Rebuilding of Cylinder Rams
Repairing of heat exhange cover
Location
On site, offshore, Norway
Job and report done by
Assens Shipyard, DK
Wencon products used
Hi-Temp, Putty, Cleaner, appl. tools
Bubbles under
original ceramic coating will
cause oil leaks from seals
A hydraulic ram presented a significant challenge due to visible bubbles under its original ceramic coating. These bubbles indicated imminent failure, as they were likely to burst and cause oil leaks from the seals. One of the bubbles had already cracked, revealing a damage area of 50 x 80 mm and 2-3 mm deep. This posed a risk of severe operational issues if not addressed promptly.
The Solution
Step 1-2
It is a matter of time before the bubbles blow up, which will cause oil leaks from seals.
Photo shows one of the bubbles after cracking – here a damage of 50 x 80mm and 2-3
mm deep.
Step 3
Attacked areas grinded to clean steel/ceramic,
leaving the surface as rough as possible to get
the best adhesion possible.
Step 4
To apply Wencon Hi Temp and avoid material waste, start by masking all areas to be repaired with tape. Using a brush or spatula, apply Hi Temp until the original surface level is reached. If necessary, repeat the application process. Allow the Wencon Hi Temp to cure for 10-12 hours at a minimum temperature of 15˚C.
Step 5
Creating a grinding tool, using Wencon
putty, surface can be hand sanded to almost
100% original shape and size.
Step 6
Final result.
Original surface is now intact and ready for
many years of service.
Hydraulic ram restored
To repair, all areas to be treated were masked with tape to avoid material waste. Wencon Hi Temp was applied using a brush and spatula until the original surface level was restored. The application process was repeated as necessary, and the material was allowed to cure for 10-12 hours at a minimum temperature of 15°C.
A grinding tool was then created using Wencon putty, allowing the surface to be hand-sanded to nearly its original shape and size. The final result was an intact surface, restored to its original condition and ready for many more years of service.
