Why is Steel dark Gray after hydroblasting? What does the profile under corrosion look like? A short monograph. dark grey steel
Tag Archives: hydroblasting
WJTA-IMCA Conference Exhibition 2017-Oct New Orleans
WaterJetting Technology Association – Industrial Municipal Cleaning Association WJTA-IMCA Conference & Expo ERNEST N. MORIAL CONVENTION CENTER October 25-27, 2017 New Orleans Eight Reasons Leading Companies are Attending the WJTA-IMCA Conference & Expo Every year, the most forward-looking and progressive contractors, facility/asset owners, and suppliers of all sizes have high level participants at the WJTA-IMCA. …
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BHR Group 2016 23rd International Conference on Waterjetting
The WJTA-IMCA exhibition in New Orleans is over for 2016. I missed a good exhibition and round-table of practical talks and a chance to mingle with colleagues. However, I was preparing for the BHR Group Waterjetting 2016 conference in Seattle on Nov 15-18. This BHR group conference is typically held in Europe so it …
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WJTA-IMCA Nov 2-3, 2016 Exhibition and Demostrations, New Orleans, LA
The 2016 WJTA-IMCA is a two day filled meeting with practical talks and demos. The registration is $30 (one day) to $45 (2 day). The WJTA_IMCA features a panel discussion on the Future of the Industry which includes contractors, owners, and equipment manufacturers : Jim Ashmead, E.I. DuPont Rawlin Brown, StoneAge, Inc. Bradley Coble, PSC …
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Microscopic Analysis of Steel after Waterjet Cleaning
In the late 1990’s, I received a report from Materials Evaluation Laboratory. The report is copyrighted. The pump company had cleaned UHP WJ on panels supplied by a major oil company. Materials Evaluation Laboratory analyzed the substrate with microscopy and metallurgy compared to abrasive blasting. This was at the time that UHP WJ was scarce and …
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Quality of Water for Use in High Pressure Pumps
For 30 years, I have received questions about the quality of water that should be used for removal of coatings. How much dissolved material or minerals gets left on the surface? Just recently after an hour long webinar to 200 people, the questions was “What shoul the quality of the water be?” Among the first …
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EVALUATION OF 20,000 PSI WATER JETTING FOR SURFACE PREPARATION OF STEEL PRIOR TO COATING OR RECOATING
EVALUATION OF 20,000 PSI WATER JETTING FOR SURFACE PREPARATION OF STEEL PRIOR TO COATING OR RECOATING 1983 Dr. Lydia M. Frenzel, Dr. Robert DeAngelis, Dr. John B. Bates The original monograph which started the SSPC, NACE, and ISO to use waterjetting (hydroblasting, aquablasting) for coatings removal and surface preparation. Click on the link to get …
Surface Preparation- Why surfaces with more surface area look darker.
Surface Appearance with Surface Area. Back in the early 80’s, Dr. Lydia Frenzel and myself took a series of water-jet processed steel panels and examined them with a scanning electron microscope. We were hoping to receive confirmation of what our computer models told us; that is, water jetting at or above a threshold pressure produced …
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Lead Based Paint on Bridges- Cost Effective Alternatives- FHWA
I get questions about relative cost for various surface preparation methods and the pros and cons. I refer people to this study as they can plug in their own numbers. “COST EFFECTIVE ALTERNATIVE METHODS FOR STEEL BRIDGE PAINT SYSTEM MAINTENANCE” CONTRACT NO. DTFH61-97-C-00026 was published by the FHWA with Corrpro in September 2001. The final …
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Fixing Pipeline Problems; Performing Pipeline Rehabilitation Agenda 21- October 2014
Performing Pipeline Rehabilitation- Course Programme 21-22 October, 2014, Berlin Germany www.clarion.org DAY 1 Introduction Deterioration Mechanisms Causes of pipeline problems and consequences Rehabilitation Options What overall methods can be considered In-plant Rehabilitation Reconditioning pipe in a stationary facility Out of the Ditch Rehabilitation Case Studies of recoating a large diameter gas line in Canada and …