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JP7223102B2 |
A method of friction welding a workpiece to a fluid element includes the step of placing a workpiece weld surface in contact with a fluid element weld surface. The workpiece weld surface is driven in a predetermined pattern along the flu...
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JP7211906B2 |
This coupling device for a tubular member is provided with: a base stand for holding an inner member and an outer member in a state in which the outer member is disposed around the inner member; a plurality of pressing members that are s...
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JP7209825B2 |
This heat exchanger is provided with: a first pipe (2) having a refrigerant flow passage formed therein; a plurality of fins fixed to the first pipe (2); a second pipe (4) having a refrigerant flow passage formed therein; and a pipe join...
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JP2023500762A |
The present invention relates to a transition piece (1a, 1b) for joining parts of a chemical or plant engineering device, the transition piece (1a, 1b) comprising a first piece of material (10) made of a first material and a first piece ...
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JP2023000606A |
To secure the rigidity (reliability) of connection by both welding and a support of a connection part while enhancing the connection rigidity of a weld part by suppressing the thermal stress of the connection part, to prevent the fractur...
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JP2022191598A |
To provide a metal pipe joint and a piping structure that are easy to construct and can eliminate a stress concentration spot.A metal pipe joint 1 has a body pipe 11 provided with an L-shaped internal channel, a receptacle 13 that is pro...
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JP7195571B2 |
To create a pipe in which a flow passage for intruding a sufficient coating quantity of an adhesive liquid therein is surely formed in a clearance between the pipe and a pipe joint, and which can surely fasten and fix the pipe and the pi...
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JP7194024B2 |
To provide a pipe joint device, which is configured to joint two pipes in a refrigeration cycle, in which equipment and an apparatus can be improved.A pipe joint device according to the embodiment comprises a crimping apparatus 21 that c...
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JP7180998B2 |
The invention provides a manufacturing method of resin piping, which is capable of effectively preventing a large displacement or step from being generated between the welded end portions of a resin pipe body member and a resin pipe conn...
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JP7179621B2 |
A method of friction welding a workpiece to a fluid element includes the step of placing a workpiece weld surface in contact with a fluid element weld surface. The workpiece weld surface is driven in a predetermined pattern along the flu...
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JP2022175808A |
To provide a manufacturing method of a pipe with a joint capable of reducing the number of processes in comparison with a conventional method, and further reducing an outer diameter of a cylindrical portion of the joint in comparison wit...
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JP7175419B2 |
To provide a construction piping system which is formed by connecting piping elements by using a mechanical-type pipe joint and which can remarkably reduce construction work in a construction site.An annular bulged part is integrally for...
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JP7165279B2 |
To provide a construction piping system which is formed by connecting piping elements by using a mechanical-type pipe joint and which can remarkably reduce construction work in a construction site.An annular bulged part is integrally for...
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JP7165161B2 |
To greatly reduce construction work at a construction site by a building piping system composed by connecting piping elements to each other using mechanical pipe joints.An annular swelling part is formed integrally at at least one pipe e...
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JP2022157307A |
To make it possible to easily connect a hard air conditioning pipe and a soft air conditioning duct via a connection member of a simple structure.In an inner peripheral side part of a first surface 11 of an annular and soft sheet 10 of a...
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JP7149672B1 |
A pipe connection method capable of connecting pipes in a short time is provided. A thin cylindrical brazing material 10 is formed in advance on the inner surface 2A of a through hole of a pipe joint 1, and while rotating the pipe joint ...
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JP2022147339A |
To provide a compressive caulking pipe joint capable of preventing a resin pipe inserted between a joint body and a sleeve from coming off under a high-temperature environment.A compressive caulking pipe joint 10 comprises a joint body 2...
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JP2022148042A |
To provide a high-airtightness clad pipe for a joint in which there is no gas failure in a case of connecting pipes of different metals, a manufacturing method therefor, and clad pipe joint.One end part comprises a multi-layer structure ...
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JP7136596B2 |
To provide a method for connecting a multilayer pipe, which can enhance connection accuracy between the multilayer pipe and a member to be connected.A method for connecting a multilayer pipe comprises: forming an adhesive layer on an ext...
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JP7130253B2 |
To provide a technology that can control an oxide film from being formed at an inner surface of a joining part as much as possible (control oxide film from being formed at pipe inner surface of joint part as much as possible) in joining ...
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JP2022128666A |
To provide a water conduction metal fitting capable of improving design, and a method for manufacturing the same.A faucet body cover 10 (water conduction metal fitting) comprises: a metal-made body part 20 (first pipe member) having a ca...
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JP2022120705A |
To reduce possibility of leakage of fluid from a part connected by brazing.A pipe joint body 10 comprises a first pipe 11, a second pipe 12, and a joint part 13. The first pipe 11 and the second pipe 12 are formed of a material containin...
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JP2022106818A |
To provide a joint which reliably fixes a tube to a joint under high pressure.A couling joint (3, 3') to a tubular element (5, 5') has a first end part (9, 9') provided with a first coupling element (21, 21'), in which at least a part of...
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JP7092365B2 |
To provide a pipe connection structure capable of preventing water leakage reliably, enhancing workability for piping, and further capable of facilitating maintenance.Upstream and downstream pipes 2a and 2b are fitted and bonded so as no...
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JP7087612B2 |
A piping structure in which a first pipe member (12) and a second pipe member (14) are connected to each other in an insulated state. A first connecting pipe part (121) constitutes a portion of the first pipe member and includes a tip en...
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JP2022080848A |
To provide a piping system for an air conditioner capable of not only providing weight-saving and vibration insulation effects achieved with a refrigerant pipe being air conditioner piping of a vehicle and a flange attached to the refrig...
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JP7075982B2 |
To provide a cylindrical distribution pipe for heat exchanger and a coupling structure for a branch pipe in which a welding joint can be easily performed.A cylindrical distribution pipe for heat exchanger and a coupling structure, includ...
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JP7072052B2 |
A pipe device includes a pipe and a connection element. The pipe has a pipe jacket that has an inner surface and an outer surface and forms a flow channel. The connection element forms a through-channel that extends from a connection pie...
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JP7065726B2 |
To provide a multi-layer pipe which has excellent adhesion reliability and weatherability, has high flat strength, and can be used under pressure.The multi-layer pipe, according to the present invention, includes an inner layer and an ou...
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JP7063620B2 |
The invention relates to a Fitting (3, 3') for connecting to a tubular element (5, 5') having a first end section (9, 9') comprising at least one first connection element (21, 21'), wherein the diameter of at least a part of the first co...
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JP2022053383A |
To provide an adhesive for piping having high flame retardancy and a piping structure.An adhesive for piping contains a resin component comprising a polyvinyl chloride-vinyl acetate copolymer resin, and inorganic particles.SELECTED DRAWI...
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JP7043870B2 |
To provide a nipple capable of efficiently forming a plurality of groves at an interval in an axial direction on an outer peripheral surface of the nipple, and to provide a manufacturing apparatus for manufacturing the nipple and a manuf...
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JP2022049982A |
To provide a pipe joint which can enhance chemical resistance, and also can enhance cutoff performance for a long period of time.A pipe joint having a receptacle at an end part comprises a pipe joint main body including a first resin, a ...
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JP2022049363A |
To provide a multilayer pipe capable of enhancing weather resistance and chemical resistance, capable of preventing forgetting to scrape an outer layer when being connected to a joint, and capable of enhancing adhesion strength with the ...
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JP7042756B2 |
A press fitting device (1) for establishing a fluid-tight connection with at least one pipe section (10), the press fitting device being configured to generate a sound when a gaseous fluid flows along or through the press fitting device ...
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JP7024956B2 |
To facilitate connection of branch piping at a piping construction site.A branch joint 10 includes: a joint body 11 having cylindrical welded portions 11a, 11b which can be welded on both ends; and a cylindrical branch portion 12 integra...
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JP2022025952A |
To suppress impact by welding heat while suppressing generation of erosion caused by a remaining insertion gap.A pipe connection structure 100 includes a fluid flow outlet 10 formed in a cylindrical shape, and a pipe 20 connected to the ...
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JP7016140B2 |
To provide a pipe joint capable of suppressing occurrence of toxic gas and failure of welding, and improving workability in connection to a metal pipe.A pipe joint X includes a joint pipe body 1 where a whole surface of a pipe is covered...
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JP7015954B1 |
To airtightly or liquidally connect a pipe joint and a pipe element while reducing the formation of a surplus regardless of the material constituting the press type pipe joint and the pipe element. The annular groove corresponding to the...
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JP7005752B2 |
The invention can be used for the internal insulation of a welded pipeline joint between pipes having an internal protective coating. A device according to a first variant comprises a power actuator having a cylindrical elastic working m...
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JP6997190B2 |
A tube arrangement comprising a first metal tube, a second metal tube, a first sleeve part, and a second sleeve part. The first and second sleeve parts are threadedly connected to the first and second metal tubes. The first and second me...
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JP6991418B2 |
The invention provides a pipe connector, and belongs to the technical field of machinery. The pipe connector comprises two internal threaded cylinders distributed on the same axis, wherein the two internal threaded cylinders are in conta...
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JP6976017B1 |
To provide a pipe joint structure which can be connected to a tip diameter-expanded tapered portion of an existing flare joint main body without processing a flare forming portion on a metal pipe. A metal pipe P has a tip expansion pipe ...
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JP2021181817A |
To provide a manufacturing method of a hose joint capable of integrating a nipple and a socket without applying an excessive load to the nipple due to caulking of the socket, and to provide a manufacturing method of a hose assembly using...
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JP6959399B2 |
To provide a brazing method by locally injecting a non-oxidation gas only to a heated portion by a simplified method while resolving the problem of strength poverty due to an opening.A method for brazing and joining the ends of two pipes...
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JP2021173409A |
To improve construction workability on a press type pipe joint for fixing a pipe to be connected by inserting the pipe to be connected into a socket part including an annular swelling part that is internally provided with an O-ring, and ...
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JP2021167655A |
To provide a pipe joint enabling the water cut-off performance thereof to be improved even when water pressure is high.A pipe joint having a socket at an end is provided, comprising a pipe joint body which includes first resin and a sock...
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JP6948402B2 |
Vibration absorption tubing and a manufacturing method thereof. The manufacturing method comprises: a solder placement step comprising: placing solder at solder placement portions (324, 325) in an inner cavity of an adaptor (3); a pipe f...
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JP6949756B2 |
To improve seal performance when a gasket is attached to a block.An attachment structure of a gasket to a block includes: a block 1 having a fluid passage 11; and a gasket 3 which encloses an opening 13 of the fluid passage 11. The block...
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JP6950735B2 |
To provide a refrigerant pipe of a freezer which enables easy connection work with a narrow tube.A refrigerant pipe R2 of a freezer includes: a first pipe 23 in which a refrigerant flows and which is made of stainless steel; a joint pipe...
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