Project Name:
EXHAUEST MANIFOLD CRACK REPAIR FOR M/V MAERSK SANA
Project Start Time:
2025-03-04 15:53
Decoration style:
othere
Project description:
Our personnel dispatched engineers to investigate the ship, and observed cracks in the host platform bracket ,this repair job carry out during vessel docking at xinya shipyard
Progress:
A, Suports of plateform crack repair
Incident Description:
1. Our personnel dispatched engineers to investigate the ship, and observed cracks in the host platform bracket
2. For exhaust manifold at one years ago, there was a welding repair once time , but has been repeatedly cracked again. We welding collar plate as owner request
3. Scaveng box mainflod have two location crack and welding plate
4. The suport in the boiler was missing and crack two location, pipe carck two location and welded
5. Main engine have broken bolts and removed
6. AE T/C have broken bolts and removed
Engineer was checked and goguing /granding /welding with G507 Elc rod / aft 24hours PT test that was all good condition
Each location crack quantity as below:
1>2A : 2 crack 2> 5A:2 crack 3> 9A:2 crack 4>13A：2 crack
Additional location :
1>1A-2A :2 crack
2>6A ：1 crack
3>11A-12A 3 pcs bolts replaced
Progress:
Scaveng manifold repair
B.Scaveng manifold repair --inside (position is S1&S2)
Engineer was check crack position and goguing /granding /welding with G507 rod / and aft 24hours PT test that was all good condition
C.Scaveng manifold support repair --outside (posion is B1&B2)
D.Scaveng manifold repair --outside (posion is B3&B4)
E.Scaveng manifold repair --outside (position is B5)
Progress:
Scaveng manifold support repair
F.Scaveng manifold support repair --outside (posion is B6&B7&B8)
G.Exhaust manifold outside repair
--E5、E6、E7、E8
Progress:
Exhaust manifold inside posision E1 & E2 & E3
Repair paln :
1-the crack at the exhaust manifold is due to the support rib causing,therefore we need Goguing rib plate for make clearance to collar plate insert,the old welding should be Goguing too...
2-Collar plate should welding T 16MM for strengthening,The collar plate will be premanufactured for some dimensions, preparation for final size and shape to be done at site
3-Elc welding rod used type 557R .
4-Regarding manifold inside repair show below
Service Hotline
Mailbox:leo@seawave-engineering.com(Domestic)
Add:Building 3, No. 3238 Huhang Highway, FengXian District,ShangHai ,China