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JP62144818 |
PURPOSE: To improve the quality of a metal tube by heating a tube end up to a temp. at which the elastic modulus of the tube drops, expanding the tube end from its inner surface side, and cooling the tube end to correct the end to have a...
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JP62137122 |
PURPOSE: To squash the inner face bead and to straighten the bead shape without stopping the pipe manufacturing line by providing the roll for straightening freely rotatably on the center axis at right angles with the longitudinal direct...
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JP62127124 |
PURPOSE: To improve the correcting accuracy by setting a correcting roller which revolves and rotates in the opposite direction to the rotating direction of a gear and bringing the roller into rotating contact with the tooth crest of the...
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JP62127123 |
PURPOSE: To prevent noise from being made and to reduce damage to products by installing walls provided with restricting claws at the lower part of the wall to face each other and moving the two walls to close to each other to restrict a...
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JP62124027 |
PURPOSE: To perform the deformation removing work of a shape steel safely and with good efficiency by fixing plural places of the bottom part flange and web of a shape steel by pinching them by the fixing device of the right and left cyl...
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JP62114728 |
PURPOSE: To improve the accuracy in straightening by providing a stress detecting means and press distance calculating means and by pressing a sample with a press member by the calculated press distance. CONSTITUTION: The 1st proximity s...
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JP62097716 |
PURPOSE: To straighten a bend without giving adverse effect on the material and complete roundness state by giving the load in the bending direction and reverse direction to the expanding part while under plastic deformation. CONSTITUTIO...
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JP62089529 |
PURPOSE: To straighten the material to be straightened with high accuracy by measuring the vertical distance between a detector and two points at the roller top end part respectively, by calculating the deflecting quantity of the roll fr...
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JP62084829 |
PURPOSE: To enable an automatic straightening and to increase the quality by detecting the bend and deflection of a welding H shape steel automatically and by correcting the straightener automatically with its feedback. CONSTITUTION: The...
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JP62084830 |
PURPOSE: To obtain the electric resistance welded steel pipe with good stiffness at the weld zone and excellent dimensional accuracy by performing the shape straightening which takes the bend formation mainly with the temp. of the seam p...
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JP62077120 |
PURPOSE: To increase the straightening accuracy and to simplify the work by providing the sub-roll frame supported elastically on a substrate, and by fitting a block to the piston rod of a hydraulic cylinder, further by arranging a rolle...
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JP62072432 |
PURPOSE: To increase the productivity and the quality of a product by irradiat ing laser beam at least on one part of heat treating item and by removing the thermal deflection generated in heat treatment. CONSTITUTION: The laser beam gen...
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JP62070519 |
PURPOSE: To obtain a large working degree with a simple constitution, by applying torsion working to plastic working to an austenitized bar steel stock in working heat treatment. CONSTITUTION: Upper and lower end parts of the bar shaped ...
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JP62068624 |
PURPOSE: To positively straighten flanges by contacting convex and concave outer and inner rollers on the outside and inside surfaces of the flanges respectively in the axial direction and alternating the bending direction by a combinati...
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JP62064422 |
PURPOSE: To improve the straightening accuracy, and to hold the wear resistance by giving a pre-distortion of a prescribed quantity through an external force to a rail, and subsequently, heating a prescribed range of the rail to a specif...
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JP62045424 |
PURPOSE: To increase the accuracy in a corrected formation by providing the measuring instrument to detect the dislocation of the item to be corrected and by arranging two sets of pressure correcting means as well and by controlling by s...
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JP62040946 |
PURPOSE: To obtain an economical titled punch which can replace easily a head part, by constituting it so that a projecting part which has been provided on a base end side of the head part whose tip part is a projecting shape is interloc...
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JP62040933 |
PURPOSE: To straighten an end bend of a long-sized tube by moving a pressure ram and a pressure receiving base and pressing and straightening the tube, without moving the long-sized pipe in the axial direction, at a straightening positio...
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JP62028038 |
PURPOSE: To perform the deformation correction of an external tooth and the deformation straightening of the inner spline simultaneously by rapidly cooling simultaneously with the correction of the external tooth by a rolling gear by eng...
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JP62024823 |
PURPOSE: To enlarge automatization of roll rearranging operation, to save labor and to improve safety by providing an inner stand turnover device at the position of a rail under a crane. CONSTITUTION: An inner stand 5 on a line is run al...
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JP62024822 |
PURPOSE: To enlarge automatization of roll rearranging operation, to save labor and to improve safety by setting an inner stand on a travelling carriage to be turned over freely by a turnover driving device. CONSTITUTION: A travelling ca...
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JP62024821 |
PURPOSE: To obtain stably a straight steel pipe by equipping specific numbers of turks heads at an outlet side of a sizing mill on a production line of an electric welded steel pipe and by dividing into a sizing function and a repeated b...
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JP62021425 |
PURPOSE: To straighten a bend by on-line, and to improve the productivity with a high yield by specifying a ratio of an inter-stand distance and the maximum outside diameter which can make a tube and placing plural stages of stands, befo...
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JP62016817 |
PURPOSE: To straighten effectively a long-sized tube and bar stock by clamping and rotating one end of a long-sized stock to be straightened, which has been inserted and held by a position fixing roller and a straightening variable offse...
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JP61296925 |
PURPOSE: To form a cylinder in precise cylindrical shape by shrinking the cylindrical body obtd. by bending a short sheet and by expanding in cylindrical shape the cylindrical body after bending both joining parts to the inner side and w...
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JP61289917 |
PURPOSE: To improve working efficiency of rearrangement by providing a roll truck supporting a roll, arranging a supporting clamping device for fixing a chock of one side, then making a nut attachable and detachable by driving a motor. C...
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JP61289919 |
PURPOSE: To improve efficiency and safety of operation by mounting a squeeze roll stand on one side of a shifting truck to shift, taking off an upper frame by a workshop crane, then rearranging roll by an exclusive handling crane. CONSTI...
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JP61289918 |
PURPOSE: To improve efficiency and safety of rearranging operation, by providing a rearranging device for upper and lower roll respectively, performing the detaching of roll on horizontal condition, and then, by carrying out and fixing u...
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JP61286025 |
PURPOSE: To improve the yield and the quality of a product by using a roll straightening machine of an inclined and opposed type, also giving an offset to a tube, and also executing the straightening by a prescribed pressure load which g...
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JP61283419 |
PURPOSE: To smooth the bead part of a weld pipe and to form the good welded pipe having no toe lines by rolling the projecting part of the beads of the welded pipe in the peripheral direction of the pipe between the plug in the pipe and ...
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JP61283420 |
PURPOSE: To automatically and continuously correct the bend in the longitudinal direction of a long-sized metallic material at a high productivity by measuring said bend and pressing pressurizing members thereto to roll the material in a...
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JP61276718 |
PURPOSE: To reduce variance of yield strengths by obtaining a relation between the ratio of the yield strength before straightening to the yield strength after straightening and the ratio of the crush quantity at the elastic limit to the...
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JP61255720 |
PURPOSE: To simplify a correcting device by setting a measuring means of run-out quantity at a correcting point and pressing means giving corrective bending deformation at the correcting point, and repeating the corrective bending which ...
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JP61253123 |
PURPOSE: To straighten a plate material having different thicknesses succeedingly in one pass operation and to improve operating efficiency by adjusting the position of an upper roll frame to keep a prescribed distance between straighten...
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JP61253124 |
PURPOSE: To remove strains in an armature automatically and positively by giving both side surfaces of the armature whose both ends are supported by a positioning jig an alternating vibration by a vibrator from both side directions of th...
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JP61249627 |
PURPOSE: To make easy the multiseam automatic welding by robot by inserting an expandable bag into the plural adjacent thin cylindrical material on the turning roll to be butt welded, by press-fitting a fluid body into the bag and by cor...
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JP61238434 |
PURPOSE: To prevent a decrease of the product yield of roll down slab due to fluctuations of a width when it is rolled down, by providing top and bottom anvils with steps respectively to control elongations of the width direction when a ...
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JP61229419 |
PURPOSE: To increase joining strength and to reduce costs by expanding a pipe with a smaller diameter by press fitting of a tapered jig into an end of the pipe and welding the pipe. CONSTITUTION: Pipes 6 and 6' having a different inside ...
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JP61227126 |
PURPOSE: To form a pipe having high accuracy with low residual stress by forming the pipe to a prescribed size by bulging in a metallic mold then exerting axial compressive load thereto in the state of exerting a low pressure to the pipe...
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JP61206523 |
PURPOSE: To increase working efficiency by setting a rectifying jig which holds an end of a strip work freely rotatably and a drive controller which stores a rotated angle of the jig. CONSTITUTION: A fixing side work holder 3 and a rotat...
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JP61199519 |
PURPOSE: To enlarge the load measuring range of a bar-stock bending device by providing a load converting mechanism, made to convert an excessive load not less than a prescribed value to a large-load load cell when the load is loaded on ...
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JP61199518 |
PURPOSE: To form a bar stock highly precisely by performing the first bending in accordance with a spring-back factor calculated previously, and correcting the factor by sampling the relation of load-displacement of the stock in a load r...
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JP61199517 |
PURPOSE: To simplify the forming work of a bar stock by setting bending quantities in sequence by using a spring-back line and a load-displacement curve and controlling the bending quantities of the stock by applying pressing force in se...
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JP61193722 |
PURPOSE: To collect an adhered oil in one place without its scattering by detecting the tip of the straightening material delivered from a straightener with oils and by squeezing the oil with pinching by a wiping body the straightening m...
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JP61189820 |
PURPOSE: To provide an easy way of correcting pipes with a high accuracy by detecting the center position, configuration, bend, etc., bringing the bent part of a pipe in position on a press and correcting it. CONSTITUTION: After a pipe 1...
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JP61186123 |
PURPOSE: To straighten the stress of a shaped steel material, etc., at high efficiency and with high accuracy, by measuring the deformed quantity by means of the 1st, 2nd, and 3rd stress measuring devices which measure the straightening ...
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JP61182823 |
PURPOSE: To reduce equipment cost and to shorten roll changing time by constituting a roll shaft with eccentric shaft and the shaft main body and by fitting forming roll and spacer to the shaft main body of the roll shaft. CONSTITUTION: ...
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JP61182822 |
PURPOSE: To increase the accuracy and efficiency in straightening by providing the rotary chuck movable in vertical direction to the shaft of bar stock and by arranging the clamp mechanism to reciprocally move in the axial direction. CON...
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JP61182514 |
PURPOSE: To automate the measurement of a bent variable of a rod material and using the measuring instrument also for a bent correcting process in a production process by forming a carrying means, reference surface formation supporting b...
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JP61176421 |
PURPOSE: To increase the efficiency in an overhaul work and to stabilize a quality by performing automatically and mechanically without any manual help the deflection straightening and discrimination of a plate shaped brake parts. CONSTI...
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