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JP5079929B2 |
An operation management device performs an operation management for electric resistance welding in which a strip-shaped metal plate is formed to have a cylindrical shape in such a manner that both end portions of the metal plate graduall...
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JP5055843B2 |
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JP5055848B2 |
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JP2012200774A |
To efficiently manufacture welded shape steel having no deterioration or the like of a welding part appearance caused by plating when manufacturing the welded shape steel by high frequency resistant welding by regarding a plated steel ba...
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JP2012200775A |
To efficiently manufacture welded shape steel having no deterioration or the like of a welding part appearance caused by plating when manufacturing the welded shape steel by high frequency resistant welding by regarding a plated steel ba...
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JP2012524661A |
The present invention relates to low carbon welded tubes and process of manufacture thereof. Manufacture of welded tubes utilising draw bench processes is energy intensive process due to the need of multiple pass (to enhance mechanical p...
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JP2012170973A |
To connect a conductor by setting on a device in a state that an insulating coating is not peeled off.The conductor connecting device forms a connecting part in which conductors are connected by heating the plurality of conductors coated...
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JP2012166234A |
To provide a method for manufacturing a welded steel pipe excellent in the quality of a welded part and capable of improving production efficiency.In the method for manufacturing the welded steel pipe, a linear seam pipe stock 2 is forme...
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JP5014837B2 |
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JP5000472B2 |
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JP4998739B2 |
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JP4995003B2 |
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JP4992304B2 |
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JP4983201B2 |
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JP4946812B2 |
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JP4943544B2 |
In the electric-resistance-welded pipe welding apparatus, after a metal strip that is traveling is bent into a cylindrical shape by rolls so that both ends in a width direction of the metal strip face each other, a power supply portion o...
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JP4935703B2 |
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JP4910650B2 |
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JP4907004B2 |
A method and apparatus for welding a shaft having an open seam defined between opposed longitudinal edges, comprising passing the shaft along its longitudinal axis through an array of pressure rollers which contact the surface of the sha...
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JP4890609B2 |
The present invention provides a method of production of electric resistance welded steel pipe able to stably reduce weld defects due to oxides by firing plasma and furthermore able to reduce plasma jet noise and comprises shaping steel ...
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JP4860864B2 |
A method and an apparatus produce a connection of at least at one end surface of a carrier matrix of a honeycomb body, in particular a catalyst carrier body, by a joining technique. The matrix is disposed in a tubular jacket and is lamin...
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JP4834222B2 |
The invention relates to a blade and a rotor for a gas turbine and to a method of joining blade parts of a gas turbine, a blade-body section (1) and at least one further blade part (4, 16, 21) being provided, and the blade-body section (...
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JP2011240402A |
To provide an electromagnetic welding method of an aluminum-based plate material and a butt metal plate material although a conventional electromagnetic welding method can not achieve butt welding of a metal plate, and to manufacture a b...
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JP4826751B2 |
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JP4816015B2 |
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JP4764991B2 |
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JP4741717B2 |
An electric-resistance-welded pipe welding apparatus includes: an impeder that is disposed in the inner portion of a metal strip which is bent into the cylindrical shape, and is disposed spanning over from the upstream to the downstream ...
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JP4723163B2 |
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JP4718343B2 |
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JP4705692B2 |
A system and method for monitoring the molten state for enabling a molten state, butting state, or other state of electric-resistance-welded pipe on-line more accurately than in the past are provided. That is, a mirror 23 provided at a f...
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JP2011517334A |
A fan assembly for directing fluid flow in a hybrid radial and axial direction includes a backplate having an inner diameter portion and a substantially frusto-conical outer diameter portion positioned about a center axis (CL), a plurali...
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JP2011517334T |
The step which the method of producing a fan (20) equips with a plurality of braids (24) which extend from a back plate (22) and a back plate (22) and which produces a subassembly (48), The step which produces a fan shroud (26), and the ...
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JP2011092975A |
To provide a method for producing a welded shape steel and a production device therefor in which, when a web material such as a T-shaped steel and an H-shaped steel and flange materials are welded by high frequency resistance welding, th...
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JP4682779B2 |
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JP4682780B2 |
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JP4679802B2 |
A magnetic pulse welding operation is performed to secure first and second metallic components together, such as a yoke (30) and a driveshaft tube (21) in a vehicular driveshaft assembly. The yoke includes a first portion, such as a body...
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JP4661370B2 |
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JP4644559B2 |
An electromagnetic welding method includes the steps of piling a metal plate and an electric wire on a coil which generates a magnetic field when a current is applied into the coil, with a core wire portion of a central part of the elect...
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JP4632428B2 |
To provide a method for making a steel tube by high-frequency induction heating, in which, when welding butting ends of a roll-formed steel strip by high-frequency induction heating, the cooling efficiency of an impedance core is enhance...
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JP2011025311A |
To stably manufacture an electric resistance welded steel tube for a high-strength thick-walled line pipe having the excellent sour resistant characteristic of an electric resistance welded part by optimizing the shape and the state of d...
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JP2011020159A |
To provide a scraper device which can actually effectively remove deposits such as sputters and slags deposited on top rolls in squeeze rolls.The scraper device for a squeeze roll functions to remove deposits 10 adhering to a portion in ...
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JP2011011246A |
To suppress the occurrence of welding defects in welded H-section steel in manufacturing welded H-section steel formed by joining a web and flanges by welding through a high-frequency resistance welding method.The welded H-section steel ...
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JP4613777B2 |
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JP2011000636A |
To solve a problem that the conventional cutting of an inner surface bead of an electric welded tube causes changes in the cutting resistance due to the intermittent bead (insufficient welding capacity) or excessive bead (excessive weldi...
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JP4586515B2 |
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JP2010240690A |
To efficiently suppress the occurrence of stress corrosion cracking by imparting stirring force to a predetermined aiming position range at the predetermined frequency to form micro solidified structure in which the solidifying direction...
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JP4552244B2 |
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JP4539067B2 |
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JP4535739B2 |
A spot welding apparatus for spot welding superposed workpieces by putting the superposed workpieces 3, 4 between a pair of electrodes 1, 2 and applying a welding current between the electrodes under application of pressure, the apparatu...
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JP4532977B2 |
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