Posted by Hong Wang (207.54.105.185) on 21:16:59 06/01/06
I had the same problem as Gordon Picture in the NiCr coat when I
was spraying Metco 45 chemical is same as yours. We used 9MB Ar/H2
gas. the Oxide cluster is identical to Gordon posted pictures. Alex
and Ben, did you use the front cooling jets? Maybe reduce the
pressure of the front jet will make it better. If the turbulent
theory correct, (a speicalist from PW told me the same thing
and I do agree with it)why increasing dwell time work? If
reduce velocity, You get higher porosity which is impt to this
coat. You got the optimize it. I am also very interested to learn
it if someone make it work.
Gordon, to your experience, does it happen to all hard-to-melt
coating?
Thanks, Hong
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