| 摘要 |
PURPOSE:To obtain the titled conductor comparable to a copper wire in strength by normal and stable drawing by using a drawing die which is forced to be lubricated when a rough wire of an Al-Mg-Si-Fe-Cu alloy subjected to soln. heat treatment and aging is drawn. CONSTITUTION:Rolling oil on the surface of a rough wire of an Al-Mg-Si-Fe-Cu alloy loss properties as lubricating oil by thermal degeneration while the wire is passed through soln. heat treatment and aging stages. When the rough wire passed through the stages is drawn with a conventional drawing die, drawing oil does not stick to the surface of the wire to cause surface seizing and deterioration in the surface quality. In order to eliminate the trouble, a drawing die which is forced to be lubricated is used in at least one initial drawing pass, and a conventional drawing die is used in the remaining pass schedule.
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