KHIA headerKnow-How in Action

VOL XXVIII, NO 167

Belzona® Repairs Drilling Machine Thread

 
 

Industry:

General Industry (GIND)

 
 

Application:

Engines and Casings (ENC)

 
 

Customer Location:

Lynchburg, VA, USA

 
 

Application Date:

July 2014

 
 

Application Situation:

Threads on drilling machine were worn.

 
 

Problem:

Worn threads on drilling machine would not allow the drill to seal properly, allowing water to leak and lose water pressure.

 
 

Products:

Belzona 1111 (Super Metal)

 

Substrate:

Steel

 
 

Application Method:

The threads were cleaned, using a suitable cleaner/degreaser and a wire brush on the female threads. A release agent was used on a new male thread piece. Belzona 1111 was mixed and applied to both male and female threads. The new piece was screwed into the worn female piece. The excess was wiped off and it was allowed to cure overnight. The new piece was removed in the morning, inspected and then screwed back and sealed. The drill has been constantly used for 2 months now and there are no signs of leakage.

 
 

Belzona Facts:

Replacing the female drill piece would be very expensive, with thousands of dollars in cost. Additionally, the new piece would have to be ordered, which would take several days to receive, increasing downtime.

 
 

Photographs Description

  1. Overview of the drill
  2. Male thread being placed underneath the female piece
  3. Oversized female thread filled with Belzona 1111
  4. Belzona 1111 applied on male thread prior to placing both pieces together to complete the application
 
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