Search
Filters

09191 Fundamentals of Bristle Blasting Process for Removing Corrosive Layer

Product Number: 51300-09191-SG
ISBN: 09191 2009 CP
Author: Piyush Khullar and Robert J. Stango
Publication Date: 2009
$0.00
$20.00
$20.00
This technical paper introduces a newly developed surface preparation process termed bristle blasting, which utilizes a specially designed rotary power tool for simultaneously removing corrosion and generating an anchor profile. The process derives its name from sharp, hardened bristle tips which, upon striking the corroded surface, immediately retract, thereby creating a micro-indentation that both removes corrosion and simultaneously exposes fresh subsurface material. Consequently, the repeated collision/retraction of bristle tips with the corroded surface leads to a surface cleanliness and anchor profile that resembles surface prepared by grit blasting processes. Performance of the bristle blasting process is evaluated within the context of an application that involves cleaning/texturing severely corroded API 5L piping, which is commonly used for onshore/offshore petroleum transport applications. The results demonstrate that surface cleanliness and texture achieved via bristle blasting tools is on a par with grit blasting processes. That is, a nearwhite metal and white metal appearance of cleaned surfaces is routinely obtained, and is accompanied by an average peak-to-valley surface texture (Rz, microns) given by: 83 = Rz = 62. Finally, careful study indicates that bristle blasting tools can remove corrosion at a rate in excess of one square meter per hour throughout the duration of tool life.

KEY WORDS: Bristle Blast; Surface Cleaning; Surface Preparation; Removal of Corrosive Products; Corrosion Removal; Anchor Profile
This technical paper introduces a newly developed surface preparation process termed bristle blasting, which utilizes a specially designed rotary power tool for simultaneously removing corrosion and generating an anchor profile. The process derives its name from sharp, hardened bristle tips which, upon striking the corroded surface, immediately retract, thereby creating a micro-indentation that both removes corrosion and simultaneously exposes fresh subsurface material. Consequently, the repeated collision/retraction of bristle tips with the corroded surface leads to a surface cleanliness and anchor profile that resembles surface prepared by grit blasting processes. Performance of the bristle blasting process is evaluated within the context of an application that involves cleaning/texturing severely corroded API 5L piping, which is commonly used for onshore/offshore petroleum transport applications. The results demonstrate that surface cleanliness and texture achieved via bristle blasting tools is on a par with grit blasting processes. That is, a nearwhite metal and white metal appearance of cleaned surfaces is routinely obtained, and is accompanied by an average peak-to-valley surface texture (Rz, microns) given by: 83 = Rz = 62. Finally, careful study indicates that bristle blasting tools can remove corrosion at a rate in excess of one square meter per hour throughout the duration of tool life.

KEY WORDS: Bristle Blast; Surface Cleaning; Surface Preparation; Removal of Corrosive Products; Corrosion Removal; Anchor Profile
Product tags
Also Purchased
Picture for 09004 Bristle Blasting as a Method for Surface Preparation
Available for download

09004 Bristle Blasting as a Method for Surface Preparation

Product Number: 51300-09004-SG
ISBN: 09004 2009 CP
Author: Neil Wilds
Publication Date: 2009
$20.00
Picture for 10385 Surface Preparation of Ship-Construction Steel/(ABS-A) via Bristle Blasting Process
Available for download

10385 Surface Preparation of Ship-Construction Steel/(ABS-A) via Bristle Blasting Process

Product Number: 51300-10385-SG
ISBN: 10385 2010 CP
Author: Robert J. Stango, Ph.D., Raymond A. Fournelle, Ph.D., Jorge A. Martinez, and Piyush Khullar
Publication Date: 2010
$20.00
Picture for 01659 SURFACE PREPARATION STANDARDS
Available for download

01659 SURFACE PREPARATION STANDARDS

Product Number: 51300-01659-SG
ISBN: 01659 2001 CP
Author: L. D. "Lou" Vincent Ph.D.
$20.00