Method and an apparatus for polishing a roller and for removing

Details Method and an apparatus for polishing a roller and for removing Method and an apparatus for polishing a roller and for removing

1999-08-13

2000-09-05

Morgan, Eileen P.

Abrading

Abrading process

Roll, roller, shaft, ball, or piston abrading

451 51, 451 63, 451 58, 451160, 451285, 451 11, B24B 4900

Patent

active

061134724

ABSTRACT:
A method and to an apparatus for polishing a gravure roller, and for removing the chromium plating thereof, wherein the roller has a metallic shell galvanically covered by a copper layer having a pattern and a protective chromium plating. The method includes the steps of hitting the chromium plating with blunt bodies associated with a first rotating disk, thereby removing the chromium plating, which is broken and removed through the elastic collapsing of the underlying copper layer when the blunt bodies hit the chromium plating; and smoothing the copper layer by means of a second rotating disk provided with abrasive members. The apparatus includes an ammeter circuit for controlling the pressure exerted by the disk on the roller surface.

REFERENCES:
patent: 3881887 (1975-05-01), Mcmaster
patent: 4716687 (1988-01-01), Tsukamoto et al.
patent: 5447463 (1995-09-01), Schmitz
patent: 5525092 (1996-06-01), Hirano et al.

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