Permanent-magnetic hydrodynamic methods and apparatus for stabilizing a casting belt in a continuous metal-casting machine
US5967223A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1997 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Jun 30, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/0677
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Permanent-magnetic hydrodynamic methods and apparatus stabilize a moving, flexible, thin-gauge, heat-conducting, magnetically soft ferromagnetic casting belt against thermal distortion while moving along a mold cavity being heated at its front surface by heat coming from molten metal being cast while being cooled at its reverse surface by flowing pumped liquid coolant. Hydro-magnetic devices are arranged in an array wherein flows of pumped coolant pass through fixedly throttling passageways feeding pressure pockets facing the belt's reverse surface. These pockets are shown rimmed by magnetic pole faces. Coolant issues from the pressure pockets as fast-moving films radiating therefrom and travelling in gaps between the belt's reverse surface and the pole faces. These films cool the belt and apply hydrodynamic forces levitating the belt spaced from the pole faces while the belt is stabilized in even condition by powerful reach-out magnetic attraction forces reaching out from these pole faces and extending across the gaps to the moving belt. Pumped liquid coolant is twice throttled: once in feeding into the pressure pockets and once again in flowing out from the pockets escaping over …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.