| Document |
Document Title |
|
JP3054293B2 |
|
|
JP3053534B2 |
PURPOSE: To enable automatic change of an upper roll and to reduce time for changing the upper roll by aligning the clamp member of a clamp means with the clamp hole of a small face plate, inserting the clamp member into that hole with t...
|
|
JP2000158193A |
To manufacture high quality electric seam pipes by preventing cooling irregularity of a pipe to be heated along with elimination of a welding bead, and also preventing the bead chips from following the pipe even at a high line speed.This...
|
|
JP3052555B2 |
PURPOSE: To manufacture the electro-resistance-welded tube of small diameter without deformation or wrinkles by making the size of max. diameter and the approach angle of a pressurizing roll within a range of value obtd. by multiplying t...
|
|
JP3052547B2 |
PURPOSE: To improve heating electricity efficiency and to manufacture even a small size tube by arranging an induction coil at the position close to a couple of pressure rollers. CONSTITUTION: Tube raw material 1 is formed into a tubular...
|
|
JP3044247B2 |
PURPOSE: To reduce roll changing time, to secure safety of operator and to improve labor time by providing an upper roll support means by which a support member of upper roll shaft box is taken in/out into an inner stand. CONSTITUTION: I...
|
|
JP2000129921A |
To provide a rod-like body joining method using high frequency induction heating capable of dispensing with a water-cooled cooling device for cooling a heating coil causing increase in size of a device, enlarging the working range and ea...
|
|
JP2000117459A |
To provide a resistance welded tube manufacturing device in which the voltage generated between terminals of a work coil is dropped even when a large high frequency power is applied to the work coil by reducing the reactance between the ...
|
|
JP2000119812A |
To provide a resistance welded tube excellent in workability and suitably used as resistance welded tubes for automobile and machine structural uses requiring excellent workability, and its manufacturing method.The resistance welded tube...
|
|
JP2000116149A |
To obtain a high frequency power supply in which a control circuit can be simplified by a method, wherein a reserve inverter is not required in the case of the failure of an inverter, an operation which ensures a prescribed output mismat...
|
|
JP3030597B2 |
PURPOSE: To reduce deviation in thickness of a welded tube by grinding welding bead and performing drawing so that the average thickness of the bead part against that of other parts is in a specific ratio. CONSTITUTION: A slit-shaped met...
|
|
JP3030602B2 |
PURPOSE: To provide a producing method for a steel tube for preventing a paper from being stuck on an electric pole or a lighting pole, etc., and further a resistance welded tube with ribs on the external face used in the field of specta...
|
|
JP2000094155A |
To provide a diffusion bonding method of a metallic tube and a deciding method of a heating width in diffusion bonding of the metallic tube which are capable of dissolving a temperature difference between the surface and the internal par...
|
|
JP3020635B2 |
|
|
JP2000061654A |
To provide a vertical diffusion welding equipment that is simple in the entire structure and that is easy in the adjustment of a horizontal position and an inclination between a metallic tube positioned in the lower part and one supplied...
|
|
JP2000052058A |
To provide a high frequency welding device which can carry out high frequency welding of high production efficiency to all sizes of manufactured pipes without changing a circuit inside of an oscillating circuit. This high frequency weldi...
|
|
JP2000052059A |
To improve welding efficiency and elongate the life by laminating a silicon steel plate which contains a given component of Si, and has a given thickness and an insulation film of a given thickness, and storing it in a insulating case at...
|
|
JP2000051931A |
To provide the production method of the electric resistance welded tube and the welding roll for producing the resistance welded tube capable of suppressing generation of a spatter of an inner face side of a welded joint part of the elec...
|
|
JP2000042626A |
To continuously manufacture a metallic tube of high quality provided with a prescribed tube shape. This device is composed of a storing and feeding device 1 which continuously feeds stored band-like thin metallic plates M, an embossing d...
|
|
JP2000015349A |
To obtain an electric resistance welded tube easily formed at the time of working with a hydro-forming method by forming while holding the elastic range of a specific value or lower of a strain quantity at the forming stage for producing...
|
|
JP2994202B2 |
PURPOSE: To manufacture a steel tube having high roundness over the entire length by dividing sizer rolls of the final stand into four in the circumferential direction of pipe and executing drawing by changing the ratio of the base diame...
|
|
JP2989569B2 |
Electro-unite tubes having different plate thicknesses or different diameters are breakdown-formed without changing the upper rolls and the lower rolls of the breakdown pass rolls each time. Each of breakdown pass rolls 12 includes an up...
|
|
JP2984450B2 |
PURPOSE: To provide a joining method which can obtain stable joining strength in a high speed joining method for rough rolled stock in a continuous hot rolling process and correspond quickly on materials to be joined various in plate wid...
|
|
JPH11320121A |
To provide a welding device to be operated with a high frequency induction heating wherein a lowering of temperature due to blasting of an inert gas is prevented at a part to be welded and quality of welding/joining part is not deteriora...
|
|
JPH11319935A |
To improve a dimensional accuracy while using a plug having a tapered angle smaller than that of a die, by pushing a tube into a rotary forging machine from the rearward of the machine with a specified force, and arranging an extracting ...
|
|
JPH11320120A |
To provide a joining method by which a joining work efficiency is improved and a sufficient strength and tenacity is given to a joining part at a local joining of a steel pipe. Steel pipes 1a, 1b having a vertical end surface are butted ...
|
|
JPH11320186A |
To accurately detect cutting failure of an inner bead of a small- diameter electric seam pipe by respectively distinguishing cutting vibration of good cutting, that of joint welding part cutting, and that of cutting failure, and detectin...
|
|
JPH11314114A |
To accurately detect the position of the seam part even it is an electric resistance welded tube the difference between the luminance signals of the seam part and the part other than the seam part of which is small. In this device, the s...
|
|
JP2978041B2 |
PURPOSE: To stably heat and join slabs by installing plural units of inductors for generating magnetic fields for heating slab ends in a width direction and unifying the phases of the currents to be impressed to the respective inductors....
|
|
JP2978032B2 |
PURPOSE: To stably attain right and left uniform joining by melting in a short time by mutually butting the end parts of a preceding and succeeding slabs only in both end parts in width, impressing alternating field in the center gap par...
|
|
JP2975147B2 |
|
|
JPH11291064A |
To provide a high frequency induction heating type pressure-welding apparatus capable of butt-welding works to be welded such as pipe material with diffusion joining without being melted by using the high frequency induction heating meth...
|
|
JPH11290913A |
To provide a pad changing device of continuous rolling equipment for efficiently changing the pads of a joining device. In a handling device of the pad 11 of the continuous rolling equipment with which the pads 11 are detached from a sup...
|
|
JPH11285856A |
To provide a manufacturing method of an electric resistance welded tube having a small diameter and a thick wall which have the excellent quality of a weld zone and in which the burning of an impedor and the blow-back of impedor cooling ...
|
|
JPH11277251A |
To provide an impeder for manufacturing a welded tube capable of improving the service life of the impeder and productivity of an welded tube more than the conventional products. In an impeder consisting of a laminated silicon steel plat...
|
|
JPH11277151A |
To easily, rapidly and moreover safely execute the work for adjusting a center height of an inner stand accompanied with the change in the tubular diameter of an electric resistance welded tube. In this forming machine, a group roll stru...
|
|
JPH11256356A |
To distribute plural kinds of metals in an alloy without causing any segregatation regardlessly of sp. gr. by abutting the metallic powder having different kind of the constituting metals on a metallic base material, melt- sticking the p...
|
|
JP2952187B2 |
To provide an electric resistance welded tube inspection device which can detect even a defect part of an electric resistance welded tube looked superficially normally welded, and to provide an electric resistance welded tube producing e...
|
|
JPH11244941A |
To provide an electric resistance welded tube capable of easily specifying a seamed part. Plural lines 31, 32 parallel to the axial direction of a tube are marked to a prescribed position θ1 in the circumferential direction of the tube ...
|
|
JP2943506B2 |
PURPOSE: To improve the strength and delayed fracture resistance of a steel tube and utilizing it as an impact bar of a door for a vehicle or the like by manufacturing a tube with a steel in which C, P, S, Mn and Mo are specified and reg...
|
|
JPH11226752A |
To provide a method for joining metallic materials such that an insert material interposed between the joining faces of the materials is prevented from covering the joining end of the materials at the time of joining. The method contains...
|
|
JP2930249B2 |
|
|
JP2926974B2 |
|
|
JPH11197851A |
To simply weld a bolt and screw bar everywhere to the tip part of the bar shaped body. By butting the outside screw body 2 on the tip part of the bar shaped body 1, by covering the butted part by a cylindrical mould 3, and by arranging t...
|
|
JPH11197850A |
To prevent the hardening of a weld zone without using a heat treatment equipment after welding a seam annealer, etc. When heating a steel strip which is a material to be welded, by using a welding power supply device by which 2.5 kV.A/(c...
|
|
JP2924675B2 |
|
|
JP2924716B2 |
|
|
JPH11194103A |
To provide a method and an apparatus, for the display of a foreign body, in which the detection of the foreign body existing at the inside of an electric resistance welded pipe flowing into one after another and the existence of the fore...
|
|
JPH11507882A |
A handheld power control device adapted to be connected to an external power supply for controlling the electric power applied to a heating coil positioned in a fusible area of a thermoplastic pipe joint for thermally fusing the joint. A...
|
|
JP2919320B2 |
|
