Abstract: Apparatus and method are provided for inductively heat treating a circular surface of annular workpieces where at least one inductor pair is used to perform a scan induction heat treatment of the circular surface. Controlled movement of the inductors and application of quenchant is provided particularly at the initial and final heat treatment locations on the circular surface to enhance metallurgical uniformity of the annular workpiece at these locations. In combination with controlled movement of the inductors, a simultaneous power-frequency control scheme can be applied to the inductors during the heat treatment process.

Abstract: Improved induction heating of a rolling bearing without the risk of damaging or blocking the bearing is achieved by controlling the heating cycle as a function of the temperature difference between the inner and outer bearing rings and/or dividing the heating cycle into different portions using different power combinations of at least two induction coils.

Abstract: An electromagnetic induction heating unit is configured to heat at least one of a refrigerant tube and a member in thermal contact with a refrigerant that flows through the refrigerant tube. The electromagnetic induction heating unit includes a coil and a magnetic member. The coil is disposed in a vicinity of the refrigerant tube. The magnetic member includes a magnetic material. The magnetic member is disposed on at least one of a first side of the coil along a direction in which the refrigerant tube extends, a second side opposite from the first side with respect to the coil, and an outside of the coil that is opposite to an inside of the coil. The inside of the coil is a refrigerant tube side of the coil.

Abstract: A heating assembly includes two permanent magnets arranged in a spaced manner to define a path therebetween for passage of a plurality of stainless steel nails, and an inductive coil wound around an extending direction of the path in such a way that the inductive coil has a number of loops arranged along two opposite sides of the permanent magnets. Thus, when the stainless steel nails move through the path, the inductive coil can receive a low-intensity operation current to heat the stainless steel nails to a predetermined temperature.

Abstract: Embodiments of the invention provide a system and method for induction heating a helical rotor of a progressing cavity pump in order to reduce the surface roughness of the rotor. In order to heat the rotor most evenly, it is desired to space the coil as closely around the rotor as possible. The invention provides a mechanism for threading the helical rotor through an induction coil having an interior diameter which is less than the major diameter of the rotor. The induction coil may include one loop and overlapping ends. The rotor to be heated is rotated about its longitudinal axis and advanced axially through the coil as it rotates. The axial speed and rotational speed are synchronized so that the rotor moves one pitch through the coil for each complete rotation.

Abstract: The invention provides products of manufacture, e.g., biomaterials and implants, for cartilage maintenance and/or formation in-vivo, in-vitro, and ex-vivo, using nanotechnology, e.g., using nanotube, nanowire, nanopillar and/or nanodepots configured on surface structures of the products of manufacture.

Abstract: This invention relates to a two or three-stage apparatus and method of use to produce high purity silicon, such as for use in solar panels and/or photovoltaics. The device of this invention includes a melting apparatus with a delivery device, a holding apparatus with a tipping or transfer mechanism, and at least one solidification apparatus for receiving a molten feedstock. The optimized designs of individual apparatuses function efficiently in combination to produce high purity silicon.

Abstract: An attenuating adaptor is proposed in the form of a sleeve (23) which is composed of non-ferromagnetic metal for insertion radially during operation between a holding section (11) (which is provided with a central holding opening (15) for holding a tool shank with a press fit) of a tool holder (1) and an induction coil arrangement (19) (which concentrically surrounds the holding section (11) in order to widen it thermally) of a shrinkage appliance (5) which feeds alternating current to the induction coil arrangement (19). The sleeve (23) can be provided with slots which pass through its wall and whose number, axial length and circumferential width influence the attenuating characteristics of the sleeve (23). Sleeves (23) of different sizes are provided for a set of different tool holders (1), and their attenuating characteristics are chosen such that all of the tool holders (1) in this set can be shrunk using one and the same setting of the shrinkage appliance (5).

Abstract: There is disclosed a method and system for demagnetizing an object. The method includes the step of applying a substantially uniform electromagnetic field to a magnetized object under condition to substantially demagnetize said object.

Abstract: A heating apparatus for heating a pipe prior to performing a welding operation, an interpass welding operation, or a hydrogen bake-out operation is provided. The heating apparatus comprises at least one heating collar placed on one side of a pipe weld joint and a control mechanism for controlling the thermal energy transferred from the heating apparatus to the pipe.

Abstract: A device for producing a silicon single crystal by remelting granules has a rotating plate of silicon having a central opening and having a silicon tubular extension which encloses the opening and extends below the plate; a first induction heating coil above the plate for melting granules; and a second induction heating coil below the plate for crystallizing the molten granules, wherein the second induction heating coil has, on its side lying opposite the silicon plate, a lower layer composed of a magnetically permeable material and an upper layer in which there is at least one cooling channel for conducting a coolant.

Abstract: The present invention discloses an inductive heater for a dental technique and a method for operating the same. The inductive heater for a dental technique according to the present invention comprises: a bobbin with a chisel insertion hole connected to inner space at one end and a jointing unit protruded outwardly at the other end; an induction coil wound in the bobbin; an upper case comprising a mounting hole to which the bobbin is inserted and a bobbin fixing protrusion which is bolt-jointed to the jointing unit of the bobbin inserted inwardly through the mounting hole; and a lower case which is joined to the lower part of the upper case. The inductive heater for a dental technique significantly improves productivity of assembly due to a simple jointing structure of the bobbin. Also, the inductive heater is devised for worker's health and work environment by rapidly discharging wax vapor.

Abstract: The invention relates to a device for hardening the surface F of a cylindrical workpiece section Z which has an undercut H1, H2, the device having an inductor 2 which has a heating conductor branch 26 extending in the circumferential direction of the surface F to be hardened for inductive heating of the section Z, a control instrument 35, 36 for pressing the heating conductor branch 26 into the undercut H1, H2, and an energy supply 3 which electrically supplies the inductor 2.

Abstract: Hot melt adhesive pellets are melted and pressure pumped in a controlled application pattern on the substrate at the application site. The high frequency power supply, induction heated melting susceptor, pressure pump, and pattern control electronics are all contained in a single unit within adhesive projection distance.

Abstract: An embodiment of the present invention is a technique to package a device. Heat is localized on a die having bumps on a package substrate using a first induction heater operating at a first frequency. Heat is localized on at least an integrated heat spreader (IHS), a thermal interface material (TIM), an underfill, and a sealant on the die using a second induction heater operating at a second frequency.

Abstract: An apparatus and a method of using induction heating to solder an item of hardware to a glass substrate, wherein the glass substrate; preferably, is a vehicle window, the substrate and bonded item(s) of hardware forming a vehicle window assembly.

Abstract: In a method of heating a stator, a first induction coil is disposed near one of the coil ends of the stator, and a second induction coil is disposed near the other, and the first induction coil and the second induction coil are electrically energized, whereby the induction-heating of the stator is performed as a pre-heating step prior to the resin molding step of the coil ends. According to this method, a first movement unit for moving the first induction coil and a second movement unit for moving the second induction coil are provided, the first induction coil is moved by the first movement unit and the second induction coil is moved by the second movement unit for induction-heating of the stator.

Abstract: Preform heating device able to perform a precise and strongly localised heating of the preforms before the blow moulding phase of the plastic bottle or container production process. This device has an innovative construction configuration, thus allowing high efficiency thanks to the significant reduction in the energy required to reach the project temperatures in the heating element in a very rapid way. The inductor does not heat the preform directly, but takes to the temperature set, through the concentration of the magnetic flow, generated by the passage of current, a conductor material of a particular form that, by irradiation and convection, in turn heats the PET.

Abstract: The present application relates to an apparatus for and a method of forge welding elongate articles (1, 2), such as tubes, together. In addition to electrode (12, 13) assemblies (9) for heating the article (1, 2) ends with high frequency resistive heating, the apparatus includes a coil (3) for induction heating the articles (1, 2) before or after welding, as well as means for cooling the welding seam.

Abstract: Induction heatable clothing items such as footwear (22) and apparel (160) are provided which include a clothing body having an induction heatable element (36, 108, 112, 114, 116) and preferably having heat retentive material containing phase change material, wherein the element (36, 108, 112, 114, 116) is operable to be heated when subjected to an alternating magnetic field. The clothing items (22, 160) are heated using induction heaters (26, 84). In preferred forms, wireless temperature sensing is used to control heating of the items (22, 160). To this end, the heating elements (36, 108, 112, 114, 116) may be provided with RFID tag/temperature sensor assemblies (58, 60, 110), and the induction heaters (26, 84) are equipped with correlated RFID reader/writer devices (80). Alternately, microwire temperature sensors (120) may be used with the induction heaters (26, 84) having microwire detectors. In other embodiments, temperature monitoring is achieved using impedance detection feedback control.

Abstract: A resonator device including an induction coil, a conductive member positioned adjacent the induction coil, and a dielectric layer between at least a portion of the induction coil and the conductive member to form a capacitor structure. In one embodiment, the conductive member can be a stent. In an alternative embodiment, the conductive member can be a conductive film. In an additional embodiment, the dielectric layer can have a dielectric constant that changes in a predetermined fashion between at least a portion of the induction coil and the conductive member to allow for a uniform current distribution in the resonator device. The dielectric layer can also include a flexible elongate body.

Abstract: A device and method for induction hardening rolling tracks of thrust blocks of bearings, according to a required hardening profile. At least two inductors arranged in tandem are used within a track to be hardened, at a predetermined distance from a surface of the track and the thrust block is rotated with respect to the inductors, so as to make them cover the entire track, with a complete 360° turn; the inductors, at least one first pre-heating inductor and one at least heating inductor, are shaped so as to generate a first and a second magnetic fields, respectively, both having flux lines which are perpendicular to each other, and one of the two inductors is mounted on an orientable head so as to be able to arrange the two inductors oriented according to the curvature of the track.

Abstract: Heating systems and methods for inductive heating or a combination of resistive and inductive heating. A heater coil is inductively coupled to an article and a current signal is supplied to the heater coil. The heater coil generates a magnetic flux, based on the applied current signal, for inductively heating the article. Current pulses of a certain profile are used to enhance the rate, intensity and/or power of inductive heating delivered by the heating element or coil and/or to enhance the lifetime or reduce the cost of the inductive heating system.

Abstract: Apparatus and method are provided for induction heating of one or more components of a complex-shaped workpiece. The component is positioned within an opening formed by opposing pairs of arcuate coil structures formed in opposing inductor segments. One inductor segment is formed from electrically isolated inner and outer active inductor segments connected to one or more power supplies, while the other inductor segment is formed from electrically isolated inner and outer passive inductor segments that are magnetically coupled with respective inner and outer active inductor segments. Changing the output electrical parameters of the one or more power supplies controls the induction hardening along the transverse width of the workpiece with optional flux concentrators between opposing pairs of arcuate coil structures.

Abstract: An apparatus and method for altering characteristics, such as can include structural, magnetic, electrical, optical or acoustical characteristics, of an electrically-conductive workpiece utilizes a magnetic field within which the workpiece is positionable and schemes for thermally treating the workpiece by heating or cooling techniques in conjunction with the generated magnetic field so that the characteristics of the workpiece are effected by both the generated magnetic field and the thermal treatment of the workpiece.

Abstract: The present invention relates to a device for tensioning or de-tensioning tools, having a tool shaft in a tool chuck which has a sheath section open on the free end thereof and which is made of electrically conductive material, for receiving the tool shaft in a friction connection, having an induction coil which surrounds the sheath section of the tool chuck, to which preferably high-frequency alternating current can be applied, and which is designed as a ring or cylinder coil, wherein the device has at least one channel running between the inner peripheral surface of the induction coil and the sheath section of the tool chuck, through which flows a cooling agent which cools the sheath section of the tool chuck.

Abstract: The invention relates to a device for curing a plastic material, in particular a sealing compound and/or a filling compound for tolerance adjustment or gap filling, respectively, wherein the plastic material is at least partly inserted in a gap area between two components, and wherein at least one of the components is made of a fiber reinforced plastic material, in particular of a carbon fiber reinforced epoxy resin. According to the invention the device is provided with at least one electromagnetic inductor for a locally defined heating of the gap area and for curing the plastic material arranged in the gap area. Due to the electromagnetic inductor which might be a linear inductor or a circular inductor a contact-less and fast curing of the plastic material is possible.

Abstract: Apparatus and method for inductive heating of a material located in a channel, to modify the state of the material between flowable and nonflowable states. An internal inductive heating assembly is disposed in the material in the channel, and a signal is supplied to the assembly to generate a magnetic flux in at least one of the assembly and the material, the magnetic flux generating inductive heating of the assembly and/or the material. The signal is adjusted to produce a desired rate of temperature cycling of the material in the channel which includes modifying the state of the material between flowable and nonflowable states. In one embodiment, the heating assembly includes an interior coil, an exterior sheath inductively coupled to the coil, a dielectric material disposed between the coil and sheath, a flux concentrator, and a conductor for supplying a signal to the coil to generate the magnetic flux.

Abstract: A coil system for inductively heating a superconducting magnet in order to provide an internal energy dump by uniformly quenching a high performance superconducting magnet. The quench-inducing system uses AC magnetic fields that require negligible reactive power. The system is especially suited for inducing a relatively uniform quench in dry superconducting magnets.

Abstract: Process for heating a plastic by means of at least one source of electromagnetic radiation, characterized in that the electromagnetic radiation is emitted in the infrared at a wavelength or in a wavelength spectrum contained in one of the following ranges: 1110-1160 nm; 1390-1450 nm; 1610-1650 nm; 1675-1700 nm; 18802100 nm; 2170-2230 nm.

Abstract: An apparatus and method of manufacturing a crystal grower is disclosed. The crystal growing apparatus includes a receptacle constructed to receive a material selected to grow a crystal and an induction heater constructed to heat the material, with the induction heater comprising a Litz coil and a hose constructed to receive the Litz coil therein. The hose further comprises an inner liner formed of an electrically non-conductive material, a reinforcement layer surrounding the inner liner to provide structural reinforcement thereto, and an outer liner applied about the reinforcement layer to form an exterior of the hose.

Abstract: A heating apparatus comprising an energetic nanolaminate film that produces heat when initiated, a power source that provides an electric current, and a control that initiates the energetic nanolaminate film by directing the electric current to the energetic nanolaminate film and joule heating the energetic nanolaminate film to an initiation temperature. Also a method of heating comprising providing an energetic nanolaminate film that produces heat when initiated, and initiating the energetic nanolaminate film by directing an electric current to the energetic nanolaminate film and joule heating the energetic nanolaminate film to an initiation temperature.

Abstract: The invention relates to a method and a device which are used to heat materials in order to produce objects industrially, especially by mass production, and which allow a large variety of transformation methods.

Abstract: A substrate processing apparatus includes a chamber having a reaction space therein, a substrate seating member disposed in the reaction space of the chamber to seat a substrate thereon, an induction heating unit to heat the substrate seating member, and at least one altitude adjusting unit to selectively adjust the altitude of the induction heating unit at the outside of the chamber according to a temperature adjusting region of the substrate seating member. Therefore, it is possible to constantly control a temperature of the substrate seating member by adjusting the distance length between the substrate seating member and the induction heating unit at the outside of the chamber.

Abstract: A hardening apparatus (10), comprising a heating zone (20) induction heating coiled members (12) to a hardening temperature and cooling zone (30) rapidly cooling the coiled members (12) induction heated to the hardening temperature. A carrying route (22) for carrying the coiled members (12) in the direction of arrow A (carrying direction) while the coiled members are rotating and an induction heating coil (24) for induction heating the coiled members (12) being carried on the carrying route (22) while the coiled members are rotating are disposed in the heating zone (20). The large number of coiled members (12) are placed on the carrying route (22) at specified intervals so that the longitudinal direction thereof crosses the carrying direction and carried continuously.

Abstract: An apparatus is disclosed for accurately positioning a tool within a shrink-fit tool holder. The apparatus includes a combined tool presetter and heat-shrink device. The tool assembly is placed in a precision rotating spindle that is able to travel into a contained location for cooling of the tool assembly subsequent to heating the tool assembly through induction. The apparatus is adapted such that the precision rotating spindle precisely returns to a home measuring position subsequent to cooling for final measurement of the tool assembly. The presetter allows for measurements related to the tool assembly both prior to and subsequent to the shrink-fitting process.

Abstract: An apparatus for the heat treatment of integral rotors of gas turbines is disclosed. The apparatus includes a closable working space which can be evacuated or filled with inert gas, a heat source, a distance-measuring instrument, and a pyrometer. A method for diminishing and/or for eliminating internal stresses which are introduced into a component through welding is also disclosed.

Abstract: Method for treating a crank pin of a crank shaft. In the method hardness of the crank pin surface is measured and when the hardness is over a predetermined limit value, depth of the hard spot is measured. Heat treatment parameters are determined at least on the basis of the depth measurement and the hard spot is heat treated. During the heat treatment the hard spot is heated by an induction heating device.

Abstract: The present invention provides technology that uniformly heats and melts a plurality of solder material arranged in a plurality of locations on a board, and uniformly solders a plurality of parts to the board that are arranged in a plurality of locations on the board. A soldering apparatus includes an induction coil having a length in the longitudinal direction that is longer than the length of the board. An inner space having a size sufficient to arrange the board therein is maintained inside the induction coil. The board supporting the parts and the solder material will be positioned in the approximate center of the inner space of the induction coil. An alternating current will flow through the induction coil in this state. An alternating magnetic field will be generated in the inner space of the induction coil. Magnetic fluxes will substantially uniformly pass through the inner space of the induction coil along the longitudinal direction of the induction coil.

Abstract: A temperature control unit (216) for a column (201) of a fluidic device (200) for analyzing a fluidic sample, wherein the fluidic device (200) is adapted to conduct the fluidic sample through the column (201), the temperature control unit (216) being arranged to adjust a temperature of the fluidic sample in a flow path between an inlet 5 (207) of the column (201) and an outlet (208) of the column (201) so that a temperature adjustment effect occurs selectively in an interior of the column (201).

Abstract: A system for and method of reducing the rolling resistance of a tire by pre-heating the tire prior to use.

Abstract: Embodiments discussed herein relate to sensor devices and processes of producing them. Some embodiments include a sensor device with a substrate with a sensing element mounted above the substrate, with a heating element, mounted substantially coplanar to the sensing element; and with a heat spreading element, the heat spreading element thermally coupling the sensing element and the heating element.

Abstract: Multiple discrete charges of an electrically conductive material, such as pencil ingots, are inductively heated or melted in an electric induction furnace. The multiple discrete metal charges are electrically connected together during the induction heating or melting process. One method of making this electrical connection is to immerse the ends of the multiple discrete metal charges in a volume of molten metal during the induction heating and melting process.

Abstract: During induction heating of a billet of an electrically conducting material by rotating the billet relative to a magnetic field that is generated by means of at least one direct-current-carrying superconducting winding on an iron core, the reverse-induction voltage can be reduced when a direct current is generated and maintained in the winding at a value that generates in the iron core at least in the region of the winding a magnetic flux density at which the relative permeability of the material of the iron core is less than in a zero-current state of the winding.

Abstract: Process and machine for manufacturing printed circuit boards wherein a press packet comprised of at least two press plates of metal material between which is arranged a printed circuit board composition formed by one or more metal sheets, by one or more layers of insulating material impregnated with polymerizable resins and/or by one or more printed circuit boards with an engraved image of a circuit, are arranged between the press plates of a press and is pressed, subjecting said press packet to the action of a variable induction magnetic field which generates induced currents in each metal plate and sheet of the press packet, causing the heating of said plates and sheets, in turn causing the heating by thermal conduction of the layers of insulating material, melting and liquefying the resins in said layers of insulating material and adhering the insulating material to the metal sheets, so that, on raising the temperature even more, the polymerizable resins in the layers of insulating material are then polyme

Abstract: A system includes a first heater located at the leading edge of a gas turbine structural member, a second heater located aft of the first heater, and a third heater located aft of the second heater. The first, second and third heaters are electrically-powered to prevent icing of the gas turbine structural member. Each of the heaters has a Watt density, and the Watt densities of the heaters differ from one another as a function of a magnitude of a cooling coefficient for airflow passing the vicinity of each heater.

Abstract: A device resonator for medical device is provided. The resonator device includes a helical structure and a capacitor structure. The resonator device can be used in conjunction with a medical device, including a stent.

Abstract: A method of heat treating a component is disclosed. The method may heat a first feature of the component and heat a second feature of the component differently than the first feature. The method may measure a temperature value of the first feature and of the second feature. The method may also compare the measured temperature values to a threshold temperature value. The method may modify the heating of at least one of the first and second features based on the comparison.

Abstract: The present invention relates to a packaging machine for packaging packages, preferably trough-shaped packages, to be filled with goods, wherein a heating system is provided. The packaging machine is characterized in that the heating system is designed as an induction heating unit which is associated with a processing tool, and wherein the induction heating unit is provided in such a way that inductively generated eddy currents may be produced in the processing tool by the induction heating unit in order to directly heat the processing tool.

Abstract: An induction heating apparatus capable of stably operating at least one switching element contained therein is provided with a control circuit 5 which comprises a resonance waveform detector 6 for detecting a high frequency AC waveform supplied from an inverter circuit 3 to a heating coil 4 to produce a detection signal DS1 corresponding to high frequency AC power waveform; a phase comparator 8 for producing an adjusting signal PH corresponding to a phase difference between detection signal DS1 from resonance waveform detector 6 and drive signal D1 from drive circuit 7; and an addition circuit 13 for superimposing the drive signal D1 from drive circuit 7 on detection signal DS1 from resonance waveform detector 6 to supply to phase comparator 8the superimposed signal on a level same as or over operation threshold value VTH for the phase comparator 8.