Heat-resistant spring made of fiber-reinforced metallic composite material
US4544610A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1982 |
| Grant date | Oct 1, 1985 |
| Priority date | — |
| Expiry date | Mar 25, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12486
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A spring useful as various machine parts or elements for various machines and apparatuses, which is made of a fiber-reinforced metallic composite material comprising a matrix metal (e.g. a metal having a melting point of not higher than 1,700.degree. C.) and a reinforcement of an inorganic fiber having high modulus of elasticity and high strength selected from a ceramic fiber and a metallic fiber, particularly an alumina or alumina-silica fiber containing alumina of 100 to 72% by weight, preferably 98 to 75% by weight, and silica of 0 to 28% by weight, preferably 2 to 25% by weight, and having substantially no .alpha.-alumina reflection by X-ray diffraction. The spring of the present invention is light in weight and has far greater heat resistance and mechanical properties in comparison with the conventional metallic or non-metallic springs, and hence is particularly valuable from the standpoint of saving energy and saving resources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.