Reel-to-reel passivation of stainless steel wire

Details Reel-to-reel passivation of stainless steel wire Reel-to-reel passivation of stainless steel wire

1995-08-18

1997-03-04

Silverberg, Sam

Metal treatment

Process of modifying or maintaining internal physical...

Processes of coating utilizing a reactive composition which...

205320, 205138, C25F 100

Patent

active

056075200

ABSTRACT:
A method and apparatus for performing continuous reel-to-reel passivation of a stainless steel wire usable in an underwater electromechanical or optical cable of a mine hunting sonar or similar marine system, which supplies the stainless steel wire, under tension, immerses a first portion of the stainless steel wire in 10-20% nitric acid bath at ambient temperature; applies a current from a DC power supply to the immersed first portion of the stainless steel wire, advances the stainless steel wire, under tension, to repeat the immersing and current supplying on a second portion of the stainless steel wire, washes the first portion of the stainless steel wire in a flowing water wash, dries the first portion of the stainless steel wire with forced air, advances the stainless steel wire, under tension, to repeat the washing and drying on the second portion of the stainless steel wire, and stores the stainless steel wire under tension.

REFERENCES:
patent: 3247086 (1966-04-01), Goldstein
patent: 3287237 (1966-11-01), Wilton
patent: 3637466 (1972-01-01), Girard
patent: 4610798 (1986-09-01), Burkus
patent: 4612095 (1986-09-01), Omata
patent: 5342503 (1994-08-01), Byler
"Federal Specification Passivation Treatments for Corrosion-Resistant Steel" QQ-P-35C Oct. 28, 1988.

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