Manufacture of copper wire rod
US4290823A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 25, 1979 |
| Grant date | Sep 22, 1981 |
| Priority date | — |
| Expiry date | Oct 25, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B2003/005
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A process for the continuous manufacture of copper wire rod presenting both the good ductility of oxygen-free copper and the annealing capacity of the tough pitch copper, in which liquid copper is prepared containing from about 0.006 to 0.0095% by weight of oxygen, the said liquid copper is cast via an open pouring spout in a continuous casting machine having an inclined straight molding cavity for producing a continuous copper bar containing 0.01 to 0.02% by weight of oxygen and which consists of a shell of solid copper and a core of liquid copper, the said bar on leaving the casting machine is cooled by repeated and direct contact with a cooling agent for complete solidification and the solidified bar is guided towards a horizontal rolling mill known "per se" along a curved path the maximum curvature of which is less than 0.25 m.sup.-1, and the said bar is rolled into wire rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.