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JP3373670B2 |
PURPOSE: To prevent breakage by suppressing vibration in drawing wire rod so as to increase drawing speed as well as to improve productivity, further, to improve ductility of wire rod and reduce variance in ductility in the longitudinal ...
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JP3373449B2 |
To provide a technique which can restrain a runout of a wire pipe material advantegeously by controlling the wire pipe material loop position with a high response or a high response velocity and stably when the wire pipe material accommo...
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JP3374364B2 |
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JP2003025010A |
To provide a chuck device capable of suppressing generation of chips attended with a non slip projecting part bites in an outer circumferential surface of a work.The chuck device 1 has a chuck body 10 having a work insertion hole 11. The...
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JP3370869B2 |
To decrease the coefficient of friction in drawing a copper or copper alloy pipe and prevent the occurrence of defective lubrication and defective degreasing even when an external oil for drawing is exchanged in whole by using an externa...
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JP2003019511A |
To provide a drawing method of a metallic tube, especially a stainless steel tube of not less than a certain number N, by which the tube can be drawn by manufacturing and using a die whose life up to the generation of seizure is predicte...
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JP3365651B2 |
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JP3363361B2 |
To prevent the occurrence of seizure, surface flaws, disconnection or the like in a wire rod by subjecting the wire rod to heat treatment at a specified temp. or above, thereafter removing the surface layer by a specified thickness or ab...
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JP3362315B2 |
PURPOSE:To improve workability and to produce an extra fine wire having high strength and excellent in settling resistance by regulating the contents of Al, S, and O in a steel composition so that they satisfy specific relations, perform...
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JP3358680B2 |
PURPOSE: To improve productivity and to produce a joined wire which is equal in the phase transformation temp. and joint strength in a joint part to an Ni-Ti alloy of a base metal by joining Ti-Ni allays of hardly workable materials by p...
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JP3360228B2 |
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JP2002361318A |
To provide a method for manufacturing a steel wire capable of manufacturing an excellent steel wire with good yield and good surface properties. A surface flaw of the steel wire is detected by a flaw detector provided in front of an inte...
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JP3357150B2 |
In known removal apparatuses for elongate material, the roller chains on which the clamping jaws are fastened must be manually retensioned. If this retensioning does not take place soon enough, increased wear of the roller chains and of ...
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JP3353946B2 |
PURPOSE: To insure hardness of the raceway surface of a rail and improve cold working adaptability by forming steel containing C, Si, Mn;,Cr, B in the respective prescribed ranges by cold drawing, and forming the rail of a bearing by ind...
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JP3348614B2 |
To effectively store a reduced stock into a basket without any gaps. In this device, a linear stock 2 is reduced through a die 4 and coiled around a freely rotatable drum 7, and the reduced stock 5 coiled is stored into the basket 8 rota...
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JP3348188B2 |
PURPOSE: To produce a high strength PC steel bar excellent in delayed fracture properties and good in spot weldability and to provide a method for producing the same. CONSTITUTION: A high strength PC steel bar having a compsn. contg. 0.1...
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JP2002331245A |
To provide a porous body capable of being precisely controlled in its pore size, reduced in pressure loss and heat treatment is not necessarily indispensable.The porous body has a large number of pores 17 and contains a metal. A large nu...
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JP3345196B2 |
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JP3345225B2 |
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JP3345851B2 |
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JP3340233B2 |
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JP3340232B2 |
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JP2002292420A |
To provide a reduction method for contracting a pipe diameter without increasing the wall thickness of the pipe and with a low cost and excellent productiv ity, a manufacturing method for a seamless heat transfer pipe with an inner face ...
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JP2002292421A |
To provide a machining device for metal pipe inner and outer faces capable of forming fine shapes of a fin on the inner face of the metal pipe at a high speed.In the machining device 20 for the metal pipe inner and outer faces provided w...
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JP2002292419A |
To provide a contracting method for a pipe diameter and contracting device therefor suppressing the increase in the wall thickness of the pipe, and contracting the pipe diameter with a large contraction rate and a low cost.In a manufactu...
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JP2002282929A |
To provide a method a device for wire drawing which can manufacture a wire without curling and breaking, maintaining a stable winding without fluctuating winding tension while winding on a bobbin by optimizing the tension of winding on t...
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JP3330350B2 |
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JP3329681B2 |
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JP3328524B2 |
To provide a method for manufacturing an open tube good in quality at a low cost, in a short time and without twisting or the like. In a method for manufacturing the open tube for weld examination by forming a steel strip into a columnar...
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JP3326499B2 |
The invention relates to a method and device for the deformation by hydrodynamic drawing of multi-layer composite wire (8) by means of lubricant-supplied multiple drawing machines. According to said method, before the multiple drawing ma...
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JP3324596B2 |
To manufacture a wire for wire saws which maintains the good wire performance even after cutting. In the manufacturing method of the wire for wire saws which is used for cutting and slicing hard materials such as silicon and a solar cell...
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JP2002256391A |
To provide a steel wire for a wire saw, which has high strength satisfying a tensile strength of ≥3,800 MPa and high wear resistance satisfying a silicon crystal cut area of ≥90 m3, and a production method therefor.The steel wire for...
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JP3319978B2 |
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JP3318016B2 |
PURPOSE: To provide the drawing method for an electrode wire used for a wire-electrical discharge machining which a linearity is given by a wire drawing. CONSTITUTION: The guides 12 and 13 are provided, guiding a wire 10 to the holes of ...
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JP2002237409A |
To provide a long permanent magnet wire which is low in material cost and manufacturing cost.In the axial section of a nonmagnetic conductive exterior material (exterior material) 2 of the permanent magnet wire 1, permanent magnet region...
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JP2002526656A |
The present invention relates to a method for manufacturing a suspension bar for a permanent cathode used in the electrolysis of metals, wherein the suspension bar is formed of a rigid metal outer jacket and a highly conductive core atta...
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JP2002224734A |
To provide a wiredrawing method with a floating die which can improve straightness and surface cleanliness of wire.Wiredrawing work is done by a wiredrawing die which can change freely its angle in relation to a die holder. A curved surf...
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JP2002224733A |
To provide a manufacturing apparatus for an inner grooved metal tube which can adjust quickly and easily to a dimensional change in diameter or wall thickness of a metal tube to be grooved inside as well as improve working speed compared...
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JP3313870B2 |
PURPOSE: To make it possible to use a large amount of material per piece of starting tubes and to obtain many tube products without the degradation in their quality. CONSTITUTION: The starting tube 1 is first positioned and fixed by a ti...
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JP2002220648A |
To provide a method for manufacturing a coiled spring made from an aluminum alloy of light weight and high strength, in a good yield.The method for manufacturing the coiled spring made from the aluminum alloy comprises, a wire rod formin...
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JP2002524112A |
Medical devices are provided which utilize a highly flexible cable of two and preferably three or more strands of wire, at least one of which is a nickel-titanium alloy strand. The strands are twined to form a wire rope which is drawn th...
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JP2002524113A |
Medical devices are provided which utilize a highly flexible cable of two and preferably three or more strands of wire. The strands are twined to form a wire rope which is drawn through successive dies to reduce its diameter until the ou...
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JP3308839B2 |
To provide a method for manufacturing a bearing steel wire by reducing the compressive deformation resistance of the bearing steel wire to improve the cold forgiability in manufacturing a bearing lace and a ball roller where the high def...
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JP2002208323A |
To manufacture a high quality very thin wire or coated very thin wire that is suitable for the wiring of electric or electronic equipment.A process of coating metal A or resin A on a conductive metal element wire in layer-form of 1-100% ...
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JP3306794B2 |
PURPOSE: To provide a frame member which is inexpensive, excellent in corrosion resistance or the like, lightweight and highly strong and the manufacturing method thereof. CONSTITUTION: In the manufacturing method of the frame member 4, ...
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JP2002205111A |
To provide a method and an apparatus for drawing wires without causing any of tight winding, loose winding and uneven winding by keeping proper winding tension at any position in winding stages onto a bobbin in the drawing of a thin meta...
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JP3304757B2 |
To provide a manufacturing method of a tube having multiple grooves on the inside surface by which the break of a metallic tube is prevented, adjustment is simple and the shape of the groove is freely changed and a device therefor. By ar...
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JP3302244B2 |
To manufacture a tube having a grooved inside surface as stabilizing quality by making each member light in weight, also improving durability and enabling high-speed rotation of a planetary ball die. A grooving plug 12 is arranged at the...
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JP3302213B2 |
PURPOSE: To prevent the generation of delamination in a steel wire by regulating the ratio of the C concn. in ferrite in the surface layer part of the steel wire to that in the center part and regulating the ratio of the concn. of Si, Mn...
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JP2002195788A |
To provide a copper or copper alloy heat exchanger tube, in which the evaporation performance of CFC-based refrigerant is enhanced, inner surface coating will not dissolve in CFC-based refrigerant nor causes any chemical reaction, stripp...
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