Abstract: An assembly includes a tapping device for flow therethrough of molten material and a cooled inductor to be connected to an electrical source and mounted with respect to the tapping device to be inductively coupled to one of the tapping device and the molten material flowing therethrough. The inductor includes an electrically conductive induction coil having therethrough at least one cooling passage. Each cooling passage has connected thereto at least one supply line for supply thereto of cooling fluid and at least one discharge line for discharge therefrom of the cooling fluids.

Abstract: A cap sealing unit for securing foil-polymer laminate innerseals to containers has an air cooled electronics cabinet that may be sealed in accordance with NEMA 4 standards. Heat sinks in the bottom of the electronics cabinet and the top of the sealing head are cooled by two external, wash-down safe fans disposed between the cabinet and the sealing head. The fans draw air in opposite directions, one toward the cabinet and the other toward the sealing head. The cap sealer can be operated with interchangeable flat or tunnel sealing heads of various sizes and coil windings that can be connected to the power supply with plug-in shielded connector assemblies.

Abstract: In a godet for advancing and guiding an advancing synthetic filament yarn, the bearing housing for supporting a shaft consists of an inner bearing support and an outer cooling body, which are in a heat conducting contact with each other. Cooling of a bearing within the bearing support is enhanced because the material of the cooling body has a coefficient of thermal conduction which is greater than the coefficient of thermal conduction of the bearing support material. In a heated godet, a cup-shaped godet casing fits over the end of the shaft, and a stationary hollow cylindrical support is fit over the shaft within the godet casing. An annular space is defined between the support and the shaft, and a heating element is mounted to the circumference of the support. The bearing housing at least partially defines openings that provide cooling air to the annular space.

Abstract: A method and apparatus for in-situ induction tempering is provided in which an induction coil is used to temper a part in-situ at the location. The use of an induction coil in-situ at the heat treating location eliminates the need (and time and expense) of a multi-step process wherein in part to be tempered would otherwise have to be moved from the quenching location to the tempering location, such as at a tempering furnace. It also eliminates the need for the tempering furnace, which is a great space savings. In one form of the invention, the power supplied to the induction coil is controlled by a closed-loop temperature controller that is controlled by the temperature in the vicinity of the tempered part, as opposed to simply be controlling on time at temperature.

Abstract: A sheet bar joining apparatus comprises a heater provided between a delivery-side clamp for clamping a rear end of a preceding sheet bar and an entry-side clamp for clamping a front end of a succeeding sheet bar; upper and lower anti-buckling plates provided on the entry-side clamp and located above and below the sheet bars; upper comb tooth portions and lower comb tooth portions formed in the upper and lower anti-buckling plates, respectively; a heat resistant insulator provided at a surface of each comb tooth portion opposed to the sheet bars; and a plurality of groove portions provided near the surface of each comb tooth portion opposed to the sheet bars.

Abstract: In a method of operating an inductor of a tapping device of a melt vessel, the inductor couples inductively during a working phase with an electrically conductive shaped component and is cooled by means of a fluid. The inductor is electrically decoupled and cooled by means of a fluid in another working phase.

Abstract: In a method of operating an inductor of a tapping device of a melt vessel, the inductor couples inductively during a working phase with an electrically conductive shaped component and is cooled by means of a fluid. The inductor is electrically decoupled and cooled by means of a fluid in another working phase.

Abstract: In a method of operating an inductor of a tapping device of a melt vessel, the inductor couples inductively during a working phase with an electrically conductive shaped component and is cooled by means of a fluid. The inductor is electrically decoupled and cooled by means of a fluid in another working phase.

Abstract: A system for thermomechanical characterization of material using an induction heating system capable of reaching a temperature of 3300.degree. C. in not more than 20 seconds. This fast heating device comprises induction coils laid out at least partly around the sample (21) and generating induced currents, a susceptor placed between the sample and induction coils to transform induced currents into heat radiation, a thermal protection shield placed between the induction coils and susceptor shield to protect the induction coils from hear radiation emitted by the susceptor and an insulation material globally surrounding the induction coils. The invention has utility in fields using new materials, such as in the aeronautical and automotive industries.

Abstract: A device for heating a press tool (4), which is mounted in a press (3) for manufacturing products wholly or partially of plastic or composite, consists of a core (1) of electric sheet steel, a coil arrangement (9, 10, 11) placed around the core (1), and a voltage source (12). The voltage source (12) is connected to the coil arrangement (9, 10, 11) for generating a magnetic field in and around the core (1). The core (1) has two poles (8a, 8b) which, between themselves, receive the press tool (4) and are displaceable in relation to one another for applying a press force to the press tool (4) and conduct the generated magnetic field into the press tool (4). A press (3) comprises such a heating device and is used in a manufacturing method where the press tool (4) is heated by the magnetic field supplied thereto.

Abstract: A high frequency bar type heater can be inserted into a hole of an object to be heated even if there is an obstruction above the hole. The high frequency bar type heater has a flexible and slender heat resisting and insulating tube (2) having both its ends closed so as to form a water-tight container. A flexible and slender conductor coil (3) is inserted in the heat resisting and insulating tube (2). A magnetic core (5), sectioned in plural pieces in its longitudinal direction, is contained on an inner side of the conductor coil (3). A flexible cooling water pipe (6) is inserted in the heat resisting and insulating tube (2) so as to cool the interior thereof. The high frequency bar type heater thus has flexibility as a whole. The magnetic core may also be formed of a flexible material.

Abstract: An apparatus and method for fusing intercell connectors to battery cell terminal posts. The apparatus includes inexpensive, non-metallic molds, each having a mold opening and being positionable onto a connector with the mold opening in aligned relation to a terminal post positioned in a connector opening for defining a mold cavity adjacent an end of the terminal post and the connector opening. A selectively positionable induction heating head is provided for locating an induction heating coil in predetermined spaced relation to a terminal post and connector to be fused such that generation of a high frequency, oscillating current in the coil causes melting and fusion of the terminal post and connector with the mold retaining and forming the molten lead. The induction heating head may be manually positionable for use with batteries with different post locations and orientations and includes safety and position locating features.

Abstract: The present invention provides a hot reversing rolling mill for isothermally reducing a metal strip product. The mill includes a hot reversing mill stand with a pair of coilers positioned on opposite sides of the mill stand. At least one heater is positioned between one of the coilers and the mill stand with at least one strip cooling unit positioned between one of the coilers and the mill stand. A sensor is provided for sensing a strip parameter indicative of strip temperature as well as a controller for controlling each of the heating and cooling units in response to the sensed parameter. The rolling mill of the present invention can be utilized for isothermally rolling multiple passes of a metal strip product on the hot reversing mill.

Abstract: A conformal skate for use in an inductive welding system for creating a fusion bond along a bond line between two thermoplastic parts includes a wheel having a circumferential casing made of fluid impervious flexible material. The wheel is rotatably mounted on a fixed axle by fluid tight bearings. The axle has an axial passage for admission of pressurizing and cooling fluid, and for power leads for the coil and for leads for sensors inside the wheel. A vertical mount on the axle supports the coil for vertical motion and biases the coil downwardly so that it remains in contact with the inside surface of the casing despite unevenness or contour changes in the upper surface of the top part or changes in the wheel shape when the fluid pressure in the wheel or downward force on the axel is changed.

Abstract: In order to determine the contents of solids in a heated elongated slug of thixotropic metal having a longitudinal axis, there is an apparatus comprising an inductive heating coil with electrical winding. Moreover, a sensor includes at least one measuring coil arranged between the heating coil and the slug. This sensor provides an output signal which corresponds to the contents of solids demanded.

Abstract: Disclosed is a high-frequency heating apparatus including an elongated chamber in which a plurality of rocker arms are introduced, each of the rocker arms being attached with a chip and brazing filler such as a copper wax, a high-frequency brazing coil for high-frequency heating a designated part of each rocker arm in the chamber to braze the chip to the rocker arm, a high-frequency temperature-holding coil for holding the temperature of the rocker arm constant, and a nitrogen gas supplying device for keeping the chamber filled with a nitrogenous atmosphere during the high-frequency heating.

Abstract: A multipurpose chuck apparatus (100) has a chamber (112) for holding a medium (114). The medium (114) is heated into a high temperature molten state by a radio frequency induction heating coil (130). The medium (114) heats up a semiconductor material (118) through a chuck member (116) that separates the medium (114) from the semiconductor material (118). The heating performed by the radio frequency induction heating coil (130) generates a fluid flow within the medium (114), providing a uniform temperature distribution throughout the medium (114). A magnetic rotation device (121) controls movement of rotating member (128) having a mixing member (122) and rotating fins (184) to ensure complete uniform temperature distribution throughout the medium (114), especially in the vicinity of the chuck member (116). An inlet cooling tube (122) and an outlet cooling tube (124), isolated from the medium (114) provide cooling fluid to the chuck member (116) for temperature control of the semiconductor material (118).

Abstract: Electrical connector components, for example, a pin terminal constructed from a solid wire pin and a formed metal body, are attached to a web carrier and fed through an inductive heating station, thereby bonding the components together. The components are pre-treated with a conductive bonding material which can be cured, flowed, or set by applying heat. The web carrier may be wound on a first spool, fed through the inductive heating station, and wound onto a second spool, for ready feed to and from successive production steps. The temperature of the heating operation may be controlled by varying the speed of the web feed and the strength of the inductive field, so as to ensure repeatable, uniform heating, at a high economical speed. In addition, the tip of the pin can be cooled during the heating operation, to prevent heat damage or contamination of the pin.

Abstract: In a billet induction heating device, a plurality of heating coil units having round holes different in diameter from one another are arranged in such a manner that the central axial lines of the round holes are in parallel with one another and are in a vertical plane, and moving means supports the heating coil units thus arranged. Whenever a billet is given which is different in size from the one which has been processed, among from the heating coil units one suitable for the given billet is selected, and the moving means is operated to move the heating coil units until the selected heating coil unit reaches the position where it can accommodate the given billet. This arrangement makes it possible to achieve the replacement of the heating coil unit quickly and readily.

Abstract: The heat radiating device of an induction heater comprises a body, a heat radiating unit, and a ventilating unit. The body comprises a bottom housing provided at the front end thereof with a plurality of air admitting holes. The heat radiating unit is mounted on the air admitting holes and composed of a fan. The ventilating unit is disposed in the upper portion of the rear end of the body and provided with a ventilating seat and a horizontal air duct with an outlet whose level is higher than the bottom of the mounting portion of the body. The cool air is drawn in form the air admitting holes while the hot air is let out from the ventilating holes of the ventilating unit.

Abstract: Electromagnetic-induction heating coil, especially for the heating of metallurgical products, in which coil conductors are cooled with the aid of a tube in which a cooling fluid, in thermal contact with the conductors, circulates, wherein the conductors are wound in at least one ply, as a helix around the cooling tube so that the ply has at least one twist of one complete turn between two electrical terminals of the coil.

Abstract: An apparatus for producing a heat recoverable plastic article such as a tube by deforming the article from a heat-stable configuration to a heat-unstable configuration. The heat-unstable configuration will return to the heat-stable configuration when the article is heated to above the heat recovery temperature. The article is heated such that the article is at a temperature no lower than the heat recovery temperature during the deforming step by lossy particles dispersed in the article or in a tool used in the deforming step. The lossy particles allow auto-regulated heating of the article since the particles cannot be heated beyond their Curie transition temperature when subjected to an alternating magnetic field. These particles are preferably ferrites. Alternatively, the tool can include a braided mesh tubing of a ferromagnetic alloy wire.

Abstract: A hollow electrical conductor coolable to extremely low temperatures is disclosed. The conductor is hollow and has a connection for the introduction of extremely cold gases in a liquid or gaseous state and an outlet for the gases. At least one hose element (5; 24) is arranged in the hollow conductor (1; 19; 22; 23) and is connected to a gas connection and provided with perforations (6) to allow the gas to pass out. The hollow conductor (1; 19; 22; 23) is useful as an induction coil for induction furnaces for heating, keeping hot or melting metallic material. The external diameter of the hose element (5; 24) is smaller than the internal diameter of the hollow conductor (1; 19; 22; 23). The hollow conductor has passages (6a) in the wall to allow the gas to pass out and is fitted with a jacket (8) which provides an annular clearance to the hollow conductor and the gas emerging from the hollow conductor (1; 19; 22; 23) is collected and carried away.

Abstract: A radio frequency heating apparatus incorporating a radio frequency generater valve (5), a radio frequency impedance matching transformer (7) and a heating coil/element arrangement (14) which is arranged to be selectively displaceable with respect to a working zone, wherein the heating coil or heating element (14) is integrally associated with the radio frequency impedance matching transformer (7) and is so physically separated from the radio frequency generator valve (5) that on displacement of the heating coil/element arrangement the transformer is constrained to move therewith without mechanically displacing the generator valve (5).

Abstract: There is disclosed a high power induction heating coil for use in thermoplastic welding where a metallic susceptor is imbedded in a composite assembly and is heated by eddy currents generated by the coil. The coil is comprised of several windings of Litz wire composed of multiple individually insulated strands of copper wire. The coil is wound on a circular E core having a coolant conduit through the center of the core. Coolant is introduced through the central core and returned by circulating through the loosely wound coil to the coolant source.

Abstract: There is disclosed a high power induction heating coil for use in thermoplastic welding where a metallic susceptor is embedded in a composite assembly and is heated by eddy currents generated by the coil. The coil is comprised of several windings of Litz wire composed of multiple individually insulated strands of copper wire. The coil is wound on a circular E core having a coolant conduit through the center of the core. Coolant is introduced through the central core and returned by circulating through the loosely wound coil to the coolant source.