Chute Lining RepairBack to
||Canada Cement Lafarge|
Wear Guard™ Fine Load
The flow of water and aggregate mixture feeding into the ball mill would cause extreme wear to these infeed chutes. Past repair procedure was to fabricate and install abrasion resistant plates as a liner. Abrasion resistant plates were expensive and usually required several days to fabricate.
Existing Abrasion resistant plates were removed. Flat expandable metal was tack welded in a raised position 1/8" above the actual substrate. Tack welding expandable metal provided a mechanical bonding surface and offered improved resistance to the impacting of aggregate. Chute was then sandblasted to a SSPC-SP5 white metal finish. Complete repair areas were then chemically cleaned using Cleaner Blend 300. Wear Guard Fine Load was applied to a thickness of 3/4" pressing through the expandable metal, establishing complete contact to the substrate. Wear Guard Fine Load was smoothed, feathered and sculpted using acetone following gel point.