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JP4382512B2 |
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JP4383067B2 |
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JP2009285710A |
To solve a problem that a conventional technique has difficulty to obtain an electric resistance welded tube excellent both in out-of-roundness and buckling resistance.In the manufacturing method of the electric resistance welded tube, r...
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JP2009285684A |
To provide a slip detection method for a roller straightener by which the surface of a material can be prevented from being changed in quality by a slip between straightening rollers and the material during straightening materials of rou...
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JP2009285711A |
To solve a problem that a conventional technique has difficulty to obtain an electric resistance welded tube excellent both in out-of-roundness and buckling resistance.In the manufacturing method of an electric resistance welded tube, ro...
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JP2009285705A |
To provide a manufacturing method of an electric resistance welded tube excellent in buckling resistance property which hardly causes buckling due to earthquake or frozen soil after being laid as a line pipe.In the manufacturing method o...
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JP2009285708A |
To solve a problem of not sufficiently improving buckling resistance property of an electric resistance welded tube by conventional technology.In the manufacturing method of the electric resistance welded tube, a steel strip is roll form...
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JP4378808B2 |
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JP4382385B2 |
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JP4376602B2 |
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JP4376542B2 |
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JP4370114B2 |
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JP4370628B2 |
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JP4360721B2 |
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JP4349710B2 |
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JP4344347B2 |
A roll straightener which is capable of being switched between a zigzag type and an opposed type is disclosed. The roll straightener has an odd-number of pairs of upper and lower rolls. A group of the lower rolls including the second low...
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JP4318986B2 |
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JP2009154191A |
To provide a method for solving the problem that the shaft part which is a thrust part in the shaft end part of a roller is damaged because the roller metal is worn out and the center position which is the axial center of the roller is s...
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JP2009154190A |
To provide a device for protecting a polishing plate holder of a polishing plate having a dovetail groove even when overload is applied to the polishing plate for restraining a material to be straightened during straightening work in a r...
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JP4297354B2 |
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JP2009142877A |
To provide a tube end correcting tool with which a tube end is corrected into a complete circle by smaller force than that of a conventional tool, and the chips are prevented from intruding into piping when performing chamfering at the s...
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JP2009107023A |
To provide a straightening apparatus with which accurate straightening can be performed by raising the rigidity of the main body of a straightening machine.A conveying truck 70 is arranged freely movably in a direction crossing the pass ...
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JP2009101409A |
To provide a method of manufacturing a cylindrically extruded material by which the cylindrically extruded material excellent in the accuracy of an inside diameter is manufactured at high productivity.This manufacturing method is provide...
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JPWO2007052361A1 |
The straightening roll can be easily adjusted, and the setup time and cycle time can be shortened. The fixed side straightening roll 11 and the movable side straightening roll 13 are arranged in parallel on the apparatus main body 10. Th...
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JP2009090373A |
To provide a straightening machine which can achieve high-precision straightening by improving rigidity of the machine without requiring enlargement in size thereof.Main body 11 of the straightening machine 10 comprises a pair of frame m...
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JP2009079495A |
To achieve deformation correction with sufficient precision, and to reduce the occurrence of a defect which can happen during correction of the deformation.A deformation correcting tool 3 includes a cone part 4 and a cylindrical part 5. ...
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JP4255545B2 |
The roll correction machine, to correct rolled stock (1), has a run-in for the rolled stock and several bending rolls. It has at least one adjustable running-out roll (5), controlled by a setting element (13), to guide the rolled stock. ...
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JP4251896B2 |
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JP2009513352A |
The invention relates to a method for leveling profiles ( 5 ). When the hot-rolled profiles are cooled off, they deform considerably. Therefore, the profiles are not leveled while they are hot but are first cooled off. The inventive meth...
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JP4236960B2 |
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JP4223140B2 |
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JP4217649B2 |
To provide equipment for producing continuously cast rods of aluminum alloy with which continuously cast rods of aluminum alloy excellent in quality are produced by efficiently peeling skin portions. The equipment is provided with a melt...
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JP4191922B2 |
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JP2008284595A |
To correct a twisted flat bar having nonuniform pitch into accurate pitch since the twisted flat bar which is made by twisting a flat bar is different in dimension of every pitch when measuring the pitch accurately.A roller on which proj...
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JP3146642U |
To provide an apparatus capable of welding and removing seam scratches generated on the surface of a wire rod when the wire rod is formed by rolling or drawing. A plurality of rolling rolling rollers 29,31 which are rolled or drawn and a...
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JP2008229642A |
To provide a method for straightening a hat type steel sheet pile by which the change in the width of a material to be straightened in accordance with the alternation of rolling reduction can be suppressed without depending on shape adju...
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JP2008229667A |
To provide a thin-walled pipe forming device capable of easily obtaining roundness and cylindricity, and a thin-walled pipe forming method.The thin-walled pipe forming device for forming a thin-walled pipe 4 comprises a thin-walled pipe ...
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JP2008229657A |
To provide a method for straightening a U-shaped steel sheet pile, capable of properly straightening warpage of both the left and right joint parts 104 of a U-shaped steel sheet pile having arm parts formed between each joint part and fl...
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JP2008194744A |
To provide a method of straightening an electric resistance welded steel pipe by which the twist angle of a weld bead part is fallen in a prescribed range when performing rotating straightening by advancing the pipe while rotating it wit...
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JP4137359B2 |
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JP4132497B2 |
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JP4129410B2 |
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JP2008173643A |
To adjust the mechanical strength of a duplex stainless steel tube by a straightening machine.When straightening the duplex stainless steel tube with a multistage roll type tube straightening machine, A-value which is defined by followin...
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JP3142896U |
To provide a material straightening device capable of measuring the hardness of a coil material used in a straightening roller portion for straightening a coil material. This is a material straightening device A of a pressure forming mac...
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JP4107973B2 |
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JP4096840B2 |
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JP4083002B2 |
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JP4075478B2 |
An assembled camshaft (10) for engine includes: a cam lobe piece (12); and a hollow shaft member (11) having at least two shaft fixing surfaces (11A) formed by plasticity process on a portion of the hollow shaft member (11) corresponding...
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JP4074416B2 |
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JP4067768B2 |
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