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JP4436071B2 |
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JP2010051990A |
To provide the product of a necked elbow in which thickness deviation is eliminated over the entire length, also the generation of wrinkles and local flattening in a bent portion are suppressed and excellent dimensional property and qual...
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JP4428225B2 |
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JP4429279B2 |
An inner-space-sectioned tube wherein, in manufacturing the tube having four or more independent fluid channels formed inside thereof, while at least two lengths of inner tubes are set to inscribe an outer tube, cold working is applied, ...
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JP2010046712A |
To provide a method of manufacturing a steel wire by which the steel wire having stable quality for reinforcing rubber articles is obtained.In the method of manufacturing the steel wire by wet wire drawing, a resin coating film layer is ...
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JP4423609B2 |
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JP4421168B2 |
To provide a method of working a soft copper material with a specified cross-section or smaller in which an increase in hardness caused by the adhesion and infiltration of a lubricating solution is suppressed. In the method of working a ...
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JP2010036237A |
To provide a method for producing a Cu-coated Al composite wire where, even in the case an Al-Mg alloy wire is used as a core material, a coated Cu and the Al-Mg alloy wire are more firmly adhered, so as to prevent the generation of a vo...
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JP4417358B2 |
Disclosed is a method for manufacturing a flux cored wire for welding stainless steel of 0.9-1.6 mm in diameter having a seamed portion, which the method includes the steps of: forming a hoop (stainless steel 304L or 316L) into a U-shape...
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JP2010029913A |
To provide a wire in which density of a cross section which is suitable to rectification and control when feeding a product wire is distributed.This wire is composed of a high-density outer peripheral part in which local relative density...
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JP4414802B2 |
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JP4406153B2 |
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JP4406154B2 |
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JP2010005672A |
To provide an advantageous method of manufacturing superfine copper wires by which the threading work of the superfine copper wire is easily performed and also time which is spent for the threading work is shortened without using exclusi...
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JP4396234B2 |
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JP4392868B2 |
In a multiple slip type wet-drawing process using plural drawing pass stages each comprised of a die (1) and a capstan (2) drawing a wire rod (3) passed through the die, an average slip rate in each drawing pass stage other than a final ...
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JP4380392B2 |
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JP2009279614A |
To provide a method of manufacturing wire rods which is composed of hard-to-work steel in the material.This method of manufacturing wire rods includes (1) a stage where rolling is applied to a billet and a base stock for wires which is h...
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JP4356417B2 |
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JP4358395B2 |
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JP2009248102A |
To provide a steel wire material which is excellent in adhesiveness to a covering rubber and also in wire drawability.A brass plating layer 12 which is formed on the peripheral surface of a wire body 11 of the steel wire material 10 is m...
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JP2009242837A |
To provide a copper alloy cast billet with which the productivity is further improved by reducing a tool wearing in tube making while holding the processing facility in the production of a copper alloy tube and the productivity; and the ...
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JP4345449B2 |
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JP4338794B2 |
This invention discloses a process for producing a high strength filament, said process comprising the steps of: (1) heating a steel wire to a temperature which is within the range of about 850 DEG C to about 1100 DEG C for a period of a...
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JP4340073B2 |
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JP2009220146A |
To provide a drawing die and a method of drawing a plated steel wire by which the amount of scraped plating is remarkably reduced, the shortage of the deposit of plating and the generation of surface flaws are decreased and a high streng...
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JP4334764B2 |
Through electro slag refining of a bloom of a stainless, precipitation hardenable stainless steel of 17-7 PH type, the fatigue resistance of springs made of cold drawn wires of said material is increased substantially. This depends on th...
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JP2009214172A |
To provide an aluminum extruded tube with which an aluminum drawn tube having excellent out-of-roundness is formable.The extruded tube for which an aluminum material composed of aluminum or an aluminum alloy is used and which is formed b...
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JP2009208139A |
To provide a method for machining an inner grooved tube, which can easily apply twist to a metal tube and can increase a lead angle of the inner groove.In the method for machining an inner grooved tube, a floating plug 2 and a grooved pl...
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JP4333819B2 |
In cold drawing an original pipe of a Cr-base alloy steel containing not less than 5% by mass of Cr, when an original pipe with an oxalate film formed as a substrate for a lubricating film formed by conversion treatment is used while a c...
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JP4333257B2 |
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JP2009195921A |
To provide a method for manufacturing a copper wire, capable of stably executing an operation of inserting a wire material such as a copper mother wire into a hole of a wire drawing die and stably manufacturing a copper wire with a very ...
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JP4323691B2 |
To provide a stranded steel wire excellent in workability and of high corrosion resistance. When subjecting a steel containing >=0.6 wt.%, C to continuous wire drawing, a wire drawing method is conducted at a temperature of <=5 deg.C by ...
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JP2009530499A |
A production system weldable and stainless tubular structures with high mechanical strength and related obtained product, particularly for making tubular elements in cold-drawn stainless steel, workable at different thicknesses and shape...
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JP2009183952A |
To provide a cold-drawing apparatus for a metal pipe which securely holds a drawing jig without scratching it with a gripper device and carries out drawing work without causing breakage even when it is repeatedly used.In the cold-drawing...
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JP4318235B2 |
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JP4315154B2 |
A steel tube hot-finished by the Mannesmann tube-making method is subjected to a simple grinding process for the inner surface, and thereafter to a cold drawing, so that the depth d of the concave portion in the concavo-convex profile fo...
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JP4311502B2 |
There is provided a production method of an internally ribbed steel tube, capable of forming spiral ribs stably so as to reduce troubles at the time of cold drawing for forming the spiral ribs of the steel tube. In this production method...
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JP4311503B1 |
There is provided a production method capable of forming spiral ribs stably by reducing troubles at the time of cold drawing for forming the spiral ribs on an internally ribbed steel tube. When the internally ribbed steel tube on which a...
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JP2009176664A |
To provide a superconductive wire processing device in which variations in common metal quantitative ratio occurring in a wire rod at the time of a drawing processing are contained and a high performance superconductive wire is obtained,...
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JP2009167450A |
To provide a copper alloy which has both of high strength and high electric conductivity comparatively by effectively precipitating an element solid-dissolved in a Cu mother phase.This copper alloy is composed of 0.01-3 mass% precipitati...
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JP4302481B2 |
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JP4301231B2 |
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JP4301095B2 |
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JP4299480B2 |
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JP4301640B2 |
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JP4297392B2 |
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JP2009146188A |
To provide a method for predicting deformation behavior of a recessed part, which can calculate deformation behavior of the recessed part close to a result of actual wire drawing.The prediction method predicts deformation behavior of the...
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JP2009138251A |
To improve the wire drawability of a steel wire without applying patenting treatment.The steel wire is a plated steel wire and characterized in that: the steel has a component composition consisting of, by mass, 0.35 to 0.90% C, 0.1 to 0...
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JP4284918B2 |
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