OVERVIEW: The fabricated carbon steel fan came under attack from atmospheric moisture and abrasion due to crystalline quartz dust in the hot air fumes that it was extracting. This resulted in costly unplanned shut-downs and reduced efficiency.
Chemcote supplied a coating to extend the life of the hot air impeller and reduce premature failures.
INDUSTRY
SUBSTRATE
Fabricated carbon steel fan
CHALLENGE
During the extraction of hot air fumes, the hot air impeller came under attack from atmospheric moisture and abrasion due to crystalline quartz dust in the air. This proved costly as it resulted in unplanned shut-downs and reduced efficiency. Chemcote was asked to supply a coating that would extend the life of the hot air impeller and reduce premature failures caused by abrasion and corrosion attack.
SOLUTION
Chemcote recommended a coating system suitable for corrosive and abrasive environments and with the ability to resist high temperatures. The low friction finish reduced foreign body build up and increased efficiency, reducing unplanned shutdowns
SCOPE
Pre-balance, grind welds, sharp edges & remove weld spatter
Abrasive Blast to class 2.5, minimum 50pm profile
Apply RS 500P in 1 coat
Apply RU 500 in 2 coats to a DFT of 400µm – 500µm
Post balance to clients required tolerance
PRODUCTS
OUTCOME
The hot air impeller has been operating with increased efficiency and without operational issues, the client is now looking at a program to line a further 19 fans based on this success using the RS 500P and RU 500 coating systems
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