Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1976-04-19
1977-07-12
Tufariello, T. M.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
2041415, C25F 100, C25F 106
Patent
active
040352560
ABSTRACT:
A process for the electrolytic removal of lubricants from steel strip which significantly reduces the amount of power required while enhancing the degree of lubricant removal. The process comprises (i) electrolyzing the strip in an alkaline electrolyte by applying a current density within the range of 350 to 4,000 amps per square foot, and (ii) passing the strip lengthwise, at a speed of 450 to 3,000 feet per minute, between at least one pair of horizontally arranged electrodes in parallel spaced relation wherein the distance between a planar surface of the strip and its respective facing electrode is from one-fourth of an inch and no greater than 11/2 inches. The amount of power required is significantly reduced by flowing the electrolyte co-current with the direction of strip travel at a flow velocity which is from 50 to 100 percent of the strip speed.
REFERENCES:
patent: 2244423 (1941-06-01), Hall
patent: 2370973 (1945-03-01), Lang
patent: 2395437 (1946-02-01), Venable
patent: 3496086 (1970-02-01), Stalson et al.
patent: 3650935 (1972-03-01), Andersson
Brendlinger Edward C.
Higgs Richard F.
Kharouf Issa J.
Ray, Jr. James O.
Tufariello T. M.
United States Steel Corporation
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