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JP08141642 |
PURPOSE: To easily re-arrange a roller in a center impeller type roller strightener and to provide a compact roller rearranging method and the device therefor. CONSTITUTION: A roller shaft 33 to support a straightening roller is changed ...
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JP2519864 |
PURPOSE: To make it possible to insert a mandrel into a channel without damaging the damage of the inside surface of a member by elastically sizing the channel by the mandrel until a geometrical shape regulated to be ready for thermal si...
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JP08117905 |
PURPOSE: To improve working efficiency and appearance by simply repairing a deformation due to a recessed part formed in the periphery of a barrelhead, for example, of a draft beer barrel, close to the original shape and without the need...
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JP08117855 |
PURPOSE: To correct the bore at the end of a steel pipe with good working efficiency and accuracy with a simple equipment by subjecting the pipe end to diametral reducing, then expanding only the diametrally reduced part in cold by as mu...
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JP08117856 |
PURPOSE: To correct the bore at the end of a steel pipe with good working efficiency and accuracy with simple equipment by subjecting the pipe end to diametral expanding at cold, then diametrally reducing only the expanded part by as muc...
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JP08117857 |
PURPOSE: To obtain elaborate products free from thick and thin parts, wrinkles, cracks and deformations in the material by using forming dies and shaping core bars designed to open curvature parts and to be made movable in the elongating...
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JP08112619 |
PURPOSE: To provide a task head roll stand which can change a face plate automatically. CONSTITUTION: In a task head roll stand 20 where a face plate 15 provided with a prescribed number of straightening roll 12, bearing boxes 13 for the...
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JP08112618 |
PURPOSE: To finish change in roll interval in a short time, to make the mechanism simple and to inexpensively complete the equipment without requiring a expensive hydraulic cylinder. CONSTITUTION: Parts marked with hatching are rotated a...
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JP08100809 |
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...
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JP08099122 |
PURPOSE: To variably support the free end of a supporting shaft, i.e., the end of an operation side of a roller straightening machine by simple means. CONSTITUTION: The roller straightening machine for straightening the formed rolled mat...
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JP08099143 |
PURPOSE: To increase the thickness of a rod material without causing bending in the rod material. CONSTITUTION: In this method by which a heating part 5 is formed by locally heating the rod material 1 to be increased in the thickness by ...
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JP08090127 |
PURPOSE: To provide a wire straightening apparatus which wears less and has a long life. CONSTITUTION: Wire 11 is straightened when the wire is pulled through upstream side, intermediate and downstream side straightening wires 15 and 16 ...
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JP08090074 |
PURPOSE: To manufacture a titanium and titanium alloy bar at a low cost with improved total yield by suppressing the generation of cracks and flaws to obtain a product of stable dimensional precision in the process to straighten a titani...
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JP08085806 |
PURPOSE: To prevent the breakage of a work at the time of taking out the work while securing the dimensional precision of the work, to make a die for straightening compact and to enable the use of lower punches even to an originally stra...
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JP2506604 |
PURPOSE: To control tensile strength and elongation by performing straightening for working simultaneously friction and bending, controlling generating friction heat, and also, giving torsion to a steel tube. CONSTITUTION: A drawn coil-l...
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JP08071685 |
PURPOSE: To suppress the dispersion of a strained amount of heat processing after heat processing and to obtain a cold forging spline with the high precision satisfying to the required quality of an article by cold-coining the spline par...
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JP08074708 |
PURPOSE: To improve sealing property when the valve body of the nozzle of a fuel injection valve is seated on a valve seat surface. CONSTITUTION: Supersonic wave vibration is applied on a super hard ball 12, and the super hard ball 12 is...
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JP08071651 |
PURPOSE: To facilitate the attachment/detachment of a segment by fitting a segment cover on the surface of the segment to be brought into close contact with the inner surface of a tube, and on both sides of the segment. CONSTITUTION: The...
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JP08071677 |
PURPOSE: To obtain an expanding apparatus and method for determining the dimensions of drop-center wheel rims. CONSTITUTION: The rim is expanded by using a wedge assembly 60 fixed at one end of a headstock 44 of a rim expanding fixture 1...
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JP2501983 |
PURPOSE: To provide a bending straightening method capable of sufficiently straightening the bending even for a thin wall drawn tube without deforming the tube. CONSTITUTION: A core 6 is inserted into the inside hollow 1a of the drawn tu...
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JP08066725 |
PURPOSE: To enable correction of an H-beam by providing such device for guiding a camber member to restrain the flange on the entrance side of the H-beam and thereby matching the center of the flange with that of a roll for correcting th...
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JP08066716 |
To supply two or more wire rods or round bars of iron or ferrous alloy to a construction machine of bending/forming machine and to compensate elongation of two or more rods or round bars. This device is constituted so that a pair of oppo...
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JP08057534 |
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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JP08057540 |
PURPOSE: To enable continuous press working on the end part of a special shaped product without set-up change of a metallic mold by moving a movable mold with its split face held horizontally and providing a fixed mold with a split face ...
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JP08047722 |
PURPOSE: To provide method and device for straightening the bend of a steel pipe, by which the uneven wear of a specific roll is prevented. CONSTITUTION: In a steel pipe straightening machine on which several rolls 1 with an approximate ...
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JP08033920 |
PURPOSE: To prevent local impression from being generated and to reduce machining margin in a finish process after straightening, when a bend of a round- bar shaped work is straightened by means of a rolling die for straightening. CONSTI...
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JP08024952 |
PURPOSE: To straighten the front and the rear end parts of a material which has been difficult to straighten and to improve the productivity and the quality of a product by using a oinch roll type roller straightening machine. CONSTITUTI...
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JP08024953 |
PURPOSE: To enable the rolling reduction straightening of a flange in a wide flange shape steel and to obtain the good shape at the edge part of the flange. CONSTITUTION: The shape of the flange edge part 21 of the wide flange shape stee...
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JP08010850 |
PURPOSE: To provide a straightening method for metallic products capable of easily removing the bends of the bar-shaped metallic products. CONSTITUTION: The first end W1 of a bar-shaped rod W is fixed and held to and by a chucking device...
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JP07328722 |
PURPOSE: To complete the remedying operation of a bar material at a time as much as possible. CONSTITUTION: It is necessary to previously measure the displacement quantity of a jth place when displacing an ith place by Hi, and to find fa...
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JP07328757 |
PURPOSE: To contrive the improvement of working efficiency, the reduction of equipment cost, the stabilization of quality and the improvement of working environment by using a die for trimming press and the mechanism for executing punchi...
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JP07328720 |
PURPOSE: To perform remedying processing with high efficiency by arranging plural rotary remedying machines in parallel on the downstream side of a VH remedying machine. CONSTITUTION: In a refining line 30, the coarse remedying line 33 o...
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JP07328721 |
PURPOSE: To replace a drawing down roll in a short time, and to precisely remedy it. CONSTITUTION: A roll supporting frame 2 with plural roll shafts 3A and 3B on which drawing down rolls R are mounted, is arranged on the left side part o...
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JP07323333 |
PURPOSE: To manufacture a resistance welded tube free from buckling by heating the region where the buckled part generated in the vicinity of the edge is contained to the temperature immediately above the AC3 transformation point, and im...
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JP07314038 |
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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JP07315025 |
PURPOSE: To provide the arm for suspension and its manufacture where the arm for suspension is formed out of pipe material into a hollow structure for lightening its weight, and it is prevented from being degraded in strength. CONSTITUTI...
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JP07308715 |
PURPOSE: To efficiently correct an ellipse which is generated at the spigot of a tube by a pressurizing force. CONSTITUTION: Both sides in the lower part of the spigots 13 formed in the end parts in the horizontal direction of the tube 1...
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JP07308716 |
PURPOSE: To efficiently correct an ellipse generated at the insertion port of a tube through rolling pressure. CONSTITUTION: Both sides of the lower part of an insertion port 13 formed at the tip part of a tube 11 in the horizontal direc...
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JP07303919 |
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 ...
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JP07303921 |
PURPOSE: To enable even a large H-shape steel with less web thickness to be straightened by arranging zigzag on both sides of the H-shape steel a plural number of rings that come into loaded contact with the flange end face of the steel,...
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JP07306705 |
PURPOSE: To provide the teaching device for the robot of the bending machine which automatically generates a robot operation program only by performing operation for inputting coordinate data and then teaches the robot. CONSTITUTION: The...
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JP07303922 |
PURPOSE: To improve maintenance workability by moving one straightener roll close to or away from the other straightener roll, adjusting an angle against a pass line through the horizontal rotation of one straightener roll and thereby si...
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JP07290170 |
PURPOSE: To provide a head for a mechanical pipe expander capable of effectively to correcting a large longitudinal ellipse before expansion and ensuring roundness after expansion even in a pipe of an intermediate size in the manufacture...
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JP07284853 |
PURPOSE: To reduce the number of restraightening by measuring straightness of a tube after straightening, calculating errors in straightening so as to determine a correcting load, adding/subtracting the correcting load to/from a referenc...
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JP07279069 |
PURPOSE: To obtain a reinforcing material for a tire of a vehicle, having a weight reduced as far as possible and, nevertheless, capable of achieving the adequate improvement in the physical properties of the vehicle tire. CONSTITUTION: ...
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JP07275936 |
PURPOSE: To reduce friction between a roll and a metallic bar, to decrease roll wear, to eliminate burning of foreign matters and to attain the long life of a roll by bringing a liquid penetrating material into contact with a leveler rol...
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JP07265954 |
PURPOSE: To provide a device for straightening material to straighten a long size material with the minimum number of times of straightening in a short time and with high precision. CONSTITUTION: In a device for straightening a long size...
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JP07265975 |
PURPOSE: To prevent a tube wall from being held between or being damaged when the end part of a tube is deformed by providing a guide with a circular part and providing one end of the guide and a slide with a conical surface. CONSTITUTIO...
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JP07265953 |
PURPOSE: To effectively and efficiently correct the position of a guide by measuring the distance from the reference position to a guide by a non-contact type displacement gage provided on the inlet or outlet side of a straightening roll...
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JP07246425 |
PURPOSE: To easily and inexpensively manufacture a tube part with a branch part with satisfactory roundness. CONSTITUTION: In a method for remedying the branch part 2 of a tube 1 formed by burring to complete roundness by plural spinning...
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