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JP3298688B2 |
PURPOSE: To provide the method for producing a high strength deformed steel wire applicable to the production of a flexible pipe for high pressure fluid transportation or the like. CONSTITUTION: Steel contg., by weight, 0.90 to 1.25% C, ...
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JP2002180160A |
To improve the straightness of straight wire.A starting wire rod SS which is introduced into a drawing die 10 causes stretching due to drawing into a wire of desired diameter and is then fed in succession to a high-frequency heating coil...
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JP3294154B2 |
To prevent the lubricant from splashing, and to effectively reuse the lubricant by providing the recovering device for the lubricant, having a spiral brush in a lubricant attaching device, removing the lubricant sprayed excessively on a ...
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JP2002517316A |
The invention relates to a method for producing metal shapes with a partially or totally polygonal cross-section by means of continuous casting in a double-flanged wheel and continuous rolling using a series of at least 3 pairs of roller...
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JP3291638B2 |
PURPOSE: To provide a manufacturing method of the high strength extra fine steel wire which is excellent in the twisting characteristic and whose tensile strength is above the prescribed value. CONSTITUTION: In a manufacturing method of ...
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JP3290262B2 |
PURPOSE: To provide a wire drawing method being suitable even for an allay of Au-Sn, Au-Si, etc., which is brittle and whose tensile strength is rapidly reduced when it is heated. CONSTITUTION: A die 1 and a blank wire Lp are heated with...
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JP3286384B2 |
PURPOSE: To make the winding diameter of power spring small by excellent durability and corrosion resistance and uniform thin plating thickness. CONSTITUTION: The surface of a carbon steel wire 1 is electric nickel plated 2 as shown by (...
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JP2002143920A |
To provide a manufacturing method of an inner face grooved tube by which the inner face grooved tube having a high heat transfer performance is manufactured while reducing wear of a grooved plug and not incurring lowering of productivity...
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JP3283332B2 |
PURPOSE: To produce a high strength extra fine steel wire free from discontinuity during working and excellent in stranding property by subjecting a steel wire rod, having a specific composition consisting of C, Si, Mn, Cr, Al, and Fe, t...
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JP3279477B2 |
To obtain a manufacturing method and device of a tube having multiple groove on the inside surface for freely changing the shape of groove without increasing drawing force while impressing rolling pressure. By moving a metallic tube in t...
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JP2002122144A |
To provide a manufacturing method of a direct-acting bearing member which is manufactured by the drawing using a dissimilar die and the induction hardening.In this manufacturing method of the direct-acting bearing member, steel having th...
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JP2002120012A |
To provide a method for drawing a weldable material represented by titanium and titanium alloy wires with excellent accuracy and at a low cost without performing surface treatment on the drawn material, and a device which is suitable for...
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JP3277878B2 |
To produce a wire drawing type high strength steel wire rod free from the generation of vertical cracking in a twisting test and having ≤0.4 mm diameter and ≥4150 NPa TS and to provide a method for producing it. This wire drawing typ...
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JP3274504B2 |
PURPOSE: To provide the method and apparatus for drawing steel wire to produce high tensile strength steel wire with increased torsional ductility. CONSTITUTION: The wire is drawn through a plurality of standard dies 14 in a wire drawing...
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JP3273953B2 |
PURPOSE:To provide a high-critical current characteristic by setting the average diameter of a Nb or Nb alloy filament constituting a superconducting module and/or the average cross section area of the superconducting module to the optim...
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JP2002102916A |
To provide a method for manufacturing an inside grooved tube capable of improving productivity of the inside grooved tube with high thermal performance, without causing a damage on the grooved plug and capable of making the best possible...
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JP3273686B2 |
PURPOSE: To provide a method for producing a rubber-reinforced steel cord having a high tensile strength and excellent fatigue resistance at a low cost without requiring complicated processes. CONSTITUTION: This method for producing a ru...
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JP2002097548A |
To prevent a cracking of a metal material, which occurs in a few hours or a few days after drawing.This method comprises making residual stress in a periphery direction, of 50% or less than yield stress, exist at 1/40 depth of a diameter...
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JP3269539B2 |
PURPOSE: To effectively temper a martensite structure in a surface layer and prevent scratches of a wire rod by applying induction heating to the wire rod on in-line immediately after removing the skin of the hot rolled wire rod with a d...
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JP3269244B2 |
PURPOSE: To facilitate the working of a small diameter tube and the examination of a device by directly sustaining the thrust load to be generated in working the groove by a rotary head through a working roll. CONSTITUTION: A plurality o...
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JP3267185B2 |
To reduce defects by burning flaw and to enable cold-drawing even it is a steel tube having several tens μm thick scale. After generating cracks 3 on the scale 2a of a steel tube 2 with the scale 2a stuck, cold-drawing is executed by oi...
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JP3264790B2 |
PURPOSE: To produce drawn parts having an irregular cross section in which the limitation of the increase of the content of carbon and the generation of deformation are solved and many drawing and annealing stages can be eliminated and t...
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JP3265123B2 |
PURPOSE: To obtain a hot rolled wire rod excellent in mechanical descaling property and rod drawability by specifying the content of carbon, the condition of surface ruggedness, the position and area of regions of the same crystal orient...
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JP2002066624A |
To provide a manufacturing method for a thick-walled small-diameter pipe having excellent quality, completely eliminating a layer of a mill scale in hot rolling and also eliminating microcracks that occur when a material is pipe-rolled.I...
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JP3257218B2 |
PURPOSE: To prevent the development of cup-like crack at the time of executing cold-drawing work caused by the concn. segregation of C in the center part of a cast billet at the time of producing a steel for spring by using a continuous ...
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JP3257723B2 |
PURPOSE: To improve a manufacture yield by preparing the coil of a metallic pipe with a wiry member inserted through and a core member in which an optical fiber unit is housed in the groove of a spacer with a groove, connecting the core ...
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JP3253318B2 |
PURPOSE: To manufacture an oxide type superconductive multi-core wire, which excels in the processing easiness and has high critical current density and with which wire severance is prevented likely in the wire drawing process. CONSTITUT...
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JP2002028714A |
To shorten inspection time, also to contrive the effective use of space in a works and to perform exact inspection by enabling in-line detection of the internal defect of a wire.A straightening machine 20 for straightening the wire 12 pu...
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JP2002018511A |
To provide a drawing device for efficiently manufacturing a bar-shaped or coil-shaped product on the outer peripheral surface of which a herical groove is formed by supplying the bar-shaped or coil-shaped columnar base stock and drawing ...
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JP2002011520A |
To provide a new manufacturing method, with which excellent initial adhesiveness can be imparted to a steel wire under high productivity and a low cost.When the steel wire having brass plating is subjected to wet type wire drawing by a m...
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JP2002011517A |
To provide an apparatus capable of increasing a holding action of a wire and facilitating a relaxing work for wire holding.The apparatus consists of a chuck main body 10 fixed to a coiling drum D via a pulling chain 11, a wedge part 9 fr...
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JP2002011518A |
To provide a drawing method capable of decreasing the residual stress generated in a wire and a bar.By using a two stage taper die in which a taper angle satisfies the following formulas, a final pass of drawing is conducted at a second ...
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JP2002011519A |
To provide a new manufacturing method, with which excellent initial adhesiveness can be imparted to a steel wire under high productivity and a low cost.When a brass-plated steel wire is subjected to drawing, a wet type lubricant which co...
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JP3247236B2 |
PURPOSE: To provide excellent workability with stable arc and small amount of generation of spatter by continuously forming a band steel into a tubular body, making an slit to feed the base flux to be filled along the advancing direction...
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JP2002001419A |
To apply a process method which enables a high-speed wire drawing for the plated steel wire to be executed without difficulty.The high-speed wire drawing characterized by the features that a patenting treatment is performed on a steel wi...
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JP2002001418A |
To provide a roller member for information equipment which can shorten circularity and a clearance of external diameter dimension, a drawing die for manufacturing a roller member for the information equipment, and a method for manufactur...
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JP2002001417A |
To provide a tube forming apparatus capable of forming a coil of long sized tubes and to provide a grooved drum for tubular coil forming capable of easily picking up the tubular coil after forming.In a continuously tube forming apparatus...
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JP2002001416A |
To provide a cold drawing method which can lower costs by reducing the number of times of the heat treatment, and prevent internal defects in the materials to be processed from being developed.In the cold drawing method having at least t...
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JP3244426B2 |
To manufacture a wire which does not give trouble such as metallic stain on a cutout wafer as a wire for a wire saw for cutting out a wafer from, for example, a semiconductor ingot and has excellent quality such as tensile strength. A ba...
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JP2001353516A |
To provide a drawing working method capable of reducing a residual stress generated to a wire and a bar.When σ0.1 is defined as a true stress at a strain of 0.1 at a tensile test and E is defined as a Young's modulus, the final pass of ...
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JP2001353519A |
To solve a problem that a conventional tube is a single structured, thus, inner/outer face parts can not be made of a different material and a small diameter tube having a fine diameter axial hole is not easily manufactured.An outside tu...
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JP2001347310A |
To reduce the manufacturing cost by eliminating a joint of double pipes.In this double pipe type heat exchanger comprising a spiral double heat transfer pipe of the double structure comprising an outer pipe 50 and an inner pipe 48, the i...
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JP3239833B2 |
To obtain the manufacturing method for a special shaped tube by which the surface area is increased and, for example, even in the case where the tubes are used for the internal tubes for double-pipe type heat exchangers, sufficient clear...
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JP3227072B2 |
PURPOSE: To produce a conductive aluminum alloy wire of high quality excellent in strength and heat, resistance at a high yield. CONSTITUTION: As for the rough drawing wire of an alloy having a compsn. contg., by weight, 0.1 to 0.5% Zr a...
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JP2001312140A |
To provide a roll for electronic apparatus which is easy in manufacture, is low is cost, is light in weight and thin, is high in strength in spite of a small diameter, is excellent in thickness unevenness, out of roundness, straightness ...
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JP3226723B2 |
PURPOSE: To produce a wire rod excellent in mechanical descaling properties by prescribing the porosity of wire rod scales and the average pore size. CONSTITUTION: The porosity of wire rod scales is regulated to ≥15% by volume, and the...
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JP2001295011A |
To provide a new bending resistant copper alloy wire excellent in bending resistance and to provide a cable using the same. An alloy wire rod of a Cu-Ag alloy, a Cu-Nb alloy, a Cu-Fe alloy or a Cu-Cr alloy is wire-drawn to a final wire d...
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JP2001293517A |
To provide a long size wire manufacturing apparatus capable of elongating and efficiently manufacturing a long size wire even if it is brittle regardless of a space for installing the apparatus. The long size wire manufacturing apparatus...
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JP3217692B2 |
To contrive the promotion of versatility by expanding applicability and to elevate the reliability to prevention of wire breaking accident by enabling coping with various drawn wires with a device having simple structure regardless of th...
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JP3210397B2 |
PURPOSE: To obtain a steel wire for reinforcing glass excellent in corrosion resistance by subjecting the wire rod of a slab having a specified compsn. in which Cu and Ni are added and the amt. of S is prescribed to wire drawing, thereaf...
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