Title: Method for treating metal articles for rust corrosion protection and article produced thereby

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.

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Inventors: Van Kuiken, Jr., Lewis L. (Grand Rapids, MI, US)

Application Number: 017416
Filing Date: 1979-03-05
Publication_date: 1980-12-16
Assignee: Progressive Blasting Systems (Grand Rapids, MI)
Primary Class(es): 428/409 428/432, 428/457
Other Classes:
US Patent Ref:

3922433	Nov, 1975	Patterson et al.	428/432.
4039997	Aug, 1977	Kuang et al.	428/432.

Other Refs:
Primary Examiner: Herbert, Jr., Thomas J.
Assistant Examiner:
Attorney: Price, Henevald, Huizenga & Cooper