Elongated finned backup rollers having multiple magnetized fins for guiding and stabilizing an endless, flexible, heat-conducting casting belt
US5728036A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1996 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | Jul 10, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/0677
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Elongated finned backup rollers have multiple magnetized fins for rolling contact with a moving endless, flexible, thin-gauge, heat-conducting, magnetically soft ferromagnetic casting belt for guiding and stabilizing the belt against thermal distortion while it moves along the mold cavity being heated at its front surface by heat from molten metal while being cooled at its reverse surface by flowing liquid coolant. Each finned backup roller includes an elongated, non-magnetic shaft rotatable around its axis and having multiple annular fins of magnetically soft ferromagnetic material fitted onto the shaft spaced along the shaft. The fins have circular perimeter rims for rolling contact with the reverse surface of a belt. Intervening collar shaped reach-out permanent magnets are mounted on the shaft between successive fins. The fins and reach-out collar magnets alternate in sequence along the length of the roller. The reach-out collar magnets are magnetized in a direction parallel with the axis of the roller. Thus, fins become magnetized by the magnets with their perimeters having alternate North and South magnetic polarities in sequence along the roller. In addition to attraction of…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.