Refractory nozzle
US4309159A · kind A · utility
4Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 5, 1980 |
| Grant date | Jan 5, 1982 |
| Priority date | — |
| Expiry date | Jun 5, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2009/088
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An improved refractory nozzle for use with a tundish in the atomization of molten metal to produce metal particles for powder metallurgy applications. The nozzle is constructed from refractory material and has a metal sleeve surrounding the nozzle bore near the discharge end thereof but offset a distance from the bore. The metal sleeve minimizes cracking caused by the thermal gradient resulting from molten metal passing through the nozzle to heat the nozzle interior to a temperature higher than the nozzle exterior at the tip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.