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Hard Chrome Plating

Major Defects Generally develop in Hard chrome plating?
Reasons for such defects?
How to avoid this defects?
for better adhresion what is added?
any brighting agent for hard chrome plating?
please advise

Karnail Singh Singh
hydraulics manufacturer - New Delhi
August 20, 2008

Hi, Karnail. Guffie's Hard Chromium Plating was written to concisely answer those questions. Good luck.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.
August 20, 2008

What should be the ideal working temperature for the bath?
What happen if the temperature is not as per requirement?

Mohsin Siddiqui
- Pakistan
August 22, 2008

Hi, Mohsin. 140 &F would be a common spec, but it can depend upon the type of chrome solution, the concentration, and whether auxiliary anodes are involved. Chrome has a very narrow band where plating will even take place. If the temperature is too high for the current density being used, there will likely be no plating; if it's too low there will likely be burning.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.
August 22, 2008

adv.
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