Method of treating metal surfaces prior to phosphatization

Details Method of treating metal surfaces prior to phosphatization Method of treating metal surfaces prior to phosphatization

C - Chemistry, Metallurgy

23

C

148/17

C23C 22/80 (2006.01) C23C 22/78 (2006.01)

Patent

CA 1151497

ABSTRACT This invention is directed to a method for treating metal surfaces. More particularly, this invention is directed to an improved method for cleaning, scouring, and activating metal surfaces prior to phosphatization, which comprises contacting said metal surfaces with an aqueous solution comprising primary and/or secondary alkali metal or ammonium salts of orthophosphates and conventional metal cleaning components, the solution having a pH value of from about 6.3 to 8.2, said pH being lower than the pH value of solutions of the corresponding secondary ortho- phosphates alone having the same concentration; and con- taining optionally condensed phosphates in an amount cor- responding to the amount necessary to soften the water hardness of the water used. -A-

367202

Affiliated with

Also associated with

Rating

Method of treating metal surfaces prior to phosphatization does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of treating metal surfaces prior to phosphatization, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of treating metal surfaces prior to phosphatization will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-37537