Title:
METHOD OF MANUFACTURING ROTOGRAVURE CYLINDERS
Document Type and Number:
WIPO Patent Application WO/2014/057052
Kind Code:
A3
Abstract:
The present invention describes a method for manufacturing rotogravure cylinders with a cylinder base made of aluminum. The method involves the coating of the cylinder surface with high velocity spraying, the copper plating in an appropriate solution, the engraving of the cylinder, and the hardening of the cylinder by chromium plating. The spraying process is accomplished by High-Velocity Air-Fuel or High-Velocity Oxygen-Fuel thermal spraying which leads to less surface porosity, better adhesion of the copper substrate and better dimensional accuracy. The advantage of this method is the elimination of the surface roughening process and the elimination of the preplating process. In addition, the end plates are manufactured partly from aluminum and partly from steel which further reduces the total weight of the cylinder. The elimination of these processes reduces the weight of the cylinder and the overall manufacturing time considerably.
Inventors:
IOANNOU IOANNIS (GR)
Application Number:
PCT/EP2013/071195
Publication Date:
November 13, 2014
Filing Date:
October 10, 2013
Export Citation:
Assignee:
ARTIO SARL (TN)
International Classes:
B41N1/20; B41C1/18; C25D5/34; C25D7/00
Domestic Patent References:
| WO2011073695A2 | 2011-06-23 |
Foreign References:
| EP0092285A1 | 1983-10-26 |
Attorney, Agent or Firm:
NOLLEN, Maarten, Dirk-Johan (P.O. Box 18558, EN The Hague, NL)
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