Project Name:
Scrubber Inlet 360deg Repairment (Starboard & portside) for M/V MOSCOW MAERSK
Project Start Time:
2024-08-19 15:53
Decoration style:
othere
Project description:
According to the requirements of the owner, our service team Scrubber Inlet 360deg Repairment (Starboard & portside) of the "MOSCOW MAERSK" on Aug. 11, 2024, at ShangHai Port .
Progress:
Scrubber repair Background
Background:
There are cracks and corrosion of inlet duct of marine scrubbers.（Starboard and portside）
We found a lot of black clay covering the inlet and flow divider.
The worker used a shovel and polish machine to clean up dirt
After cleaning , we removed the black clay of the inlet and found there’s corrosion all over the circle , which was consistent with the result of corrosion from the appearance:
Corrosion all over the circle, large cracks can be observed on both sides
Thickness measurement:
After cleaning and lapping start thickness measurement , the left and right sides were found serious corrosion ( Remaining thickness:3mm~4mm), but the top and bottom were mild corrosion(Remaining thickness >4mm).
Progress:
Welding the plates
Add fix plate above the crack so that crack is in the middle of the plate and plate is aligned with the crack direction:
Spare parts:
Double plate Alloy 31(EN 1.4562) 6 pcs
Welding material ERNICRMO-13 2kg
Since the corroded seam is angled, this welding ensures that the seam is completely covered.
Each plate has welds at both ends, the weld fuses with the inlet's shell, this ensures that after a certain plate is corroded and leaked, washing water will not enter other plate areas.
Progress:
Back check no welding penetration & Grinding smooth
Back check no welding penetration.
During the welding process, it is necessary to ensure that the interlayer temperature of the weld is below 80℃.
Grinding smooth
Progress:
PT checking after welding.
At the same time, do a good PT check to prevent missing any areas of welding.
Check all welds to avoid welding crack.
Service Hotline
Mailbox:leo@seawave-engineering.com(Domestic)
Add:Building 3, No. 3238 Huhang Highway, FengXian District,ShangHai ,China