Fine dispersion aluminum base bearing
US4069369A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 1973 |
| Grant date | Jan 17, 1978 |
| Priority date | — |
| Expiry date | May 4, 1993 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1209
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A mixture of metals composed predominantly of aluminum and the balance bearing phase materials are heated to a molten state, ejected through an orifice and atomized by impinging a stream of cold water against the molten metal to effect a rapid drop in temperature as well as solidifcation. A layer of the resulting pre-alloyed particles are roll compacted simultaneously with a sacrificial surface layer and a bottom bonding layer, both being composed of aluminum base particulate materials. The bottom layer is devoid of bearing phase materials. The tri-layer strip is sintered, roll clad onto a backing member and post-annealed, blanked and formed into a bearing which is bored to remove the sacrificial layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.