Continuous wire drawing process with mechanical descaling and post-die treatment and apparatus
US5201206A · kind A · utility
Inventor
Key dates
| Filing date | Jul 28, 1992 |
| Grant date | Apr 13, 1993 |
| Priority date | — |
| Expiry date | Jul 28, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21C9/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
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 s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.