impinged upon by pressure, and the two rod ends (12, 22) are moved in an oscillating manner in an opposite direction relative to each other, friction heat being generated at the contact surfaces. The rod ends (12, 22) are aligned in an axial direction, the pressure (P1, P 2) by which the cross-sectional surfaces (11, 21) are impinged upon is increased, and the entire surfaces thereof are connected to each other when the criteria for a metallic connection are met.
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