KHIA headerKnow-How in Action

VOL XXX, NO 43

Belzona® Repairs And Protects Turbine

 
 

Industry:

Power (POWR)

 
 

Application:

Centrifugal Pumps (CEP)

 
 

Customer Location:

Hydroelectric Plant, Honduras

 
 

Application Date:

December 2004

 
 

Application Situation:

Turbine Blades

 
 

Problem:

Damage on the 24 turbine blades due to erosion and corrosion. 70% of the blades had the same type of problem.

 
 

Products:

Belzona 1111 (Super Metal)

Belzona 1321 (Ceramic S-Metal)

Belzona 9111 (Cleaner/Degreaser)

 

Substrate:

Steel

 
 

Application Method:

The surface preparation was carried out with mechanical tools, such as grinder, until the area was rough, clean and free from contamination. Belzona 9111 was applied to clean and decontaminate the area. The application was carried out in accordance with Belzona Know-How System Leaflet CEP-1. The application of Belzona 1111 was carried out in 2 hours on 24 blades. After the product cured, it was machined to give the final profiles to the blades. To protect the repair, Belzona 1321 was applied with a brush in a layer of 500 microns.

 
 

Belzona Facts:

The repair took two days and the personnel at the Hydroelectric Plant gained knowledge of Belzona products and procedures.

 
 

Photographs Description

  1. Damage on the turbine blades
  2. Application of Belzona 1111
  3. Application of Belzona 1321
  4. Blades rebuilt and protected
 
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