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JP6688615B2 |
To provide a high strength ultra fine steel wire excellent in stranded-wire disconnection resistance.There is provided a high strength ultra fine steel wire 10 having wire diameter of 0.18 to 0.45 mm and tensile strength of 3000 MPa or m...
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JP6686847B2 |
To provide a recovery device of which lowering of working efficiency can be suppressed when recovering a door pull.A door pull is provided on a rear end of a shank, and comprises a head which hooks on a front end part when performing dra...
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JP6686803B2 |
To provide a necking method of a duplex stainless steel pipe in which cracking is suppressed without performing solution heat treatment, and a duplex stainless steel pipe manufacturing method using the necking method.In a necking method,...
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JP6665538B2 |
To provide a steel wire drawing device capable of performing wire drawing to a wire-shaped steel stock from which a surface defect is removed, by a simple constitution; and to provide a steel wire drawing method therefor.A steel wire dra...
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JP6643112B2 |
To provide a method and a device for manufacturing a pipe with an internal spiral groove by which a large torsion angle is given to a pipe and bulk production of such a pipe is enabled.According to a method for manufacturing a pipe with ...
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JP6644227B1 |
To provide a stranded conductor capable of producing a stranded conductor having a cross-sectional shape close to a perfect circle without compression or with a low compressibility. It has a central layer 11 formed by arranging three inn...
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JP6631328B2 |
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JP6628694B2 |
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JP6615737B2 |
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JP6614006B2 |
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JP6596186B1 |
A wire of a platinum-based material is coated with gold or a gold alloy, and wire drawing is performed with a die containing carbon. The fine wire produced in this way is coated with gold or a gold alloy, and the coverage of gold or the ...
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JP6584027B2 |
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JP6584765B2 |
The electrode wire for electrical discharge machining according to this invention comprises: an external layer including β-brass and γ-brass; and a core having an undulating shape formed at a boundary surface with the external layer. T...
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JP6573766B2 |
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JP6572783B2 |
To provide a plated steel wire excellent in adhesiveness with a rubber without deteriorating productivity, less in deterioration of adhesive strength and excellent in adhesive with the rubber.There are provided a plated steel wire having...
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JP6573172B2 |
Provided are: a copper alloy wire having an excellent electrical conductivity, a high strength, and an excellent elongation; a copper alloy stranded wire including the copper alloy wire; an electric wire including the copper alloy wire o...
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JP6567984B2 |
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JP6567594B2 |
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JP6563520B2 |
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JP6558588B2 |
The invention relates to a process for producing a multilayer pipe (1) from a tubular element having a metallurgical bond comprising at least one outer pipe (10) of metallic material and one inner pipe (20) of metallic material arranged ...
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JP6558255B2 |
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JP6555812B2 |
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JP6555813B2 |
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JP2019098352A |
To provide a method for manufacturing a tube with a hollow step that can manufacture the tube with a hollow step easier than before, and can achieve characteristics of strength and dimension accuracy which are equal to or higher than con...
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JP2019099865A |
To provide a single wire for aluminum thin wires, capable of reducing friction with a dice and excellent in drawing processability.The single wire for aluminum and aluminium alloy wires has zinc or zinc base alloy coated on the surface a...
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JP2019053985A |
To provide a precursor used for manufacturing a superconducting wire rod capable of providing a superconducting wire rod high in critical current density.There is provided a wire drawing processed article of a composite tube which is a p...
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JP6475099B2 |
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JP2019503868A |
The present invention relates to a method for manufacturing a high-pressure tube (1), in which case a metal inner tube (2) and a metal outer tube (3) are drawn together through a first drawing die (4a). .. In this regard, the outer diame...
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JP6467980B2 |
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JP6439222B2 |
A method of producing an inner spiral grooved tube using a first drawing die using first and second drawing dice and a revolving flyer is provided. The method includes a first twisting-drawing step to form an intermediate twisted tube by...
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JP6425919B2 |
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JP6396279B2 |
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JP6393839B2 |
This method of manufacturing a thin metal tube is characterized in including: a tube making process of shaping a metal starting material tube by machining a flat metal plate; a drawing process of machining the metal starting material tub...
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JP6391140B2 |
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JP6382388B2 |
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JP6379243B1 |
To provide an electric wire having excellent magnetic characteristics and not easily damaged even when a thick layer of magnetic metal is formed, and a method for manufacturing the electric wire. A step of mechanically polishing an inner...
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JP6372816B2 |
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JP6358720B2 |
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JP6354481B2 |
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JP2018103233A |
To provide a new composite metallic wire that establishes compatibility between high durability and a low cost by making a non-discharge part from an inexpensive Ni-based alloy, while causing a discharge part provided with a Pt-based all...
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JP6345835B1 |
To provide a spherical body manufacturing apparatus and manufacturing method capable of performing high-precision flaw detection inspection without increasing equipment cost. A sphere manufacturing facility obtains a sphere 2 from a long...
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JP2018089640A |
To provide an inner-spiral grooved tube which is excellent when assembling a heat exchanger together with a radiation fin, and does not generate a distortion in the heat exchanger after assembly.An inner-spiral grooved tube made of alumi...
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JP2018083231A |
To provide a light-weight metal reinforcement body which has high mechanical strength, particularly, has resistant to corrosion.A method of drawing a steel wire applies to a wire having a mass rate C of carbon such that 0.4%≤C≤0.74%....
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JP6316698B2 |
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JP6316697B2 |
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JP6316696B2 |
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JP2018051604A |
To provide a manufacturing method of a conductor wire, free from the need of pre-processing for removing an oxide film formed on a conductor wire and a surface of a coated conductor layer, and capable of being manufactured in an atmosphe...
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JP2018048405A |
To provide an electrode wire for electrical discharge machining capable of preventing fragments and fine particles of an electrode wire from occurring during electrical discharge machining and having an improved surface roughness and mac...
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JP6300871B2 |
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JP6301653B2 |
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