Abrasion resistant filament wear guides and method of making same
AssigneeSurface Technology, Inc.
InventorsJohn J. Rausch, Ray J. Van Thyne
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Abstract
Filament wear guides which are characterized by excellent resistance to abrasive filament wear. Also, the method of their fabrication. A chromium surface on a substrate is controllably nitrided. Such nitriding is accomplished thermally. Resulting chromium nitride surface layer is non-particulate and substantially impervious.
Claims3
A filament wear guide consisting essentially of:
- a. a substrate member in the form of the wear guide;
- b. a continuous, integral chromium interlayer on said substrate member at least in the area thereof to be contacted by a filament passing thereover;
- c. a surface supported on said chromium interlayer consisting of non-particulate, continuous thermally formed chromium nitride, said surface confirming to the shape of the surface of said chromium interlayer;
- and
- d. wherein the combined thickness of said chromium interlayer and said chromium nitride surface is at least 5 microinches.
A filament wear guide consisting essentially of a substrate member in the form of the wear guide, a composite structure on said substrate member at least in the area thereof to be contacted by a filament passing thereover formed by reaction of nitrogen along the fault boundaries in chromium electroplated on said substrate.
Dependencies are inferred from the claim text.