Method for manufacturing a steel Yankee drier and a steel Yankee drier

A method for manufacturing a steel Yankee drier including a cylindrical steel mantle with two end heads on each of which a corresponding pin is arranged, the cylindrical mantle having an external surface and an internal surface, and the internal surface of the mantle in cooperation with the end head...

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Bibliographische Detailangaben
Hauptverfasser:	Masia, Giulia, Marenco, Stefano, Micheli, Leonardo, Bibbiani, Jacopo, Ghelli, Luca, Passanisi, Gaetano, Simoncini, Francesco, Piccinocchi, Alessandro
Format:	Patent
Sprache:	eng
Schlagworte:	MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METHODS OF PRODUCING PAPER THEREON PAPER-MAKING PAPER-MAKING MACHINES PERFORMING OPERATIONS PRODUCTION OF CELLULOSE PUNCHING METAL TEXTILES TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	A method for manufacturing a steel Yankee drier including a cylindrical steel mantle with two end heads on each of which a corresponding pin is arranged, the cylindrical mantle having an external surface and an internal surface, and the internal surface of the mantle in cooperation with the end heads delimiting an internal chamber of the Yankee drier in which steam can be introduced. The surface protective coating is at least partially formed on the internal surface of the mantle by introducing a predetermined amount of a nickel bath in a volume delimited in a radial direction by the internal surface of the mantle, followed by a permanence of the bath in said volume for a predetermined time. The surface protective coating protects the internal surface of the mantle from corrosive and/or abrasive agents contained in the steam introduced into said chamber.