Industry:
Local Authorities-City Councils,
Date:
October 2005,
Substrate:
Cast iron Impeller,
Products:
Chem-tect™ RB 300,
Environment:
Sewerage Treatment,
Challenge:
The profile of an old impeller had been ruined by corrosion and erosion. This is severely reducing pump performance and increasing operating costs and since a replacement impeller would suffer the same corrosion attack, the Client sought a cost effective and long lasting solution.
Corroded impeller Kevlar reinforcing Machining to original dimensions
Chemco’s Solution:
The internals of the impeller were badly corroded and required refurbishment as a replacement would take up to 12 weeks. The client required a fast turnaround. Therefore, the challenge was to refurbish and rebuild to original profile in as short a time as possible.
Scope:
- RB 300 (AR) to rebuild surfaces
- Kevlar to improve strength
- RB 300 (AR) application to achieve desired thickness
- Post cured at 80°C for 8 hours to improve chemical and abrasion resistance
- Final machining to original dimension and tolerances using a PCD (poly carbonate diamond) tip.
Results:
With Chemco Australia’s application providing proven long term corrosion protection, many other components have been refurbished using similar methods both on site and within our fully equipped workshop.
