| 摘要 |
The present invention is a process for drawing and forming a bright wire of a predetermined diameter and cross-section, from stock of a greater diameter. It includes the steps of (a) continuously feeding said stock from a supply spool through the process; (b) mechanically removing scale from said stock; (c) applying a coating of lubricant carrier to the descaled stock; (d) applying drying air to the stock with the lubricant carrier thereon; (e) applying a lubricant to the carrier-coated stock; (f) drawing the lubricated stock through one or more pressure dies to decrease the diameter of the stock down to the desired predetermined diameter; (g) buffing the drawn stock with a plurality of buffing wheels, said buffing wheels being applied to the drawn stock at a plurality of angles to the direction of travel of the stock to produce bright wire; and, (h) coiling the resulting bright wire into coils for subsequent use. The process is continuous and the speed of the stock is maintained by conventional drive mechanisms to feed into the process and to coil off the process at predetermined speeds. In one embodiment, mechanical removal of scale includes the following steps: (i) bending the stock in at least three different directions over small enough arcs to cause peeling of scale; (ii) abrading of the stock to remove any remaining scale; and, (iii) rinsing the stock to remove any dust resulting from descaling. The present invention also includes the apparatus for the process.
|
