Corrosion resistant solenoid valve

Details Corrosion resistant solenoid valve Corrosion resistant solenoid valve

1998-06-23

2000-07-25

Sheehan, John

Metal treatment

Stock

Magnetic

148312, 420435, 420441, 420460, 25112909, 25112915, H01F 114

Patent

active

060932627

ABSTRACT:
A ferromagnetic, high strength, corrosion resistant material for use in electromagnetic equipment. The material comprises Cobalt or Nickel or a combination of these elements in an amount equal to or greater than 60% by weight, with the balance comprising one of a group consisting of Beryllium, Lithium, Aluminum, or Titanium. In different embodiments of the invention, 3% or less of the material comprises Beryllium, with the balance comprising Nickel or Cobalt. The material provides adequate yield strength for use downhole in wellbores, is highly resistant to corrosion induced by downhole well fluids and sea water, and has high ferromagnetic characteristics suitable for use in solenoid valves and other downhole well equipment.

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Hansen (I), Constitution of Bianry Alloys, pp. 511-514, 1958.
Hansen (II), Constitution of Binary Alloys, pp. 10491053, 1958.
Weidner et al., Elementary Classical Physics, Apr. 1967, pp. 837 to 838.
The American Heritage Dictionary of the English Language, p. 1229, 1976.

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