Transfer roll with ceramic-fluorocarbon coating containing cylin

Details Transfer roll with ceramic-fluorocarbon coating containing cylin Transfer roll with ceramic-fluorocarbon coating containing cylin

1984-02-17

1986-01-28

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

101348, 156645, 156663, 156905, 1562728, 219121LJ, 219121LS, 427 531, B23K 900, B41F 146, B44C 122

Patent

active

045669384

ABSTRACT:
An ink transfer roll composed of a steel base covered by a ceramic-fluorocarbon outer layer into which are formed generally cylindrically shaped ink holes having a hemispherical bottom, a generally cylindrical intermediate portion and a rounded, beveled entryway. The ink holes are produced using a pulsed high energy source, such as a pulsed laser. An intermediate layer of corrosion resistant metal and fluorocarbon may be deposited between the steel base and the outer layer of ceramic-fluorocarbon material. Adhesion of the ceramic-fluorocarbon layer to the transfer roll is improved if corrosion resistant metal-fluorocarbon material is contained in the ceramic-fluorocarbon layer such that the quantity of corrosion resistant metal-fluorocarbon material in the ceramic-fluorocarbon layer gradually decreases in the direction away from the intermediate layer-outer layer interface, the quantity of corrosion resistant metal-fluorocarbon material in said outer layer being greatest at said interface.

REFERENCES:
patent: 3832948 (1974-09-01), Barker
patent: 3867217 (1975-02-01), Maggs et al.

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