| Document |
Document Title |
|
JPH08300164A |
PURPOSE: To improve productivity, to detect forming defects of tube stock and to simplify correction by providing a shield cover for covering only a local part between the welding equipment around the weld zone and a tube stock minimizin...
|
|
JPH08300172A |
PURPOSE: To obtain a highly efficient manufacture of a welded steel tube by welding with a laser beam, a high density energy beam, tilted in a specific angle range to the side where welding is completed and thereby preventing the generat...
|
|
JPH08281479A |
PURPOSE: To obtain a flux cored wire for welding which has high productivity without disconnection even if high-speed drawing is executed in the stage of a small diameter. CONSTITUTION: A flux composed of ferromagnetic raw material powde...
|
|
JP2547430B2 |
Structure for and a method of resistance welding using an induction coupled power source. The structure of the invention comprises an electric coil wrapped around a flux concentrating core in close proximity to members to be welded toget...
|
|
JP2546633B2 |
PURPOSE: To weld a material which may increase welding speed or may induce deterioration of welding quality under a sharp temperature gradient. CONSTITUTION: In welding edges 3.1, 3.2 of a sheet metal, edges to be welded of both sides ar...
|
|
JP2546070B2 |
An electric-resistance-welded steel pipe with high strength consists essentially of 0.05 to 0.30 wt.% C, 0.6 to 2.0 wt.% Mn, 0.03 to 0.70 wt.% Si, the balance Fe and inevitable impurities, and comprises a structure having a martensitic p...
|
|
JP2541396B2 |
PURPOSE: To directly photograph a joined part of a hot forming tube such as a weld tube, a forge-welded tube, etc., by a camera. CONSTITUTION: As for the welding monitor, in a tube manufacturing line 1 of a hot electro-resistance-welded ...
|
|
JP2540693B2 |
PURPOSE: To carry out stable power feeding by providing heat resistant and wear resistant double-layered insulating boards with a dovetail groove between right and left of both sides of a contact shoe to make these exchangeable for high ...
|
|
JP2540187B2 |
|
|
JP2540088B2 |
|
|
JP2512420Y2 |
|
|
JP2540087B2 |
|
|
JP2536301B2 |
|
|
JP2535600B2 |
|
|
JPH08238526A |
PURPOSE: To provide a small electric resistance welded steel tube having the excellent fatigue characteristics on the bending part by bending it to a prescribed bending radius of curvature while loading a stress less than the yield point...
|
|
JPH08238579A |
PURPOSE: To provide a process for producing an extremely thick and small- diameter electric resistance welded tube having good dimensional accuracy. CONSTITUTION: This process for producing the electric resistance welded tube by roll for...
|
|
JPH08230045A |
To provide an improved thermoplastic welding process forming a continuous or almost continuous fused part excellent in strength and having consistent quality over the whole of a joining line. An induction coil is passed over an interface...
|
|
JPH08229689A |
To make it possible to diminish the temperature gradient within the edges to be welded if a welding speed is the same, thereby making it possible to make the welding speed higher than heretofore or to weld such materials which lead to th...
|
|
JP2531816B2 |
|
|
JP2509827Y2 |
|
|
JP2528808B2 |
A continuous steel hot-rolling method and apparatus for successively bonding a plurality of steel pieces of a predetermined length and maintained at a high temperature so as to form a continuous train of the steel pieces for roll by a ro...
|
|
JP2529506B2 |
PURPOSE: To enable the position of a welded part of a welded tube with a different outer diameter to be detected highly accurately without adjusting the position of height of a device for detecting a mark for detecting the position of th...
|
|
JPH08215765A |
PURPOSE: To provide a method for forming a welded pipe which yields a product pipe having good dimensional accuracy, welding and surface quality by decreasing a spring back quantity and lessening fin pass forming load without impairing h...
|
|
JP2525695B2 |
|
|
JPH08206851A |
PURPOSE: To stabilize the welding quality of a welded tube by preventing oxidation of a welded part in an inside gas shielding method in a tube manufactured by the high frequency induction welding. CONSTITUTION: A tip part 11a of an iner...
|
|
JP2522295B2 |
|
|
JP2522465B2 |
|
|
JP2520547B2 |
PURPOSE: To eliminate the generation of flashing and improve the welding quality by providing a coil side press roll to push down the steel strip side coil edge and extend an angle shown by the formula on the position right before weldin...
|
|
JP2520245B2 |
|
|
JPH08192278A |
PURPOSE: To obtain an amorphous bulk body of high density and high strength by joining thin strips of amorphous alloy. CONSTITUTION: Thin strips of amorphous alloy are joined and made in a bulk body by applying a pressure of 30MPa or abo...
|
|
JPH08193960A |
PURPOSE: To reliably, speedily, and continuously detect the surface flaw of UO steel pipe welding part by obtaining a group of picture elements where the light intensity of each scanning line in a direction for crossing a light sectionin...
|
|
JPH08187580A |
PURPOSE: Not to be eroded as taking higher input voltage so as to increase welding speed and improve productivity by replacing part of a silicon steel sheet right under a work coil with a ferrite core. CONSTITUTION: An impeder 4A is cons...
|
|
JP2515470B2 |
PURPOSE: To eliminate the generation of flashing and improve the welding quality by pushing down the steel strip side coil edge, maintaining an angle shown by the formula above the specified angle and performing welding on the position r...
|
|
JP2515460B2 |
PURPOSE: To quickly and highly accurately control a butted shape by photographing a seam convergent position of a tube and detecting its butted shape. CONSTITUTION: The seam convergent positions 3, 3' of the roll formed tube are photogra...
|
|
JPH08174249A |
PURPOSE: To provide a producing method of a welded steel pipe, by which a good bead shape is obtd. without lowering the productivity and any welded defect. CONSTITUTION: A steel strip 1 continuously carried is formed as a cylindrical- st...
|
|
JPH08174080A |
PURPOSE: To manufacture a small diameter resistance welded tube which is used for a structural part in an automobile and machine and which is superior in fatigue characteristics in a bent part. CONSTITUTION: In a small diameter resistanc...
|
|
JP2510058B2 |
PURPOSE: To obviate a flashing phenomenon at the time of electric resistance weeding, and to decrease a welding defect by enlarging an apex angle by pushing up a coil edge of a spiral steel tube side. CONSTITUTION: When a distance betwee...
|
|
JPH08155656A |
PURPOSE: To produce the weld zone of excellent quality by uniformly heating the edge part of hoop rolled to cylindrical shape by high frequency induction. CONSTITUTION: A hoop 1 is continuously rolled to cylindrical shape and a pair of c...
|
|
JPH08155541A |
PURPOSE: To improve the yield at the time of producing a coil having a specific blank by mutually relative-shifting both divided coils in the longitudinal direction of the divided coils so as to form a line symmetry related to a matching...
|
|
JP2506471B2 |
|
|
JPH08150411A |
PURPOSE: To continuously stably manufacture welded wide flange shapes without stopping welding work. CONSTITUTION: Three coils of a coil C2 for the web and coils C1 C3 for upper and lower flanges are uncoiled and, after they are respecti...
|
|
JP2504056B2 |
|
|
JPH08143958A |
PURPOSE: To produce a steel tube excellent in high temp. oxidation resistance, strength, and workability at a low cost by rolling a high Cr steel of specific composition into a steel strip under specific temp. conditions, applying anneal...
|
|
JPH08143959A |
PURPOSE: To produce a steel tube used for automobile exhaust system, etc., and having superior oxidation resistance, high temp. strength and workability at a low cost. CONSTITUTION: A high Cr steel, which has a composition consisting of,...
|
|
JPH08141602A |
PURPOSE: Not only to attain a satisfactory prejoined surface but also to enable stable and continuous hot rolling. CONSTITUTION: In the inlet side of a hot finishing mill, at least either tip part of the rear tip part of a preceding slab...
|
|
JP2500405B2 |
PURPOSE: To eliminate the influence of the change of quantity of melted metal to the mutual pressure of welding rolls by enabling a holder which supports a welding roll in a freely turning state to rock along an arcuate orbit against an ...
|
|
JPH08132134A |
PURPOSE: To provide an inner roll type electric resistance welded tube forming machine capable of stably, safely, easily and rapidly achieving the roll exchanging work on the off-line mode, and facilitating the assembling work in on-line...
|
|
JPH08112678A |
PURPOSE: To easily check and correct the occurrence of a forming defect in pipe stock by mounting a shielding cover covering only the local part around a weld zone to lower part of the lifting section of a welding device. CONSTITUTION: A...
|
|
JPH08103817A |
PURPOSE: To reduce the number of workers and to improve safety in operation by making an upper roll axle box to be held pressed at a position for changing the axle box by means of a balancing means and thereby shortening time for changin...
|
|
JPH08103815A |
PURPOSE: To prevent generation of flaw on the surface of a work due to edge of roll, further to prevent welding defect due to sticking of cutting chip resulting from generation of flaw. CONSTITUTION: The part 2a more to upper edge, which...
|
