KHIA headerKnow-How in Action

VOL XX, NO 7

Belzona® Rebuilds Rudder Pintle Housing

 
 

Industry:

Marine (MRNE)

 
 

Application:

Ships and Offshore Structures (SOS)

 
 

Customer Location:

Dry Docking Company - Vancouver, British Columbia - Canada

 
 

Application Date:

September 1999

 
 

Application Situation:

The rudder pintle housing was oversize and needed to be rebuilt

 
 

Problem:

A breakdown of the seal had allowed seawater to enter the housing causing bi-metallic corro sion.

 
 

Products:

Belzona® 1311 (Ceramic R-Metal)

Belzona® 1321 (Ceramic S-Metal)

 

Substrate:

Mild steel

 
 

Application Method:

Application carried out in accordance with Belzona Know-How System Leaflet SOS-3.

 
 

Belzona Facts:

Rebuilding rudder pintle housing in this manner has three major advantages over a conventional repair.It eliminates stress cracking as no heat is involved.It reduces dry docking time andIt solves the problem of bi-metallic corrosion.

 
 

Photographs Description

  1. View of coated rudder pintle one being inserted into the bore which has also been pre-coated.
  2. The pintle now completely inserted and extruded material removed.
  3. The pintle removed showing reformed bore giving 100% contact with the pintle.
 
Case study pic one

 

 
 Case study pic two

 

 
 Case study pic three

 

 
 

 

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