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WO/2008/010614A1 |
The present invention provides a novel die assembly for extruding and drawing ferrous and non-ferrous metal, and also to a method of making the same. The die assembly according to the present invention comprises a die core(3); at least o...
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WO/2007/123073A1 |
Provided is a pipe drawing plug (1), of which a straight portion (11) and a tapered portion (12) are connected by a curved portion (13). The curved portion (13) is characterized, in a section containing the center axis of the plug (1), i...
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WO/2007/104791A1 |
A container (4) for wire-drawing means in dry wire-drawing machines is proposed, through which container (4) the wire which is to be drawn and is guided through a inlet hole (5) and an outlet hole (7) in the container walls can be drawn ...
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WO/2007/096040A1 |
In order to provide a drawing method for shaping workpieces of metallic materials, the workpiece (3) being drawn through a die aperture (2) narrowing in the drawing direction (4), and thereby reduced in cross section and increased in len...
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WO/2007/097321A1 |
A tube having grooves formed in its inner surface. The grooves are formed in a reverse trapezoidal cross section, and the corners at the root of each groove have a circular arc shape and the ratio (R/δ) of the radius R (mm) of each corn...
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WO/2007/028410A1 |
A forming tool (20) characterised in that it comprises a substrate (21) and a metallic glass layer (23) on at least the working surface (22) of the forming tool (20) whereas the forming tool is one of: a) a forming tool of an extrusion...
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WO/2006/128476A1 |
The invention relates to a device for forming tubular electroconductive and/or magnetisable goods (1), especially for drawing or extrusion. The invention is characterised in that the device comprises at least one inductor (9) of an elect...
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WO/2006/022717A1 |
The subject invention relates to a new method for manufacturing extrusion die tools that eliminates the step of hardening the steel after cutting the steel to form the desired extrusion die tool design. The new method involves the steps ...
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WO/2005/102554A1 |
The inventive machine for shrinking an exhaust volume comprises a depolluting member disposed in a cylindrical envelop provided with an annular die (32) having an internal passage (36) whose gradually decreasing cross section is delimite...
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WO/2005/077562A1 |
Disclosed herein is a method and apparatus for forming a tapered steel pipe, which has a constant inclination in a longitudinal direction thereof and is usable as a post of a street light or electric pole, by simply pulling an existing c...
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WO/2005/058519A1 |
The present invention relates to a die comprising a die core (10) of a hard material and at least two pre-stressed rings (60, 70) of increasing diameter placed around the die core and methods of making and using the same. The die core (1...
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WO/2005/021176A1 |
The present invention relates to an arrangement, draw plate and roll for the cold working of wire. The arrangement comprises a typical draw plate housing in which two roll shafts are mounted. The roll shafts have an appropriate profiled ...
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WO/2004/112978A1 |
Apparatus for reducing the diameter, rounding or straightening of pipe or tubing by rolling comprising a plurality of closely and equallyspaced, long, narrow, parallel-cylindrical rollers arranged in a parallelcylindrical array throu...
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WO/2004/043621A1 |
The invention relates to a device for producing semifinished wire, especially semifinished wire which has a hexagonal cross section and is used for embodying high-temperature superconductors. Said device comprises a drawing die (2) that ...
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WO/2004/033121A1 |
The following invention refers to an equipment for cold-drawing a metal wire. The equipment comprises a succession of a sleeve (5) with a cylindrical hole (8) and a threading die (11) with a conical hole (14). The sleeve (5) is inserted ...
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WO/2003/101638A1 |
A material for diamond sintered body die not causing a crack in die cutting and a diamond sintered body die, the material for diamond sintered body die comprising a diamond sintered body and a support ring, characterized in that the supp...
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WO/2003/082495A1 |
A cold diameter reduction press molding method of a metal pipe comprising a diameter reduction molding process for reducing the outer circumferential length of an original metal pipe having a noncircular transverse section as compared wi...
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WO/2003/051547A1 |
Disclosed is a wire rolling machine. The machine comprises a first bobbin for paying off a wire wound thereon; a leveler unit for adjusting a height of the wire paid off from the first bobbin to ensure that the wire can be properly guide...
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WO/2003/037539A1 |
The invention relates to a method and device used to produce hollow sections with very high degrees of reduction at very high manufacturing speeds, while at the same time maintaining or improving the quality of the final product. Accordi...
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WO/2003/024639A1 |
The manufacture of seamless tubes in which the process includes providing an assembly having a metal tube blank (1), and an elongate metal core (2) of shape memory effect material which is surrounded and contacted by the tube blank (1) w...
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WO/2003/024636A1 |
The invention aims at providing a spray boom comprising several spray nozzles for a hydraulic descaling facility, by means of which high temperature constancy is ensured from beginning to the end of the rolling stock and rapid cooling of...
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WO/2003/009309A1 |
A method and an apparatus for producing a Keystone type superconducting formed strand, in which the side face of formed strands on the thinner side touches a roll ahead of the side face on the thicker side when a wire formed by stranding...
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WO/2002/072291A1 |
The invention relates to a pressure drawing tool for drawing round and non-round billet-shaped metallic stock that is to be shaped with which excellent lubrication conditions, very long serviceable tool lives, and a high product quality ...
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WO/2002/070158A1 |
An apparatus and method for manufacturing small diameter ultrasonic probes (1) capable of vibrating in a transverse mode that can be used in ultrasonic tissue ablation. The apparatus includes a die (20), a syle puller (30) which is used ...
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WO/2002/027054A1 |
The present invention relates to cemented carbide tools for coldforming and drawing operations. The cemented carbide comprises WC with an average grain of <1 $g(m)m and 0.5-4 weight-% binder phase consisting of Co and Ni, <0.5 wt-% Mo, <...
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WO/2002/024366A1 |
A method of forming a cold diametrally reducing roll for metal pipe and a metal pipe formed by the method; the method, characterized by comprising the steps of pre-forming an original pipe formed of a metal pipe to a metal pipe having an...
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WO/2001/063196A1 |
A tube with inner surface grooves, characterized in that a number of micro grooves (10) in parallel with an inner surface are formed spirally in the inner surface and the grooves (10) are formed in a shape of W (width along the axial dir...
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WO/2001/052977A1 |
A forming tool for a pressable material (2), particularly a high-pressure forming tool, has a die (1) surrounding a hollow working space, the die being surrounded by an armouring (5 to 10), which has a bandage (8) with a plurality of win...
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WO/2000/064604A1 |
A rolling device (11) capable of forming and opening a clearance (33) for rolling, wherein a material (35a) having a cross-section diameter varying in axial direction is formed, and a tapered finished product (35b) is formed of the mater...
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WO/2000/018973A1 |
This method refers to a method by which the physical and mechanical properties intrinsic to a fine-grain structure may be formed in metal billets using pressure treatment. The method is designed to treat rods, bars and other particularly...
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WO/2000/015862A1 |
The invention refers to a method and a device for the treatment of a tool (1) comprising a steel with a surface layer (3) which is hardened by nitriding and/or nitrocarburising. The tool is placed in a gaseous medium in a closed space (5...
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WO/2000/006316A1 |
In an improved process for drawing metal wires and a tool for actuating the process, a metal wire (5) is coated with a thin surface layer (7) of lubricant and subsequently drawn, gradually in a series of single drawing operations. In a f...
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WO/2000/006330A1 |
A die for producing an article by drawing/extruding with high precision and quality maintained for a long time by forming, on a machined material slide contact die surface (104a), a modified layer (108) of an electrode wear fused substan...
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WO/2000/005006A2 |
An apparatus is provided for forming a tubular fitting from a blank tube having an interior. The apparatus includes a right die plate (16), a left die plate (18), a lower die plate (12) and an upper die plate (14). The right die plate (1...
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WO/1999/054065A1 |
A draw tool (15) for grooving the inner wall of tubing (17) in which a tool body has longitudinally extending teeth on the surface thereof wherein the teeth are comprised of an approach portion (30) in which the teeth are shaped to defin...
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WO/1999/054066A1 |
The invention relates to the coating and shaping of strand-shaped metallic material by drawing, wherein lubricants in solid to liquid state are used. The invention enables high-performance shaping and substantially reduces the number of ...
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WO/1999/039848A1 |
A forming tool for extrusion has a die (5), which has a forming cavity (6) having at least one critical reference value. The die (5) is surrounded by a biasing ring (8), which bears against it with radial pre-stress. The die (5) and the ...
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WO/1999/038625A1 |
The invention relates to a method and device for the deformation by hydrodynamic drawing of multi-layer composite wire (8) by means of lubricant-supplied multiple drawing machines. According to said method, before the multiple drawing ma...
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WO/1999/015294A1 |
A method of bonding together two cermet bodies comprises heating the two bodies preferably under vacuum to a temperature where a cermet material melts and encapsulates a bond interface between the two bodies; then subjecting the two bodi...
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WO/1998/003689A1 |
An improved hard wearing surface zone is being formed in a tungsten carbide-cobalt cemented carbide. This has been achieved by a post-sintering heat treatment in a boron nitride containing environment of a hard metal of a suitable compos...
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WO/1996/027458A1 |
A method of forming a profile on an element of elongate shape comprises passing the element through an ultrasonic resonating die.
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WO/1995/032818A1 |
A method of plastic forming of solid materials, especially during rolling, forging and extrusion, is presented. During plastic working there takes place an intrusion into the structure of the deformed material, thus changing the course o...
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WO/1995/031298A1 |
A seamless metal tube (11) is made by elongating an assembly of a tube blank (1) and a metal core (2) by mechanical working, and then stretching the core (12) plastically so that it diminishes in diameter sufficiently to permit its remov...
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WO/1995/028239A1 |
A bright-annealed highly smooth inner surface stainless steel pipe characterized in that the roughness of the inner surface is not higher than 1.0 'mu'm in terms of Rmax, and is suitably used as a clean pipe for a semiconductor manufactu...
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WO/1995/019114A1 |
A wire reinforcement (18) for women's garments designed to support the breasts exhibits an axial cross section with a long axis (19) and a short axis (20) perpendicular to the long axis. The long axis has a length D1, and the short axis ...
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WO/1994/015731A1 |
A wire drawing die assembly (10) has removable pressure (14) and draw (18) nibs held in screw-together holders (12, 16). The pressure nib (14) projects somewhat from its holder and presses the draw nib (18) into a converging passageway (...
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WO/1994/005439A1 |
Adjustable re-usable ceramic (eg. PSZ) inserts (5) for rubbing dies in wire or roll straightening machines are mounted in medium tensile steel holders (40). Each holder (40) has a bore (44) machined to a very smooth finish and each die i...
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WO/1993/016343A1 |
Described is a material handling apparatus for processing heated formed ferrous metal products and/or glass products comprising a face centered cubic crystal intermetallic alloy of a metal aluminide having the property of withstanding re...
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WO/1992/017148A1 |
The invention relates to an equipment for manufacturing subcutaneous capsules. The capsules are produced by cutting from a silicone tube lengths in excess of the final capsule length. The lengths are arranged into rows including a define...
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WO/1991/003423A1 |
A material of manufacture comprising sub-micron particulate amorphous titanium diboride formed by a process which comprises the steps of forming a powdered reaction mixture of titanium oxide, boron oxide and magnesium, exothermically rea...
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