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Patent Searching and Data


Matches 801 - 850 out of 3,563

Document Document Title
JP2004225558A
To make a highly accurate correction by properly supporting an engine valve.A face part of the engine valve is rotatably supported by a support member by regulating the rotational axis direction, and a neck part 1c of the engine valve 1 ...  
JP2004216409A
To provide a reverse straightening device for a round steel bar which can make bending specifications stricter and can make shift to reshot blasting treatment and the like possible without increasing the number of handling times.The reve...  
JP3546460B2
PURPOSE: To make troublesome cutting machining unnecessary and shorten a processing time drastically and improve productivity by correcting the projection degree of ribs into a size that corresponds to a bearing by push-pressing plural r...  
JP2004202554A
To provide a metallic tube having high roundness and high straightness at a low cost by continuously performing a finishing process in the manufacturing process of an electric resistance welded tube, maintaining high productivity and rea...  
JP3539625B2
To provide a device for rolling inner surface beads of a steel pipe capable of maintaining a satisfactory lubricant state in the slide part within a roll holding truck within the pipe even if the inside of the pipe is kept in a high temp...  
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 ...  
JP2004174535A
To surely guide a bent rolled stock to a straightening stand and to perform satisfactory straightening.The straightening device 5 is provided with the straightening stand 10 and a guiding means 20. The straightening stand 10 has a plural...  
JP2004174557A
To provide a circularity correcting method for obtaining a thin-walled cylinder of less dispersion of film thickness, and a circularity-corrected thin-walled cylinder, and the thin-walled cylinder having a surface layer material thereof,...  
JP3536995B2
PURPOSE: To keep pressing force even if oil leaks to some extent by exposing a pressure accumulating part provided with a piston supported by an elastic member to a ring body communicated with a hydraulic chamber between the ring body an...  
JP3534466B2
PURPOSE: To cut bar steel into each product with an accurate length and also, reduce the maintenance and management expenses of the device by omitting a measuring device requiring maintenance inspection, concerning the device which cuts ...  
JP2004141923A
To provide a method and a device for straightening a shaped steel by which the degradation of a material near the base part ( K zone ) of the shaped steel, and also the degradation of the accuracy of straightening caused by defective rol...  
JP2004141924A
To provide a straightening method for a shaped steel and its device by which the degradation of the material near the base part ( K zone ) of the shaped steel, of course, the problems of disturbance caused by bending moment are effective...  
JP2004122156A
To provide an apparatus for producing an internally grooved tube in which an internal groove with a stable shape in a longitudinal direction can be formed at a low production cost, and to provide a method for producing an internally groo...  
JP3520646B2
To improve the dimensional accuracy of rolled shapes by respectively providing sizers on the inlet side of an intermediate universal mill, the outlet side of an intermediate edger mill and the outlet side of a restraining guide device an...  
JP2004114083A
To provide a pipe forming apparatus with which the efficiency of the forming work of a tubular pipe is improved and the accuracy of the roundness of the tubular pipe by enabling working and forming within the same apparatus after evaluat...  
JP2004082169A
To provide a straightening method of an extruded material which is high in dimensional accuracy and by which cost for straightening is not increased.The straightening method of the extruded material 50 comprises a stage where the extrude...  
JP3506846B2
To further improve the working efficiency in pipe bending by detecting a terminal of a bobbin by a material end detecting means. Pipe bending processes, A, B are provided on an automatic pipe bending equipment of a frame 11. Bobbins 211,...  
JP2004074257A
To suitably straighten into the straightness of a long material to be straightened, having rectangular cross section and to improve the workability.In a method for straightening the straightness of the long material W to be straightened,...  
JP3503381B2
To obtain higher rolling efficiency even when the number of universal rolling mills used is the same as that of a conventional universal mills and to reduce the number of passes in the universal rolling and the required time of rolling i...  
JP3503380B2
To reduce the number of universal rolling mills and to shorten the length of rolling line and enlarging freedom of layout by stopping rolling in the rolling line on a state of flange in a shape outwardly inclined and then straightening t...  
JP2004042124A
To improve the productivity of U-shaped steel for reinforcing steel floor panels which compose a road surface of a bridge.NC processing of a bolt hole and a notch is carried out at the end part of a steel strip material, and three steel ...  
JP3494532B2
To provide a manufacturing method of a rocker arm excellent in dimensional precision and forming a roller incorporating part at the end part. In the manufacturing method of the rocker arm 1 formed as fork-state at the one end part of the...  
JP2004019854A
To provide a constant water feeding interposition method capable of using endless connection pipe elements in the circumferential direction of a pipe.This constant water feeding interposition method comprises a correction step for correc...  
JP3489308B2
To automatically correct the outline of an insert work and to supply it to the die by providing a plate that vertically corrects the lower projecting piece of a sheet-like insert work and a jig that horizontally corrects the horizontal p...  
JP3480726B2
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...  
JP3478748B2
To obtain a bending method for a double tube capable of obtaining the double tube having no wrinkle in an inner tube. In an outer tube 2, an inner tube 4 having a smaller outer diameter than the inner diameter of the outer tube is insert...  
JP3474552B2
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...  
JP2003340521A
To provide a structure capable of straightening a crankshaft not only in the vertical direction but in all directions at one time by a die clamping force of coining dies in the vertical direction. Positioning grooves 14, 15 are formed in...  
JP2003535697A
A section straightening machine is operated by a method which involves passing the structural sections through the array of straightening tools. Section straightening forces are applied to adjustable shafts carrying the tools and adjuste...  
JP3471418B2
PURPOSE: To easily remove residual strain by energizing DC or AC in the direc tion nearly vertical to the actuating direction of a residual stress causing resid ual strain at the part where residual strain.is generated on a press-formed ...  
JP2003334614A
To provide an apparatus that makes feasible for roll replacement for short time at low costs in a small space, and has a simple structure.In a roll replacement apparatus 10 of a cantilever type roll straightener 22 capable of lifting wit...  
JP2003320417A
To provide an apparatus capable of easily and precisely correcting distortion after welding a header from which stress is not removed to a stub.In an apparatus for correcting distortion of a header structure, a header structure 1 is form...  
JP2003320416A
To provide a two-roll type straightening method for rod steel improving not only exfoliation of a scale on the surface but unevenness on the surface at two-roll straightening, and reducing the flaw noise and enabling the precise detectio...  
JP2003311328A
To provide a bend straightening device for straightening a bend efficiently at high accuracy by loading truly necessary straightening load by one pressurization when straightening the bend of a wire rod.This device is provided with a mea...  
JP2003305513A
To provide a method and a device for correcting a shape steel capable of effectively avoiding any problem of disturbance due to bending moment, needless to say material degradation in the vicinity of joint part (K zone) on the shape stee...  
JP2003305514A
To provide a correcting device capable of achieving improvement in material quality for K zone as well as bilateral pressing across overall length of the correcting material to straighten even a longer shape steel, and a correcting metho...  
JP2003305515A
To provide a device capable of eliminating degradation in material quality for K zone of a shape steel as well as freely-adjusting a pass line while rolling.The correcting device for shape steel comprises a corrective roller 2 allowing p...  
JP3461685B2
To obtain the residual stress controlled rail having few camber by making the upper roll diameter equivalent to the head part rolling side smaller than the lower roll diameter and making the circumferential speed of the roll in the side ...  
JP2003290849A
To provide a cold forming method for diameter reduction of a metallic pipe, a method that can be carried out in a smaller equipment and machine.The cold diameter reduction press forming method for a metallic pipe is characterized in that...  
JP3456053B2
PURPOSE: To efficiently straighten the bending at high precision by subtracting the amount corresponding to the elastic deformation from the measured value by a total deformation detecting means, comparing the result with the initial end...  
JP3453958B2
To reduce the number of processes and the period of production so as to make a T-steel efficiently by decreasing residual stress of an H-steel, applying web cutting or preliminary working to it, correcting its shape vertically and horizo...  
JP3453364B2
The Straightening machine (1) with angled rollers, at a roller stand, has the rollers mounted in upper and lower yokes with vertical movement settings to the upper yoke and its roller. The upper roller (6) is at a built-in component (8) ...  
JP2003278968A
To form the protrusion section of the spigot of a pipe efficiently in a mass production process.This device is provided with an elliptic opening corrective device 22 for correcting the elliptic opening produced at the spigot 2 of the pip...  
JP2003274615A
To improve circularity and inner/outer diameter accuracy of a yoke by eliminating bending inclination defect of a steel plate which is rounded into a cylindrical shape.By the following steps, the motor yoke made of a steel which is shape...  
JP2003527969A
A bend die assembly retrofits compressible flanges to permit the flanges to be reinstalled around tubes to form a sealing contact. The bend die assembly includes a base and a bend die. The base includes a first body portion that couples ...  
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...  
JP2003260516A
To provide a method and device for manufacturing a shape capable of securely setting within permissible limits bending of the shape, camber of the shape, squareness of a flange and camber of the flange after cooling the shape to room tem...  
JP2003251412A
To provide a method which can reliably correct the angle of a flange in a steel shape to a web over the total length of the steel shape.When correcting the angle of the flange to the web by passing the steel shape having the web (w) and ...  
JP3440268B2
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...  
JP2003230927A
To provide a manufacturing method for a rough shape material for a bearing ring which solves the problem of a long machining time required for a grinding process to remove the quenching strain of a ring material which is cold-rolled and ...  

Matches 801 - 850 out of 3,563