Method and apparatus for continuous casting of metal
US5437326A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1993 |
| Grant date | Aug 1, 1995 |
| Priority date | — |
| Expiry date | Jun 28, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/0668
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Electrostatic application of a dusting of dry, electrostatically adherable, thermally insulative powder particles over a workface of a continuous metal-casting machine in which the mold surface or surfaces which provide the workface or workfaces revolve in a generally oval course. A dry dusting of protective powdery refractory material is applied to the workface after being entrained in an air stream and electrostatically charged by suitable electrostatic apparatus. The workface to be dusted is electrically grounded for attracting the charged powder particles for adhering them to the workface. The resultant coating formed by the dusting so deposited is remarkably uniform over a substantial area of the workface, a phenomenon explainable by mutual electrostatic repulsion of the dry powder particles being deposited. Continuously re-applied dusting over the workface during a continuous cast provides an immediately useful repair or replacement of dusting powder lost from the coating on the workface of a revolving mold surface during casting. The dusting may be removed at will by means of an air knife.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.