Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Coating thickness problem
Hi,
I'm doiing sulfuric acid anodizing MIL 8625 e .
I'm performing the same parameters voltage 12-18 volts,bath conc.200g/l, temp 16-18c,
and time 35 minutes but I'm not getting the appropriate thickness, my req.is 15 micron but I'm getting only 8 micron?
can any body explain what are those parameters which can increase thickness,
thanx
precision engineering - Karachi, Pakistan
2005
Different alloys behave differently, including requiring different voltages. What alloy are you anodizing?
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2005
Forget the 12 volts! 15 is a practical minimum and 18 is far far better.
James Watts- Navarre, Florida
2005
For predictable results 12-15 Amps/sq.ft is even better than that! Although, on complex loads, anodizing by current density is not always feasable.
Marc Green
anodizer - Boise, Idaho
2005
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