Abstract: A papermaking machine including a Yankee drier having a body with a metal mantle with circular cross-section and two side heads on which are formed or mounted two respective coaxial pins arranged along a rotation axis of the Yankee, the body being configured to rotate with a predetermined angular speed around said rotation axis. Inside the body is arranged a fixed electromagnetic induction heating system including one or more inductors interacting electromagnetically with the mantle to produce induced electric currents in the same mantle, the one or more inductors being arranged near the radially innermost surface of the mantle.

Abstract: A papermaking machine including a Yankee including a body provided with a metal mantle with circular cross-section and two end heads on which are formed or mounted two respective coaxial pins arranged along a rotation axis of the Yankee, the body being configured to rotate with a predetermined angular speed around said rotation axis. Inside the body is arranged a fixed electromagnetic induction heating system including one or more inductors interacting electromagnetically with the mantle to produce induced electric currents in the same mantle, the inductors being arranged near the radially innermost surface of the mantle. In the machine is arranged a structured web configured for transporting a sheet of fibrous material up to the contact of the latter with the mantle of the Yankee.

Abstract: A Yankee drier for paper production including a body having a metal mantle with circular cross-section and two side heads on which are formed or mounted two respective coaxial pins arranged along a rotation axis of the Yankee, the body being configured to rotate with a predetermined angular speed around the rotation axis. Inside the body is arranged a fixed electromagnetic induction heating system comprising one or more inductors interacting electromagnetically with the mantle to produce induced electric currents in the same mantle, the one or more inductors being arranged near the radially innermost surface of the mantle.

Abstract: A Yankee drier including a cylindrical mantle to which two end heads are connected, on each of which a corresponding pin is arranged, wherein the cylindrical mantle has an external surface and an internal surface, and wherein the internal surface of the mantle in cooperation with the lateral heads delimits an internal chamber of the Yankee drier in which steam can be introduced. The internal surface of the mantle is at least partially provided with a surface protective coating, the surface protective coating protecting the internal surface of the mantle from corrosive and/or abrasive agents contained in the steam introduced into said chamber.

Abstract: 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.

Abstract: A Yankee drier including a cylindrical mantle to which two end heads are connected, on each of which a corresponding pin is arranged, wherein the cylindrical mantle has an external surface and an internal surface, and wherein the internal surface of the mantle in cooperation with the lateral heads delimits an internal chamber of the Yankee drier in which steam can be introduced. The internal surface of the mantle is at least partially provided with a surface protective coating, the surface protective coating protecting the internal surface of the mantle from corrosive and/or abrasive agents contained in the steam introduced into said chamber.

Abstract: 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.