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JP3524907B2 |
In the metal billet to be used for hot dilation forming, a forward side with respect to the pressing direction has a quadrate section and its diagonal length is not more than an inner diameter of a container. Moreover, a backward side wi...
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JP2004122156A |
To provide an apparatus for producing an internally grooved tube in which an internal groove with a stable shape in a longitudinal direction can be formed at a low production cost, and to provide a method for producing an internally groo...
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JP2004113737A |
To provide a precious metal material for personal adornment with a long cylindrical row member closely integrated with the inside in the axial direction of a pipe-shaped precious metal member.The precious metal material 12 consists of th...
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JP3515510B2 |
To provide a working device for continuous shear deformation with which a shear-deformed base stock is mass-produced. This working device for continuous shear deformation is constituted of a die 1 for making the base stock shear-deform b...
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JP3513004B2 |
To reduce the rate of quality defects of a current collector caused by the entrainment of particles of foreign matter, the current collector being inserted into the negative electrode gel of an alkaline manganese battery to collect curre...
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JP3511974B2 |
To eliminate shape defects in extruded shape such as bends which are generated on an extruded shape by primary and secondary straightening and also to obtain the extruded shape having the uniform proof strength and cross-section shape. A...
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JP2004074196A |
To provide a method for continuously drawing a wire after welding a preceding steel wire and a succeeding steel wire in order to draw a plurality of wires continuously when moreover drawing the steel wire.In the continuous wire drawing m...
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JP3503724B2 |
To obtain a cold drawn wire which is free of degradation in quality by providing another die for finishing wire drawing after a die for finishing drawing and an eddy current test equipment, and changing the reduction rate of area of the ...
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JP2004066271A |
To provide a manufacturing method of a steel cord excellent in adhesive property with rubber by suppressing and reducing the generation and the increase of a lubricating film and an oxide film which are adhesion inhibitors generated at a...
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JP2004066298A |
To provide a steel code for reinforcing rubber products having high adhesion, and the manufacturing method.When the steel code for reinforcing a rubber product is manufactured by twisting some filaments which are manufactured by wet wire...
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JP2004066316A |
To provide a manufacturing method of a steel wire for reinforcing rubber goods by which a lubricating film produced when performing wire drawing of the brass plated steel wire with a multistage wet wire-drawing mill is secured, the hinde...
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JP2004059957A |
To provide a method for producing a member for linear motion bearing used under high temperature atmosphere.This method for producing the member for linear motion bearing for high temperature, is as following. Few times of cold-drawings ...
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JP2004055179A |
To provide a heating conductor and a terminal machining method for it capable of exhibiting performance better than that of a braided heating conductor and greatly improving productivity by stranding a copper-silver alloy wire material i...
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JP3498312B2 |
A cold roll forming method for reducing the diameter of a metal pipe and a metal pipe product having the diameter reduced by such method are disclosed, wherein the method includes the steps of passing a raw metal pipe through a set of pr...
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JP3496827B2 |
To inexpensively provide a continuously connected long-length composite vapor depositing material free from the intrusion of a mixed powder outflow preventing plug or the like in a short process with high yield. An aluminum tube is provi...
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JP2004027300A |
To provide a method of producing a magnesium alloy bar wire rod having high ductility and high tensile strength.The method is provided with a temperature raising stage where the temperature of the material to be worked is raised to a dra...
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JP2004017114A |
To provide a new production method for an alloy wire material which doesnot need heating to be machined.A die 14 is heated to not less than 150°C when the magnesium alloy wire materials are produced by drawing with the die 14.
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JP3488128B2 |
To easily charge a coil in a narrow installation area from a floor level onto a turntable by pulling out a wire from a coil along a circular arc following its specific arc cast according to rotation of a power driven type capstan and win...
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JP3487957B2 |
PURPOSE: To improve the raw wire drawability of a hot rolled wire rod. CONSTITUTION: This wire rod excellent in raw wire drawability is the one, in which, in a steel wire rod of 5 to 16mm with ≥0.6% C content obtd. by hot rolling, the ...
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JP3488205B2 |
To provide an extra fine steel wire for a spring which has excellent heat resistance and is suitable as a spring of a contact probe, or the like. The extra fine steel wire for springs contains, by mass, 0.7 to 1.0% C, 0.5 to 1.5% Si and ...
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JP3487956B2 |
PURPOSE: To provide a high carbon wire rod to be descaled, excellent in wire drawability. CONSTITUTION: In the steel wire rod prepared by hot rolling and having ≥0.6wt.% C content, the shape of cementite existing in the cross section o...
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JP3489359B2 |
To increase the height of a fin, to reduce the apex angle of the fin, and to widen the helix angle of the grooves against the tube axis by making the original tube out of one with internal linear grooves or spiral grooves and drawing wit...
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JP2004009207A |
To provide a high speed and inexpensive electrode wire for wire electric discharge machining which is particularly an ultra-fine electrode wire having an outer diameter of 0.03-0.07mm as compared with an electrode wire having a two-layer...
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JP2004003733A |
To provide a grooved heat transfer pipe and a heat exchanger having this heat transfer pipe by which performance of the heat transfer pipe at a low flow rate is improved, while improving the performance of the grooved heat transfer pipe ...
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JP3479724B2 |
PURPOSE: To produce a metallic wire for reinforcing a rubber product excellent in strength, toughness and wire drawability at a low cost by subjecting a low- medium carbon steel wire rod having a specified compsn. to heat treatment, ther...
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JP3477019B2 |
To provide a substance exhibiting good thermoelectric characteristics over a wide temperature range from 100K or below to about 1000K. The thermoelectric, conversion material contains at least one kind of first element selected from a gr...
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JP3476321B2 |
To improve the scale adhesion of a wire rod for steel wire at the time of trasporation and its scale peeling characteristic at the time of mechanical descaling. This wire rod for steel wire has a composition consisting of, by weight, 0.6...
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JP3474393B2 |
To provide a method for manufacturing welding wire excellent in feedability by forming roughness with recessed parts on the wire surface as lubricant retainer. In the method for manufacturing welding wire to reduce wire stock through a g...
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JP3474378B2 |
To provide a manufacturing method of a wire for gas shielded metal arc welding which is free from any surface flaws or breakage of the wire during the drawing work, and extremely excellent in wire feedability even when a long conduit cab...
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JP3474396B2 |
To obtain a drawing method for a thin flux cored wire by which the wire breakage is not generated even at the time of high-speed drawing, which is excellent in productivity and whose cost is lower by drawing the wire making the reduction...
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JP2003342696A |
To provide a guide wire core material which is excellent in corrosion resistance and, even when its diameter is small, is excellent in torque transmission properties. This guide wire core material comprises 0.08 wt.% or less C, 3.0-5.0 w...
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JP3470795B2 |
To provide a copper-coasted aluminum wire in which generation of fine crackings due to the stress put on a copper film are prevented at the time of drawing, the aluminum wire is hardly exposed at the time of coiling, and sufficient relia...
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JP2003334607A |
To provide a skin peeling die for a fine wire designed to accurately carry out centering without a centering device or skillfulness and capable of preventing disconnection or defects from being caused.This skin peeling die for the fine w...
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JP3466758B2 |
PURPOSE: To obtain the metal oxide wire not causing the lowering of a critical electric current even in a magnetic field, strong in mechanical deformation, and improving the density of the critical electric current. CONSTITUTION: The met...
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JP2003320413A |
To provide a shape wire drawing die by which a drawing resistance is reduced at the time of the shape wire drawing process in the manufacture of a contact wire.In the shape wire drawing die 2 for forming a groove 11 along the longitudina...
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JP2003320411A |
To provide a method for manufacturing a pipe with a ultramicroscopic internal diameter of 20 μm having an inside face which is smooth and unaffected by a highly-corrosive medical agent.A gold pipe made of gold or a gold alloy is fitted ...
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JP2003311316A |
To provide a method and a device by which a flat spiral wire is manufactured simply and easily.Compressive force is added to the circular coil-shaped spiral wire S0 from both sides with rolling rolls 2A, 2B and the coil is plastically de...
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JP2003311544A |
To provide an electric wire designed to suppress the increase in the number of vibrations during electric discharge machining which is an inhibiting factor for stability of electric discharge machining and also designed to eliminate disc...
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JP2003311543A |
To provide a method for manufacturing an electrode wire for wire electric discharge machining which enables adjustment of each layer thickness of a base material of the electrode line to an arbitrary layer thickness by applying diameter ...
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JP2003311318A |
To provide a tube drawing method of a bottomed cylinder by which the material yield of a clad having layers consisting of especially rare metal and a superconducting material which is generally expensive is improved.The bottom of the cyl...
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JP3460525B2 |
To attain excellent drawability of rectangular shell by regulating Lankford values in respective directions of a steel sheet so that they satisfy specific inequalities. In this steel sheet, Lankford values in respective directions of the...
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JP3461604B2 |
PURPOSE: To provide a method for producing a steel wire extremely small in power loss and used for reinforcing in an aluminum stranded wire for power transmission. CONSTITUTION: This is a method for producing a steel wire small in power ...
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JP3457652B2 |
To provide a wire for arc welding whose residual stress distribution is uniform by controlling a contact area generated by the contact of the wire and a die within a certain limit and by decreasing the deviation of the hardness of the wi...
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JP2003290822A |
To provide a method and device for manufacturing a lock bolt for civil engineering that has a recess for expansion without performing drawing work to a large machining degree in the center of the tube, with both tube ends left in the rou...
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JP2003290817A |
To provide a manufacturing device for a seamless tube with a grooved inner face with which the seamless tube with the grooved inner face having the large lead angle of the groove is manufactured at high productivity by smoothly rotating ...
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JP2003291056A |
To provide a wire cutting method for any object to be cut, a cutting wire and a manufacturing method for the wire, capable of enhancing the cutting efficiency and accuracy of the object and suppressing generation of a wire severance.If t...
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JP2003290814A |
To provide a method for producing metallic fibers in which an expensive extra-low carbon steel is unnecessary to use and carbon steel is not converted to stainless steel.In this method and an apparatus for producing a composite material ...
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JP2003290815A |
To manufacture a thin metallic tube which has high accuracy of the inside diameter, good surface roughness of the inside surface and thickness of at least two times the inside diameter and the inside diameter of which is ≤1 mm without ...
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JP2003290818A |
To provide a manufacturing device for a tube with a grooved inner face composed of a rolled seamless tube with which the rolling load of the rolling rolls during rolling is constant and the occurrence of a change in the groove shape and ...
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JP3453567B2 |
To provide a non-plated wire for welding which is excellent in feedability and arc stability and is smaller in the amount of the fume to be produced. This non-plated wire is 0.51 to 0.84 in the value of LD/LT defined by equation (1) if t...
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