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JP4890237B2 |
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JP2012040577A |
To provide a method for manufacturing a cylindrical shaft having a stable shape.The method for manufacturing a cylindrical shaft includes a step for processing a cylinder to form the cylindrical shaft curved in a constant direction in an...
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JP2012020305A |
To provide a method and a device, enabling suppression of occurrence of local shape deformation of a deformed strip, and enabling straightening to continuously equalize residual strain without imparting minute unevenness to the surface o...
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JP4866434B2 |
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JP2012016742A |
To provide a method for manufacturing a cylindrical shaft with a stabilized shape.The method for manufacturing the cylindrical shaft 16 includes: a cylinder working step of bending a metal plate cylindrically so that a pair of opposite e...
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JP4854886B2 |
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JP4853788B2 |
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JP2011255401A |
To prevent the occurrence of cracks as much as possible.There is provided a steel pipe for a cylinder which constitutes an outer cylinder of a cylinder actuator where a piston is slidably fitted to the inside. In the steel pipe, a drawin...
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JP2011251334A |
To provide a method for suppressing surface indentation flaw in an element tube (an element tube for a seamless steel tube) applied with correction by a straightener after made by hot tube making, and thereafter provided for cold working...
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JP4826751B2 |
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JP4821464B2 |
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JP4819825B2 |
The manufacturing device for bending an electromagnetic element of an electrical machine, which includes a stator lamination (5), has a first device (10) for bending the stator lamination (5) to form a pre-curved stator lamination and a ...
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JP2011229373A |
To provide a method for manufacturing a rotor used for electric machines, in particular a rotor yoke used for windmill generators, with significantly reduced manufacturing time and cost.The method for manufacturing a rotor used for elect...
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JP2011224620A |
To correct the deflection of a crankshaft in a short time with high accuracy.The values of deflection amounts Za, Zb and extending directions (deflection phases) of shaft parts 18, 26 of the product crankshaft 10b are measured by deflect...
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JP2011224621A |
To shorten time required to correct the deflection of a crankshaft.The values of deflection amounts Za, Zb and extending directions (deflection phases) of shaft parts 18, 26 of the product crankshaft 10b are measured by deflection sensor...
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JP4807409B2 |
In straightening a tube using a roll straightening machine provided with drum type straightening roll pairs vertically opposingly disposed, at least an outer layer portion of a roll main body is made of elastic material having spring typ...
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JP4748837B2 |
The method of fabricating low-cast, high-yield strength weld wire for welding includes displacing the weld wire through a rotary straightener having a pair of dies rotatable in opposite directions. Each die has a slider for introducing a...
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JP4731337B2 |
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JP4705283B2 |
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JP4699121B2 |
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JP2011104639A |
To provide a device for repairing a container capable of repairing a skirt part even if the center part of the skirt part does not have a sufficient space.A device 1 for repairing a container to repair deformation of skirts 102, 103 of a...
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JP4689894B2 |
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JP4687890B2 |
The forming recesses (1, 3) of a lower die (2) and an upper die (4) are formed to have a semi-oval profile so as to provide a forming space S almost oval in section with the dies closed. The parting line L between the lower die (2) and t...
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JP4687327B2 |
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JP2011098366A |
To provide a method of manufacturing conveying rollers with which the deterioration of conveyance properties is suppressed.The method of manufacturing the conveying rollers 31 for conveying recording media includes: a first step where a ...
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JP2011088731A |
To provide a method of manufacturing a conveying roller restricting deterioration of conveying characteristics.The method of manufacturing a conveying roller 31 provided in a printing device for recording information onto a sheet-like re...
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JP2011088723A |
To provide a method of manufacturing a conveying roller restricting deterioration of conveying characteristics.This method of manufacturing a conveying roller for conveying a recording medium includes: a first process for forming a nearl...
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JP4678915B2 |
To obtain the subject steel filament with high fatigue resistance so designed that surface residual stress lies on compression side and compressive residual stress is uniformly distributed both circumferentially and longitudinally and, f...
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JP4664495B2 |
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JP4656718B2 |
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JP2011025308A |
To provide a method for manufacturing a steel bar capable of preventing the occurrence of twist in a wire rod drawn from a coil, and straightening the bend of the wire rod in the direction where straightening is needed, securely, at room...
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JP2011020155A |
To provide a strain correcting device for an annular metal member capable of correcting strain of the annular metal member irrespective of any change of the profile.The strain correcting device for the annular metal member has a position...
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JP4625320B2 |
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JP4614698B2 |
A straightener in which the shape of guide bar facings is simplified and the guide bar facings are effectively used. In the straightener, a clearance (S) opening in a direction orthogonal to a line connecting the axes of straightening ro...
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JP4611139B2 |
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JP4610555B2 |
Apparatus for reducing the diameter, rounding or straightening of pipe or tubing by rolling comprising a plurality of cylindrical rollers arranged in a parallel-cylindrical array through which the pipe or tubing is passed, the rollers be...
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JP2010284711A |
To make automatic measurement and automatic correction of a work that is performed by hand work using tools and machines conventionally possible in this way and establish the mechanization of the work which is performed by human wave tac...
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JP4601848B2 |
To eliminate a spiral-shaped unevenness of a machined mark caused by forming rollers, without applying modification to the forming rollers, without decreasing the production efficiency, easily and surely, and surely eliminate the spiral-...
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JP4580046B2 |
A steel profile, which at least during straightening has a largely homogeneous temperature distribution over its cross section, is straightened at a temperature within the structural transformation range from Ar1 to Ar3 of the steel.
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JP3163503U |
To provide a die-cast product strain correction device which is mounted on a press machine or the like and once set, a place where a product to be straightened is pressed and a pressure are constant, work is standardized, and there is no...
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JP4562152B2 |
A substrate treatment process includes plural steps of delivering a long substrate with application of tensile force to the substrate, wherein the strength of the tensile force is changed at least between a first delivery step and a seco...
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JP2010221294A |
To provide a tool for straightening a pipe end, with which the pipe is chamfered.This tool for straightening the pipe end includes a semispherical head 20 for chamfering the pipe by crushing the inner peripheral corner part of a pipe to ...
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JP2010194610A |
To provide an apparatus for removing dents on a pipe.The apparatus for removing the dents on the pipe in the mounted state, especially for removing the dents on the pipe of a heat exchanger pipe, an individual system into which these app...
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JP4537182B2 |
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JP2010162608A |
To provide a method for manufacturing a bar-shaped base stock for cutting capable of manufacturing the bar-shaped base stock having the excellent dimensional accuracy. The bar-shaped base stock which substantially consists of aluminum or...
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JP2010162555A |
To provide a correction method for manufacturing a seamless steel tube and a device for the same, specifically a method for carrying out the correction without generating a portion having an abnormal dimension and shape at an end of a ma...
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JP2010162579A |
To provide a method for manufacturing a forge-welded steel tube, capable of remarkably reducing the occurrence frequency of crushing of the front edge of the tube when rotationally straightening a forge-welded steel tube stock. In the me...
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JP4513930B1 |
Problem: There is provided a pipe end shape correcting apparatus capable of improving the roundness without loss of work efficiency and the mechanical damage to a weld bead even in the case where the pipe ends of UOE metal pipes having v...
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JP4513240B2 |
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JP4474970B2 |
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