Abstract: An apparatus for pulling extrusions from a press, comprising two pullers (5,6) which alternatingly pull the extruded product (3) along an extrusion path and each are equipped with a separator (16) that moves along, and further comprising a cross-transfer conveyor (8) which conveys the extruded products upon separation in a direction transversely of the extrusion direction (F) for further processing, is characterized in that puller heads of the pullers (5,6) are designed to be movable transversely out of the extrusion path (2) for lateral shifting of the clamped extruded product by a cross-drive.

Abstract: Method, control, and apparatus for taking up a billet produced in an extrusion or tube-making press includes applying a controlled pull-away tractive force, which keeps the emerging billet straight and does not affect the formation of the billet, increasing the pull-away tractive force in proportion to the extruded billet length, unit length weight and coefficient of friction between the billet and the delivery table, superimposing the pull-away tractive force upon the take-up tractive force determined from the cross-section and flow behavior in the die. After a billet has been separated and withdrawn from the die, the pull-away force and the length of the emerging billet are measured and the pull-away force, divided by the billet length, is entered as a set value for the specific profile frictional force to be multiplied by the billet length, which is determined by a path measurement, when extruding a subsequent billet of the same nominal cross section.

Abstract: An extrusion puller which comprises an upper jaw, a lower jaw, and means for mounting the upper and lower jaw relative to each other. The upper jaw comprises a plurality of jaw fingers with radially extending gripping teeth circumferentially spaced around the bottom portion of the tooth wherein the attack angle between teeth and the spacing angle between adjacent teeth is selected so that substantially full penetration of at least one of the gripping teeth into the workpiece is achieved without interference from an adjacent tooth. The lower jaw comprises a serrated upper surface comprising a semi-circular scalloped configuration of a plurality of peaks and valleys. The combination of the upper jaw and lower jaw configuration allows for increased gripping strength to be exerted on the workpiece and thereby avoid defects within the extruded workpiece.

Abstract: An extrusion pulling apparatus including an extrusion run-out table and an extrusion puller which is mounted for reciprocal movement along the run-out table. The extrusion puller has an upper jaw mounted for vertical reciprocal movement between clamping and release positions on a support frame and a lower jaw mounted for reciprocal lateral movement between clamping and release positions also on the support frame. The lower jaw is also mounted for vertical movement with respect to the support frame. A stripper finger is mounted on the puller adjacent the upper and lower jaws when the jaws are in the clamping position and is movable laterally to push extrusions toward a cooling table when the lower jaw moves in an opposite direction to strip the extrusions from the lower jaw and to push one end of the extrusions from the extrusion line.

Abstract: Device to draw extruded stock for an extrusion press, in which downstream of an extrusion press (11) is a withdrawal track (15) cooperating with two carriages (21) bearing engagement vices (24), an endless runway (20) being comprised in coordination with the withdrawal track (15) and having one segment (115) parallel to the withdrawal track (15) and bearing the two carriages (21), the endless runway (20) including two straight segments (115-215) and two connecting bends (22) and at least one switch point (120) and a parking line (315) for the carriages (21).

Abstract: Apparatus for continuously extruding material includes a moving member and a stationary member forming a passageway therebetween for frictional feeding of the material to be extruded under pressure into the passageway. An abutment in the passageway forms a barrier to the material being fed therein, whereby the forces on the material heat it and cause it to yield. The heated material flows into an extrusion chamber adjacent to the abutment and is extruded from a die in a wall of the chamber. A cooling system provides first and second phases of quenching the extruded product separated by an interval of self-annealing to limit the surface grain size and the hardness of the extruded product. The product is subjected to the first phase of quenching immediately as it exists the die, to maintain the temperature of the extruded product at a desired fixed level at a selected point along the flow path of the extruded product downstream of the die.

Abstract: An extrusion run-out table for aluminum extrusions and the like has an extrusion support table for supporting extruded profiles as they are extruded from an extrusion press along an extrusion path and a conveyor for moving the extruded shapes from the extrusion support table to a cooling area and to a further processing area. The extrusion support table includes a set of elongated heat-resistant bars mounted perpendicular to the extrusion path, with the bars extending laterally of the extrusion path into the cooling area a distance sufficient to position one or more of the extended shapes in laterally spaced relationship to the extrusion path. The extruded shapes are cooled through an air manifold above the extrusion path and through a series of air jet nozzles which project cooling air against the extruded shapes as they are extruded.

Abstract: Transfer means for transferring a continuous elongate product, such as wire, bar or tubular products associated with a continuous extrusion machine, between two stations in the production line. Axial tensioning means 8, 10 each consisting of a pair of resiliently tyred wheels 12, 14 positioned to grip the elongate product 2 and driven by a low inertia, electric, motor induce an axial tension in the elongate product 2. The elongate product forms a curve 20 of catenary form between the axial tensioning means 8, 10. A control signal indicative of the gravitational deflection of the curve is derived from an ultra-light dancer arm 22, or an optical or ultra-sonic sensor, and is utilized in combination with a signal derived from product speed sensor means 24 to control the speed of the low inertia, electric, motors and thus the tension in the elongate product.

Abstract: Pressurized fluid, pressurized in excess of the yield strength of a billet or rod, is communicated to the exterior of a piercing punch during piercing of the billet or rod to produce tubing, the pressurized fluid is provided to the exterior of the piercing punch during piercing to provide forced lubrication between the piercing punch and the billet or rod to reduce friction therebetween; such communication of pressurized fluid is also for causing self-centering of the piercing punch with respect to the billet or rod during piercing to produce tubing of uniform wall thickness.

Abstract: Apparatus and method for coating a high tensile strength fibrous material with an extrudible, corrosion-resistant metal to form a composite, continuous wire using dies, a compression cylinder in fluid connection with the dies, a piston for forcing the metal out of the compression cylinder and through the dies and a mechanism for feeding a fibrous material through the dies as the metal coating is extruded out the dies with the fiber. Continuous lengths of a composite material made by such a method, electrode grids comprised of the composite material made by such a method and a cabled composite wire constructed of the composite material made by such a method. Also, series and parallel connected cells comprising a battery utilizing such electrode grids.

Abstract: In a system for controlling a puller assembly (3) for withdrawing an extruded section as it exits from an extruder, in which the puller assembly (3) is moved in withdrawing direction by means of a drive mechanism (9), the actual speed with which the extruded section (1) is withdrawn is sensed by means of a tachometer (34) and is delivered to a speed controller (32) for controlling the speed of the drive mechanism (9) for the puller assembly. Optimum pulling force may be adjusted by providing follower means (11, 12) between the puller assembly (3) and the drive mechanism (9), said follower means being acted on by an actuator (15) for permitting relative movement between a drive member (8) and the puller assembly. The relative movement of a follower (11) is delivered via a displacement detector (30) to the speed controller (32) as a disturbance factor.

Abstract: The specification discloses a puller apparatus for pulling an extrusion profile as it emerges from an extruder. A puller carriage is mounted for rolling motion beneath a track which extends away from the extruder and a puller jaw is located on the front of the carriage for grasping the extrusion profile to be pulled. The track includes two spaced apart, opposed, parallel rails extending parallel to the track. An upwardly and inwardly facing running surface is formed on each rail. Inclined wheels are rotatably attached to the carriage and are configured to engage and roll on the running surfaces of each rail so that as the profile is being pulled away from the extruder, the inclined wheels transmit to the running surfaces downward, upward and lateral forces which occur during the extrusion process.

Abstract: A continuous extrusion machine, in which feedstock is admitted (at 50) to a peripheral groove (12) in a rotating wheel (10), is enclosed in that groove by a cooperating shoe (24), and is frictionally dragged along an arcuate passageway (48) formed by said groove and a projecting portion (30) of said shoe towards an abutment (36) carried by the shoe. The abutment tip and adjacent wheel parts disposed downstream of the abutment are cooled directly by a jet of cooling fluid issuing from a nozzle (64) carried downstream on the shoe. An annular band (FIG. 2, 74) of a good thermally-conductive metal embedded concentrically in the wheel enhances the cooling obtained. The extrusion apparatus yields a metal product (FIG.

Abstract: A continuous extrusion product issuing from a continuous extrusion apparatus is threaded through a treatment die (to change its cross-section) and is continuously drawn therethrough by a tensioning device controlled by a system which (a) senses the temperature of the product as it leaves the extrusion apparatus, (b) converts (in a function generator) a temperature signal so produced into a tension reference signal, (c) compares a tension feedback signal (derived from a sensor adjacent the extrusion apparatus) with that tension reference signal, and (d) controls the tensioning device in accordance with the difference of the tension reference and feedback signals so as to prevent the sensed tension in the product (extending between the extrusion apparatus and the treatment die) from exceeding a safe value which is less than the yield stress tension of that product at the sensed temperature.

Abstract: A pull measuring system used in a puller for extrusion profiles being extruded out of an extruder comprises a divided puller head (14) having its parts (30,31) supported for pivoting movement with respect to each other about an axis (32) which extends transversely of the direction of pull. In operation a tie bar (39) fixed to the part (31) carrying the clamping grippers for the extrusion profiles acts in the direction of pull on a force detector (34) fixed to the other part (30) which is arranged at a cantilever (13) of a carriage. In this manner the pull prevailing in operation and being transmitted by the puller to the extrusion profiles can be sensed reliably and accurately under any operating conditions.

Abstract: Disclosed herein is a heat resistant pad which comprises a plurality layers of batt mixtures essentially consisting of carbon fibers and aromatic polyamide fibers, the layers of batt mixtures being superposed and entangled to integrate into a felt-like structure by way of needle punching.A heat resistant pad of such constitution has a property of adequate flexibility, wear resistance, impact resistance, frictional coefficient and cushioning property for use with rear facilities of an aluminum extrusion pressing machine.Also disclosed is a heat resistant pad coated and impregnated with a silicone resin to improve wear resistance and impact resistance.

Abstract: A conveying apparatus for extrusion profiles, is disclosed in particular, those formed of non-ferrous metal, such as aluminum or aluminum alloys, supplied from the runout conveyor of an extruder in a direction transversely of the longitudinal extension of the extrusion profiles to stations of further processing. The apparatus comprises transfer beams, oriented in conveying direction, which are designed for effecting lifting and lowering as well as transfer motions in and opposite to the conveying direction and preferably adapted to be driven by a common drive. The motions in question are controllable as to path length and/or sequence in time and duration, preferably in synchronism and at infinitely variable length in lifting and/or transfer direction.

Abstract: This invention teaches a method of cutting a narrow slot in an extrusion die with an electrical discharge machine by first drilling spaced holes at the ends of where the slot will be, whereby the oil can flow through the holes and slot to flush the material eroded away as the slot is being cut. The invention further teaches a method of extruding a very thin ribbon of solid highly reactive material such as lithium or sodium through the die in an inert atmosphere of nitrogen, argon or the like as in a glovebox. The invention further teaches a method of stamping out sample discs from the ribbon and of packaging each disc by sandwiching it between two aluminum sheets and cold welding the sheets together along an annular seam beyond the outer periphery of the disc. This provides a sample of high purity reactive material that can have a long shelf life.

Abstract: An extrusion apparatus includes a slot-type cooling table over which elongated extruded members move laterally. A plurality of side-by-side blower units are located beneath the table to develop a blanket of air through which the aluminum extruded members pass. Each unit includes a motor-driven tubular air blower having a tubular outlet duct. A rectangular discharge nozzle is connected to the air blower and spans the extrusion line and also extends along a predetermined length of the extrusion conveyor. A plurality of adjustable louvers are connected within the nozzle to uniformly disperse the air from the tubular outlet duct into a square uniform curtain of air which passes upwardly over the conveying line and the metal extruded member on the conveyor. The louvers direct the air directly perpendicular to the extrusion and/or partially on-line with the hot extrusion. This produces high quality, uniform characteristic in the aluminum extruded member.

Abstract: Apparatus for extrusion forging essentially comprises a double action hydraulic press composed of an inner ram. Extrusion forging of a billet is accomplished by placing the billet in a container and inserting a punch into the container thereby forcing the billet through the die. After the extrusion forging, the punch is raised to a prescribed level and held there and the container is subsequently raised. Since the undeformed part of the billet is attached fast to the container, the rising container drags the extruded part of the billet out of the die and, at the same time, brings the undeformed part of the billet into powerful collision with the punch and consequently knocks the extrusion forged product out of the container.

Abstract: A method of reducing the cross-sectional area of one or more extruded wires as a combined effect of drawing and rolling, by passing the wires through reduction rollers driven at a peripheral speed which exceeds the greatest extrusion speed of any of the wires, thereby avoiding the formation of fins due to the passage of excess material between the rollers. Use of this method makes it unnecessary to track the rotation speed of the rollers with variations in the extrusion speeds.

Abstract: The discharge roll table comprises a plurality of rollers for receiving extruded bar or tube. A top cover extending along the table above the rollers is of substantially inverted V-shape cross section and is divided along the top edge into two half covers pivotable to the left and right of the table respectively. Each half cover is divided into cover sections aligned end to end and is connected at an angle to lifting devices arranged between the rollers. Thus the extruded product may be lifted to the left or right of the table, which may be substantially the same length as the extruded product.

Abstract: An axial discharge apparatus for use with a drawbench or an extrusion press includes a plurality of shiftable forks aligned for reception of drawn or extruded stock and a plurality of powered rollers disposed therebelow. The forks receive one or more lengths of drawn or extruded stock subsequent to the completion of forming and, in unison, lower them to the rollers. Rotation of the rollers conveys the formed stock axially out one end of the drawbench.

Abstract: A puller for extrusion profiles at an extruder is disclosed including a carriage which is movable on rails along a runout conveyor for the extrusion profiles and at which a puller head with a fixed and a movable clamping jaw is arranged for pivotal movement about a vertical axis so that the puller head may be swung laterally out of the runout conveyor. The two clamping jaws extend approximately across the width of the runout conveyor, and the movable clamping jaw comprises a plurality of clamping segments which are supported at the puller head for free swinging movement about a horizontal axis and adapted to be pivoted in opening sense by a drive means.

Abstract: This disclosure relates in part to a hot extrusion press wherein the extrusion is cooled immediately after the extrusion operation by arranging a cooling tube including a cooling nozzle within the platen of the press and a second cooling nozzle between the platen and a water tank to which the extrusion is ultimately transferred for final cooling. The second cooling nozzle is employed to cool the extrusion and on the occasion of a cobbled extrusion, it is employed to drain the cooling tube and at the same time prevents water from flowing from the tank into the tube.

Abstract: A method is disclosed for producing extrusion profiles of a desired length, including the steps of processing a billet of preselected billet length in a press, measuring the extruded length during the extrusion process, and either switching off the extrusion process upon reaching the desired extruded length and varying the billet length such as to obtain the optimum butt thickness, or switching off the extrusion process upon reaching the minimum permissible butt thickness and enlarging the billet length such as to obtain the desired extrusion length. The apparatus for performing the method includes a billet hot shearing unit which has an adjustable longitudinal feed stop and cuts the billets to length. The billets are supplied to, and are processed in, a press in which a first length recorder measures the butt thickness and from which the extruded profile is drawn out by an extrusion drawing unit. A second length recorder measures the extrusion length.

Abstract: Fine wire of indefinite length is produced at a high rate and in an economical manner from the surface of a billet, sheet or the like by creating a swelling on the surface of the work and forcing the swelling through a die in a single step.

Abstract: A device for achieving a continuous forming of a metal rod or bar as it emerges from an extruder to impart desired repeating design characteristics therealong. The device includes a pair of co-acting motor driven forming rollers with complementary design portions formed in their engaging peripheral surfaces to engage the rod therebetween and to impart the forming roller design thereto. The forming rollers and variable speed drive motor are mounted on a carriage trolley movable on a track toward and away from the extruder in alignment with the extrusion emerging therefrom. The piston rod of a pneumatic piston and cylinder assembly is fixed to the carriage to impart a predetermined degree of pressure thereto in alignment with and in the same direction as the pressure forces of the metal rod extrusion. The drive motor is operated at a predetermined R.P.M. to create a condition whereby the driven forming rollers engagement with the extrusion substantially counterbalances the combined P.S.I.

Abstract: An extruded materials conveying apparatus for an extruding press intended for use with a stretcher, comprising a number of beams on the side of the stretcher, said beams being reciprocally movable and inclinable in a direction perpendicular to the axis of the stretcher, and driving means for each beam comprising a rack and a pinion, each pinion being rotatably connected to a common shaft through a clutch means provided with a lever mechanism for controlling the clutch means between the latter and the stretcher, said lever mechanisms being operated by the tail stock of the stretcher.

Abstract: An apparatus for hydraulic pressing of metals comprising a receiver of finished articles, made in the form of a framework of two tubes interconnected at the ends by arms. The framework is turned by a separate drive in a horizontal plane, whereby each tube is set to a position axially aligned with a hole in the die wherefrom a pressed article is released into the pipe. As a result, stop-pages for removal of finished articles are not required, and, hence, productivity of the apparatus is improved.

Abstract: An isostatic press of the kind having a pressure vessel which is relatively tall in relation to its width, the pressure vessel being adapted to be closed by a lid in order to enclose workpieces and tools together with a pressure fluid in said vessel. The pressure fluid is adapted to be pressurized after the pressure vessel has been introduced into a frame adapted to absorb forces substantially in the longitudinal direction of the vessel. The pressure vessel is disposed pivotally in relation to the frame and means are provided to produce a pivoting movement between the vessel and the frame such as to give access to the top end of the vessel.