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JP6916277B2 |
A threaded connection includes a pin (10) and a box (20). The pin (10) includes, in the order from a free end side of the pin (10) toward a tubular body side thereof, an inner sealing surface (11), an inner male threaded portion (12), a ...
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JP6918103B2 |
This invention provides a threaded connection for oil country tubular goods that exhibits excellent corrosion resistance and galling resistance, and a method for producing the threaded connection for oil country tubular goods. In particu...
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JP6900470B2 |
A threaded connection for steel pipes having improved sealing performance is provided. A threaded connection (10) for steel pipes includes a pin (10) and a box (20). The pin (10) includes a nose (11), a pin shoulder surface (12), a pin s...
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JP6893978B2 |
This invention provides a threaded connection for pipes or tubes having high over-torque performance, and a method for producing the threaded connection for pipes or tubes. A threaded connection (1) for pipes or tubes according to the pr...
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JP6891855B2 |
To more effectively suppress the deformation of a pin-side screw portion due to seal interference.A threaded coupling for an oil well pipe is provided that comprises a pin 1 and a box 2, the pin 1 having: a male screw part 1A formed with...
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JP6888677B2 |
Provided is a screw joint for an oil well pipe in which an efficient screw length of a joint portion is achieved, and a processing time and a construction time are reduced. The present invention provides a screw joint for an oil well pip...
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JP6888687B2 |
A threaded joint with excellent tensile strength, comprising: a pin having an externally threaded part comprising a first and second externally threaded sections across a step on an outer periphery on a distal-end side of a first steel p...
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JPWO2020039875A1 |
The disclosed threaded joint for steel pipe consists of a pin (10) and a box (20). The pin (10) has an annular shoulder surface (12) and an annular sealing surface (12) adjacent to the shoulder surface (12) in order from the tip of the p...
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JP2021081009A |
To provide a pipe connection structure for sealing the piping connection structure a pipe connection method and a silicone tape which allow a male screw part to be fastened into a female screw part of metal-made pipe, and which can preve...
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JP6872032B2 |
This invention provides a composition, and a threaded connection for pipes or tubes (1) that includes a lubricant coating layer (21) formed from the composition. The composition according to the present embodiment is a composition for fo...
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JP6860700B2 |
A threaded connection having a straight central axis, where the pin threads and the box threads are arranged such that when the connection is fully made up, the pin roots and box crests come into at least partial interference substantial...
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JP6851997B2 |
A tube arrangement includes a first metal tube provided with a first outer threading in an end region thereof, a second metal tube provided with a second outer threading in an end region thereof, a first butt weld joining the end regions...
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JPWO2020183860A1 |
Provided is a threaded joint having excellent compression resistance and sealing property. In the threaded joint (1), the male threaded portion (4a) has a gap between the female threaded portion (4b) on both the screw top surface (7) and...
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JP2021032343A |
To suppress diameter enlargement of a main body portion in connecting a tubular member, in a pipe joint in which an outer periphery of a metallic component having a female screw portion is covered by the main body portion made of a resin...
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JP2021028534A |
To secure seal performance while improving workability when attaching a piping connection part which is connected to piping, and to prevent the clogging of the piping when repeating the attachment/detachment of the piping.A joint structu...
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JP6831018B2 |
A threaded connection for steel pipes is provided that exhibits improved sealability against the external pressure while maintaining the sealability against the internal pressure. A threaded connection for steel pipes includes a pin 10 a...
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JP6830480B2 |
A plug for a pressure test configured for a tubular component, the tubular component including a male threaded element at a free end, the male threaded element including a male thread and a sealing surface, the plug including a thread co...
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JP6824976B2 |
A process for treating a pin having an external threaded portion and a box having an internal threaded portion wherein the process provides a threadable joint having a high galling resistance. One embodiment of the present invention incl...
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JP6817459B2 |
A threaded connection for steel pipe is provided that improves its internal-pressure sealability while maintaining the high external-pressure sealability of a threaded connection having a nose used in a steel pipe with large diameter and...
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JP6815498B2 |
This invention provides a threaded connection for pipes or tubes having excellent misalignment resistance and high torque on shoulder resistance, and also having excellent corrosion resistance properties, as well as a method for producin...
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JP6816795B2 |
To provide a multithread screw joint which can eliminate an error of a fitment start position as much as possible.A multithread screw joint 1 is attached to an end part of a steel pipe 3, and composed of an inside joint pipe 7 having a m...
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JP6804664B2 |
A threaded connection for steel pipe with improved sealability against the internal and external pressures is provided. A threaded connection 1 includes a pin 10 and a box 20. The pin 10 includes a male thread 11, a nose 12, a pin should...
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JP6795084B2 |
A threaded connection for steel pipe is provided that prevents cross-threading and provides good compression load resistance. A threaded connection (10) includes a pin (30) and a box (40). The male thread stabbing flank (34) of the pin (...
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JP6792956B2 |
To simplify a structure of a rotation stopper for prohibiting relative rotation of a main body and a nut in a pipe joint, and to facilitate a mounting work of the rotation stopper to the pipe joint.A pipe joint 10 has a main body 11 and ...
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JP6776372B2 |
A threaded connection for steel pipe with improved sealing performance is provided. A threaded connection (1) includes a pin (10) and a box (20). The pin (10) includes a pin shoulder surface (11), a pin sealing surface (12) and a male th...
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JP6774426B2 |
The invention concerns a threaded portion of a tubular element for a threaded tubular connection hiving an axis of revolution, the portion comprising a threading extending over its outer or inner peripheral surface, and a first sealing s...
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JP6774427B2 |
The invention concerns a threaded portion of a tubular element for a threaded tubular connection having an axis of revolution, the portion comprising a threading extending over its outer or inner peripheral surface, and a first sealing s...
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JP6765301B2 |
A connecting element for a tubular component, the connecting element being overlaid with a coating including a principal layer constituted by a nickel-phosphorus alloy, a tubular component including one or more such connecting elements, ...
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JP2020133834A |
To provide a coupler device in which a first coupler and a second coupler can be inexpensively and surely connected to and separated from each other, and a heat storage system.A first screw 5 is provided in an outer circumferential side ...
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JP6746492B2 |
The invention concerns an abutment for a tubular component, said abutment being overlaid with a coating comprising a principal layer constituted by an alloy selected from nickel-phosphorus alloys, copper-nickel alloys and nickel-tungsten...
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JP6740993B2 |
To provide an inner surface resin lining thin steel pipe with an excellent screw part (of which a screw shape of a steel pipe outer surface has a normal JIS shape, and unevenness on a steel pipe inner surface is small), and a manufacturi...
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JP2020122551A |
To provide a connection unit 10 capable of connecting a fixed connection part and a connection member easily and surely.A connection unit 10 is constituted by: a nipple 20 which is connected to an outlet 120 of a valve device 100 fixed t...
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JP3226914U |
To provide a connection structure of fire extinguishing equipment piping which can obtain stable sealing performance by screw connection even by a person who is unfamiliar with work, and in addition to this, it can be easily confirmed th...
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JP6722290B2 |
An object of the present invention is to provide a threaded connection that has a wide range of torque at which a predetermined performance is achieved. The threaded connection according to the present invention includes a pin (1) includ...
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JP6717923B2 |
A combination structure for a hose connected between a tire and an air compressor is disclosed. The air compressor includes a box (1) in which a compressor unit (13) and a sealant bottle (2) are installed. The sealant bottle has an inlet...
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JP6715179B2 |
An assembly for producing a threaded connection includes first and second tubular components with an axis of revolution and each provided at one end with at least first, second, and third continuous threaded zones provided in succession ...
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JP2020097095A |
To provide a method of avoiding such a risk that undesired stress is generated on the basis of the application of wrong torque in a method for coupling a pipeline component having a seal element.A method includes the steps of: bringing a...
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JP2020085001A |
To reduce work time for screwing in a tapered screw joint.The tapered screw joint is provided that comprises a female-side tubular member, a male-side tubular member, and an annular seal member. The female-side tubular member includes: a...
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JP6703191B2 |
A threaded connection for steel pipe is provided that can both provide a certain torque resistance and reduce manufacturing costs. A threaded connection (1) for steel pipe includes a pin (10) including a male thread portion (11) on an ou...
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JP6690024B2 |
A threaded connection for steel pipe is provided that prevents galling on the sealing surfaces during make-up while providing high sealing performance after completion of make-up. The pin (10) includes a nose (112) including a pin taper ...
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JP6689888B2 |
A threaded connection includes a first tube having a pin, the pin having pin threads, a circumferential concave outer pin surface, and a pin torque shoulder at a free end, the concave outer pin surface including a pin seal surface and a ...
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JP6683738B2 |
A pin (10) includes, in order from a free end of the pin (10), a shoulder surface (11), a first sealing surface (12), a first male threaded portion (13), a second sealing surface (14), and a second male threaded portion (15). A box (20) ...
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JP6680456B2 |
A pipe coupling (10) has a pipe coupling main body (10A) that is pipe-shaped, a screw portion (12B) that is provided at an axial direction one end portion of the pipe coupling main body (10A), a torque input portion (14) that is polygona...
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JP2020048833A |
To provide a connector and a fluid bag assembly capable of smoothly and easily releasing connection between a connector and a suction tool.A connector of the invention comprises: a cylindrical first connection part which is connected by ...
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JP2020039801A |
To provide a connector and a fluid bag assembly capable of performing correctly, a connection operation and a connection release operation to a fluid bag and a suction tool.A connector 1 comprises: a first connection part 2 connected to ...
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JP6663536B2 |
High sealing performance is provided in a threaded connection used for pipes for oil wells with large wall thickness and with a connection efficiency smaller than 1. A threaded connection (10) connects pipes for oil wells (1). The thread...
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JP2020034095A |
To install a channel joint structure in a space-saving manner.A channel joint structure 1 connecting channel holes 53, 54 formed in first and second fluid devices 51, 52 respectively have: a first male screw part 11 formed outside in a r...
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JP2020506346A |
A threaded tubular joint for drilling or manipulating hydrocarbon wells, with a longitudinal axis, a tapered two-step wedge pin thread with a dovetail wedge thread, a small diameter thread step and a large diameter pin thread. A metal pi...
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JP2020029946A |
To provide a screw joint for a pipe which has excellent seizure resistance and inhibits looseness when used in a horizontal well, and to provide a manufacturing method for the screw joint for the pipe.A screw joint for a pipe according t...
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JP6654643B2 |
A threaded connection for steel pipe with improved sealing performance is provided. A threaded connection (1) for steel pipe includes a pin (10) and a box (20). The outer diameter of the box (20) is smaller than 108 % of the outer diamet...
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