Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1994-06-28
1995-11-07
Niebling, John
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
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
Donahue Harvey
Hoy Brenda
Kim Ronald
Oehr Klaus H.
Roth Reinhold C.
Dynamotive Corporation
Niebling John
Phasge Arun S,.
LandOfFree
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.
Profile ID: LFUS-PAI-O-194990