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JP2007185698 |
To manufacture a square wire with a small drawing force/a large draft.A pair of two split dies (10a, 10b) for forming a square wire face each other. A round wire (M0) is passed through a square hole formed by first reduction triangular g...
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JP2007185711 |
To provide a steel wire for spring having excellent workability when the spring is formed.The steel wire for spring 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 surfac...
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JP2007182610 |
To provide a stainless steel wire for a spring, which is excellent in workability when it is formed into the spring although it does not contain nickel, and to provide a coil spring.The stainless steel wire for the spring is obtained by ...
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JP2007181872 |
To provide a manufacturing method of a small diameter metal pipe capable of easily and effectively obtaining a small diameter metal pipe having an ultrafine diameter and a thin wall.In the method of manufacturing the small diameter metal...
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JP2007175741 |
To provide a wire drawing method for a hard steel wire where the embrittlement of a wire can be suppressed even by wire drawing at a high working degree.Regarding the continuous wet type wire drawing device 1 for a fine hard steel wire i...
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JP2007167901 |
To provide a wire drawing method and a wire drawing device capable of simplifying a wire drawing structure, reducing an installation space of the device, winding a wire in a non-overlapping manner, preventing any damage of the wire, and ...
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JP2007172928 |
To provide an extra fine insulated wire and a coaxial cable having high strength characteristics and low resistance characteristics (high conductivity) compatible with each other, not easily causing the lowering of strength under a therm...
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JP2007167878 |
To provide a high carbon steel wire production method for producing a high carbon steel wire of high quality by dry type wire drawing while seizure to a die is easily and securely prevented.In the production method, when a high carbon st...
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JP2007165151 |
To provide a core wire for an Nb3Sn superconductive wire and the Nb3Sn superconductive wire which can be manufactured at a low cost, in which high critical current density can be achieved, and which has high distortion resistance and sup...
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JP2007152398 |
To provide a manufacturing method for a copper-clad aluminum wire having a high adhesiveness between a copper layer and an aluminum wire, in which the peeling of a copper layer and the breakage of a wire in wire drawing occur less freque...
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JP2007144489 |
To provide an automatic stock tube extraction system capable of correctly guiding a plug rod to a stock tube, and consistently guiding the stock tube to a die by a simple mechanism.A stock tube 8 fed to a stock tube feed mount 2 is house...
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JP2007131945 |
To obtain a wire rod having excellent wire drawability, and to inexpensively provide a steel wire using the same as the stock with high productivity in a high yield.A high steel wire rod having specified components is heated to a specifi...
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JP3960069 |
To provide a heat treatment method by which an oxide film of two- layer structure capable of suppressing elution of Ni in a high-temperature water environment can be formed with certainty and high efficiency on the internal surface of an...
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JP2007125617 |
To provide a simple method and a device for descaling a metal wire rod by which an oxide film or the like on the surface of a stretched metal wire rod is securely removed.A metal wire rod such as a steel wire 7 or the like is passed in a...
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JP2007125588 |
To provide a seamless steel tube having high durability, and a seamless steel tube manufacturing method capable of manufacturing the seamless steel tube with excellent production efficiency and high quality at low cost.The seamless steel...
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JP3959380 |
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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JP3959385 |
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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JP2007118067 |
To provide a method for manufacturing a wire material for steel cord, which can surely reduce tensile residual stress of the wire at low cost, without reducing productivity, in a wire drawing process of the wire to be used for a steel co...
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JP2007118037 |
To provide a high dimensional accuracy tube manufacturing method capable of forming a tube of the excellent dimensional accuracy by reducing the decentration and uneven thickness of the tube of large decentration and uneven thickness.Whe...
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JP3954338 |
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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JP2007111767 |
To provide a method for attaining high strength of a steel wire with good ductility.In the invented method, a high-carbon wire rod containing 0.85-1.00 mass% carbon is subjected to a first wire drawing step at a predetermined drawing rat...
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JP2007111748 |
To provide a capstan for a wire drawing device capable of preventing troubles such as surface damages to a wire caused by peeled plating and damages to a die in advance, preventing surface damages caused by wires overlapping each other w...
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JP3945080 |
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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JP2007092852 |
To provide a method for manufacturing at low cost a brake shoe having a shape of circular arc economically and through simple procedures being free of gap generation in the central part of the top surface having a T-shape by lessening th...
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JP2007092853 |
To provide a method for manufacturing at low cost a ring-shaped brake shoe economically through simple procedures being free of gap generation in the central part of the top surface having a T-shape by lessening the materials to be dispo...
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JP3940474 |
To provide a tungsten wire, its manufacture method and a filament which are superior in shock resistance by suppressing fragility. In this tungsten wire 1, a weight ratio of oxygen to carbon 3 in a surface is 4 or more, a manufacture met...
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JP3938240 |
To produce a highly strong steel wire having such excellent ductility as scarcely breaking even in a process for drawing the wire and hardly deteriorating the ductility even in a process for twisting the wire and further in a process for...
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JP2007077555 |
To obtain a high-strength wire rope that has a low Yoriberi value (value determined by a reduced load at break of wire rope by twisting), is thin and lightweight and has high load at break.The high-strength wire rope is obtained by subje...
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JP2007077444 |
To improve the rust resistance of a ferritic stainless steel wire which has been inferior by controlling and prescribing its surface properties without changing the components therein, so as to secure stable rust resistance, thus to rema...
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JP2007069230 |
To provide a method by which a brass-plated steel wire excellent in adhesive property is stably manufactured without using an expensive sintered diamond die.A wire drawing pass 12Z in the final stage of a wire drawing mill for drawing a ...
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JP2007061897 |
To manufacture a stainless-steel-claded copper wire of high quality, with good productivity.The manufacturing method for a stainless-steel-claded copper wire of high quality includes; (1) a step of preparing a copper strand as a core mat...
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JP2007054890 |
To provide a method of manufacturing a jointed flux cored wire for welding stainless steel which is excellent in feeding properties and good in defect resistance.This method is about a method of manufacturing a jointed thin (0.9-1.6 mm i...
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JP2007054882 |
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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JP2007054883 |
To provide a method for efficiently manufacturing a pipe with high dimensional accuracy so as to prevent the crush of a leading end thereof, which method can efficiently and stably manufacture the pipe with high dimensional accuracy by p...
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JP2007054788 |
To provide a hydrogen-permeable alloy membrane which is excellent in the performance of selectively permeating/separating hydrogen from mixed gas containing hydrogen, applicable to a hydrogen gas refining/separating device for a fuel cel...
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JP3922026 |
To inexpensively provide a steel wire rod which has a reduced variation of strength, and is suitable for a steel cord used as a reinforcing material for an automobile radial tyre, and a steel wire obtained by using the steel wire rod as ...
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JP3920581 |
To provide a method of efficiently manufacturing a thick-walled fine diameter tube which is appropriately usable as a fuel injection pipe for a diesel engine, and has the smooth inner peripheral surface without defects. In the method for...
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JP2007046102 |
To provide an oxygen-free copper wire which has low semi-softening temperature and whose manufacturing cost is reduced and also to provide its manufacturing method.The oxygen-free copper wire with low-temperature softening property has a...
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JP3915074 |
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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JP2007042455 |
To provide a manufacturing method for obtaining a primary composite for manufacturing a Nb3Al superconductive wire rod wherein wire disconnection is hardly generated until the diameter is reduced by surface reduction working, consequentl...
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JP2007029998 |
To provide a jig for inserting a wire rod into a die, with which even an unskilled person easily inserts a wire tip into the inside of a die in a drawing process of an extremely fine wire.The jig is provided with: die holding means 3, 4,...
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JP2007035379 |
To provide a collector substrate for a battery having a characteristic, not seen in the past, facilitating a perfect surface treatment without having any burr by extending and rolling a various kinds of wires, and improved in rustproof e...
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JP2007029965 |
To allow a high carbon steel wire to wire drawing without damaging its toughness, and to obtain a PC steel twisted wire whose tensile strength is increased compared with the conventional one by twisting the steel wires obtained by the wi...
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JP2007023363 |
To provide a new Zn-Al or Zn-Al-Mn alloy plated steel wire, wherein problems of the corrosion resistance and the surface cleanliness are solved and high deposit content not to be expected before is attained, and its manufacturing method....
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JP2007023373 |
To provide a method for efficiently producing a high strength extrafine flat wire having high strength and excellent dimensional stability.The method for producing a high strength extrafine flat wire of stainless steel is characterized i...
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JP3908974 |
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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JP2007014986 |
To provide a manufacturing method of a base stock made of an alloy which has high dimensional accuracy while preventing the generation of intergranular state and stress cracking.The manufacturing method of the base stock made of the allo...
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JP3903899 |
To provide a copper alloy conductor with high conductivity and high strength, for a train wire. The method for manufacturing the copper alloy conductor for the train wire comprises hot-rolling a copper alloy material into a wire rod and ...
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JP3900990 |
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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JP2007000906 |
To provide a high dimensional precision pipe manufacturing method capable of manufacturing a pipe of high straightness by preventing the pipe on a die outlet side from being bent when manufacturing the high dimensional precision pipe by ...
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