KHIA headerKnow-How in Action

VOL XXVI, NO 28

Belzona® Injects New Life Into Hydro Dam Bearing

 
 

Industry:

Power (POWR)

 
 

Application:

Mechanical Power Transmission (MPT)

 
 

Customer Location:

Hydroelectric plant, Missouri

 
 

Application Date:

February 2012

 
 

Application Situation:

Customer had damaged the bearing surface and was looking for a cost effective long term affordable repair.

 
 

Problem:

While running a high voltage test on the bearing and isolator ring a section of the bearing was damaged when a spark melted one area.

 
 

Products:

Belzona® 1221 (Super E Metal)

Belzona® 1321 (Ceramic S Metal)

 

Substrate:

Cast iron

 
 

Application Method:

The application was carriedout using a modified version of Belzona Know-How System Leaflet MPT-2. The Belzona® 1321 was injected into a mold that had been treated with Belzona® 9411 (Relaease agent) after the Belzona® 1221 had been used to seal all the open areas to contain the injected material within the repair area.

 
 

Belzona Facts:

The alternative option to Belzona was to have a machine shop come in and weld up the area and then machine it back down.  The heat involved was a major concern. Estimated cost was $50,000 for this repair. The Belzona repair was 1/10th of the cost and completed within a few hours.

 
 

Photographs Description

  1. Close up of the damaged surface
  2. Mold being treated with release agent
  3. Injecting the Belzona® 1321
  4. Completed repair
 
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