Method of manufacturing a casting nozzle brick
US4564493A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 20, 1984 |
| Grant date | Jan 14, 1986 |
| Priority date | — |
| Expiry date | Apr 20, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28B1/24
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A composition of flake graphite, binder clay and a refractory material is extruded from an auger machine into a mold to form a cylindrical graphitic casting nozzle brick. The mold includes a coaxial core terminating short of an extrusion die of the auger machine, so that the graphitic casting nozzle brick as extruded has a longitudinal bore with one end closed, with transverse holes being subsequently defined through the nozzle brick across the bore adjacent to the closed end. As an alternative, a coaxial core may be connected to an extrusion screw of the auger machine to define an axial through bore in the casting nozzle brick as the latter is extruded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.