KHIA headerKnow-How in Action

VOL XIII, NO 16

Belzona® Restores Perforated Profile Of Couch Roll

 
 

Industry:

Pulp & Paper (PLPR)

 
 

Application:

Solids Handling Machinery (SHM)

 
 

Customer Location:

Paper Mill in Quebec, Canada

 
 

Application Date:

January 1998

 
 

Application Situation:

A hollow perforated Couch Roll containing one or two stationary high-vacuum suction boxes for de-watering the sheet.

 
 

Problem:

A mill wright's tool was introduced onto the couch roll and caused damage to a foot long section of the roll.

 
 

Products:

Belzona® 1111 (Super Metal)

 

Substrate:

Bronze

 
 

Application Method:

The application was carried out in accordance with a modified version of Belzona Know-How Leaflet SHM-12.

 
 

Belzona Facts:

Typically a new couch roll costs between $500,000 and $700,000 in addition to the downtime costs of the paper machine.

 
 

Photographs Description

  1. Rebuilding the foot long damage area with Belzona® 1111 (Super Metal)
  2. Inserting the tapered nylon plugs
  3. Grinding the plugs as well as the Belzona ® 1111 (Super Metal) flush with the roll
  4. Finished repair with the roll profile restored
 
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