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WO/2018/147389A1 |
This method for manufacturing an electroseamed metal tube is for manufacturing an electroseamed metal tube by abutting the side ends of a metal strip and then welding the side ends by high frequency heating. An inner-surface-side corner ...
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WO/2018/140935A1 |
A tubular member (100) includes a tube body (109), a tube end (112,113), an exterior surface (140), an interior surface (142), a nominal wall thickness, a longitudinal axis (111), a welded seam (110), and a patch of material (205). The w...
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WO/2018/139953A1 |
An assembly and welding unit for longitudinally welded pipes comprises a gantry having guides with a welding bridge movably mounted thereon, said welding bridge carrying welding equipment with a first welding head for applying a weld sea...
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WO/2018/136479A1 |
A method of manufacturing a coiled tubing string that meets specified material properties in a single continuous operation.
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WO/2018/135770A1 |
The present invention relates to a method for manufacturing a double pipe and, more specifically, to a method for manufacturing a double pipe, the method comprising: a primary roll molding step of forming bent parts on both longitudinal ...
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WO/2018/132744A1 |
Tube forming methods can be used for efficient transition in the production of tubes having varying thickness. Material used to form consecutive tubes may have the same thickness along a separation plane separating a first discrete secti...
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WO/2018/132034A1 |
An assembly and welding unit for manufacturing pipes comprises a pipe billet feed means with a roller conveyor having a longitudinal axis and passing through an assembly and welding stand with radially arranged clamping rolling beams for...
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WO/2018/129256A1 |
Devices, systems, and methods are directed to formation of tubular structures, such as spirally formed structures, having spirally extending reinforcing material. In particular, tubular structures can be formed in a continuous process in...
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WO/2018/128882A1 |
A method for forming features in an exterior surface of a heat transfer tube includes forming a plurality of channels into the surface, where the channels are substantially parallel to one another and extend at a first angle to a longitu...
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WO/2018/115501A1 |
23 ABSTRACT A connection tube (1) for connecting two tubes (8, 9) of different alloys, wherein the connection tube has a central through-hole extending along a longitudinal axis and comprises a first end portion (2) of a first alloy, 5 a...
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WO/2018/117039A1 |
A welding device for electric resistance welded pipe for manufacturing an electric resistance welded pipe wherein, in an open pipe having an opening extending in the travel direction, both end surfaces of the pipe material facing the ope...
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WO/2018/115787A1 |
The present invention relates to a method for regulating the pitch of the turns (22) of a metal carcass (12), and to an installation for implementing same. The method comprises the following steps: a) a metal carcass (12) having turns (2...
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WO/2018/115502A1 |
A method for manufacturing a composite tube having at least one double-layered portion with an annular outer layer of a first alloy and an annular inner layer of a second alloy, comprising : - providing a base component (301) of the seco...
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WO/2018/116787A1 |
Provided are a method for evaluating steel pipe capable of evaluating deformation performance thereof even if the pipe expansion pitch is coarse or fine and a method for manufacturing steel pipe using the method for evaluating steel pipe...
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WO/2018/109316A1 |
The present invention relates to a composite material comprising aluminum and alumina, to the production method thereof and to a cable containing said composition material as an electrically conductive element.
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WO/2018/104707A1 |
A method and apparatus are disclosed. The method includes the steps of providing an elongate sheet having a uniform thickness and a first and further spaced apart long edge, to a first pair of a plurality of spaced apart pairs of opposed...
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WO/2018/103132A1 |
A high-bonding strength copper-aluminum composite conductive material and a preparation method therefor, comprising a clad copper layer and an aluminum core matrix; an interatomic bonded metallurgical bonding layer is formed between the ...
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WO/2018/101235A1 |
[Problem] The purpose of the present invention is to provide a structural member comprising a extruded material effective in achieving a reduction in weight while securing strength and rigidity. [Solution] The present invention is charac...
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WO/2018/101406A1 |
A heat transfer tube made of aluminum, wherein the heat transfer tube is provided with a streak-shape Zn diffusion layer (6, 106) formed in a spiral shape along the length direction on the circular outer circumferential surface of the he...
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WO/2018/092492A1 |
The objective of the present invention is to enable accurate detection of a mismatch during electric resistance welding. This operation monitoring device for high-frequency resistance welding and induction heated welding of an electric r...
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WO/2018/091543A1 |
The signal transmission system or a sensor system (1, 1') comprises at least one signal line (2) and at least once sensor (10) connected to the signal line, a first tube (3) formed of a metal strip or metal plate (4) having two longitudi...
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WO/2018/092461A1 |
Provided is a welded tube manufacturing device that, in order to manufacture a high quality welded tube, manufactures a welded tube by bending a metal plate and welding together the edges of the metal plate that are made to abut each oth...
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WO/2018/093418A1 |
A method and apparatus are disclosed, with a continuous straw forming process for spiral winding boron-coated, foil into a rounded tube or cylinder with an overlap and tight contact between the spiral edges, and a welding process utilizi...
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WO/2018/087818A1 |
Provided is a welding monitoring apparatus that monitors the welding state of a V-shaped gathered region of a metal plate gathered in a V-shape when manufacturing an electric-resistance-welded steel pipe by conveying a strip-shaped metal...
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WO/2018/079398A1 |
Provided is a method for manufacturing an electric resistance welded steel pipe for a high-strength thin hollow stabilizer. A hot rolled sheet is prepared by heating a steel material having a composition containing, on a mass basis, 0.20...
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WO/2018/080374A1 |
The invention relates to a method of producing a patterned composite metal plate by the steps of a) providing at least two different metal and/or metal alloy powders b) filling a container, b1) with the powders in different individual la...
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WO/2018/073358A1 |
A method of manufacturing a tube is provided. The method includes: selecting a core pipe having a thickness that is initially less than a desired thickness of the tube; and building-up an outer layer over an exterior surface of the core ...
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WO/2018/069391A1 |
The invention relates to a shaping press comprising a female die (2a) that is supported on a lower beam (2), and a male die which is supported on an upper beam (3) and is provided in the form of a bending sword (4) that extends in the di...
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WO/2018/064137A1 |
A method of forming a metal-graphene composite includes coating metal components (10) with graphene (14) to form graphene-coated metal components, combining a plurality of the graphene-coated metal components to form a precursor workpiec...
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WO/2018/056886A1 |
The present disclosure describes a telescopic column (1) for height- adjustable furniture, the column comprising an outer elongated tube (10) and an inner elongated tube (20), the inner tube being arranged to move into and out of the out...
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WO/2018/047723A1 |
The present invention provides a clad welded pipe with which the mechanical properties of the pipe itself are improved by reducing the width of a welded portion, and the function of which as a clad pipe is not compromised. The present in...
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WO/2018/047722A1 |
Provided is an electric-resistance-welded clad steel pipe whereby a region in which a solidification structure having a particularly large effect on characteristics is formed in a weld is reduced, and function as a clad pipe is also not ...
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WO/2018/045168A1 |
Spiral forming devices, systems, and methods can be used to join edges of a of a stock material, in a curved configuration, along one or more joints to form tubular structures, such as conical and/or cylindrical structures (e.g., frusto-...
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WO/2018/010200A1 |
A method for manufacturing a flat tube for a vehicle air conditioner, comprising the following steps: taking a metal base material, forming a chamfer (1) at a first end face (3) of the metal base material, and bending at a portion near a...
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WO/2018/011377A1 |
The invention relates to a method for manufacturing of steel tube from a long steel strip, comprising providing a length of steel strip material to the process, forming a tube of the steel strip material, welding the formed tube in longi...
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WO/2018/010201A1 |
A method for manufacturing a folded multi-channel flat tube, comprising the following steps: bending bent sections at both sides of a material strip to form a side of a preformed channel; bending the bent sections at both sides of the ma...
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WO/2018/003248A1 |
Provided is an electric seam welded stainless steel clad pipe having excellent weld fracture characteristics as electric seam welded, as well as excellent corrosion resistance of a pipe inner surface, without build-up welding or other ad...
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WO/2018/002295A1 |
The present disclosure relates to a bimetallic tube comprising a first metallic tube having an inner diameter and an outer diameter, and a second metallic tube having an inner diameter and an outer diameter, wherein the first metallic tu...
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WO/2017/207660A1 |
The invention relates to a method for producing an elongate hollow body consisting of steel and having a polygonal cross-section, comprising the following steps: producing an intermediate hollow body having a round cross-sectionfrom a fl...
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WO/2017/209515A1 |
A valve assembly is disclosed. The valve assembly according to the present invention is installed between an inflow pipe and a discharge pipe through which fluid is transferred, and the valve assembly comprises: a valve body which is pro...
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WO/2017/204628A1 |
The invention relates to a process of producing a clad plate (3) comprising a first, structural-strength-providing base layer (2) of a first material and on at least one side thereof a second, wear- resistance-providing cladding layer (1...
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WO/2017/198855A1 |
The invention relates to a scaffolding post (10) made of steel for a scaffold to be used in the construction sector, on the wall (12) of which longitudinal ribs (18) are integrally formed on the inner periphery. The longitudinal ribs ext...
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WO/2017/193224A1 |
The invention relates to a high-pressure line for conveying highly pressurised fluid to a consumer, in particular for supplying fuel under injection pressure to one or more injectors (14) of an internal combustion engine. The high-pressu...
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WO/2017/182111A1 |
A high temperature iron-chromium-aluminium (FeCrAl)l alloy tube (1) extending along a longitudinal axis (C), wherein the tube is formed from a continuous strip (3) of a high temperature FeCrAl alloy and comprises a helical welded seam (2...
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WO/2017/182255A1 |
The invention relates to a device (2) for producing a flexible coiled tube (10) which can be flexibly elongated to a limited degree and which is made of a continuously supplied strip of a flat metal material, comprising a roll-bending an...
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WO/2017/178551A1 |
The invention relates to a reactor for cracking hydrocarbons wherein the reactor has inner wall; characterized in that the inner wall comprises a plurality of concave dimples embedded in a surface of said inner wall.
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WO/2017/176015A1 |
The present invention relates to a camshaft device, which allows a plurality of components to be assembled to a main shaft, and a method for manufacturing the camshaft device. The camshaft device may comprise: a main shaft lengthily exte...
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WO/2017/158635A1 |
This tube diameter expanding method includes: a step for rotating a tube having one end thereof fixed to a turntable about the center axis of the tube; a step for inserting a rod-like roller extending in the tube axial direction into the...
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WO/2017/157556A1 |
The invention relates to a method and an apparatus for producing gun barrels having a grooved or ribbed inner surface (110) with straight or helical grooves (111) or ribs. The method comprises: providing a metallic hollow cylindrical pre...
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WO/2017/155056A1 |
The method for manufacturing an automobile component according to the present invention is provided with: a molding step for pressing a portion of a hollow tube formed by a composite material including a metal material or metal and a res...
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