Process for increasing the resistance to cracking corrosion of e

Details Process for increasing the resistance to cracking corrosion of e Process for increasing the resistance to cracking corrosion of e

1983-07-19

1984-12-18

Rutledge, L. Dewayne

Stock material or miscellaneous articles

All metal or with adjacent metals

Having composition, density, or hardness gradient

72160, 148 39, B21F 100

Patent

active

044891377

ABSTRACT:
The resistance to cracking corrosion of steel elongate elements, such as wires or armorings of flexible pipes or cables destined to be exposed to the corrosion of aqueous corrosive media, is increased by subjecting said elements to a series of alternate flexions in opposite directions, by passing them between rollers in staggered arrangement, so as to generate in said elements compression zones extending from each of the main external surfaces thereof to the inside over at least one third of the distance of said surface to the longitudinal axis of the element.

REFERENCES:
patent: 3777532 (1973-12-01), Noe 72160

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