Devcon Maintenance and Repair Solutions - Sintemar
Devcon Maintenance and Repair Solutions - Sintemar
Devcon Maintenance and Repair Solutions - Sintemar
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Field Application Reports<br />
Products:<br />
Application Date:<br />
Customer:<br />
Industry:<br />
Location 114<br />
Coal Pulverizer <strong>Repair</strong><br />
Wear Guard High Temp<br />
8/12/97<br />
Pennsylvania Power <strong>and</strong> Light<br />
Utility Power Generation<br />
Problem:<br />
This pulverizer would receive extreme wear from the abrasion of pulverizing or crushing coal prior to<br />
being fed to the boilers. The wear was so severe that the metal was completely worn through. Previous<br />
method of repair was to weld or replace missing metal with AR plates.<br />
Solution:<br />
<strong>Repair</strong> area was roughened to a SSPC-SP5 white metal finish using a grinding machine. Gouges were<br />
ground into the metal to improve mechanical bonding properties of Wearguard High Temp.. All surface<br />
areas were chemically cleaned using Cleaner Blend 300. Wear Guard High Temp was applied to rebuild<br />
or replace missing metal. Wear Guard was smoothed, contoured <strong>and</strong> feathered using acetone as a thinning<br />
agent. Acetone should be used only after gel point or stiffening of Wear Guard High Temp.
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