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Patent Searching and Data


Matches 951 - 1,000 out of 3,564

Document Document Title
JP3274803B2
To repeatedly bend a bar stock even in a horizontal plane with a simple structure, to cope with various dimensional change of the bar stock, and to provide excellent correction accuracy and quality. Correction rollers 2, 3 are fitted to ...  
JP2002102966A
To manufacture and repair even a large diameter pressure vessel with less man-hours and high quality and prolong the lifetime.A steel plate 5 is cut in a prescribed length, bent parallel in the main rolling direction to fabricate a longi...  
JP3271469B2
PURPOSE: To obtain high straightening precision. CONSTITUTION: By inputting a signal to identify an individual body of material to be straightened, a straightening position, a pressing direction, a plastic deformation required for straig...  
JP3268378B2
PURPOSE: To provide a manufacturing method for forming the angle in the stepped part of a special shaped bar material having recessed lines or projecting lines up to right angles without wasting materials at a relatively higher speed by ...  
JP3267185B2
To reduce defects by burning flaw and to enable cold-drawing even it is a steel tube having several tens μm thick scale. After generating cracks 3 on the scale 2a of a steel tube 2 with the scale 2a stuck, cold-drawing is executed by oi...  
JP3264140B2
PURPOSE: To provide a gear device small in the manufacturing cost and long in the service life by projecting a center part in the tooth trace direction from each end part so that the tooth flank and the tooth crest of an internal gear de...  
JP2002066665A
To provide a working method of a cylinder body capable of satisfactorily forming an end portion of an approximate true circle by directly processing an elliptical cylinder body and also capable of particularly improving working capabilit...  
JP3262712B2
To quickly correct defective shape and to improve the dimension precision by continuously measuring the deviation of the center of a welded wide flange shape steel at the downstream side of a welding device and controlling the passing po...  
JP2002059216A
To efficiently manufacture a plane body of a high precision by efficiently straightening the plane body.By comparing a plane suitable for straightening (hereunder, expressed as straitening objective plane) a plane section 1a or an outer ...  
JP2002047537A
To provide a material for a round bar which does not eventually bend, reliably suppresses the bend to be negligibly small so as not to raise any problems in the industrial use even when a bend occurs, and has no degradation in surface qu...  
JP2002035869A
To provide a die for a mechanical pipe expanding machine capable of reforming a pipe by pressing the portion which is formed on both sides of a bead of steel pipes or the like and which is untouched with the expanding machine in reformin...  
JP3250466B2
To provide an expansion die effective for correcting a large longitudinal ellipse before expansion and capable of securing the true circularity after expansion even for the intermediate size by providing each die segment with different t...  
JP2002018524A
To provide a deformation straightening apparatus capable of precisely straightening a deformation in a short time while suppressing a hardness variance due to a heating fluctuation in straightening a deformation.In the state an outer dia...  
JP2002001428A
To provide a method for manufacturing a quadrangular steel pipe which can make each flat plate section planar and each size and configuration of the right- angled bending section uniform.When a group of rolls 42-44 of a rolling means 40 ...  
JP2002001433A
To shorten time involved for a deformation correcting work by reducing an excessive or insufficient bending of a workpiece and decrease fatigue of the workpiece accompanying the correcting work.The deformation correcting apparatus 1 is p...  
JP2002001442A
To provide a manufacturing method for a square shape steel pipe in which the intermediate flat plate portion is made flat, and the size and shape of each right angle bent portion are made even.Two portions near equivalent to groove porti...  
JP2002001431A
To provide a surface reforming correction machine that can perform a process to correct straightness of a round bar steel stock and a process to grind the surface of the round bar steel stock at the same time.The surface reforming correc...  
JP2001353524A
To quickly cope with a dimensional change in a tube and to improve a precision in a tube cutting length.A tube drive mechanism 10 inclusive of a pair of conveyer belts 43, 62 opposing each other is used for the purpose of transporting co...  
JP2001353542A
To provide a method and a device for drawing a galvanized steel tube in which a surface of the galvanized steel tube is prevented from being blackened in drawing the tube.In the galvanized steel tube drawing method in which the galvanize...  
JP2001329316A
To provide a hot finished seamless steel tube which is less in the dimensional changes caused by the residual strain in the case of grinding inner and outer surfaces of a cut ring used for a bearing race, etc.In this manufacturing method...  
JP3216932B2
PURPOSE: To carry out reconditioning and bending with high accuracy by providing a first bending punch that bends outer leads of a semiconductor device held between a fixed plate side receiving table and a movable plate side holding memb...  
JP2001276928A
To provide an interlocking member which helps to form a convergent portion easily in a short period of time. Fine diameter convergent portions 31a, 31b are formed respectively through cold forging on both ends of a member body 21 of a su...  
JP2001269713A
To provide a high-strength stainless steel welded tube for suppressing integranular corrosion cracking in a weld heat-affected part by welding heat and a method of manufacturing it. The tensile residual stress in the circumferential dire...  
JP2001259727A
To provide a cooling bed device which the bends in both end parts of a long size material is straightened on the way of conveyance after water- cooling of the rolled long size material.A chain conveyer type conveying device 4 for conveyi...  
JP3211709B2
To provide the manufacture of the shape steel even more excellent in the dimensional precision of a product and with few defects on its surface. By providing a dimension gage SO on the inlet side of a breakdown mill BD, by feeding forwar...  
JP2001259741A
To provide a circularity correcting apparatus capable of easily correcting an end part of a steel tube even when a deformed steel side is of relatively a large size and is fixed.The apparatus is provided with a fixed circularity correcti...  
JP3211710B2
To provide a method for manufacturing shaped steel much more excellent in dimensional accuracy of products and with less surface defects. A press machine, two-high mill or universal mill 10 is arranged on the upper stream side of a break...  
JP2001259763A
To provide a mechanism tube expanding machine capable of reducing wear of relatively moving faces against each other and eliminating a lubricant oil use in these regions.The mechanical tube expanding machine has a pyramidal polygonal bod...  
JP2001252720A
To provide a roller straightening method for stably straightening a warp and a wavy shape of a material to be straightened, and its equipment.In order to secure biting property of a material to be straightened and to exhibit a sufficient...  
JP2001232416A
To provide a forming device for shapes with which the accuracy of a cross-sectional shape is efficiently improved by hot correcting the offset of the center that is generated at rolling.The forming device in which web rolls 2 for restrai...  
JP2001513030A
(57) [Summary] The present invention relates to a device that introduces pipes, bars, rods and similar raw materials into a machine that is machined as a result of rotational / locomotion around these axes. The device has a feed device f...  
JP2001513028A
(57) [Summary] Hydraulic cylinder-piston units (7, 8) for adjusting the position of at least one working roller (7, 8) with respect to the linear axis (L) in machines generally described for straightening pipes and rods. 25). Convenientl...  
JP2001212618A
To provide a core rod capable of finishing an internal diameter face of an oil impregnated sintered bearing with an appropriate amount of pore with easy, inexpensive and good measurement accuracy to obtain the oil impregnated sintered be...  
JP2001212617A
To provide a method of easily manufacturing an aluminium product having a uniform section whose measurement accuracy is generated.The method of manufacturing the aluminium product having a uniform section is characterized to have a die-c...  
JP2001205335A
To provide a portable bending correction machine capable of easily correcting bending of a copper tube in a piping laying site. Plural correcting rollers 62 are journaled by a frame on one straight line respectively apart each other and ...  
JP3191005B2
To correct a distorted lead rapidly and with high precision into a natural and correct state, by specifying a circle locus for correcting a lead as a correction circle locus, and rotating the lead plural times without twisting while the ...  
JP3183083B2
PURPOSE: To provide a cut tee manufacturing equipment with which the straightness of the cut tee is ensured, the man-hour and manufacturing term at the time of manufacture are shortened and the cut tee is manufactured by cutting the web ...  
JP2001179340A
To provide a method for correcting tubes accurately and efficiently without considering any influences caused by rolling wear of a corrector. A tube corrector with roller system is provided with rollers which have an opening mold formed ...  
JP3183077B2
PURPOSE: To provide a method and device for manufacturing a cut T shape steel formed by cutting the web of a H shape steel with high efficiency, by securing the straightness of the cut T shape steel after cutting, and reducing the man-ho...  
JP3179348B2
To provide a strain correcting device with which the strain in a rear fork of a motor-cycle, for example, is accurately corrected and surely corrected by everybody without requiring skillfulness. The amount of strain of the inside width ...  
JP3175918B2
To stably provide high collapse strength by computing initial cooling temp. so that the inside circumferential residual compressive stress of a steel pipe, resultant from warm straightening, becomes equal to residual tensile stress at wa...  
JP2001150029A
To provide a device for reforming shaft bend that works with the high efficiency resulting from less frequent reforming and not causing any local bends, and that also leaves no flaws on the work shaft surface.The acute-angled parts of th...  
JP3172540B2  
JP3172435B2
To efficiently straighten a defective squareness and an umbrella-shaped bent with enough straightening capacity. This device has total four sets of lift-up units 8 composed by making mutual corresponding parts to each end part of upper a...  
JP3170781B2
PURPOSE: To stably sinter without damaging a die and obtain the stable dimension after sintered. CONSTITUTION: In correcting of Al base sintered machine part of a real density ratio after sintering being 80 to 100%, plural numbers of rec...  
JP2001506544A
A method for automatic conducting of a straightening process for an object to be straightened, such as sheet metal, strips, sections, pipes, and in particular for wire-like or multiwire-like objects that are to be straightened, in a stra...  
JP2001137944A
To provide a straightening roll having an uniform feed speed in simultaneously straightening plural angle steels. Relating to a pair of straightening rolls having a ruggedness part conformable with a shape of an angle steel to be straigh...  
JP2001129624A
To provide a row steel alignment device for aligning irregularly aligned angles A to specified initial pitches. This device is furnished with a roller equipment to press, by hold-down rollers, a plurality of the angles A carried-in to a ...  
JP3164885B2
PURPOSE: To improve the work efficiency by executing parallel a retrieval of a die to be changed and installing in advance its die in a preparation side turret, when a die change code is detected in the course of executing an NC program....  
JP2001121211A
To provide a pinch roller to uniform the sandwiching state and the carrying speed of each structural steel in the case of carrying a plurality of structural steels at a time. In the pinch roller for carrying a plurality of structural ste...  

Matches 951 - 1,000 out of 3,564