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WO/2009/081655A1 |
A production method which can form helical ribs stably by reducing trouble at the time of forming the helical ribs of an internally-ribbed steel pipe by drawing. When an internally-ribbed steel pipe having a plurality of helical ribs in ...
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WO/2009/081639A1 |
A production method for forming helical ribs stably by reducing trouble when the helical ribs of an internally-ribbed steel pipe are formed by drawing comprises an acid pickling step for removing oxidation scales and rust on the surface ...
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WO/2009/081664A1 |
A high-strength highly heat-conductive copper alloy pipe having an alloy composition which contains 0.12-0.32 mass% cobalt, 0.042-0.095 mass% phosphorus, and 0.005-0.30 mass% tin, the remainder being copper and incidental impurities, and...
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WO/2009/066659A1 |
A process for tungsten wire production in which wire drawing which comprises inserting a tungsten material into a drawing die and passing the material through the die is repeatedly conducted to finally produce a tungsten wire having a wi...
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WO/2009/064060A1 |
Disclosed herein is a method of manufacturing a copper clad aluminum busbar, comprising: (a) processing an aluminum bar into a rod pre-treating the aluminum bar; (b) inserting the aluminum bar into a copper tube to prepare a composite ba...
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WO/2009/064217A1 |
The invention is used for forming the structure of ultra-fine grain semi-finished products and for increasing the complex of mechanical properties of long-length metal materials, in which the length-diameter ratio is greater than 100, by...
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WO/2009/054385A1 |
A cold drawing device (1) comprises a front-stage die (10) and a rear-stage die (11) disposed rearward of the front-stage die (10) and having an outer diameter processing degree of 0.14-1.0% which is defined by expression (1). The front ...
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WO/2009/051037A1 |
A production method of a steel pipe with an inner rib which can form a spiral rib stably by reducing trouble at the time of drawing work for forming the spiral rib of a steel pipe with an inner rib. The spiral rib can be formed stably by...
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WO/2009/047688A2 |
One aspect of the invention concerns a steel tube drawing process in which a hot rolled seamless steel tube (10) of relatively large outside diameter and wall thickness is drawn down to a smaller outside diameter and wall thickness. The ...
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WO/2009/044186A1 |
Shape Memory Alloy tube is protected from damage during drawing, caused by galling-type interaction between the tube and high-carbon dies, by forming an oxide surface layer. This invention protects the tube internal diameter from oxidati...
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WO/2009/038201A1 |
Provided is a forming apparatus capable of shaping a shaping object by an extroll-forming method and a draw bench method. On a platform, a driving device and a shaping stand having at least one pair of shaping rolls or at least one pair ...
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WO/2009/037320A1 |
Drawing assembly (10) comprising two opposite and counter-rotating tracks (11), each consisting of a plurality of links (12) constrained to each other and each supporting a relative drawing clamp (13) which grips the product to be drawn ...
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WO/2009/033317A1 |
A method of producing copper clad aluminum wire, especially a method of producing copper clad aluminum flat wire, comprises process steps as follows, preparing a copper clad aluminum wire by clad-welding in atmosphere of inert gas, drawi...
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WO/2009/022547A1 |
A plug (1) has a first columnar portion (20), a tapered portion (30), and a second columnar portion (40). The first columnar portion (20) has an outside diameter D1. The second columnar portion (40) has an outside diameter D2 larger than...
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WO/2009/014000A1 |
A process by which high alloy steel tubes having not only corrosion resistance requisite to oil well pipes but also desired strength can be produced by selecting cold working conditions without excessive addition of alloying components. ...
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WO/2009/014001A1 |
A process which makes it possible to produce duplex stainless steel tubes having not only corrosion resistance requisite to oil well pipes but also desired strength by selecting cold working conditions without excessive addition of alloy...
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WO/2008/126387A1 |
Provided are an insulated electric wire manufacturing method, which can manufacture a conductor of a wider sectional shape stably according to the sizes than that of the method using a freely rotating rolling role and which can make all ...
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WO/2008/111200A1 |
A highly durable seamless steel pipe; a hollow spring utilizing the seamless steel pipe; and a process for manufacturing a seamless steel pipe in which such a seamless steel pipe can be manufactured while ensuring high production efficie...
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WO/2008/093466A1 |
A plated steel wire for PWS excelling in torsion property comprising, by mass, 0.8 to 1.1% C, 0.8 to 1.3% Si, 0.3 to 0.8% Mn, 0.001 to 0.006% N and 0.0004 to 0.0060% B provided that B in the state of solid solution is 0.0002% or more, an...
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WO/2008/062992A1 |
The present invention provides a method of producing a multi-gauge strip which has a thick portion and a thin portion which are continuously disposed along its length. The method of producing multi-gauge strips consisting of a relatively...
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WO/2008/034456A1 |
Disclosed is a method for forming hollow shafts, wherein the hollow shaft (1) is conveyed through a die (3) in a processing direction (2) and is fixed with a mandrel (4) in such a way that the hollow shaft (1) has a material flow velocit...
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WO/2008/032829A1 |
Disclosed is a technique for achieving high strengthening of a steel wire while keeping its good ductility. A high carbon steel wire material having a carbon content of 0.85 to 1.10 mass% is subjected to a first wire drawing process unde...
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WO/2008/025615A1 |
The present invention relates to a method for manufacturing a tube (12) for heat-exchangers. According to the present invention, the method includes the following steps: roll bending a tube from a metal strip (10) comprising at least one...
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WO/2008/023561A1 |
A nickel-plated stainless-steel wire which has satisfactory lubricity on tools and excellent processability. The nickel-plated stainless-steel wire is one produced by plating a raw stainless-steel wire with nickel and drawing the plated ...
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WO/2008/013179A1 |
An apparatus equipped with liquid storing tank (12) allowing metal wire rod (10) to pass through the interior thereof and with mixing nozzle (14) for emitting a jet of high-pressure liquid toward the metal wire rod (10), disposed so as t...
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WO/2008/009009A2 |
A rod or wire manufacturing system, a method for manufacturing a rod or wire, a method for heat treating of a rod' or wire, and a treated metal having an improved tensile strength are disclosed. The cooling unit includes at least one ada...
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WO/2007/136412A2 |
The present invention is directed to systems and methods for nanowire growth and harvesting. In an embodiment, methods for nanowire growth and doping are provided, including methods for epitaxial oriented nanowire growth using a combinat...
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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/2007/123081A1 |
In producing a wire for bead cords, a steel wire is first descaled. Subsequently, the steel wire descaled is subjected to a chemical conversion coating treatment by electrolysis to form a phosphate coating film on the steel wire. This st...
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WO/2007/114100A1 |
A useful process in which a steel material for obtaining a steel wire material reduced in the content of hard non-rollable inclusions and having enhanced drawability and enhanced fatigue characteristics is produced by adequately controll...
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WO/2007/111258A1 |
The quantity of S contained in designing steel component is reduced, a stretch reducer makes a rolling roll to have a hole type profile closer to a true circle in sizing rolling, and a pipe is made to have an appropriate profile ratio (r...
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WO/2007/111360A1 |
A wire drawing machine comprises a wire supply unit (20) with an unwinding bobbin (21) for unwinding a wire (11), a wire drawing unit (40) or units (40A-40F) drawing and reducing the diameter of the wire, and a wire winding unit (60) for...
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WO/2007/109612A2 |
A method for making superconducting material useful for forming electrolytic devices comprising the steps of establishing multiple valve metal rods in a primary billet of a ductile material; working the primary billet to a series of redu...
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WO/2007/102233A1 |
[PROBLEMS] To provide a brass plated steel wire for rubber article reinforcement that ensures unfailing enhancement of adherence between brass plated steel wire and rubber, and provide a process for producing the same. [MEANS FOR SOLVING...
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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/2007/068439A1 |
The present invention discloses a method for manufacturing a tube of copper or copper alloy (1), including: a) removing a surface oxidation layer from a tubular blank; b) rapidly rolling said tubular blank by means of a four-planet rolli...
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WO/2007/069497A1 |
Disclosed is a steel wire for spring which is obtained by drawing a steel wire which is coated with a phosphate at a coating amount of 3.0-5.5 g/m2. When the surface roughness of the steel wire for spring is represented by R and the wire...
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WO/2007/001362A1 |
A method for reducing the cross-sectional diameter of a radioactive californium-containing cermet wire (17) while simultaneously improving the wire diameter to a more nearly circular cross section. A collet fixture (15) is used to reduce...
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WO/2006/135266A1 |
The method of shaping various cross-sections on metal pipes, especially those used for lighting posts, wherein the pipe of uniform original diameter all over its original length is mounted in apparatus so, that its middle part is placed ...
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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/2006/126565A1 |
Methods of manufacturing an ultrathin wall metallic tube by cold working method capable of providing a marvelous wall thickness reduction. In the method of manufacturing the metallic tube by a cold pilger rolling mill, a raw tube is cold...
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WO/2006/091920A2 |
Adapters (1100) configured for affixation to the ends (62, 64) of existing spreaders (60) and rams to provide added performance and/o enhanced functions over those available with the current spreader (60) and ram structures.
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WO/2006/088138A1 |
A metal pipe is provided with a plurality of protruding sections which have a plurality of different heights, extend in an axial direction and are arranged in a circumference direction on an inner circumference plane. Even when a streak ...
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WO/2006/053590A1 |
The invention relates to a method for producing hollow shafts (11') comprising end sections (12', 16') with a larger wall thickness and at least one intermediate section (14) with a reduced wall thickness, from a tube (11) comprising a c...
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WO/2006/052002A1 |
The invention is directed to an aluminum pipe product method comprising an extrusion step for obtaining an aluminum raw pipe (10) and a drawing step for executing a drawing process of the aluminum raw pipe (10). Before executing the draw...
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WO/2006/046702A1 |
A production method of a seamless steel pipe in which uneven thickness likely occurring in a thin-wall seamless steel pipe can be controlled effectively. A billet soaked for a predetermined time at a predetermined temperature in a heatin...
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WO/2006/002613A1 |
The invention relates to a method for drawing an elongated workpiece (2). According to said method, the drawing forces required for the drawing process are exerted by means of at least one sprocket chain (13) that comprises at least one ...
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WO/2006/003833A1 |
Provided are a method for producing a magnesium alloy product which can produce a magnesium alloy product having high strength, and a magnesium alloy product, particularly a magnesium alloy wire, being excellent in strength. A molten mag...
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WO/2005/092533A1 |
The aim of the invention is to develop drawing machines for drawing a linear product to be drawn (10). To this end, a drawing machine is provided with a caterpillar-type drawing die (1) for drawing a linear product (10) through a drawing...
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WO/2005/080623A1 |
[PROBLEMS] A metal working method capable of continuously forming various metal elements that are increased in strength or ductility by micronizing a metallographic structure to thereby improve mass-productivity and reduce costs, and a m...
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