Aluminum-based alloy bearing
US4452866A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1981 |
| Grant date | Jun 5, 1984 |
| Priority date | — |
| Expiry date | Sep 3, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12757
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A tin-containing aluminum alloy is usually pressure-welded to a backing steel plate and used as a bearing. This bearing, however, is defective in that aluminum crystal grains and tin precipitates are coarsened in the alloy structure and the high temperature hardness and fatigue-resistant strength of the bearing alloy are reduced. The present invention provides an aluminum alloy comprising 2.5 to 25% by weight of tin, 0.5 to 8% by weight of zinc and 1 to 7% by weight of at least one element selected from the group consisting of silicon, chromium, manganese, nickel, iron, zirconium, molybdenum, cobalt, tungsten, titanium, antimony, niobium, vanadium, cerium, barium and calcium, with the balance being substantially aluminum. In the aluminum alloy of the present invention 0.1 to less than 1% by weight of chromium may be incorporated of 1 to less than 1% by weight of chromium may the like. The alloy of the present invention is effectively used as a bearing for a crank shaft of an automobile or the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.