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JP2003191053 |
To provide a method for blasting calibration of a chill mold including a tubular mold or a block mold in a relatively simple manner and at a relatively small cost.In a method for blasting calibration of the chill mold, a calibrating mand...
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JP2003191011 |
To manufacture a metallic tube 7 excellent in dimensional accuracy easily and at a low cost.This method has a U-bending stage E for forming a square metallic base stock 2 into a U-shape, and an O-bending stage F for bending this metallic...
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JP2003191014 |
To obtain a method and a device for manufacturing a bottle can by which a bulged part the cross-sectional shape in an arbitrary position in the circumferential direction is uniform is formed in a specified position.In a manufacturing met...
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JP3440268 |
To prevent a cut face from deforming and a variation in the product length of final cutting from occuring. This system is provided with a multi bar straightening device 1 which multi-straightens steel bars, an inlet side guide pinch roll...
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JP2003170236 |
To provide a cylindrical member having a spline which can be molded in a short period of time and which has a high working accuracy and to provide an apparatus and a method for manufacturing the same.The manufacturing apparatus 1 manufac...
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JP2003170223 |
To provide a method for correcting the end of a steel pipe capable of sufficiently correcting the curvature change of a short period in a tube circumferential direction corresponding to a divided pitch of dies, and an apparatus with a si...
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JP2003164916 |
To provide a deflection correction method for a formed product in a roll forming apparatus which enables smooth correction of deflection occurring in the formed product without necessity for increase in an equipment cost or installation ...
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JP2003164918 |
To provide a method and apparatus for bending work which controls so as to minimize flattening induced to a metal pipe as much as possible.In the method to perform continuous bending work moving a heated zone 6 continuously to the pipe l...
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JP3434981 |
To efficiently provide straightness over a whole length of a long member with excellent accuracy without specially improving an accuracy of an press straightening. First to fourth sensors 17-20 are provided on a press body 1 with equal i...
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JP3433697 |
To decrease the dimensional fluctuations at the time of roll straightening of heat transfer tubes for heat exchangers and to prevent the buckling of fin peak parts at the time of the roll straightening of low fin tubes by forming at leas...
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JP2003154410 |
To provide a method and a device for straightening shapes which are excellent in the accuracy of the dimension of a cross section and the straightness over the entire length and by which the internal residual stress and the local deterio...
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JP2003154426 |
To provide a method for forming the mouth part of a threaded metal vessel which can prevent any bridge breakage of a cap.The threaded metal vessel is formed of a metal material by impact forming, drawing or a draw-ironing, and the vessel...
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JP2003152154 |
To provide a lead correctional device for correcting leads for an electronic part for a semiconductor device or the like so as to have a specified pitch without generating any external injury, and to provide a comb tooth employed therefo...
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JP2003145347 |
To provide a pipe end correcting jig capable of correcting the shapes of and chamfering pipe end portions of various sizes and types of pipes by increasing the type and number of correcting cutting edges, eliminating the possibility of d...
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JP3429636 |
To adjust the interval between rolls which are provided on a spindle by large strokes. A fixed roll 5A is provided through a roll sleeve 6 on the spindle 2 which is rotationally driven and also a movable roll 5 and passive thread part 13...
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JP2003136181 |
To correct overturning of a counterweight in a correcting direction and in a perpendicular direction simultaneously in the case of correcting the bend of a crankshaft coarse material.The crankshaft coarse material S is restricted under p...
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JP2003136139 |
To provide a method for correcting deformation of a cylindrical water- cooled crucible capable of correcting deformation accompanying repeated use of a cylindrical water-cooled crucible such as a consumer electrode type arc melting furna...
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JP2003136140 |
To provide a device for correcting a flange buckling capable of efficiently and accurately correcting a flange buckling generated when a channel shape cross sectional steel stock 1 such as a vertical rib provided for reinforcement in the...
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JP2003136138 |
To provide a method and device for correcting a section steel excellent in a cross section dimensional accuracy in the total length and straightness, and having less internal residual stress and less local material degradation.The method...
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JP3424148 |
To provide a straightening device which is specially effective on the reduction of the upper/lower bending at the outlet of the tip and rear ends of a wide flange shape and with which the change of a guide for preventing the coiling-arou...
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JP3419293 |
To simultaneously straighten a bend of a web and perpendicularity between the web and a flange by combining a continuous bend straightening device for the web with a continuous straightening device for defective perpendicularity between ...
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JP3419294 |
To continuously straighten all of a bend of a web, a warp of the web and defective perpendicularity which generate in a wide flange shape steel. A straightening machine 21 is provided with vertical rolls 32a, 32b being a pair of first st...
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JP2003112221 |
To provide a method and device that enable an extruded material to be tension-straightened by imparting sufficient bite to all extruded materials including those of high-strength aluminum alloy and thereby imparting a prescribed tension,...
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JP3416744 |
To prevent the reduction of the yield and to improve the working efficiency by fixing a resting stretcher on a rail, etc., at a proper position corresponding to the length of an extrusion shapes to be stretch-straightened and resting. A ...
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JP3413419 |
To remove a residual stress on a radiused part by constituting a lower horizontal roller to vertically move a roller shaft in a vertical direction and a pair of vertical rollers to move in the roller axial direction of a horizontal direc...
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JP3414128 |
To obtain the straightening method of wide-flange beam to efficiently straighten to high quality by applying a rolling force from a flange outer side face to a web part with a vertical roller while pinching a fillet part of wide- flange ...
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JP2003088927 |
To accurately form a tubular member of a special shaped cross section having a bent part of a desired shape from a tubular base stock made of aluminum alloy at low pressure and with a small and inexpensive equipment in a hot forming meth...
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JP2003088917 |
To provide a straightening device which can straighten a work of high strength before form-rolling a distorted screw without degrading the surface quality but with high production speed and accuracy.Three segment dies 3 are disposed at e...
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JP3411179 |
To miniaturize a vertical-roller supporting device and to obviate a vertical-roller moving device and angle adjusting mechanism by making the shaft of the straightening roller into both end supporting type and also connecting the vertica...
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JP2003080318 |
To provide a screw type bend correcting machine for steel material at a low cost by compactly simplifying a large-scaled hydraulic machine.A screw (male screw) 7 and a pressurizing shaft 11 are integrated and they are moved with a rotary...
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JP2003080317 |
To provide a wide flange shape having fillet parts excellent in straightness and toughness by rolling straightening.The wide flange shape excellent in the straightness and the toughness is characterized in that the hardness of materials ...
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JP2003080316 |
To provide a rail having residual stress distribution to provide excellent durability and straightness by rolling straightening.The rail excellent in the durability and the straightness, has compressive residual stress in the outer layer...
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JP2003071642 |
To improve yield by modifying a micro hole defect occurring in a micro hole defect work piece.In modifying the micro hole defect in which only a through diameter is smaller than a normal hole existing in a round through hole formed in th...
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JP3403762 |
PURPOSE: To form a vehicle structural member composed of an aluminum material having rectangular cross section curved in three dimensions without developing fold and crack on the wall surface. CONSTITUTION: After extrusion-forming a cyli...
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JP3403499 |
PURPOSE: To provide a free end positioning device of a member which can position simply and precisely without measuring the shape of the member or the position of the free end. CONSTITUTION: The device is provided with a body positioning...
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JP2003053428 |
To rapidly and efficiently straighten a bent bar-shaped member so that its axial center takes a smooth linear shape. This tool straightens a bar-shaped member A so that its axial center Y becomes linear. Two reaction force receiving memb...
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JP3400225 |
To provide a manufacturing method that makes a hair pin tube easily insertable to the insert hole of a heat exchanger body by applying a process for straightening each leg on the bent hair pin tube through the bending device. A linear he...
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JP3400564 |
PURPOSE: To eliminate residual stress in the radial direction of a multilayered tube composed of different kinds of metal by integrally hot-joining such tube whose cross section is different in most curvatures against a target tube shape...
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JP3401452 |
To provide a simple and cost-effective method and a proper tool for finishing holder windows. In a method for finishing holder windows 51 of a spherical body holder 48 for a uniform-speed universal ball joint, the spherical body holder 4...
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JP2003039114 |
To provide a device for removing strain of a bottomed tubular body member capable of easily removing strain of a plurality of bottomed tubular body members having different shapes and sizes without individually replacing the specialized ...
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JP3394969 |
PURPOSE: To largely improve the working efficiency and to easily and rapidly change a roller. CONSTITUTION: In a roller straightening device for an H-steel, a roller unit combined with a flange restricting roller 2, a web pressing roller...
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JP3396445 |
To prevent mill scale or the like from dropping onto a sliding portion of a movable roll while a section steel is being straightened, by providing a dustproof cover between a fixed roll and a movable roll. An expandable dustproof cover 2...
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JP3394968 |
PURPOSE: To easily cope even with a case of dealing with an H-steel with a definite external dimension which has a large demand in recent years, to largely improve the working efficiency and to simply and rapidly change a roller without ...
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JP2003033817 |
To reduce a working time and cost for straightening of a web angle, reducing a deviation of the web angle in a work to be straightened as far as possible, by installing at least two or more sets of rolls in parallel to web guide rolls wh...
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JP2003033816 |
To prevent occurrence of a roll mark by applying a swing mechanism to right and left upper rolls, which can press a flange surface to be straightened while keeping rotating circumferential surfaces of the right and left upper rolls const...
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JP3392758 |
To smoothly and precisely straighten a plate-like structural material having curved longitudinal ribs by simple control. Two sets of press heads 13 are provided in upper and lower frames of a square base frame l0 so as to be transferable...
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JP3387778 |
To accurately determine the degree of deformation of the outer circumferential surface of workpiece while the positioning accuracy of the workpiece is set gently, by selectively using a cylindrical part and a circular sharp protruded par...
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JP2002346634 |
To provide a method, a machine and a unit for straightening shape steel, which achieves a mechanical straightening of H-steel or T-steel, providing reduction in the straightening time and an accurate and consistent straightening. A pair ...
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JP3373245 |
PURPOSE: To provide a bent pipe, in which the radius of curvature is the pipe diameter or smaller and the curvature is uniform and the roundness in the cross section of a passage is high, in a low cost and its manufacturing method. CONST...
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JP3373766 |
To control vertical camber which is generated by rolling a rail with light force after roller straightening at low cost. In light-force rolling for pressurizing the rail in the vertical direction after roller straightening in manufacture...
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