Method of making composite orifice for melting furnace
US5376329A · kind A · utility
36Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1992 |
| Grant date | Dec 27, 1994 |
| Priority date | — |
| Expiry date | Nov 16, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D3/1518
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of making a composite orifice having a tungsten core which is diffusion bonded to a molybdenum shell. Tungsten and molybdenum powders in contact with each other in a mold are isostatically pressed to form a pressed bonded composite part. The pressed, unsintered tungsten core portion of the part is then machined to the desired dimensions. The pressed composite part is then sintered to form a diffusion bonded composite orifice. The pressed and sintered molybdenum shell portion of the orifice may then be machined to the desired dimensions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.