| 摘要 |
<p>The invention describes a continuous method for producing wires from copper or from a copper alloy, wherein the copper or copper alloy is in the form of a cast billet (1) and is drawn at a temperature above 500°C into one or more finished wires with the aid of an extruder (2), in which a female die (4) and corresponding drawing dies are located, characterized by the following steps, a) protecting the hot wires (5) emerging from the female die (4) in a stretching zone (I) from oxidation by means of a shielding gas, b) cooling the wires in a cooling zone (II) in a temperature-controlled water bath (6) at a temperature greater than 60°C, c) measuring the cross-sectional dimensions of the wires after they leave the water bath and exerting a controlled tensile force on the wires, so that the deviations of the cross-sectional dimensions of the wires from a desired cross section are minimized by stretching the wires in the stretching zone (I), and d) placing the wires into a divided drawing die (14) without prior swaging, closing the drawing die and drawing the wires to the finished dimensions continuously until the cast billet is used up.</p> |
