| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly efficient method for manufacturing a solid wire for welding having no copper plating, which method can draw a raw steel wire at a high speed by means of a roller die to a wire having a diameter of a product or having a diameter nearly equal to the diameter of the product, and also can continuously carry out all of the processes including the wire drawing process, a cleaning process, a lubricant applying process, etc. in the same production line. SOLUTION: The method for manufacturing the solid wire 110 for welding having no copper plating can draw all of the blanks including the raw steel wire 100, a primary drawn wire (B), and a secondary drawn wire (C) by means of roller dies 201 to 206 and 401 to 405 to the diameter nearly equal to that of the product wire. In the process, one or two kinds of soap selected from sodium stearate and potassium stearate are used as dry solid lubricant for drawing. After removing the lubricant from the surface of the drawn wire 107 by a cleaning means 108, a process for applying the lubricant, which is used to feed the solid wire for welding, on the surface of the drawn wire 107 by means of a lubricant applying means 109 is carried out in the same process as the process to the secondary drawn wire (C). COPYRIGHT: (C)2005,JPO&NCIPI
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