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JP6313234B2 |
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JP6313105B2 |
Provided are a metal wire rod drawing die that has a longer life than conventional dies and that can prevent damage to a metal wire rod surface and a method for manufacturing the die. In a metal wire rod drawing die (1), a die hole (2) f...
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JP6308918B2 |
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JP6300871B2 |
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JP6148692B2 |
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JP6078813B1 |
[Subject] The means which further increases the amount of torsion of the screw bar manufactured by drawing is provided. [Means for Solution] A screw bar is manufactured by drawing out making a peripheral direction rotate dice 901 at the ...
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JP6062798B2 |
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JP6031654B2 |
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JP5968264B2 |
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JP5882827B2 |
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JP2015217400A |
To provide a method for efficient production of a different-and small-diameter copper tube having diameters and plate thicknesses different in an axial direction, and to provide the different-and small-diameter copper tube.There is provi...
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JP2015202502A |
To provide a wire drawing jig for a metal conductor wire which can suppress foreign matter deposition on an introduction part of a wire drawing die, and a manufacturing method for a metal conductor.The wire drawing jig has a wire drawing...
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JP5800310B2 |
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JP5796516B2 |
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JP5781399B2 |
A device for drawing a metal tube capable of sufficiently applying a lubricating oil to an inner surface of a tube at the time of drawing and preventing occurrence of seizures is provided. The device for drawing a metal tube in which dra...
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JP5739634B2 |
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JP2015093306A |
To provide a wire drawing method of a wire in which the proportion of lubrication particles participating in lubrication is improved when the drawing of a wire is performed while supplying lubrication liquid which contains fine lubricati...
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JP5694152B2 |
Provided is a method for producing a metal wire with improved productivity in which a conventional drawing machine is used while wear of a die or occurrence of a break due to the ductility loss thereof is effectively prevented. Provided ...
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JP5688848B2 |
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JP5673493B2 |
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JP2014161910A |
To provide a diamond die capable of high-quality wire drawing processing, by effectively preventing an increase and disconnection of a resistance in wire drawing processing.In the diamond die, a hole for executing the wire drawing proces...
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JP5534917B2 |
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JP5527887B2 |
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JP5523332B2 |
Provided is a carbon steel wire with unprecedentedly high strength and excellent ductility and fatigue resistance, a process for producing the same, and a method of evaluating the same is provided. Provided is a carbon steel wire having ...
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JP5482975B1 |
An inner surface regulation tool includes a mandrel, a plug which is detachably connected to the mandrel, and a connection member which connects the plug and the mandrel by a magnetic force. One of the plug and the mandrel includes a col...
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JP5448911B2 |
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JP5448909B2 |
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JP5430159B2 |
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JP5426701B2 |
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JP2014018814A |
To provide a dice for cold drawing of a pipe, which enables the drawing to be performed without causing cracks.In a dice 1 for cold drawing, a bearing diameter and a tip diameter of the dice satisfy the following expression (1), and an e...
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JP5333401B2 |
To provide a method for manufacturing a metallic double wall pipe, in which surface pressure can be generated on the interface between an internal pipe and an external pipe of the metallic double wall pipe obtained. There is provided a m...
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JP3186881U |
To form a thick, uniform and strong lubricating film formed on a wire rod having a predetermined diameter by using a bonde substitute lubricating oil. A wire drawing machine 6 includes a die box 7 and a coating box 8 which is connected i...
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JP5327610B2 |
The object of the invention is to provide a special-shaped wire section forming device, which can solve the problem of the bending generated on the wire section before and after forming, the device has high dimension accuracy and good fo...
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JP5312184B2 |
To provide a suspension wire which has tensile strength equal to a suspension wire for which beryllium copper is used and in which there is no dangerousness such as carcinogenicity due to the beryllium. Drawing work is applied at the red...
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JP5296955B2 |
To provide a fine stainless-steel wire for spring which is a stainless- steel wire for spring forming, particularly a fine wire e.g. of <=0.8 mm obtained by wet wiredrawing, and can be obtained by applying oil lubricant capable of contri...
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JP5289753B2 |
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JP5280971B2 |
In an apparatus for drawing a metal tube in which lubrication oil is ejected from an ejecting opening formed in a hollow rod supporting a plug to apply the lubrication oil onto an inner surface of a raw tube, the lubrication oil ejection...
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JP5224423B2 |
Provided is an internally grooved pipe having excellent hairpin curve performance for a heat-conducting pipe when a hairpin bending process is performed to incorporate the pipe as a heat-conducting pipe in a heat exchanger. As an element...
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JP5210124B2 |
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JP2013521132A |
A method of manufacturing a duplex stainless steel wire product starting from wire rod, includes the steps of: roughening the wire rod surface; applying a carrier coating on the wire rod surface; peeling the wire rod using a shaving die ...
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JP5195633B2 |
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JP5191838B2 |
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JP5180759B2 |
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JP5154851B2 |
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JP5154861B2 |
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JP5149836B2 |
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JP5140606B2 |
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JP5136990B2 |
Proposed is a method of producing an ultrathin-wall metal tube by a cold drawing method capable of drastically expanding an available size range toward much thinner side with respect to wall thickness of metal tubes. This is a diameter-e...
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JP5128515B2 |
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JP2013010129A |
To provide a method of drawing a steel product and a die device for drawing a steel product adapted to allow inhibiting variation in outer diameters of steel products from the initial stage of startup of the drawing process to achieve st...
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