Method and apparatus for heating a metallic elongated product
US5008514A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 29, 1989 |
| Grant date | Apr 16, 1991 |
| Priority date | — |
| Expiry date | Dec 29, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Induction heating is used to heat a moving strip (4) of non-ferrous material by causing it to form a short-circuited loop acting as the secondary winding of a transformer (1), the loop passing over pulleys (6, 9, 5 or 16). In one arrangement, one of the pulleys (16) has a double groove and the strip (4) passes over one groove (18), around another of the pulleys (19) and back to the other groove (20) of the double grooved pulley (16). This enables the strip to enter or leave the inside of the loop without colliding with the other side of the loop. In an alternative arrangement, the strip enters or leaves the inside of the loop at an angle to the plane of the loop and is prevented from contacting the other side of the loop by an insulating spacer (7).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.