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JP3556061B2 |
To realize a tube manufacturing method by solid phase pressure welding capable of securing high productivity without necessitating bead cutting and moreover manufacturing a steel tube having an excellent seam quality and surface property...
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JP3553265B2 |
To give the degree of freedom on the cutting shape of a strip steel. This running cutting machine 10 is arranged on the fore side of a forming roll group and on the rear side of a strip steel pooling device, and it is composed so as to c...
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JP3550776B2 |
PURPOSE: To provide a welding method of a thin electric resistant welded tube having high strength at the welding part. CONSTITUTION: As a metallic sheet 1, an aluminum alloy material having ≤1mm thickness and 0.65-1.3wt.% silicon cont...
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JP3539612B2 |
To provide an equipment and method for smoothing a steel pipe seam portion which can effectively control a thickened seam portion of a steel pipe produced by the solid phase pressure welding method. With the equipment to smooth the seam ...
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JP3533844B2 |
To produce an electric resistance welded tube excellent in liq. pressure bulging formability required for the stock for automotive structural parts such as parts concerned to automobiles such as suspension arms, frame parts or the like a...
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JP3520608B2 |
PURPOSE: To produce a welded pipe which does not generate roll marks and has beautiful appearance by making the pipe while inclining the pipe clockwise or counterclockwise on the plane formed by the revolving shafts of cage rolls and a l...
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JP3518247B2 |
To provide a steel tube having a superior seam quality and surface and having an excellent grooving resistance, as well as the manufacture of such tube using an induction heating method capable of high productivity. A steel strip 1 is pr...
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JP3518256B2 |
To provide a manufacturing method by an induction heating system by which a steel tube having excellent seam quality and surface skin is manufactured at high productivity and the manufacture in accordance with small lot many kinds produc...
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JP2004098152A |
To provide a method for welding a metallic pipe, which can solve problems of a method for welding metallic pipes using a squeeze roll, and can set a so-called V-shape angle in the vicinity of a welding point large, and can accurately con...
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JP3495574B2 |
To make it possible to assure quality stabilization, further to decrease the variations of accuracy in respective kinds of work and to improve working efficiency. This device has a chamber 2 successively disposed via a freely openable an...
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JP3495212B2 |
To accurately measure seam part position by casting light with a specific wave length from a luminous body on the pipe surface of a rotating seam welded pipe, receiving the reflected light through a specific filter and properly judging t...
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JP3491339B2 |
PURPOSE: To easily produce a high quality and high tensile strength electric resistance welded tube at a low cost by executing heat treatment in a specific temp. condition after production an electric resistance welded tube by using a ho...
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JP2004017096A |
To provide a capacitor charging device for an electromagnetic welding machine which can charge a capacitor in a short time and, after the completion of charging, can keep the voltage of the capacitor constant.This capacitor charging devi...
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JP2004001054A |
To provide a butt-jointing method capable of uniformizing the size of metal mass around the butt ends of the jointing members and smoothing the surface in the jointing process.A pair of jointing members 2a, 2b are arranged in a butting s...
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JP3473589B2 |
To provide a technology capable of manufacturing an electric resistance welded tube having excellent welding quality, grooving corrosion resistance and workability of a tube joint with high productivity by the hot or warm finish. The ele...
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JP2003311433A |
To provide a method which can quantify the liquid metal embrittleness crack during seam welding of galvanized steel sheets, such as seam welding of a steel tube using the galvanized steel sheets by a simple method and can evaluate the li...
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JP2003260514A |
To provide an automatic straightening method capable of straightening a bend of an electric resistance welded tube in the line based on the measurement data by automatically measuring the bending direction and bending degree of the elect...
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JP2003260569A |
To provide a three-dimensional coil for an electromagnetic welding machine capable of welding a work having nonplanar shaped welding lines with the electromagnetic welding machine.The three-dimensional coil for an electromagnetic welding...
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JP2003251406A |
To provide a method and an equipment array for fabricating a welded tube by which edge waves before joining the edges of an open tube are stably prevented without interfering with another device to be inserted into a tube.In the method f...
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JP2003251405A |
To provide a method and an equipment array for fabricating a welded tube by which edge waves before joining the edges of an open tube are stably prevented without interfering with another device to be inserted in a tube.Both edge parts 2...
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JP2003191035A |
To efficiently fit a lid to an opening of a container body.In a metal container manufacturing method in which the metal lid 3 having a surface shape slightly smaller than the opening is fitted to the container body 1 having the opening 2...
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JP3423034B2 |
PURPOSE: To provide the pressure welding quantity detector in the high-frequency resistance welding process capable of detecting accurately and rapidly the pressure welding quantity during welding. CONSTITUTION: An image sensor 2 picks u...
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JP2003517379A |
A method for repairing/manufacturing an integrally bladed rotor for a turbine or turbo engine, in which, in the case of a repair, at least one vane section to be replaced is removed leaving a stub section to which a replacement vane sect...
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JP3405676B2 |
To provide a web support device capable of preventing the occurrence of web buckling, pressed flaw, etc. This web support device, which supports a web in a process to produce a welded wide flange shape steel and welds a flange material 1...
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JP2003133028A |
To provide a discharge gap switch preventing generation of large impulse sound in operation and reducing the maintenance and checking by using no trigger electrode.This discharge gap switch is composed of an electrode chamber 1 in which ...
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JP2003130568A |
To improve heat transfer efficiency and to manufacture a tube with a spiral fin shaped preferable to flow resistance.The tube 2 is rotated and simultaneously moved in the axial direction. A band plate having a twisted edge part is moved ...
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JP2003123960A |
To provide a coil of an electromagnetic welder capable of satisfying a welding condition while securing required strength.This coil of the electromagnetic welder is used for a electromagnetic welder for welding by making a large current ...
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JP3398892B2 |
To provide a device and a method for conductively connecting at least two electric conductors by inductive heating. An induction coil generates a magnetic field when a current is fed to it. A magnetic field concentrating unit is arranged...
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JP3394656B2 |
To stabilize cutting quality and to reduce a loss length of an end part of a tube by dividing a copying roller to left/right, arranging them right close to a cutter and setting a position of a copying roller and a position of a cutter wi...
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JP2003512709A |
An induction heating apparatus and method for heating a substantially continuous first bondline defined by a length of thermally responsive bonding material positioned between a first member and a second member. The first member or secon...
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JP3386404B2 |
To drastically increase the joining strength between a preceding material and a succeeding material. At the time of joining the preceding material to succeeding material on the inlet side of a finishing mill 2 of a continuous hot rolling...
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JP3375486B2 |
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JP2003019572A |
To provide a method and equipment for permanently joining a first and second metallic components of comparatively large size, using a magnetic pulse welding method.At first, the end of the first and second metallic components are arrange...
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JP3369475B2 |
A roller mounting arrangement for a machine in which elongated material is shaped by rollers as the material progresses along a pathway. The rollers (9) are mounted so that they are free to pivot and distribute forming pressure over a wi...
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JP3369483B2 |
A tube forming machine for making a tube from a sheet is disclosed. The forming rolls of this invention include various V-shaped rolls at least some of which are used as part of a three-point bending technique. The three-point bending te...
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JP2003013112A |
To provide an apparatus for manufacturing complex metallic member, which can efficiently manufacture a complex metallic member of universal width, without generating a sag at the either edge part of the depositing metal.The apparatus 1 f...
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JP2003501273A |
(57) [Summary] The present invention relates to a method of joining metal parts at a high temperature without the risk of melting the parts. It uses powders that have a melting temperature above the melting temperature of the material of...
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JP2003001324A |
To provide a device and a method for manufacturing an electric resistance welded pipe which has high welding strength and has no depression at welded spots.A concave curve 28 which has a longitudinal section of an arc with R in radius is...
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JP2003001325A |
To prevent adhesion of weld slag, clinging to a squeeze roll, to an electric resistance welded pipe.A cleaning member 37 of a wiper 33 is pressed on a concave curve 28 and an upper flange 30 of a squeeze roll 8, and weld slag s is cleane...
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JP2003001323A |
To prevent displacement of a squeeze roll.A rotating shaft 34 of a squeeze roll 8 is supported rotatably by shaft bearings 36a, 36b in a through-hole 35 of bearing boxes 23a, 23b. The rotating shaft 34 is supported by taper rollers 37 in...
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JP2002346764A |
To maintain the cooling efficiency of an impeder core, and to improve the rigidity and the mechanical strength of an impeder reducing the occupied cross sectional area. An electroseamed tube P is manufactured by rounding a traveling plat...
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JP2002346763A |
To efficiently remove spatter generated during welding. An electroseamed steel tube P is manufactured by rounding a traveling plate bar T in a tubular shape, and pressing and welding both ends thereof by a squeeze roll 8 while heating th...
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JP2002336971A |
To provide a method for producing a high workability electric welded steel tube which has no local variation in workability, has excellent secondary workability, and is applicable for an electric welded steel tube using an extra low carb...
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JP3348822B2 |
To enable industrially executing a tube-making method by solid-phase pressure welding by which bead-cutting is unnecessitated, high productivity is secured and steel tubes excellent in the quality of seam and surface skin is manufactured...
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JP3348989B2 |
PURPOSE: To control oxide flaws represented by a penetrator without deteriorating productivity. CONSTITUTION: In a gas shield welding equipment which is provided with an inner cylinder 8 having an inner diameter larger than the outer dia...
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JP3343559B2 |
PURPOSE: To provide an automatic temperature controller which can control to reach a stable state speedily right after its start as to automatic temperature control using the PID controller. CONSTITUTION: An integrating converter 7 where...
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JP3343051B2 |
To provide such a manufacturing method for welded wide-flange shape steel and its device as are capable of eliminating left and right uneven heating in the end part of a web material and therefore are capable of stably securing superior ...
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JP3340696B2 |
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JP2002321070A |
To prevent spatters from scattering on a welding part and remove spatters stuck on an electric resistance welded tube.On the front side of a squeeze roll 8 where a plate strip material T is rounded into a tubular form and welded by heati...
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JP2002316271A |
To provide a magnetic flux generator for a method for an electromagnetic welding which is a new seam welding method.In the equipment with which a high density magnetic flux is rapidly applied on stacked sheet metals using a coil for gene...
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