Method and apparatus for removing coatings from plastic laminate

Details Method and apparatus for removing coatings from plastic laminate Method and apparatus for removing coatings from plastic laminate

1991-06-03

1992-03-03

Rose, Robert A.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51410, 51320, B24C 314

Patent

active

050920847

ABSTRACT:
Abrasive method for the removal of coatings, such as paint, decorative films, overlays and the like from plastic surfaces, especially plastic laminates. The method operates by utilizing an impeller wheel which is movable at a substantially constant distance relative to the surface of a workpiece. A stream of abrasive particles is directed against the surface, and consists of sharp-edge steel-elastic plastic granules which impact with a velocity between 25 and 100 m/s. The impeller is guided steadily in several passes over all surface areas to be treated. After each pass a visual inspection is performed. Preferably the granules have a hardness of 3-3.5 on the Mohs hardness scale.

REFERENCES:
patent: 2077635 (1937-04-01), Minich
patent: 2263321 (1941-11-01), Unger
patent: 2708814 (1955-05-01), Straub
patent: 3936979 (1976-02-01), Fuerst

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