KHIA headerKnow-How in Action

VOL XXIII, NO 99

Pintle Repair With Belzona

 
 

Industry:

Marine (MRNE)

 
 

Application:

Ships and Offshore Structures (SOS)

 
 

Customer Location:

Ship repair yard, Varna, Bulgaria

 
 

Application Date:

May, 2007

 
 

Application Situation:

Pintle housing on cargo ship.

 
 

Problem:

The keyway was damaged by galvanic corrosion and in certain areas the damage reached 40mm in width.Corrosion pitting was severe, up to 12 mm deep in the tapered housing.

 
 

Products:

Belzona® 1111 (Super Metal)

 

Substrate:

Steel

 
 

Application Method:

Application was carried out in accordance with Belzona Know-How System Leaflet SOS-3. The keyway channel on the rudder was infilled and a new channel machined at 180°.

 
 

Belzona Facts:

Boring was not an option because the diameter was so far gone. Customer had to rebuild up to 2 cm of metal on the taper of the rudder in order to get correct fit. Belzona was more cost effective and faster than traditional methods such as welding and provided galvanic corrosion protection by isolating the dissimilar metals.

 
 

Photographs Description

  1. Prepared Surface
  2. Application of Belzona to housing
  3. Rebuilt keyway and housing surfaces
  4. Fitting the Pintle
 
Case study pic one

 

 
 Case study pic two

 

 
 Case study pic three

 

 
 Case study pic four

 

 
 
For more information about Belzona visit: www.belzona.com