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Posted by Gordon England (62.252.0.5) on 12:57:08 13/10/04
In Reply to: thickness of coating posted by hemang
: Hvof coating on pelton wheel,what thickness do you recommend when the silt level is upto 5000 ppm and 40% is quartz less than 2 micron
:operating condition
: turbine head 900 metre
:r.p.m 750 metre
:kindly suggest the thickness by WC coating (WC,10%CO,4%Cr)
: thanking you
:Hemang
Depends to some extent on the powder type and HVOF equipment. Generally I would aim at about 0.010" (250 micromteres). Thicker coatings are possible but extra care will be needed.
Regards Gordon
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