| Document |
Document Title |
|
WO/1997/023118A1 |
A wrap tool having first and second coil regions and flange regions for inducing oscillating magnetic fields to fuse a plastic coupling having heating elements to a substrate. The first and second coil regions are wrapped around a select...
|
|
WO/1997/022228A1 |
High frequency electrical heating apparatus in which metal parts (10) are heated as they are advanced, either for annealing or forge welding purposes, and in which the electrical heating current is supplied by a solid state D.C. to A.C. ...
|
|
WO/1996/042183A1 |
A handheld power control device (10) adapted to be connected to an external power supply for controlling the electric power applied to a heating coil (60) positioned in a fusible area of a thermoplastic pipe joint for thermally fusing th...
|
|
WO/1996/039789A1 |
A method and apparatus in which edge portions of metal parts (1), the edge portions being disposed with opposed surfaces (3, 4), are heated by high frequency electrical currents as the edge portions are advanced and brought together at a...
|
|
WO/1996/038020A1 |
An inductor for heating a material which is to undergo treatment, and for welding and cutting the said material, has a toroidal winding of variable cross section with a gap between two adjacent turns at the point of smallest cross sectio...
|
|
WO/1996/034717A1 |
A welded pipe obtained by liquid-phase diffusion welding of pipes with an intermediate insert having a lower melting point than the pipes, wherein the joint has an increased outer diameter and a decreased inner diameter. A pipe welding m...
|
|
WO/1996/027475A1 |
A method of forming a seamed metal tube (20c) having a metal coating (56) on at least an inside surface of the tube (20c) from a continuously moving, relatively flat metal strip (20a) is disclosed. The primary feature of the inventive pr...
|
|
WO/1996/006707A1 |
A fin insert (80) shapes the edges of an enhanced metallic strip (72, 74, 76) prior to shaping the strip into a tube and welding. The edges of the metallic strip are shaped so that the longitudinal edges of the unenhanced portion (76) of...
|
|
WO/1996/004099A1 |
A process and device are disclosed for welding workpieces (3, 4), in particular metal sheets. The pieces are conductively or inductively heated at the edges to be welded by means of a high-frequency alternating current and are then joine...
|
|
WO/1996/003249A1 |
During the production of a welded pipe from a metal strip by utilizing laser welding techniques, the end portions of a metal strip are preheated so that the temperature of these portions of the metal strip to be laser welded attains a le...
|
|
WO/1996/000628A1 |
In a method for heating closely spaced end portions (3, 4) of two pipes (1, 2) to be joined by forge welding or the like two diametrically opposed contacts (6, 7; 8, 9) are attached to each end portion. High frequency alternating current...
|
|
WO/1995/029786A1 |
The method of forming a coated seamed metal tube (20c) of this invention is particularly, but not exclusively, adapted to existing continuous tube forming mills, wherein the tube (20c) is formed from a metal strip (20) and welded with th...
|
|
WO/1995/016525A1 |
According to the present invention, a rear end portion of a preceding metal piece and a front end portion of a subsequent metal piece are heated, pressed and joined prior to the finishing hot rolling thereof, by placing the two metal pie...
|
|
WO/1995/007156A1 |
A plant is disclosed for producing metallic heat exchanger tubing (15) with spiral heat exchanger ribs secured to its outer surface from smooth tubing and flat, ribbon-shaped material for the ribs. In order to allow ribbed tubes (15) to ...
|
|
WO/1995/000286A1 |
The method of forming a seamed metal tube (20c) having a metal coating (56) of this invention includes galvanizing the strip (20) prior to welding. The strip (20) is then formed into an open seam tube (20b) and welded in an inert atmosph...
|
|
WO/1995/000255A1 |
A continuous tube forming and coating process and apparatus, wherein the tube is formed and welded with the seam located at the bottom of the tube and the painted surface on the inside of the tube. An applicator (72) coats the inner surf...
|
|
WO/1994/029040A1 |
This invention relates to a continuous hot rolling method having the steps of cutting off a rear end portion of a preceding metal piece and a front end portion of a subsequent metal piece, heating the resultant metal pieces, increasing t...
|
|
WO/1994/029068A1 |
An apparatus for welding together two metal sheets (4, 5) includes clamping rails (17, 18; 23, 24) for positionally fixing the sheets (4, 5) each on a table (2, 3), and an induction device movable towards and away from a joint (15) betwe...
|
|
WO/1994/013457A2 |
A spigot (22) and socket (20) are welded together by inducing a current in an induction member (12) embedded in the weld region. The temperature of the induction member (12) rises until it reaches its Curie temperature, at this point the...
|
|
WO/1992/005895A1 |
Structural members comprising an intermediate web with hollow flanges extending longitudinally thereof are made in a cold roll forming process from three separate strips of metal (7a, 7b, 7c) which are shaped and fused together in a cont...
|
|
WO/1992/005893A1 |
Structural members (80) having an intermediate web (81) and hollow tubular side flanges (83, 85) extending longitudinally of the web (81) are formed in a cold rolling operation such that one of the tubular side flanges (83) has an outsid...
|
|
WO/1992/002315A1 |
A method of joining billets and method of hot rolling, in which a preceeding billet and another following billet on the conveying line on the inlet side of the finishing rolling machine are brought into butt contact with each other at th...
|
|
WO/1992/002313A1 |
A method and a device for joining billets, in which, for performing continuous hot rolling with high productivity, the rear end of a preceeding billet and the forward end of another following billet are brought into contact with each oth...
|
|
WO/1991/005628A1 |
The invention relates to a process for joining a first metal body to a second by melting. According to the invention, material (3) from which the second body is obtained by heating and melting is heated at least to the solidus or melting...
|
|
WO/1991/003830A1 |
A metallic composite useful in electrical components comprises at least one base metal alloy constituent (20) metallurgically bonded to at least one noble metal alloy constituent (22). A process for producing the metallic composite alloy...
|
|
WO/1988/003853A1 |
Arrangement in connection with induction heating, especially for butt-welding of two substantially pipe- or bolt-shaped elements (11, 12) of metal, which are provided close to each other along substantially the same center axis, and whic...
|
|
WO/1987/005841A1 |
A high frequency resistance welding system (10) having a pair of jaws (12, 14) which are pivotally mounted together and are adapted to clampingly engage the work to be welded therebetween. Each jaw has two arms (20, 22; 24, 26) and each ...
|
|
WO/1986/004005A1 |
In a method for heating metal elements (1, 2) which are to be joined, for example by forge welding, there is used a high frequency resistance heating. The elements are provided with surfaces to be welded and are positioned so that said s...
|
|
WO/1986/003443A1 |
To realize an apparatus for automatically controlling heat input by a high-frequency power supply used for welding seal welded pipes of high quality, by detecting variation of the output frequency (f(i)) of a high-frequency power supply ...
|
|
WO/1985/001413A1 |
An apparatus and method for fusing the ends of battery cell terminal posts (20) and the ends of hollow bushings (22) fixed in the plastic cover (21) of a battery (10) being assembled and within which the terminal posts (20) are concentri...
|
|
WO/1984/003851A1 |
A used combustor liner (20) for a gas turbine engine is restored to its original dimensions by mechanical reforming wherein the part is selectively heated at two circumferencial locations by an induction coil (64). When fuel nozzle suppo...
|
|
WO/1981/002405A1 |
A method for forming a lateral connection between a first pipe and a second pipe comprises the introduction of the end of the second pipe (7) into a hole (3) in the first pipe, the end of the second pipe carrying or incorporating electri...
|
|
JP7454432B2 |
To provide a spatter removal device capable of reducing a poor appearance of a welded steel pipe by reliably removing spatter, capable of being easily mounted on an apparatus for manufacturing the welded steel pipe, and capable of achiev...
|
|
JP2024509542A |
forming a fused rail assembly in which one or more heating elements are disposed within a gap between a first end surface and a second end surface of the first rail and the second rail that are aligned; how to. The end faces are covered ...
|
|
JP7435909B1 |
When using an electric resistance welded tube for the outer tube, in order to improve the fit between the inner tube and the outer tube, the height of the convex part of the cut mark on the inner surface of the outer tube can be reduced ...
|
|
JP7435930B1 |
Providing technology that can prevent welding defects. Before welding by electric resistance welding, the outer surface temperature T of the edge portion is determined based on information on the temperature distribution in the wall thic...
|
|
JP2023182081A |
To provide a welding management device for electric resistance welded (ERW) steel pipes, a welding management system, a welding management method for ERW steel pipes, and a method for manufacturing ERW steel pipes, which are configured t...
|
|
JP7375946B2 |
The present invention provides: a square steel tube in which the ductility of the corners thereof is increased, and a method for manufacturing the same; and a building structure employing said square steel tube. A square steel tube 10 ...
|
|
JP2023143747A |
To provide a friction welding device in which temperature uniformity in a welding circumferential direction of a thin-wall metal part and uniformity of a pulsating magnetic field are guaranteed, a weld joint structure and grains are even...
|
|
JP2023530426A |
configured to hold the longitudinal edge (101) of the metal strip (102) in place prior to welding the edges together in the welding section (201) of the welded tube roll forming apparatus (200); A seam guide assembly (1) comprising a fro...
|
|
JP7306494B2 |
Provided are a rectangular steel pipe, a production method therefor, and a building structure. The present invention is a rectangular steel pipe having flat plate parts and corner parts, wherein, when the average thickness of the plate p...
|
|
JP7300367B2 |
To provide a welded surface step detection method of welded part on electroseamed steel pipe capable of automatically and accurately detecting welded surface steps remaining in a welded part of the electroseamed steel pipe after cutting ...
|
|
JP7265927B2 |
To minimize an inconvenient influence due to sputters generated during welding an electric resistance welded pipe.An impeder device 1 to be used to weld an electric resistance welded pipe includes an outer cylinder pipe 10 with both ends...
|
|
JP7260785B2 |
To accurately detect welding abnormalities when manufacturing an electric-resistance welded pipe by welding using high-frequency power generated by switching.Provided is an electric-resistance welded pipe welding device for molding a tra...
|
|
JP2023007638A |
To provide a technique of improving measurement accuracy of a discharged molten steel quantity in electric-welding.A welding management device 100 of an electric welded tube comprises: a prior-welding discharged molten steel area calcula...
|
|
JP7196549B2 |
A high-carbon steel pipe (1) with which it is possible to shorten the annealing time of a weld (3) is realized. The steel pipe (1) is formed by welding the edges of a steel plate or steel strip (2) containing 0.4-1.5 mass% of C, 0.03 mas...
|
|
JP7188270B2 |
To provide information exhibiting a relation between welding speed and input power, and welded state, upon the operation of ERW.In the manufacturing method of a metal pipe, both ends in a circumferential direction of a metal plate are ab...
|
|
JP2022168987A |
To provide an electroseamed steel pipe having excellent low-temperature toughness and HIC resistance.A matrix part of an electroseamed steel pipe includes, by mass%, 0.010 to 0.080% C, 0.05 to 0.40% Si, 0.60 to 1.60% Mn, 0 to 0.020% P, 0...
|
|
JP7143658B2 |
To provide electro-resistance-welded small diameter pipe welding operation management method and welding method by which when manufacturing an electro-resistance-welded small diameter pipe, welding can be performed in the first class wel...
|
|
JP7119561B2 |
To estimate how far input power during welding is from input power during transition from a second kind welded condition to a second kind welded condition of a two-stage convergence type.A monitoring method according to the present discl...
|
