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JP3755230 |
To easily and surely confirm the clutch-on only by attaching a simple means, by driving or stopping a motor for shaking to the normal or the reverse and the natural position with a three-positional type solenoid valve fitted to the shaki...
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JP3754191 |
To reduce a tensile residual stress generated at the head and the sole of a rail and to improve belly brittleness resistance/crack propagation property by adjusting the rolling reduction of the rail head/sole, imparting a downward warp a...
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JP3747225 |
To prevent generation of a product defect by assembling a working pin between a straightening pin and a tip nut and restricting a rotation of a straightening shaft and a rotation of a working shaft for slide or releasing its restriction ...
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JP2005337623 |
To provide a boiler panel having improved straightness and flatness.When an alloy coating 14 formed on the single face of the boiler panel 10 with flame coating is welded thereto in a moving heating method, the panel 10 is pulled in a di...
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JP2005305481 |
To provide a hot-straightening apparatus for the end bend of a pipe with which the end bend can be easily straightened for various kinds of sizes of pipes by simple equipment constitution.This hot-straightening apparatus 1A for the end b...
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JP3735326 |
To efficiently eliminate distortion in a forging such as a forging blade. The support system is used for supporting the elimination work of the distortion generated in the forging. Distortion-elimination condition data are stored in a su...
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JP2005299897 |
To provide a pipe with branch where diameters of a main pipe and a branch pipe are same as each other and its manufacturing method capable of easily and inexpensively manufacturing the pipe with branch.A heated metal mold for diameter ex...
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JP3731974 |
To prevent a rail from generating upward camber by executing cold light reduction rolling for controlling the residual stress within the rail and simultaneously providing the bending moment in the foot part direction from the head part o...
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JP3731962 |
To produce a rail reduced in camber and controllable in residual stress by applying at least one or more treatments of descaling, cleaning, defatting, lubricant coating to the surface of a head part or the bottom of the rail between a be...
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JP2005280170 |
To provide a stainless steel round bar having new design property and a manufacturing method for the stainless steel round bar having new design property.The round bar is made of stainless steel and excellent in design property. Hairline...
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JP2005279656 |
To appropriately correct the warping of a U-shape steel sheet pile without affecting the shape of the U-shape steel sheet pile, such as a joint supporting portion, while reducing the portions of the U-shape steel sheet pile constrained b...
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JP2005279657 |
To easily straighten bend of front and rear ends of a hat-shaped steel sheet pile.A bend straightening device comprises upper and lower rollers 21, 22, 21', 22' to roll down a joint supporting part 103 of a hat-shaped steel sheet pile 10...
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JP2005262291 |
To provide a high-speed automatic sorting apparatus for materials to be straightened, wherein charging delay into a straightening machine is eliminated.The high-speed automatic sorting apparatus for materials to be straightened is charac...
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JP3722936 |
To surely correct strain regardlessly of the thickness of a material to be corrected by extending one end of a rotating shaft in the axial direction and making a part of plural drive rollers movable to a retreated position not facing plu...
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JP2005211911 |
To provide a method for preventing the end crack of a seamless steel pipe in straightening the steel pipe.The method for preventing the end crack in straightening the steel pipe performs roll straightening by heating the steel pipe end b...
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JP2005199279 |
To linearly straighten a bend of a flexible pipe such as a drain hose of an air-conditioner.This straightening device A comprises a plurality of hooks 1 mounted on a flexible pipe (a drain hose H) having the predetermined diameter while ...
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JP3700260 |
To almost perfectly prevent shape defect generated at straightening lateral bend of the welded wide flange shape by subjecting flange stocks of two sheets to width adjustment prior to welding/joining H shape. In a production equipment tr...
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JP3694705 |
To provide a strut straightening device, simply and safely straightening a strut of road equipment bent by an accident or the like, small-sized, strong, having excellent coping performance, and inexpensively and easily manufactured. Afte...
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JP3696974 |
To provide a hot press straightening machine for shapes with which bending deformation of products is not generated and graze is not generated in the hot press straightening machine for shapes for executing press straightening from a dir...
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JP2005177861 |
To provide a method for manufacturing a formed article which does not require any device, space or the like for an independent straightening process and which can be easily incorporated into post-processes (machining process and inspecti...
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JP2005169447 |
To provide a working method by which two-dimensional projected length Lp of the outer corner parts of shapes such as a channel, an angle and a hat steel is made small and metallic worked goods having the small two-dimensional projected l...
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JP2005153001 |
To bore a tube insertion hole at the correct position while straightening the outline dimension of an extruded tank.In a heat exchanger composed of at least tubes having a heat exchange medium passage, fins alternately interposed between...
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JP2005152964 |
To provide a roller curing method by which the surface grade of a material to be cured is not lowered and a desired curing effect is rapidly obtained even when a roller forcing device is operated while making the material to be cured pas...
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JP2005153022 |
To provide a tube straightening device to improve a tube manufacturing step, in particular, a tube straightening step.The tube straightening device (1) to straighten a tube (2) has an expander head (8) which is embedded in the tube (2) a...
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JP2005144502 |
To provide a method for changing the guide bar of a two-roll straightener which can make the guide bar lightweight by modifying the guide bar to a structure in which only the wearing part is detachable and which enables the guide bar to ...
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JP2005138146 |
To provide a method for efficiently producing a bar material having good surface state.A billet heated with a heating furnace 10 is subjected to a hot-rolling by a rolling mill 12 to obtain a rod blank. This rod blank is wound in a coil-...
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JP3682086 |
PURPOSE: To obtain a shaping device to shape a rim for automobile wheel with high reliability not causing misalignment and inclination by screwing tip side of a cotter divided into two in the axial direction to reference side movably for...
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JP3669565 |
To provide a processing apparatus for the drum type workpiece which is simple in structure but can process the spline after correcting the circumferential wall section so that the spline diameter of the circumferential wall section of th...
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JP2005103557 |
To provide a device and a method for manufacturing a tube with grooved inner face by which grooves can be uniformly formed less liable to break the tube during machining even when using a long tube.Straightening rolls 25a-25e alternately...
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JP3668524 |
PURPOSE: To execute strain straightening in short time, in high precision and without requiring restraightening. CONSTITUTION: (i)A full length sensor system to show a coordinate of full length strain shape of long size material before s...
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JP2005081393 |
To keep a shape of a metal tube by applying plastic deformation on the metal tube and then removing the stress gradient incurred inside and outside of the bending direction.A forming metal die 3 is equipped with a plurality of projected ...
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JP3659061 |
To provide a device for rolling inner surface beads of a steel pipe capable of maintaining a satisfactory lubricant state in slide parts within a roll holding truck within the pipe even if the inside of the pipe is kept in a high tempera...
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JP2005066665 |
To provide a straightening device of the bend of a corrugated fine with which the bend of a corrugated fin which is wholly bent is straightened easily and surely.This device has a pair of first straightening gears 10 which are arranged o...
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JP2005066644 |
To provide a method for manufacturing a T-beam by which bend after cutting is reduced by decreasing residual stress in an H-beam.In the method for manufacturing the T-beam, one or more methods among the next methods of (1)-(3) are used i...
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JP2005062117 |
To provide a measurement device 12 by which the inspection of an outer diameter of round bar steel 14.The measurement device 12 comprises a leveler 16, a sensor 18, a controller 20 and a computer 22. The leveler 16 has a first roll 28 an...
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JP2005040852 |
To provide a positioning and correcting jig device for a cylindrical member which device can correct the member to a same axial roundness without giving damage to the cylindrical member.The positioning and correcting jig device is compos...
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JP3644121 |
To reduce inclination defect of flat part while flattening ruggedness defect in forming the corrugated fin. A brake device 7, which contracts a fin material 1a so as to bring adjoining bent parts 1b into contact each other, is arranged a...
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JP2005034882 |
To provide a method and device for correcting seam distortion of a steel pipe capable of restraining the distortion of a seam portion more than before in the pipe circumferential direction generated at the time of manufacturing an electr...
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JP3634514 |
To improve the dimensional tolerance of a steel tube, to expand and straighten its flat shape and to enable an excellent circumferential welding by forming the bottom part of the plunger fixed a strap holder into an inclined surface and ...
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JP3634961 |
To straighten the bend of a crankshaft without lowering the fatigue strength in fillet parts by cold roll-working, with high dimensional accuracy, moreover, at high efficiency. The expansion and contraction amount of arms is measured aft...
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JP2005003715 |
To provide a non-straight cylinder having a cover layer of which the surface is smooth and uniform, and to provide its manufacturing method.The circularity of a thin thickness cylinder is enhanced by correcting and inserting a right cyli...
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JP2004344932 |
To provide a method for producing a grating by which a welder to be used for welding can be downsized, the capacity of impressed current is made small to reduce cost, and the mutual interval of main bars can be made small.A plurality of ...
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JP2004337880 |
To provide a portable type wire drawing device with which a linear-state piping can be obtained.This portable type wire drawing device is provided with one pair of bodies formed as almost U-shape in the cross section, at least three piec...
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JP2004330297 |
To provide a low residual stress correction method for a seamless steel pipe small in dimensional deformation caused by the residual stress strain when cutting inner and outer surfaces of a cutting ring, particularly, used for a bearing ...
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JP2004322185 |
To provide a straightening method by which proper straightening is performed to a long shaft member having various patterns of the form of strain.This method is provided with the stages for: measuring the amount of strain in a plurality ...
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JP2004322151 |
To provide a coiling bender which can automatically form the internal piping etc., of, for example, a water heater by subjecting a pipe-shaped work to prescribed bending and can form bending sections to prescribed shapes.The stationary b...
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JP2004322187 |
To solve such problems that the number of times of straightening increases, straightening becomes impossible, a long shaft member is damaged or the like by the lowering of the accuracy of the stop position of a press device for pressing ...
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JP3613959 |
To obtain an undeformed insulating shape by forming at the approximately same time of unifying an inside member and outside member which are extruded with an insulating member. Fitting rollers 2 and correcting rollers 3 are arranged alon...
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JP2004314176 |
To provide equipment for producing continuously cast rods of aluminum alloy with which continuously cast rods of aluminum alloy excellent in quality are produced by efficiently peeling skin portions.The equipment is provided with a melti...
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JP2004300899 |
To provide a strut straightening device, simply and safely straightening a strut of road equipment bent by an accident or the like, small-sized, strong, having excellent coping performance, and inexpensively and easily manufactured.After...
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