Apparatus and method for oscillating slide closure of casting vessel to prevent solidification of molten metal in closed outlet
US4759479A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 24, 1982 |
| Grant date | Jul 26, 1988 |
| Priority date | — |
| Expiry date | May 24, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D41/38
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
For a slide closure 10 attached to a pouring vessel 2 which has a movable slide part 14 disposed between a bottom plate 12 and a discharge part 16, there is, in addition to a cylinder piston unit 24 acting on the slide part, which unit is dominant by way of a servocontrol block 26 by regulating arrangement 32, a vibrator 36 which is controlled by an oscillator 34. The vibrator 36 is switched into the connection between the cylinder-piston unit 24 and the movable slide part 14, and is in a position to oscillatingly drive the latter both in its closing position as well as in other positions and, indeed, in the same direction as the cylinder piston unit. A position generator 44 starts the oscillator 34 forcibly in the closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.