Method for removal of certain oxide films from metal surfaces

Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

2041445, 204145R, 204146, C25F 100

Patent

active

054645107

ABSTRACT:
A manufactured metal member, such as a wire, having a magnetite oxide film thereon, is subjected to mechanical stress to produce cracking of the magnetite film approximately to the surface of the metal member. The metal member is then moved through an electrolysis cell bath in which the metal member forms the anode thereof, and vertically positioned steel bars form the cathode. A pulsating DC current is applied to the anode and the cathode. The current flows to the surface of the metal member via the cracks in the oxide, maintaining the metal member anode in a state of depassivation and loosening the bond between the oxide film and the metal member. The loosened magnetite is then readily cleaned off the metal member. A thermal stressing step may also be used prior to the mechanical stressing.

REFERENCES:
patent: 3525243 (1970-08-01), Chrablow
patent: 4406761 (1983-09-01), Shimogori et al.
patent: 4711707 (1987-12-01), Kikuchi et al.
patent: 4795537 (1989-01-01), Timewell

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method for removal of certain oxide films from metal surfaces 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 for removal of certain oxide films from metal surfaces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for removal of certain oxide films from metal surfaces will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-194990

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.