Abstract: The corrugating roller (7; 9) for machines to produce corrugated cardboard, comprises: a hollow cylindrical body (7B; 9B), with an outer (7D; 9D) surface provided with corrugations (7C; 9C); a circuit for a heat-carrying fluid; and a pair of necks (7E, 7F; 9E, 9F), through at least a first (7E; 9E) of which said heat-carrying fluid is supplied. The body (7B) and the necks (7E, 7F) are produced in a single block machined by removal.

Abstract: A roll has a roll body having a central bore and a first end and a second end. Roll necks are flange-mounted to the first and second ends of the roll body, respectively, for supporting the roll body in bearings. At least one compensation weight is eccentrically arranged in the central bore. The at least one compensation weight is adjustable with regard to its mass, an angular position within the roll body, and/or a radial spacing relative to a central axis of the roll body. The at least one compensation weight is adjustable while the roll necks are flange-mounted on the first and second ends.

Abstract: A dead-shaft roller having a shaft and a roll with a fluid circulation passage therein, and at least two bearings support the roll on the shaft. A rotary union is positioned at least one end of the roll, possibly both. The rotary union has a rotatable sleeve and a non-rotating sleeve. The rotatable sleeve has a fluid conducting path therein, such that the fluid conducting path is in fluid communication with the fluid circulation passage in the roll. The non-rotating sleeve is positioned adjacent and internal to the rotatable sleeve. The non-rotating sleeve has a first fluid port therein such that the fluid conducting path is in fluid communication with the first fluid port at a first fluid transfer zone. At least two air bearings are present, mounted between the rotatable sleeve and the non-rotating sleeve, such that the air bearings are on opposite sides of the first fluid transfer zone.

Abstract: A compliant pressure roller (10) for creating uniform pressure at a nip comprises a stationary inner core (12). A plurality of shoes (14) is pivotally mounted to the stationary inner core. Dividers (16) create a plurality of annular chambers (18) wherein each of the shoes occupies one of the chambers. A non-Newtonian fluid (70) fills each of the chambers. A plurality of actuators is connected to at least one of the shoes. A thin, rotatable shell surrounds the plurality of chambers, shoes, and stationary inner core.

Abstract: A roller body for treating a web-shaped material, comprising a shell and profiles which are arranged on an inner circumferential area of the shell, distributed about a rotational axis of the roller body, and together with the shell form channels for a thermal treatment fluid which extend at least substantially axially The shell forms an outer wall and the profiles form side walls of the channels respectively The side walls are each connected to the shell by means of a connecting seam produced by a material fit; and the side walls of immediately adjacent profiles exhibit an inclination of less than 90° to the shell in their cross-section up to the connecting seam such that they point away from each other from the connecting seam outwards.

Abstract: A roll useful in fusing marking material to a print sheet includes a coating disposed on at least a portion of the inner surface thereof. A lamp disposed inside the roll supplies radiant energy to the inner surface. The coating changes its absorptivity (such as color) as desired, to obtain specific desired temperatures at different portions of the roll. The coating can be thermochromic, changing its absorptivity in response to local temperature; or electrochromic, changing its absorptivity in response to an external electrical stimulus.

Abstract: The invention relates to a casting roller (1), for a double-roller continuous casting machine, in particular for the casting of a steel strip, comprising a cylinder sleeve (2) which may rotate about a fixed axle (5). Intermediate rings (7b, 7c, 7d) rotating with the cylinder sleeve (2) are arranged between the cylinder sleeve (2) and the axle (5), which are provided with radial pressure means (9), acting on the cylinder sleeve (2). The above comprise a pressure chamber (10), pressurized with a fluid pressure medium and acting on a pressure ring (24) fixed to the inner wall of the cylinder sleeve (2), which may be deformed in the radial direction by inductive heating or radiated heat. The external profile of the casting roller (1) may be globally altered or local fine adjustments made by pressurizing the pressure chamber (10) with the pressure medium, or by heating the pressure ring (24).

Abstract: A roller-conveyor roll for the transport of furnace-heated metallic strip or a continuously cast steel strand has a shaft extending along an axis, a tubular shell coaxially surrounding the roller shaft and having a pair of axially spaced ends, and a respective insulating body at each of the shell ends between the respective shell and the shaft and angularly fixed to the shell and to the shaft for transmitting torque between the shaft and the shell ends. The body electrically and thermally insulates the shell from the shaft.

Abstract: A fixing apparatus and an image formation apparatus are disclosed. The fixing apparatus includes two or more heaters with temperature detecting function that generate heat with electric current and detect temperature; a heating unit that includes the heater with the temperature detecting function; a film, a surface of which slides on the heating unit; a thermal fixing unit that is heated by the heating unit through the film for fusing a toner image that is yet-to-be fixed on a recording paper at a predetermined fixing temperature; a pressurization roller for pressing the recording paper to the thermal fixing unit; and a temperature control unit for controlling the temperature of the heater to be a predetermined temperature based on the temperature of the heater detected by the heater with the temperature detecting function.

Abstract: Apparatus for the forming of a strip, formable at increased temperature, in particular of a strip consisting of thermoplastic, in a continuous run on the surface of a rotating drum which is to be heated and/or to be cooled in predetermined stationary regions. In order to reduce the energy losses due to the heating and cooling alternation, the thin-walled drum is mounted on a carrier body which can be heated or cooled in the respective regions and is heat-exchangeable with the drum surface at least in these regions.

Abstract: A driving apparatus for rollers of roller hearth furnaces includes a bearing beam module having a mounting plate for fixing to a side wall of the roller hearth furnace. The mounting plate has at least one passage opening for receiving a drive journal for driving one of the rollers. At least one mitre gear unit fixed to the mounting plate is provided and its angle drive is connected by the drive journal to the roller to be driven. At least one first and one second rotary coupling piece are accessible from the outsides of a casing of the mitre gear unit and are provided for connecting the angle drive to two further mitre gear units for driving in each case one adjacent roller.

Abstract: A printing machine includes a roller which is hollow and through which a temperature control liquid flows. The roller is mounted in roller fittings constructed as quick-change devices or quick-acting closures, in such a way that the roller can be quickly removed from the roller fittings and the printing machine and quickly inserted into the roller fittings and the printing machine again, by the operator of the printing machine.

Abstract: In a heat roller of a fixing apparatus according to an embodiment of the present invention, a sleeve is slidable with respect to a supporting roller. Flanges that regulate the sleeve have smooth surfaces, are arranged at gaps apart from a foamed rubber layer of the supporting roller, and freely rotate with respect to the supporting roller. Edges at both ends of the foamed rubber layer of the supporting roller are formed in an R shape and set shorter than the length of a body of the press roller. The sleeve has markings for detecting a state of the heat roller.

Abstract: In a cooling roller which cools a molten resin strip discharged from a die, a temperature of a place where a resin comes into contact with the cooling roller, and that of a place where the resin is detached from the cooling roller are individually controlled. The cooling roller comprises: a non-rotatably disposed inner cylinder 11; a rotatable outer cylinder 3 disposed coaxially with the inner cylinder 11; an annular medium channel 13 formed by an outer peripheral surface of the inner cylinder 11 and an inner peripheral surface of the outer cylinder 3; a plurality of small medium channels 73, 75 divided from the medium channel 13 by a plurality of partition members 69, 71; a plurality of medium inflow ports 77, 79 disposed in a wall portion of the inner cylinder along an axis of the inner cylinder 11 so as to communicate with the respective small medium channels 73, 75; and a plurality of slit-like medium outflow ports 81, 83.

Abstract: A cooling structure for a motorized roller is provided, which has a simple construction, and is capable of effectively reducing temperature increases inside the apparatus. Such a motorized roller includes a motor and a reducer which are disposed inside a roller body. Rotations of the motor are reduced by the reducer and transmitted to the roller body, and a reaction force to the driving force of the roller body is able to be received, via casings that house the motor and the reducer, by an external member that fixes the casings so that rotations of the casings are prevented. In this cooling mechanism for the motorized roller, an air passage for guiding air in an axial direction from one end of the reducer to the other end is formed in an outer peripheral surface of the casing for the reducer.

Abstract: The present technique, in accordance with one exemplary embodiment, relates to a motorized pulley. The exemplary motorized pulley includes a rim or housing inside of which are disposed an electric motor and a gear assembly, which is configured to transfer torque of the electric motor to the housing. Thus, during operation of the motor, the exemplary pulley rotates the housing in relation to a support structure to which the motorized pulley is mounted. To improve the dissipation of heat generated during operation of the motor, the motor is thermally coupled to the frame. Additionally, the rotor shaft of the exemplary motorized pulley extends into the external environment surrounding the pulley, thereby facilitating the operation of a machine element located externally with respect to the pulley via the electric motor disposed within the pulley.

Abstract: A roller conveyor roller for furnace-heated metal strip has a roller shell journaled on a shaft with bearings providing thermal and electrical insulation of the shell from the shaft. The shell can be divided into shell segments each of which can have two bearings. One of these bearings can be a conical bearing with conical rings and with rollers which are thermally and electrically insulating.

Abstract: An apparatus and method for stabilizing a fuser in an imaging apparatus. The apparatus includes a hub having a body. The body comprises an outside diameter configured to be at least partially disposed inside an end of a fuser core. The apparatus also includes an elastomeric collar having an inside diameter, wherein the inside diameter is at least partially disposed over the outside diameter of the hub.

Abstract: A method of treating a fuser member surface to extend the life thereof includes applying to the fuser member surface an ethylene diamine tetraacetate. In addition, the fuser member may be subjected to a sonic treatment during the application of the ethylene diamine traacetrate in order to remove additional materials therefrom that are resistant to removal by the ethylene diamine traacetate.

Abstract: The present invention relates to a roller for the thermomechanical treatment of a web-shaped medium, the roller including: a roller body; axial bores for a thermal treatment fluid which are incorporated in roller body near to an outer surface of the roller body and into which the thermal treatment fluid flows on an inflow side; inflow zones, formed on the inflow side in the upstream ends of the bores or in feed channels through which the thermal treatment fluid flows into the bores; and directing or guiding portions provided in the inflow zones, which transfer a rotational movement of the roller onto the thermal treatment fluid, the directing portions at least substantially completely transfer the rotational movement onto the thermal treatment fluid and in this way suppress a relative swirl between the bores and the thermal treatment fluid, while still in the inflow zones.

Abstract: A resin composition having a high adhesion between a resin layer and a metallic layer as well as an excellent durability, a process for producing the same, and an electrophotographic fixing member are provided. In the resin composition, a metallic layer is provided on a surface of a resin layer having a porous structure at least on the surface.

Abstract: A fixing apparatus including a pair of rotary members forming a nip for pinching and conveying a recording material, and a rotatable heat supplying member in contact with at least either of the rotary members and supplying the rotary member with heat. An image forming on the pinched and conveyed recording material is fixed thereto by heat, and the rotary member receiving heat from the heat supplying member has different external diameters along the longitudinal direction and the heat supplying member has different plural external diameters so as to follow the shape of the rotary member.

Abstract: The invention relates to the use of roller fusing in printing. In particular, the invention relates to the use of heated rollers. According to one aspect of the invention, a fixing process and system for use with a printing apparatus is provided wherein a flow of heat exchange medium through a first heating zone within a fixing roller and a second heating zone within the fixing roller is controlled, and marking material is fixed to a receiver with the fixing roller. According to another aspect of the invention, a fixing process and system for use with a printing apparatus is provided wherein marking material is fixed to a receiver with a fixing roller and wherein a heat exchange medium is flowed through a first heating zone within the fixing roller, the first heating zone being biased toward the receiver.

Abstract: A thermal transfer roller includes a first end chamber in communication with a source of thermal transfer fluid, an annulus for receiving the fluid and facilitating thermal transfer to a substrate, and a second end chamber in communication with the annulus for receiving the spent thermal transfer fluid. At least one end chamber includes a plurality of channels, each channel having a wider end approaching the annulus and a narrower end away from the annulus. Preferably, the channels are present in both end chambers. The channels substantially reduce angular flow of the fluid caused by rotation of the roller, and help stabilize and maintain desired fluid volumes flowing through the roller as its velocity is increased.

Abstract: A fixing apparatus including a pair of rotary members forming a nip for pinching and conveying a recording material, and a rotatable heat supplying member in contact with at least either of the rotary members and supplying the rotary member with heat. An image forming on the pinched and conveyed recording material is fixed thereto by heat, and the rotary member receiving heat from the heat supplying member has different external diameters along the longitudinal direction and the heat supplying member has different plural external diameters so as to follow the shape of the rotary member.

Abstract: A printing apparatus includes a drum having a peripheral surface having passageways therein. A screen having apertures therein is placed over the peripheral surface of the drum.

Abstract: A method for tightening an embossing plate ring on a chuck of a rotary embossing press, wherein the chuck is intended to be connected to a heater for leading the embossing plate ring to a working temperature. Between the chuck and the embossing plate ring is a split transmission ring made of a material having an expansion coefficient which is higher than that of materials used for the chuck and the embossing plate ring to cause the blocking of the embossing plate ring onto the chuck at the working temperature of the embossing plate ring.

Abstract: The caster roll (10) is used in the manufacture of metal plate, strip, sheet, or foil. The caster roll (10) includes a cylindrical roll core (12) and at least one metal overlay (14) formed on the roll core (12). The at least one metal overlay (14) defines a plurality of cooling passages (34) for conducting a cooling medium through the at least one metal overlay (14) to cool the roll (10) during use. Additional metal overlays (16) may be formed on top of the at least one metal overlay. (14). The cooling passages (34) may also be formed in the roll core (12).

Abstract: A heating device is used in an image forming apparatus. In the heating device, a resin layer is provided between a core metal of a fixing roller and a ball bearing. The resin layer is adhered to the core metal so as to obviate a noise, caused by a rubbing of the resin layer against a ball bearing, which is otherwise produced when the resin layer is provided as a separate part. Between the resin layer and the ball bearing, a material of the resin layer is selected and the resin layer is configured to have a rough surface with a coefficient of dynamic friction of the surface of the resin which is a predetermined value, and thereby minimizing the production of the noise.

Abstract: The heated roller of a heating device for warming a film strip comprising thermoplastic plastic is embodied to be manufactured less expensively, including its coating, even with a relatively large diameter. Moreover, it is lighter and can be brought to a more uniform temperature. This is accomplished in that the heated roller comprises a plurality individual segments that can be produced, including all holes, webs and grooves, from an aluminum alloy in an extrusion-molding process. A special clamping strip connects adjacent individual segments together to form the roller.

Abstract: A heat transfer roll for producing sheet material, particularly material having a cross-section whose thickness varies across the width of a sheet being formed, includes a journal on which the roll is rotatably supported, and at least two cooling channels at the surface of the roll that can be supplied with various fluids at various flow rates and temperatures. Fluid in the first and second channels flows at predetermined longitudinal positions at the roll surface. The first channel includes cylindrical spiral portions and the second channel includes a circular cylindrical channel located between the spiral portions. A diverter provides hydraulic flow continuity across the second flow channel to first and second portions of the first flow channel. Risers carry fluid radially outward to the flow channels at the outer surface of the roll.

Abstract: A printing unit cylinder is subject to only low deformation in the event of operationally induced increases in the temperature of the printing unit. At least the barrel of the body of the printing unit cylinder is produced from a metallic material with a linear coefficient of expansion of ?<5×10?6K?1 in a temperature range of from about 20° to about 60°.

Abstract: An apparatus for aiding the removal of an adhesively coated web disposed upon the surface of a rotating roll is disclosed. The apparatus includes a movable belt disposed about at least a portion of the surface of the roll and defining a contact region. The belt has a temperature that is different from the temperature of the roll so that as the adhesively coated web passes between the surface of the roll and the belt within the contact region, the web is cooled.

Abstract: A mounting cylinder (1) for mounting cylindrical embossing tools for embossing rolls for embossing diffraction gratings or holograms includes a mounting shell (3) for mounting the embossing tool and a fixing device for fixing the mounting shell (3) on a shaft (2) and a tempering device for tempering the mounting shell. According to one variant, the embossing tool is expanded by compressed air in order to be slipped onto the mounting shell or removed therefrom, a compressed air channel system (8) with radial compressed air discharge openings (11) extending axially and/or tangentially within the mounting shell (3). According to another variant, the mounting shell is expanded mechanically in order to fix a embossing tool slipped over the mounting shell and simultaneously fix the mounting shell (3) on the shaft (2).

Abstract: A cylinder, such as a forme or transfer cylinder of a printing machine has at least one clamping conduit in an outer cylinder body. This clamping conduit extends axially in the cylinder body and has a radial depth. A tempering medium can flow through the cylinder. The cylinder outer body has an inner surface which is generally circular and which cooperates with the tempering medium.

Abstract: A method and apparatus for zone controlling the temperature of a rotating roll. The apparatus includes a roll having a surface at a first temperature and a belt disposed adjacent at least a portion of the surface of the roll. The belt contacts the roll surface in a contact region and has a second temperature that is different from the first temperature of the roll such that the belt affects a temperature change in at least a portion of the surface of the roll in the contact region as the roll is rotated.

Abstract: A method and apparatus for fusing toner to a laser printed page. The apparatus includes a photosensitive drum, a laser optic system for tracing an image on the photosensitive drum, a toner supply electrically charged opposite the image traced on the photosensitive drum, and an ultraviolet light source for imparting energy to the toner to fuse the toner to the page. The apparatus facilitates faster print speeds and lower energy consumption than conventional laser printers that require heating elements to fuse the toner to the page.

Abstract: The object of the invention is a thermoroll for a paper/board machine or a finishing machine, the said thermoroll comprising a shell (2; 4, 5) of metallic, ceramic or composite material, the shell incorporating ducts (3; 9) for passing a heating medium from one axial end of the shell to its opposite end. The shell is made by means of casting or powder metallurgical methods, and the ducts (3; 9) are formed in the matrix material of the shell which is of metal and/or ceramic, directly in connection with manufacture. A further object of the invention is a method for manufacturing a thermoroll.

Abstract: A cylinder, such as an inking roller for a printing press, includes a base body and an outer body. A tempering medium can flow in a gap between the base body and the outer body. The base body has a circumference which includes grooves that define a multiple helical channel for the tempering medium. The outer body is supported by the base body of the cylinder.

Abstract: The invention relates to an apparatus for supporting material to be treated in continuously operated thermal treatment furnaces, where the supporting of the material is realized by means of support elements installed externally to the thermal treatment furnace, in the vicinity of the orifice of the furnace, said apparatus comprising at least two support elements that are installed movably, so that the mutual positions of the support elements can be adjusted by means of a drive arrangement of the support apparatus. According to the invention, in connection with the housing element used for supporting of the support elements, there is installed at least one gas flow control element which enables the flowing of the gas used for treating the material between the support element and the control element, said control element also constituting part of the sealing of the thermal treatment furnace.

Abstract: A roller for thermally treating web-shaped media, comprising a roller body which is rotatable about its central longitudinal axis, and peripheral bores introduced in axial parallel in the roller body, for conveying a heating medium, wherein other axially parallel balancing bores are formed in the roller body in addition to the peripheral bores for the heating medium, said balancing bores running from an end face of the roller body towards the center of the roller body.

Abstract: A rotatable roller has a roller body with channels for guiding a medium through the roller body for controlling the temperature of the roller body. At least one of the channels has a separating member separating the at least one channel into separate channel portions such that media having different properties are separately guided through the at least one channel. The separating member is helically shaped.

Abstract: A heating roller includes a magnetic flux generation mechanism provided in a plurality of layers coaxially around the axis of a roller in the roller capable of being supported rotatably, and a control device capable of independently controlling the layers of the magnetic flux generation mechanism.

Abstract: A roller heating system for a laminating machine comprises a first rolling shaft and a second rolling shaft, wherein the first rolling shaft and the second rolling shaft are parallel with each other, and a heating mechanism is mounted on the respective surface of the two rolling shafts. Then, a heat conduction layer wraps up the respective surface of the above-mentioned rolling shafts as well as the heating mechanisms. When the lamination proceeds, the heat mechanisms firstly heat the heat conduction layers to a working temperature and at the same time, the first and second rolling shafts respectively rotate in a predetermined direction, and then an article covered with laminating plastic films is fed into the roller heating system. The heat conduction layers heat the laminating plastic films to melt the fusion gum of the inner surfaces of the laminating plastic films, and subsequently the laminating plastic films are forced by the compression of the first and second rolling shafts to adhere to the article.

Abstract: A structurally improved fusing roller assembly based on the heat pipe principle is provided. The fusing roller assembly includes a fusing roller and a heat pipe coaxially mounted inside the fusing roller. A resistance heater is helically wound around the exterior cylindrical surface of the heat pipe, and rests between the inner cylindrical surface of the fusing roller and the exterior cylindrical surface of the heat pipe. The heat pipe is hermetically sealed with a quantity of a working fluid contained inside. The surface of fusing roller can be instantaneously heated up to a target fusing temperature. The fusing roller assembly can be heated up to a target fusing temperature within a shorter period of time without need for warm-up and stand-by period, so that power consumption decreases.

Abstract: The caster roll (10) is used in the manufacture of metal plate, strip, sheet, or foil. The caster roll (10) includes a cylindrical roll core (12) and at least one metal overlay (14) formed on the roll core (12). The at least one metal overlay (14) defines a plurality of cooling passages (34) for conducting a cooling medium through the at least one metal overlay (14) to cool the roll (10) during use. Additional metal overlays (16) may be formed on top of the at least one metal overlay. (14). The cooling passages (34) may also be formed in the roll core (12).

Abstract: The present invention relates to a roller for the thermomechanical treatment of a web-shaped medium, said roller including: a roller body; axial bores for a thermal treatment fluid which are incorporated in said roller body near to an outer surface of the roller body and into which said thermal treatment fluid flows on an inflow side; inflow zones, formed on said inflow side in the upstream ends of said bores or in feed channels through which the thermal treatment fluid flows into the bores; and directing or guiding means provided in said inflow zones, which transfer a rotational movement of said roller onto the thermal treatment fluid, wherein said directing means at least substantially completely transfer said rotational movement onto the thermal treatment fluid and in this way suppress a relative channel swirl between the bores and the thermal treatment fluid, while still in the inflow zones.

Abstract: An insulating roll comprising: a metal conduit having an outer peripheral portion; a plurality of discs having outer peripheries and preferably fabricated from an inorganic material positioned axially on and around the metal conduit; a tubular shell having an inner surface about and spaced apart from said outer peripheries; metallic foils extending between each or a plurality of said discs from said outer peripheral portion to and beyond said outer peripheries to the inner surface of said tubular shell, said metallic foils being in interference or frictional contact with said inner surface. A novel method for attaching the tubular shell to the conduit to simplify removal and replacement thereof is also described.

Abstract: A method and apparatus for fusing toner to a laser printed page. The apparatus includes a photosensitive drum, a laser optic system for tracing an image on the photosensitive drum, a toner supply electrically charged opposite the image traced on the photosensitive drum, and an ultraviolet light source for imparting energy to the toner to fuse the toner to the page. The apparatus facilitates faster print speeds and lower energy consumption than conventional laser printers that require heating elements to fuse the toner to the page.

Abstract: A thermoroll for a paper/board machine or a finishing machine, the thermoroll having a shell of metallic, ceramic or composite material, and the shell having ducts for passing a heating medium from one axial end of the thermoroll to the other axial end of the thermoroll. The shell is made by casting or by powder metallurgical methods, and the ducts are formed in the matrix material of the shell which is metal and/or ceramic.