Repair of Corroded Heat Exchange Cover
Repairing of heat exhange cover
Location
Iceland
Job and report done by
Framtak, Iceland
Wencon products used
Cream, Coating blue, Cleaner, Release
Agent, appl. tools
Corroded heat exchange cover
Bi-metallic corrosion often leads to leaking covers on heat exchangers, a well-known issue in the industry. The delivery time for a new cover is typically quite long. However, with Wencon repair solutions, the cover can be refurbished and back in action within 2 days.
In this specific case, severe corrosion around the sealing points caused the heat exchanger to leak, presenting a significant challenge.
The Solution
Step 1-2
The cover was severely corroded and required thorough preparation. To ensure optimal conditions for the application of Wencon material, the end cover was blasted and heated to remove any moisture.
Step 3
Wencon Rapid repair material was then carefully applied to the cover.
Step 4
To smoothen the layer of Wencon Rapid, epoxy was put under pressure using a thick plastic plate. The plastic plate was chosen to minimize adhesion, but a metal plate covered in Wencon Release Agent can also be used.
Step 5
Finally, to fill and smooth small pitting holes, a thin layer of Wencon Blue coating was applied to the plate and similarly put under pressure.
Step 6-7
The end cover was reinstalled, and the heat exchanger was reassembled and back in action.
Heat exhange cover restored
The severely corroded cover required thorough preparation to ensure optimal conditions for the application of Wencon material. The end cover was first blasted and heated to remove any moisture. Wencon Rapid repair material was then carefully applied to the cover.
Finally, to fill and smooth small pitting holes, a thin layer of Wencon Blue coating was applied to the plate and similarly put under pressure. The end cover was then reinstalled, and the heat exchanger was reassembled and back in action.
