High current density, acid-free electrolytic descaling process

Details High current density, acid-free electrolytic descaling process High current density, acid-free electrolytic descaling process

1981-02-27

1982-12-14

Tufariello, T.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

C25F 106

Patent

active

043637094

ABSTRACT:
A process for removing an oxide scale from the surface of a metallic body is disclosed comprising the steps of providing an electrolyte consisting of an aqueous solution containing about 15 to 25 weight percent sodium sulfate, maintaining the electrolyte at a temperature of at least 150.degree. F., and immersing the metallic body into the electrolyte such that the surface to be descaled is exposed to the electrolyte. During immersion, the metallic body is subjected as the anode to the action of a direct electric current for a period of at least 10 seconds at a current density of at least 3 amperes per square inch.

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patent: 3338809 (1967-08-01), Stricker
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patent: 4012299 (1977-03-01), Zaremski et al.
patent: 4026777 (1977-05-01), Zaremski et al.
patent: 4035256 (1977-07-01), Brendlinger
patent: 4066521 (1978-02-01), Zaremski et al.

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