Introduction to the Bristle Blasting Process for Simultaneous Corrosion Removal/Anchor Profile

摘要

It has been shown that surface treatment performance of the bristle blasting process is dependent upon the overall time that is acquired by the tool during use. Consequently, use of the tool must be accompanied by a clear understanding of the need for periodic tool retirement, as warranted by the application. Based upon the results reported in this article, for example, both corrosion removal and an anchor profile can be sustained for 1 hr. (60 min.) duration when used for treating API 5L material systems. During this interval, an averaged cleaning rate of 1.1 m~2/hr. can be achieved along with a surface texture that (predictably) varies (Rz = 84 microns to Rz = 63 microns) over the duration of tool life. Consequently, the bristle blasting process is ideally suited for spot repair applications, or larger operations that may prohibit the use of traditional grit blasting processes.