Process and apparatus for the continuous casting of metal
US4276921A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1979 |
| Grant date | Jul 7, 1981 |
| Priority date | — |
| Expiry date | Apr 4, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/185
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process and apparatus for the control of a continuous process for casting metal. The apparatus includes a mold cavity (8) formed by upper and lower movable belts (2 and 3, respectively) and side dams (6 and 7) and including an inlet opening (9). Molten metal (11) is flowed to the inlet opening from a source (14) by conduit (12) connecting with an outlet (13). An opto-electronic device (17, 51) provides a signal which is a function of the level of the molten metal at a zone (FIG. 4) within the mold cavity and a circuit (40) responsive to the signal controls the position of a plug (15) relative to the outlet to control the flow of molten metal. The opto-electronic device includes a photosensitive element (23, 57) whose sensitivity lies essentially to radiation within the visible spectrum and only weakly responsive to infra-red radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.