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JP4214539B2 |
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JP2008290108A |
To prevent the damage of an insulating coating layer of an electric wire in the deforming work from a round electric wire to a deformed electric wire with a die.This die is a die 10 for working the electric wire with which the round elec...
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JP2008290121A |
To provide a method of manufacturing a copper wire by which the breakage of a wire during manufacturing is prevented and also the copper wire excellent in surface quality is manufactured.In the method of manufacturing the copper wire of ...
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JP2008290107A |
To prevent the damage of an insulation coating layer of an electric wire when a round electric wire is deformed into a special shape electric wire by means of a die.A round cross section electric wire 20 having an insulation coating laye...
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JP4174236B2 |
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JP2008238210A |
To provide a method and a device for manufacturing a copper wire with which the generation of surface flaws and the occurrence of break in the copper wire.In this method for manufacturing the copper wire, when manufacturing the copper dr...
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JP4152681B2 |
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JP4102962B2 |
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JP4100919B2 |
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JP2008027706A |
To provide a die for manufacturing superconducting wires capable of easily manufacturing superconducting wires, and a method of manufacturing the superconducting wires using the die for manufacturing superconducting wires.Of the NbTi sys...
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JP4036044B2 |
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JP4029655B2 |
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JP4016894B2 |
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JP4010555B2 |
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JP2007268556A |
To provide a method for drawing a magnesium alloy tube in which a reduction ratio per pass can be made higher. The method for drawing the magnesium alloy tube comprises passing a tube material consisting of a magnesium alloy into a die h...
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JP2007218566A |
To prevent cracking in a groove or a fin during manufacturing. The ratio (R/δ) of the circular radius R mm of a bottom angular part (2b) of a groove (2) for the bottom width δ mm of the groove (2) is 0.10-0.25, and the ratio (r/δ) of ...
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JP3959380B2 |
To provide a manufacturing method for a seamed welding wire including flux having a suitable feeding property and a low hydrogen characteristic, and superior wire-drawing property. The manufacturing method for the wire including flux hav...
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JP3959385B2 |
To provide a highly efficient method for manufacturing a solid wire for welding having no copper plating, which method can draw a raw steel wire at a high speed by means of a roller die to a wire having a diameter of a product or having ...
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JP3954338B2 |
To provide a high strength steel wire which has high strength and sufficient ductility, and is therefore has excellent strain age embrittlement resistance and longitudinal crack resistance, and to provide a production method therefor. Th...
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JP3945080B2 |
To improve the work efficiency in manufacture and also to manufacture a long size tube by arranging a plug in the center of a die, forming grooves in the axial direction of the outer periphery of the plug, forming a special shape tube ha...
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JP3915074B2 |
To provide a cold-forming method for a metallic tube of which the wall thickness in the cross section is uneven so as to be different in a predetermined portion in the circumferential direction and in other portions, and to provide a met...
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JP3908820B2 |
To improve the stability, the high speed rotation property, and the durability of the working tool by providing a plate-like ball holder for holding balls in prescribed positions. By using an adjusting plate 3, a mutual distance in the a...
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JP3908974B2 |
To provide an internally grooved pipe and its manufacturing method providing good machinability in manufacturing a heat exchanger by avoiding variation of the pipe length after enlargement of the pipe. A retaining die 3 is moved at const...
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JP3900990B2 |
To obtain a manufacturing method for an uneven thickness tube which is made lightweight and is properly worked by bending and bulging. The uneven thickness tube is manufactured by inserting a core bar 6 having an expanding plug 8 the out...
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JP2007054882A |
To provide a method for efficiently manufacturing a pipe with high dimensional accuracy, which method can efficiently manufacture the pipe with high dimensional accuracy by preventing the generation of buckling and seizure defects by red...
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JP2007054865A |
To provide a die device for wire drawing by which a metallic wire having high straightness is manufactured.The die device 10A for wire drawing is provided with a wire-drawing die 12 and a spherical sliding bearing 14. In the wire-drawing...
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JP2007044746A |
To provide a wire drawing die capable of enhancing strength of a die member, and considerably reducing occurrence of fatigue damage, cracks or the like.The wire drawing die 10 comprises a die member 14 and an annular member 16a. A die ho...
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JP3871597B2 |
To provide an internally grooved heat transfer pipe excellent in the property of contact between the outer surface of the pipe and fins and in heat- transfer performance, and also to provide a manufacturing apparatus for the pipe. The in...
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JP2007000907A |
To provide a high dimensional precision pipe manufacturing method with high efficiency and stability for stably manufacturing a high dimensional precision pipe with high efficiency by preventing occurrence of seizure flaw or the like whe...
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JP2006346689A |
To provide a method for consistently manufacturing a high dimensional precision pipe capable of manufacturing the high dimensional precision pipe with the consistent dimensional precision when manufacturing a large amount of high dimensi...
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JP2006346690A |
To provide a method for consistently manufacturing a high dimensional precision pipe, with high efficiency capable of manufacturing the high dimensional precision pipes with the consistent dimensional precision and high efficiency while ...
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JP3841864B2 |
To enable cost effective production with a simple structure by making universal roll assemblies for round tubes and profiled tubes exchangeable. The removal of the universal roll assemblies may be executed simply by lowering chocks 9 and...
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JP2006297431A |
To provide a wet type metal wire drawing method capable of enhancing the lubricity by reducing the emulsion diameter, and preventing ingress of foreign matters such as metal powder, plating powder and degraded oils in a wire drawing die....
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JP2006263777A |
To provide a die cleaning device for a wire-drawing device capable of preventing a die hole from being stuffed by reliably removing powder-like scrap of thin wires generated during the drawing from the die hole.The cleaning device 1 clea...
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JP2006263775A |
To provide a die holder for a wire-drawing device capable of reliably performing the positioning by providing the consistent urging force to a die for a long time, and preventing powder-like working scraps from being stuffed in a die hol...
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JP3829727B2 |
To easily manufacture a pipe with an internal groove having a large lead angle. In the manufacturing device 1 for the pipe with the internal groove, the direction B of revolution of steel balls 7 and the direction A of rotation of a groo...
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JP2006212661A |
To provide an inside grooved tube manufacturing device for which the speed of inside grooving work of a metal tube is increased without forming any incomplete groove or damaging an outer surface of the tube.In the inside grooved tube man...
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JP3803335B2 |
To provide a die holder capable of efficiently adding the ultrasonic vibration to a die and enhancing the heat radiation of the heat generated during the ultrasonic drawing to add the ultrasonic vibration in the same direction as the dra...
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JP2006175485A |
To provide a highly efficient manufacturing method of a pipe having high dimensional accuracy by which the pipe the dimensional accuracy of which is remarkably higher than that of a conventional pipe is efficiently manufactured.In the ma...
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JP2006175484A |
To provide a high efficiency manufacturing method of a pipe having high dimensional accuracy and excellent in surface quality by which the pipe excellent in the surface quality and having remarkably higher dimensional accuracy than that ...
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JP3794341B2 |
To provide a tube with a grooved inner face which is manufactured at high yield without causing break by a roll rolling method and a manufacturing method for it. A tube 1 which consists of copper or copper alloys, is an unannealed H-mate...
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JP2006169639A |
To provide the continuum being comprised of plural parts having physically different properties and its manufacturing method.The invention presents how to make use of injection molding process to form the continuum comprised of the plura...
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JP3789856B2 |
To provide a method of inexpensively producing a soft wire rod of carbon steel for machine structural use, alloy steel for machine structural use and high carbon chromium bearing steel for cold working in which flaws are warranted over t...
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JP3786256B2 |
To provide a highly straight wire free from deep spiral flaws of narrow pitches by a corrective blade or corrective die and having high straightness like a radius of curvature of 4,000 mm or over, and to provide a method for manufacturin...
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JP3780432B2 |
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JP3777166B2 |
To realize high strength extra fine steel wire with excellent strandability and fatigue characteristic. This method to produce the high strength extra fine steel wire has a wire-drawn pearlite structure to include one or more of C, Si, M...
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JP2006122936A |
To provide a wire having excellent lubricity capable of suppressing gnawing, cracking or the like during the header working, and its manufacturing method.A surface of the wire 10 is subjected to the shot-blasting. A chemical-converted fi...
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JP2006122993A |
To provide a rough surface forming roller whose friction coefficient is high, productivity is improved, and cost is low, and a rough surface forming apparatus, a rough surface wire, and a rough surface forming method.The rough surface fo...
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JP3772118B2 |
To provide a scalping chipper of a metal wire capable of preventing generation of ring marks on the circumferential surface of the wire by suppressing any vibration of a blade tip during the scalping operation. A blade tip constitution p...
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JP3770124B2 |
To provide a working method by which a tube having the grooved inside surface the lead angle of the internal grooves of which is larger is easily obtained. A floating plug 2 and a grooving plug 4 which is connected to the floating plug 2...
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