A fixing rotating member comprising: a cylindrical base member comprising at least a resin; an electro-conductive layer on the base member; and a resinous layer on a surface of the electro-conductive layer, the surface being opposed to a surface facing the base member, the electro-conductive layer extending in a circumferential direction of an outer circumferential surface of the base member, the electro-conductive layer comprising silver, the electro-conductive layer having a volume resistivity of 1.0?10.sup.?8 to 8.0?10.sup.?8 ?.Math.m, and the electroconductive layer having a compressive elastic modulus of 8 to 30 GPa, the elastic modulus being measured by contacting an indenter with a first surface of the electroconductive layer opposite to a surface facing the base member, and the elastic modulus being an average value of elastic moduli of a thickness region of 0.1 to 0.2 ?m from the first surface of the electroconductive layer.

An electrically heated aerosol-generating system is provided, including an aerosol-generating device and a cartridge configured to be used with the device, the device including a device housing configured to engage at least a portion of the cartridge; an inductor coil positioned around or adjacent to the cavity; and a power supply connected to the inductor coil and configured to provide a high frequency oscillating current to the inductor coil; the cartridge including a cartridge housing configured to engage the device housing and containing an aerosol-forming substrate, the housing having an external surface surrounding the aerosol-forming substrate, at least a portion of the external surface being formed by a fluid-permeable susceptor element.

An electrically heated aerosol-generating system is provided, including an aerosol-generating device and a cartridge configured to be used with the device, the device including a device housing configured to engage at least a portion of the cartridge; an inductor coil positioned around or adjacent to the cavity; and a power supply connected to the inductor coil and configured to provide a high frequency oscillating current to the inductor coil; the cartridge including a cartridge housing configured to engage the device housing and containing an aerosol-forming substrate, the housing having an external surface surrounding the aerosol-forming substrate, at least a portion of the external surface being formed by a fluid-permeable susceptor element.

An inductor device, including: blocks of electrically conducting material which are electrically isolated from each other, a block of electrically insulating material supporting respective induction coils, an integrated shower and a hydraulic circuit partly obtained within the blocks of electrical conducting material and including: a first branch for feeding a cooling fluid to the induction coils which hydraulically connects all the induction coils in parallel and mechanically in sequence to each other. A second branch hydraulically connects only a first induction coil with a first return outlet of the hydraulic circuit. A third branch for each induction coil in addition to the first, each third branch including a second return outlet separated from the first outlet and being hydraulically connected with only one single induction coil other than the first.

An inductor device, including: blocks of electrically conducting material which are electrically isolated from each other, a block of electrically insulating material supporting respective induction coils, an integrated shower and a hydraulic circuit partly obtained within the blocks of electrical conducting material and including: a first branch for feeding a cooling fluid to the induction coils which hydraulically connects all the induction coils in parallel and mechanically in sequence to each other. A second branch hydraulically connects only a first induction coil with a first return outlet of the hydraulic circuit. A third branch for each induction coil in addition to the first, each third branch including a second return outlet separated from the first outlet and being hydraulically connected with only one single induction coil other than the first.

A method of sealing a peelable lid (2) to a flange (4) provided within a metal can body (1) which involves inserting an induction coil (6) into the can body to primarily heat the sealing surface (5) of the flange, while keeping the exterior wall of the can relatively cool to avoid tin reflow and decoration degradation of the exterior wall. The induction coil is subsequently removed from the can body and a peelable lid applied to the flange, whereby residual heat in the flange aids the sealing of the lid to the flange, e.g. by allowing activation of a bonding material.

A method of sealing a peelable lid (2) to a flange (4) provided within a metal can body (1) which involves inserting an induction coil (6) into the can body to primarily heat the sealing surface (5) of the flange, while keeping the exterior wall of the can relatively cool to avoid tin reflow and decoration degradation of the exterior wall. The induction coil is subsequently removed from the can body and a peelable lid applied to the flange, whereby residual heat in the flange aids the sealing of the lid to the flange, e.g. by allowing activation of a bonding material.

To heat a workpiece having a recess portion provided along a longitudinal axis of the workpiece, the workpiece is inserted into an induction heating coil, and the induction heating coil or the workpiece is along an axial direction of the workpiece. The induction heating coil has a conductor configured to surround the workpiece around the axis of the workpiece. The conductor has a protruding portion protruding inwardly to face the recess portion of the workpiece.

To heat a workpiece having a recess portion provided along a longitudinal axis of the workpiece, the workpiece is inserted into an induction heating coil, and the induction heating coil or the workpiece is along an axial direction of the workpiece. The induction heating coil has a conductor configured to surround the workpiece around the axis of the workpiece. The conductor has a protruding portion protruding inwardly to face the recess portion of the workpiece.

There is described an aerosol-forming substrate for use in combination with an inductive heating device. The aerosol-forming substrate comprises a solid material which is capable of releasing volatile compounds that can form an aerosol upon heating of the aerosol-forming substrate and at least a first susceptor material for heating the aerosol-forming substrate. The at least first susceptor material is arranged in thermal proximity of the solid material. The aerosol-forming substrate further comprises at least a second susceptor material which has a second Curie-temperature which is lower than a first Curie-temperature of the first susceptor material. The second Curie-temperature of the second susceptor material corresponds to a predefined maximum heating temperature of the first susceptor material. There is also described an aerosol-delivery system.