Process of producing aluminum substrate for magnetic...

Details Process of producing aluminum substrate for magnetic... Process of producing aluminum substrate for magnetic...

C - Chemistry, Metallurgy

25

D

204/24.5

C25D 11/08 (2006.01) C25D 11/06 (2006.01) G11B 5/73 (2006.01)

Patent

CA 1237694

ABSTRACT OF THE DISCLOSURE An aluminum substrate suitable for making high-density magnetic recording media is produced by anodising a surface of the aluminum material in an aqueous chromic acid solution at an electrolytic voltage higher than 60 volts. The anodic film thus formed has no black spot defects as also exhibits no cracks when the substrate is heated at a high temperature for forming a magnetic recording layer. The effect is further improved by adding a small amount of oxalic acid to the electrolyte. - 16 -

449707

Affiliated with

Also associated with

Rating

Process of producing aluminum substrate for magnetic... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process of producing aluminum substrate for magnetic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of producing aluminum substrate for magnetic... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1302830