Tuyere for the simultaneous and separate introduction of at least one gas and one powder material
US4385753A · kind A · utility
5Cited by
8References
6Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 2, 1981 |
| Grant date | May 31, 1983 |
| Priority date | — |
| Expiry date | Mar 2, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Tuyere for the processing of metals in the liquid, solid or pasty state, and capable of introducing simultaneously and separately a gas and a powdered material. The tuyere comprises at least two well-centered concentric tubes, the gas being introduced into a non-external tube, and the powdered and compressed material being introduced into another tube, which is lubricated on its inner wall by a film of a lubricating substance introduced through a slot formed therein. The outer tube is traversed by an agent protecting the tuyere against its hot wear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.