Abstract: A heat treatment device for a thermal treatment of a workpiece is provided with a housing that houses a chamber for accommodating the workpiece for the thermal treatment. A first roller supports the workpiece and moves the workpiece in a moving direction. A first brush seal is provided, wherein the first roller and the first brush seal are arranged relative to each other such that a first side of the workpiece contacts the first roller and a second side of the workpiece that is opposed to the first side contacts the first brush seal such that the first roller and the first brush seal then seal at least a first section of the chamber from a second section of the chamber.

Abstract: An apparatus and method of uniformly heating, rheologically softening, and thermoplastically forming metallic glasses rapidly into a net shape using a rapid capacitor discharge forming (RCDF) tool are provided. The RCDF method utilizes the discharge of electrical energy stored in a capacitor to uniformly and rapidly heat a sample or charge of metallic glass alloy to a predetermined “process temperature” between the glass transition temperature of the amorphous material and the equilibrium melting point of the alloy in a time scale of several milliseconds or less. Once the sample is uniformly heated such that the entire sample block has a sufficiently low process viscosity it may be shaped into high quality amorphous bulk articles via any number of techniques including, for example, injection molding, dynamic forging, stamp forging, sheet forming, and blow molding in a time frame of less than 1 second.

Abstract: An apparatus for manufacturing wire comprising: a wire delivering equipment, a wire winding equipment, and an annealing while running equipment installed between the wire delivering equipment and the wire winding equipment, the age-precipitation copper alloy wire being passed in such manner that the wire turns around a plurality of times along a running route in the annealing while running equipment. The current applying equipment to raise a temperature of the age-precipitation copper alloy wire by generated Joule heat may be installed at upstream side of the annealing while running equipment. Another current applying equipment for solution treatment may be installed in tandem at upstream side of the annealing while running equipment. In place of the annealing while running equipment, a current applying equipment may be connected in tandem for age-treatment. By using those equipments, age-precipitation copper alloy wire having the diameter of from 0.03 mm to 3 mm may be obtained.

Abstract: A hybrid method manufacturing apparatus for a torsion beam according to an exemplary embodiment of the present invention includes a pair of side punch molds where a semi-finished product material heated to approximately 880 to 800° C. is molded and a press mold where a cooling water circulation line decreasing the temperature of the processed finished product to approximately 750 to 450° C. while the semi-finished product material is molded to a processed finished product is installed, an advantage of high-temperature molding having high dimensional accuracy is maintained at the time of manufacturing the torsion beam and additional heat treatment such as tempering is selectively performed only when additional heat treatment such as tempering increases toughness because only a martensite structure is not formed in quenching treatment.

Abstract: Thus, as shown by an exact electrodynamic computation of EMBF and the estimations described above of the velocity of turbulent flows arising due to their effect, application of amplitude- and frequency-modulated helically traveling (rotating and axially traveling) electromagnetic fields in metallurgical and chemical technologies and foundry can considerably increase the hydraulic efficiency of MHD facilities, intensify the processes of heat and mass transfer in technological plants, significantly increase their productivity, considerably decrease energy consumption for the production of metals, alloys, cast articles, and chemical products, and improve their quality.

Abstract: An apparatus for rolling of a powder metallurgical metallic workpiece is provided having a feeding device, a first induction heating apparatus in operable communication with a first RF generator and at least a first hot rolling mill. A process control device monitors at least one parameter of the first RF generator and outputs a signal. A method for continuous rolling of a metallic workpiece is also provided using the apparatus for rolling. The process control device signal can be used to monitor metallurgical properties of the workpiece and provide in-line evaluation of the workpiece.

Abstract: An apparatus for manufacturing wire comprising: a wire delivering equipment, a wire winding equipment, and an annealing while running equipment installed between the wire delivering equipment and the wire winding equipment, the age-precipitation copper alloy wire being passed in such manner that the wire turns around a plurality of times along a running route in the annealing while running equipment. The current applying equipment to raise a temperature of the age-precipitation copper alloy wire by generated Joule heat may be installed at upstream side of the annealing while running equipment. Another current applying equipment for solution treatment may be installed in tandem at upstream side of the annealing while running equipment. In place of the annealing while running equipment, a current applying equipment may be connected in tandem for age-treatment. By using those equipments, age-precipitation copper alloy wire having the diameter of from 0.03 mm to 3 mm may be obtained.

Abstract: Apparatus for heat-treating an elongate structural body part made from a blank compressed while being soft or from steel strip of hardenable 22 Mn B5 mod. steel sheet with a thickness of 1 mm to 3 mm, includes an apparatus for positioning the structural body part in substantially upright disposition. Placed in surrounding relationship to the structural body part is an induction element which can move from bottom to top, thereby being able to follow a contour of the structural body part and allowing to at least partially heat the structural body part to an austenitizing temperature suitable for hardening. Disposed adjacent to the induction element is a cooling unit which follows the induction element in movement direction. The induction element and the cooling unit are moveable relative to one another and connected to a tool carriage which is mounted to a column for movement in a vertical direction, in a transverse direction to the column and about a horizontal axis.

Abstract: In a heat treatment apparatus, the direction of the magnetic field generated by the magnetic field generating device in the region in which the object of treatment is heat-treated and the conveying direction of the conveying device in which the object of treatment is conveyed into the heat treatment vessel are in parallel with each other, and are in parallel with the horizontal direction of the entire heat treatment apparatus. The object of treatment is heat-treated with the main surface thereof arranged in parallel with the direction of the magnetic field generated by the magnetic field generating device in the heat treatment region.

Abstract: A procedure for hardening at least one surface (S, L) of a wall (W) of a component (T), in which the surface to be hardened (S, L) is inductively heated with at least one inductor (2), in which liquid is filled into a gap (P) between the surface to be hardened (S, L) and the inductor (2) while heating the surface to be hardened (S, L), in which the side (AS) of the wall (W) opposite the side (IS) of the wall (W) provided with the surfaces to be hardened (S, L) is sprayed with liquid while heating the surface to be hardened (S, L), and in which at least one liquid jet (KI) is aimed at a zone (RZ) of the wall (W) that is adjacent to the surface to be hardened (S, L), and to be precluded from heating by the inductor (2). The procedure according to the invention makes it possible to tailor the hardening of at least one surface to the respective requirements, even on the walls of complexly shaped components with a small wall thickness.

Abstract: A method for annealing and galvanizing wires which comprises induction heating the wires in a first chamber at a first higher temperature to anneal the wires, cooling the wires to a second lower temperature in a second chamber and galvanizing the wires in a third chamber. The chambers are in serial communication and the heating, cooling and galvanizing steps are effected in an oxygen free atmosphere.

Abstract: An apparatus for rolling of a powder metallurgical metallic workpiece is provided having a feeding device, a first induction heating apparatus in operable communication with a first RF generator and at least a first hot rolling mill. A process control device monitors at least one parameter of the first RF generator and outputs a signal. A method for continuous rolling of a metallic workpiece is also provided using the apparatus for rolling. The process control device signal can be used to monitor metallurgical properties of the workpiece and provide in-line evaluation of the workpiece.

Abstract: A method of thermomechanically forming an aluminide part of a workpiece resistively heats at least a portion of the aluminide part, plastically deforms the heated portion of the aluminide part to a predetermined shape by applying pressure to the aluminide part positioned in a shaping member, and cools the aluminide part while applying pressure to maintain the aluminide part in the predetermined shape. The shaping member is movably mounted on a support base and a source of electricity provides an electrical current passing through the aluminide part for resistive heating of the part. The aluminide part can be a heater blade array for an electrical heater cigarette smoking system.

Abstract: An apparatus is disclosed for annealing only a portion of an elongated tubular workpiece. The apparatus includes an elongated tube dimensioned to receive the workpiece so that a first end of the workpiece together with the portion to be annealed is positioned within the tube while a second end of the workpiece extends outwardly from the tube. An induction coil is disposed coaxially around only a portion of the workpiece portion exteriorly of the tube while a source of pressurized nitrogen/hydrogen is fluidly connected to the interior of the tube. In an annealing operation, the tube is filled with hydrogen/nitrogen and the induction coil is energized thus heating only the portion of the workpiece for which annealing is desired. Simultaneously, hydrogen/nitrogen flows through the tube thus cooling the workpiece and maintaining an oxygen-free environment within the tube.

Abstract: A method and device for the controlled tempering of a casting trough integrated between a supply vessel for a molten metal (e.g., copper or a copper alloy), and at least one continuous casting mold. The trough walls and the trough floor of the casting trough are at least partially provided with a lining layer having a specific electrical resistance between 10−1&OHgr;·m to 10−6&OHgr;·m and being resistant to the heat of the molten metal. The lining layer is inductively heated by an electrical heating device arranged around the lining layer.

Abstract: A system and method for inductively heating and then quench hardening a portion of a workpiece, such as a several threads of a screw or bolt are disclosed. The system includes a conveyor system having a rotary conveyor for separating, aligning, and transporting each of the workpieces in aligned succession through an induction heater positioned about the rotary conveyor to heat-treat at least a portion of each of the workpieces. A sensor determines whether a workpiece is heat-treated to a minimum temperature and causes an ejector to separate heat-treated workpieces that have reached the minimum temperature from heat-treated workpieces that have failed to reach the minimum temperature. The separated workpieces are then quenched in a tank & separately removed automatically.

Abstract: In a heat-treatment apparatus for heat-treating a V-type cylinder block (W) by induction heating, the block (W) is fixedly mounted on a work table (11) and set at a reference position thereon. A plurality of induction heating coils (23) are disposed in each of opposite sides of a base frame (10) of the work table (11) through Z tables (21), Y tables (18) and X tables (13). These tables (13, 18, 21) enable the heating coils (23) to enter and exit from the corresponding cylinder bores (Wn) of the block (W) in a direction in parallel with a longitudinal direction of the cylinder bores (Wn). The Z table (21) moves back and forth in parallel with the longitudinal direction of the cylinder bores (wn). The Y table moves back and forth in a direction perpendicular to the rows of the cylinder bores (Wn). The X table (13) moves back and forth in parallel with the rows of cylinder bores (Wn).

Abstract: This invention provides a method and apparatus for casting, hot rolling and annealing of non-heat treatable aluminum alloys which comprises continuously casting, hot rolling, and, in-line with the hot rolling line, inductively heating the aluminum sheet. The induction heating system uses a feedback control to assure that the aluminum alloy is heated to the proper temperature based on one or a number of process variables, such as hot rolling exit temperature, hot rolled product exit rate in terms of speed and product dimensions, and sheet temperature at the exit of the induction heater. Variations in the induction heating temperature can be tolerated in the product without deviating from target mechanical properties.

Abstract: A process and apparatus is provided for forming spring wire into coils. A take-up block with a peripheral surface receives convolutions of wire as it is rotated. At least one pinch roll confines convolutions of the spring wire to the peripheral surface. The shape of the peripheral surface of the block and the circumferential surface of the pinch roll combine to define a gap for urging the convolutions of spring wire to migrate upward. At least one rotatable wire receiving basket is mounted adjacent the take-up block, and further drive means are provided for rotating the at least one wire receiving basket. In a preferred form, stationary guide loops are utilized to keep the spring wire moving in a predetermined trajectory from the take-up block to the rotating wire receiving basket.

Abstract: An apparatus for heat treatment of impact beams for use in automobiles is disclosed. This apparatus uniformly heat-treats impact beams having a non-circular cross-section, such as an elliptical cross-section. The apparatus of the present invention comprises a step feeder, a conveying unit, a guide unit, an impact beam rotating and moving unit, a heat-treating unit, a cooling unit and feed rollers. The impact beam rotating and moving unit consists of a rotary drum and a plurality of support rolls. This rotary drum cooperates with the support rolls to move the impact beams from the guide unit to a heat-treating unit. Each of the support rolls has a tapered profile. The heat-treating unit is used for heating the impact beams from the rotating and moving unit to the center of the induction coil so as to allow the impact beams to pass through the center of the induction coil.

Abstract: A plant for the continuous heat treatment of steel strips (4) or the like has a nonmagnetic insulated housing (1), in which two axially parallel unheated rollers (2, 3) are disposed at a distance from each other. To the first roller (2), the steel strip (4) or the like is supplied, which is then wound around the second roller (3) and as a secondary winding gets back to the first roller (2) through a transformer plate assembly (7) and is discharged from said second roller. The primary winding (10) with a corresponding number of turns is disposed outside the housing (1). The housing (1) is filled with a protective gas and has means (11, 12) to ensure a uniform temperature level and distribution in the housing (1).

Abstract: A tower furnace for the heat treatment of metal strips comprises a muffle (3) extending over the entire furnace height, through which muffle passes the strip (6). At the top of the muffle (3) an insulated stopper (1) with an electric heater (2) has been inserted into the muffle (3). Below this stopper (1) a gas-heated preheating space (4) is provided in the muffle (3).

Abstract: A device for continuously heat-treating continuously cast or formed metallic goods, particularly wire and the like. The device comprises a first annealing path in which the continuously formed metallic goods are guided by means of two contact rollers. The first and second contact rollers are arranged at first and second ends, respectively, of the first annealing path. Moreover, the first and second contact rollers are connected to a voltage source such that a current flows through the continuously formed metallic goods between the first and second contact rollers. The device further comprises a second annealing path similar to the first annealing path.

Abstract: A process and device are disclosed for regulating the annealing power in at least one annealing section of a continuous annealing and processing line for continuously cast metal products. The speed of the cast products (D) passing through the continuous annealing device is detected, as well as the voltage currently applied to the annealing section, which is converted into an effective value (U.sub.c) by means of a control device (50). The voltage supplied to the annealing section is modified by a control signal derived from the determined effective value of the voltage, in order to achieve a predetermined annealing power value dependent on the measured speed. At least the current flowing in one annealing section is also detected and converted into an effective value. The annealing power actually supplied to the annealing section is calculated from said effective values. The voltage value is modified by a control device until a predetermined value of the annealing power is reached.

Abstract: A heat treatment system for treating an impact beam is disclosed.

Abstract: An induction heating device for continuously moving metal strip (22) for heat treatment or coating purposes comprises a flattened, spirally wound coil having the turns interlinked by an oblique connection on a small side of the coil, and surrounding the continuously moving metal strip (22). Means (24-26) are provided for suppressing the transverse component of the magnetic field created by the said coil.

Abstract: A ferrous strip is galvanized by establishing an electrostatic potential on the strip which is then submerged on a fluidized bed of powdered galvanizing material and then allowing the adhered galvanized powder to be carried by the strip to a reflow station. The reflow station heats the strip and galvanizing material to liquidity the galvanizing material and establish the necessary alloy interface on the ferrous strip. Thereafter, the strip passes to a cooling zone wherein the reflowed galvanizing material is solidified before contacting a roller to use to direct the strip to the exit of the galvanizing apparatus. The atmosphere within the galvanizing apparatus is remained inert through the use of nitrogen which is also used as the fluid medium for the suspension of the galvanizing powder in the fluidized bed.

Abstract: A planar sheet of structurally hardened aluminum alloy, having, after quenching and aging, mechanical strength which varies continuously in a particularly defined direction of the planar sheet. The planar sheet is produced in a process comprising quenching and final aging, where the final aging comprises heating for a defined period of time a first portion of the plate or sheet including a first edge to a first temperature T and a second portion of the plate or sheet including an opposite edge to a second temperature t<T.

Abstract: A stripping apparatus for stripping metal film from a metallized plastic film is provided. In accordance with one aspect of the invention, a rod is utilized for providing an anode or cathode charge, with the rod movable in a direction perpendicular to the direction of movement of the metallized plastic film. As a result, any remnants which may accumulate on the rod from a previous stripping operation do not adversely affect subsequent stripping operations. Further, a pressing roller is provided which is downstream of both of an anode/cathode roller and the cathode/anode rod. In another embodiment, a plurality of anode-cathode pairs are provided which are rotatably mounted. When one of the anode-cathode pairs is performing a stripping operation, another of the anode-cathode pairs can be cleaned by a brush or grinding device, such that a newly cleaned anode-cathode pair can be presented for each stripping operation.

Abstract: A plant for conductive electrical heating of elongated electrically conductive objects, e.g. steel blanks for further treatment in a roll mill. Said plant comprises a combination of the following features:at least two blanks (1) are provided in parallel and spaced from each other, and are connected with at least one current supply (2) by the aid of transmission contacts (3, 4), which are provided so as to be urged towards the ends (1a, 1b) of blanks (1). Blanks (1) with associated transmission contacts (3, 4) are provided in a heat insulated chamber (5), in which blank (1) and chamber (5) together constitute an electrical furnace, in which blanks (1) constitute the heating elements of the furnace. A conveyor or manipulator (7) is provided for insertion, and removal, respectively of blanks (1) in transmission contacts (3, 4) in chamber (5) through an opening (9) in the surrounding chamber wall in any order chosen.

Abstract: The invention relates to a high frequency heat-treatment of long continuous metal blanks wherein the long continuous metal blanks are fed in their lengthwise direction by a pushing rod which is insensible to the high frequency to pass through a high frequency heating furnace and to be introduced into a cooling chamber in which a transferring means consisting of a plurality of, for example, chain conveyors is provided to transfer the long continuous metal blanks laterally, i.e. in the direction perpendicular to their lengthwise direction for sufficiently cooling them. According to the invention the apparatus can be installed in a relatively small space and the long continuous metal blanks can be successively subjected to the heat-treatment efficiently.

Abstract: A method and apparatus of dynamic heat treating the ferromagnetic amorphous alloys by applying AC current or pulsed high current on the alloys in the form of a ribbon are disclosed. The amorphous ribbon is continuously passed through a pair of electrodes from which AC current is conducted on the amorphous ribbon to perform a Joule heating. A DC magnetic field is applied on the amorphous ribbon preferably along a length direction thereof to improve the soft magnetic properties of the amorphous alloys. The DC magnetic field can be applied on either the section of the amorphous ribbon between the pair of electrodes or the section that has already been heat treated. With the method and apparatus, ferromagnetic amorphous alloys with improved magnetic properties such as greater magnetic induction, lower coercivity and low hysteresis loss are resulted and the annealing embrittlement is avoided.

Abstract: A stand for exerting a forward or rearward drag upon metal strips or sheets, in particular for a plurality of narrow strips which are to be wound up together with separate braking drags being applied to each strip, between two oppositely disposed, endlessly circulating conveyor chain systems driven by chain wheels, wherein a belt arranged between at least one chain system and the metal strip prevents particles of dirt such as forging scale, zinc and tin fines, etc. from entering the chain case.

Abstract: A method and device for thermally treating at least one carbon steel wire such a way as to obtain a homogenous austenite structure, characterized by the fact that the wire is heated in a tube containing a gas which has practically no forced ventilation, the gas being directly in contact with the wire and the time of heating of the wire being less than 4 seconds per millimeter of diameter of the wire. Pearlitization installation using such a method and device.

Abstract: A process for heat treating a carbon steel wire to obtain a fine pearlite structure is characterized by the following steps: (a) cooling the wire until the wire reaches a given temperature which is below the AC.sub.1 transformation temperature; (b) regulating the temperature of the wire to not more than 10.degree. C. above or below said given temperature by passing an electric current through the wire and effecting a modulated ventilation thereof; (c) cooling the wire.

Abstract: A method and apparatus for treating preselected areas of metallic ladder rungs wherein such metallic spaced rungs are moved in a path substantially normal to the longitudinal axes of the rungs with preselected areas of the spaced rungs passing through a controlled longitudinally extending heating zone to heat such preselected areas to a desired annealing temperature.

Abstract: The present invention is drawn to a method and apparatus for holding wire at a specified temperature for a specified period of time by a direct-resistance heating device which applies such voltage as to generate Joule's heat in the wire, sufficient to offset the quantity of heat that would tend to be released from the heated wire during unforced cooling, after the travelling wire is heated rapidly to a specified temperature throughout its cross section.

Abstract: Core laminations are stamped from electrical steel strip and stress annealed by induction heating in a closed tubular chute inclined downwardly from the stamping press. A preselected, non-ambient atmosphere is maintained within the chute.

Abstract: An inductor, used for the inductive reheating of metallurgical products is of the C-shaped magnetic yoke inductor type designed to straddle the product to be reheated. The free ends of the yoke have magnetic poles facing one another. The yoke comprises two polar legs and two intermediate connecting rods joined to one another at one of their ends and each articulated linked respectively to one polar leg by its other end, with the three joints thus formed having parallel axes.This inductor is designed for use in the reheating of products which can have different thicknesses, in particular, for products in motion, for example, as they are being rolled.

Abstract: The device for inductively reheating the verges of a metallurgical product moving down a production line comprises wound pole inductors with C-shaped magnetic yokes, arranged laterally straddling the path followed by the verges. The two arms of the C are trunnioned to open to a greater or lesser extent, providing a variable air gap, controlled by a cylinder.

Abstract: A normalizer for linear welds in continuous pipes, to travel along the side a pipeline during operation. The normalizer comprises an induction heater supported on a mounting assembly. A power source is provided for the induction heater and an electrical control means controls the power from the power source to the induction heater. A mechanical means continuously controls the elevation and lateral placement of the mounting assembly and induction heater with respect to those of the pipe. A mechanical control means enables continuous control of the lateral placement of the mounting assembly and induction heater with respect to the pipe weld to be normalized and ensures proper placement of the induction heater over that weld. A spacer means permits adjustable spacing of the induction heater a predetermined distance from the pipe weld to be normalized, to provide a predetermined air gap between the induction heater and that weld.

Abstract: A leading end portion (33) of a supply of cordge (31) is clamped to a mandrel (32) such that it is straight, after which a plurality of convolutions of the cordage are wound on the mandrel. The cordage is severed from the supply and a trailing end portion (34) of the wound cordage is clamped to the mandrel in a manner which causes it to be straight and hence suitable for termination with a modular plug (37). The coiled cordage is heated and cooled and is then removed from the mandrel while simultaneously the direction of the helices is reversed. Then the cordage is severed at a predetermined location to produce two retractile cords, for example, one including the leading end portion of the length of wound cordage and a newly formed straight trailing portion. The second cord includes a newly formed straight leading end portion and the initial trailing end portion. The newly formed end portion of each cord is caused to be held in a straight configuration and annealed to cause it to retain that configuration.

Abstract: It is known to anneal non-ferrous strip material by passing the strip continuously around a pair of spaced pulleys and effecting a short circuit between the incoming and outgoing strip material to form a closed electrical loop of continuously moving strip material around the pulleys. The material in the closed moving loop is heated to anneal temperature by inserting an induction coil in the run around the pulleys so that under electrical inductive effects a current is induced in the loop thus raising its temperature. The incoming and outgoing strip material overlaps in the groove of one of the pulleys, the incoming material being fed into the loop formation at the point of overlap in a spiralling path which leads or directs the strip laterally and towards the plane of the annealing loop. Loading of the pulleys is thus made easier, arcing and sparking is avoided at overlap, and the life of the system is extended.

Abstract: Solution heat treatment of a rapidly advancing intermediate metallic product (26) is accomplished by preheating the product in a first zone (27) by conventional means, a great length of the product is maintained at the desired temperature in a second zone (36), and the heated product is quenched in a third zone (40) in a special apparatus (25), before further processing.

Abstract: A method and apparatus for heat treating and especially annealing of elongate metallic materials such as wire wherein the wire (24) given a longer length exposure to complete the heat treatment of the wire at higher line speeds. This is accomplished either by adding a heated storage chamber (41) holding a great length of wire (24) in sequence with conventional or modified annealing apparatus, or by substitution of a special apparatus (100) for the existing conventional annealing apparatus.

Abstract: In the manufacture of tubing, and particularly finned tubing, for use by the heat transfer industry in the manufacture of heat exchangers, annealed ends and lands are desirable in certain applications to facilitate the assembly of the tubes to headers and baffles by expanding techniques. Such spot-annealed portions can be produced on a continuous basis by the described apparatus in which the moving tube is passed through a heating chamber which reciprocates on a carriage in the direction of tube movement. The heating chamber has a pair of spaced, power-actuated clamps which grip the tubing at the ends of a discrete length portion. The heating chamber and carriage are moved with the tube while it is clamped to provide sufficient heating time to anneal the discrete length portion. The carriage then returns to its starting position. Heating of the discrete clamped tubing portion can be by a resistance technique through the clamps or by other techniques such as induction heating or gas radiant heat.

Abstract: Disclosed is an improved system for annealing strand of the type comprising at least two sheaves across which the strand passes and becomes electrically annealed, the improvement comprising a first flange member, a second flange member concentric with the first flange member and adjacent thereto, and an annealing band positioned between the first and second flange members and forming the bottom of a sheave groove, further provided that the annealing band is adapted to center strand being annealed to prevent contact between the strand and either of the flange members thereby providing a renewable, strand centering annealer sheave adapted for long life.

Abstract: An apparatus for heating blooms or slabs comprises a tunnel with a conveyor for supporting successive slabs and moving them along the length of the tunnel. The blooms rest flat on the conveyor rather than on edge. Polyphased inductors are located above and under the path of the bloom to create a travelling wave magnetic field along the tunnel.

Abstract: An apparatus and method of continuously drawing and annealing wire in a slip mode. The method comprises the steps of directing a wire successively through a plurality of drawing dies of a continuous wire drawing machine, and from the next to the last die of the machine continuously directing the wire to and through apparatus for annealing the wire. From the annealing apparatus the wire is continuously returned to the machine for a final drawing operation. Before the wire is returned to the machine, however, the temperature of the wire is controlled to provide the wire with metallurgical properties suitable for further processing, such as the final drawing operation.

Abstract: An apparatus for the continuous heat treatment of elongated metal objects, especially wire, by contacting the same with molten metal, usually lead, whereby a preheating tray containing the molten metal is followed by a quenching tray with a second bath through which the metal is passed in succession. The preheating tray containing the first metal bath is electrically insulated and partly immersed in the quenching bath while electric current is applied across the baths to resistively heat the metal between them.