| 摘要 |
PURPOSE:To prevent the environmental pollution, etc., by providing a closed space just before a die and by blowing the jet stream containing a lubricant on a wire drawing material as well, then by performing the wire drawing of a die and recovery of the lubricating material. CONSTITUTION:A closed space 1 is formed inside a T-shaped pipe 10 and a discharging aperture 9 is arranged as well by fitting an outer cylinder 11 into both sides of the T pipe 10. Moreover, a guide inner cylinder 14 is screwed freely advancibly and retreatably into the inner cylinder inserting hole 13 of the outer cylinder 11 and a jet stream passing through hole 5 is pierced at the center part of the outer cylinder 11. In case of wire drawing, a work material 2 is fed by inserting through a leading out hole 4 from a leading in hole 3 and simultaneously a circulation pump 23 is actuated. The jet stream containing a lubricant 7a is blown on the surface of the work material 2 at abrupt speed and drawn by a die B after forming a film. In this case, due to the lubricant 7a being not leaked to the external part by the negative pressure of the jet stream there is no environmental pollution and the recovery of the lubricant 7a is enabled as well.
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