Process for improving the emissivity of a non-based tension shad

Details Process for improving the emissivity of a non-based tension shad Process for improving the emissivity of a non-based tension shad

1989-11-20

1990-11-20

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

Electrode making

H01J 2907

Patent

active

049715909

ABSTRACT:
The power handling capability of a nickel-iron-based tension foil shadow mask is enhanced by a process which creates a high emissivity layer or region on the surface of the body of the mask. One version of the process includes contacting the mask foil with a strong reducing acid to provide a nickel-enriched, iron-depleted surface layer of the body of the mask. The nickel of the nickel-enriched, iron-depleted surface layer is converted to a nickel phosphide compound by again contacting the foil with a strong reducing acid having an effective amount of hypophosphite ions. In another version of the process, the nickel phosphide compound is formed in a single treatment with a strong reducing acid containing hypophosphite ions.

REFERENCES:
patent: 3867207 (1975-02-01), Decker et al.
patent: 3967985 (1976-07-01), Izumi et al.

Affiliated with

Also associated with

Rating

Process for improving the emissivity of a non-based tension shad does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for improving the emissivity of a non-based tension shad, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for improving the emissivity of a non-based tension shad will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-452413