Metal squeegee blade with a titanium nitride coating

Details Metal squeegee blade with a titanium nitride coating Metal squeegee blade with a titanium nitride coating

1997-11-04

1999-09-07

Burr, Edgar

Printing

Stenciling

Rotary machines

101123, B41F 1544

Patent

active

059470216

ABSTRACT:
A squeegee blade comprising a base metal core coated with titanium nitride. Preferably, the blade also comprises a nickel coating between the base metal and the titanium nitride. The core blade is provided with an edge with a desired radius of curvature by chemical milling, and then the whole blade is chemically polished or electropolished and optionally nickel plated to produce a very smooth finish. The blade is then coated with titanium nitride to produce a blade with an extremely hard, low-friction surface. A squeegee incorporating the blade can be used, for example, for screen printing solder paste, conductive epoxy, or the like onto printed circuit boards.

REFERENCES:
patent: 5120596 (1992-06-01), Yamada
patent: 5707575 (1998-01-01), Litt et al.
patent: 5746127 (1998-05-01), Fischbeck et al.

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