Integrated non-contact molten metal level sensor and controller
US5339885A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 1993 |
| Grant date | Aug 23, 1994 |
| Priority date | — |
| Expiry date | May 7, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D2/003
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A metal casting control device is provided for use in conjunction with a semi-continuous metal casting system. The control device is an integral module containing a metal surface elevation sensing device, a valve actuator for positioning a metal distribution control valve, and electronic circuits associated with these mechanical components. The control device module is adapted to be connected to an overhead metal distribution launder by a single quick-coupling for convenient and simple removal and replacement. Calibration of the control device is performed after installation by mounting a calibration target on the metal casting system and vertically adjusting the metal surface elevation sensing device until an integral calibration indicator positioned on the control device indicates that the proper vertical position has been attained. The metal surface elevation sensing device is formed by a manually-adjustable sensor carriage and a sensor support which is mounted for automatic vertical movement relative to the sensor carriage. An inductive proximity sensor is supported over a metal casting station by the sensor support. The vertical position of the sensor support is controlled to …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.