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How to remove carbon or flux after welding?

I did welding at ms wire, but welding carbon spread in the welding joint which affects coating.........give me a solution of it...........thanks a lot

Chuwamaa Mastichooo
production manager - Colombo, Sri Lanka
October 1, 2010

November 10, 2010

HI CHUWAMMA,
YOU CAN USE A SOLUTION WITH;
H2SO4 20%
HCl 20%
INHIBITOR 2%, TIME 10 MIN
FIRST YOU ADD H2SO4 TO WATER THEN HCl ADD TO THEM
THEN ADD INHIBITOR.
GOOD LUCK

ASAD SHAHBAZI
- ARAK, IRAN

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