Method for treating metal articles for rust corrosion protection and article produced thereby
US4239804A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 5, 1979 |
| Grant date | Dec 16, 1980 |
| Priority date | — |
| Expiry date | Mar 5, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for treating an article having rust corrosion characteristics in which the article is dry-blasted by the propulsion of glass beads to compressibly peen the surfaces of the articles and thereafter preferably applying a protective coating to the peened surface. The glass beads are preferably blasted against such surfaces by pneumatic propulsion and are of a mesh size falling within the range of 70-140 mesh. Also, preferably the intensity of the glass beads striking the surface of the article is controlled so than an Almen test strip "N" subjected to the same blasting procedure shall show an Almen gauge reading of 0.005-0.007 inches. This invention encompasses an article treated specifically for the purpose of corrosion protection employing the above method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.