Method for removal of certain oxide films from metal surfaces
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 7, 1995
Issued Date -
N/A
app pub date -
Jun 28, 1994
filing date -
Jul 21, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully