Method of prestressing the working surfaces of pressure chambers or cylinders
US4354371A · kind A · utility
31Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 27, 1980 |
| Grant date | Oct 19, 1982 |
| Priority date | — |
| Expiry date | Oct 27, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D7/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of prestressing the working surface of pressure chambers or cylinders comprising the steps of first shot peening their working surfaces to form compressive residual stresses, and then applying fluid pressure at a predetermined magnitude to cause tensile stresses in the working surfaces. The magnitude of compressive residual stresses established on their outer working surfaces is made substantially equal to the tensile stress applied to these surfaces during the pressure phase of the process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.