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Ship Repairs
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Cylinder Cover

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The cylinder covers reconditioned by Mariso team are of superior quality which can compete with the new ones. This is achieved by the complete and thorough cleaning and inspecting of every tiny cracks and defects, thanks to LR approved welding procedures and materials. All reconditioned components undergo careful quality checks including magnetic particle test which are performed by competent personnel. Relevant records are maintained.


Before Reconditioing


Corroded injector nozzle hole 

 

Automatic arc-submerging welding 


Boring hole


Magnetic particle test


CNC final machining


Automatic arc-submerging welder


After reconditioning 

          

 


Major reconditioning procedures 


  • Pre-machining and cleaning damages or cracks
  • Building up cut-off of damages or cracks by welding
  • Welding stress relief by heat treatment
  • Final machining
  • Hydraulic pressure test
  • Magnetic particle test