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1887 results about "Flange" patented technology

A flange is an external or internal ridge, or rim (lip), for strength, as the flange of an iron beam such as an I-beam or a T-beam; or for attachment to another object, as the flange on the end of a pipe, steam cylinder, etc., or on the lens mount of a camera; or for a flange of a rail car or tram wheel. Thus flanged wheels are wheels with a flange on one side to keep the wheels from running off the rails. The term "flange" is also used for a kind of tool used to form flanges. Pipes with flanges can be assembled and disassembled easily.

Rail vehicle

PendingCN122354598AControl theoryImpact
This invention discloses a rail vehicle, including a car body, a coupler, a first mounting plate, and an anti-climb mechanism. The first mounting plate is fixedly connected to the car body and has a first through hole through which the coupler passes. The coupler has a coupler flange and a boss, forming an annular groove between them. When two car sections are pressed together, the coupler is subjected to a compressive impact force to a critical value, causing the shear bolt to break and the coupler to retract. When the two car sections tend to separate, the coupler is subjected to a tensile force, causing it to fall and the lower edge of the first through hole to engage with the annular groove, preventing the coupler from being pulled out and causing the two car sections to separate. Simultaneously, the long-short anti-climb mechanisms located on both ends mesh and absorb energy, preventing the two car sections from climbing each other when pressed together and preventing them from detaching after separation. This structure can prevent the coupler and anti-climb mechanism from failing after the car body is subjected to a collision impact, significantly improving the safety and efficiency of the rescue process.
Owner:ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD

A connection structure of an extruder and a pipe mold

ActiveCN224446778UAssembly disassemblyFlange
This utility model discloses a connection structure for an extruder and a pipe die, including a first flange fixed to the extruder, a second flange fixed to the pipe die, and multiple bolts. The first flange has multiple first connection openings on its outer circumference, each extending radially along the first flange. The second flange has multiple second connection openings with the same position and shape as the first connection openings. Each bolt is provided with an anti-rotation portion, the thickness of which along the bolt's radial direction is no greater than the width of the first connection opening, and the width of which along the bolt's radial direction is greater than the width of the first connection opening. When each bolt passes through the corresponding first and second connection openings and is connected to a nut, at least a portion of the anti-rotation portion is located within either the first or second connection opening. This connection structure facilitates assembly and disassembly, effectively improving the reliability and installation efficiency of the connection between the extruder and the pipe die.
Owner:KRAUSSMAFFEI MACHINERY ZHEJIANG CO LTD

High-tightness civil air defense door device

The utility model relates to the technical field of adjusting support, concretely to a high airtightness civil air defence door device. The utility model discloses door frame and door leaf, the inside of door leaf is equipped with adjusting device, the adjusting device includes flange bearing and two racks, the circular arc surface of flange bearing is fixedly connected with door leaf, the inboard fixedly connected with the shaft of flange bearing, one end fixedly connected with the gear of the shaft, the outside of gear is engaged with two racks, one end fixedly connected with the connecting plate of rack, one end fixedly connected with the moving plate of connecting plate, one side of two moving plates is connected with door leaf slidingly. The traditional high airtightness civil air defence door device basically adopts single point locking structure, when single point locking, impact force (such as explosion shock wave) concentrates on single locking point, causes door leaf to bear non-uniform load, and the problem that partial door leaf is easily caused to be recessed or locking point welding place fatigue fracture.
Owner:SUZHOU GANGDUN CIVIL AIR DEFENSE ENG CO LTD

Self-aligning roller bearing

ActiveDE102019200398B4Classical mechanicsSpherical roller bearing
A self-aligning roller bearing (1) comprising an inner bearing ring element (2), an outer bearing ring element (3), and at least a series of roller elements (4) arranged between the inner and outer bearing ring elements (2, 3), wherein the inner bearing ring element (2) has a retaining flange (21) provided on a first axial side of the roller bearing (1), the retaining flange (21) being designed to prevent the roller elements (4) from falling out of the roller bearing (1) through a first axial opening (Ax) between the inner and outer bearing ring elements (2, 3) on the first axial side, the roller bearing (1) further comprising a first sealing ring element (5) arranged on the first axial side for sealing the first axial opening (Ax), the first sealing ring element (5) being rotatable with respect to the inner bearing ring element (2) and bearing against a sealing mating surface (23) of the inner bearing ring element. (2) seals,wherein the retaining flange (21) provides at least one filling recess (22) which is designed to allow the roller elements (4) to be inserted between the inner and outer bearing ring elements (2, 3) during the assembly of the roller bearing (1), and the sealing mating surface (23) is arranged axially outside the at least one filling recess (22).
Owner:AB SKF SKF PATENT DEPARTMENT

A method for pre-burying chimney anchor bolts

The application discloses a pre-buried construction method of chimney foundation bolts. The double-row circumferentially distributed foundation bolts can be relatively close to each other by using a positioning tool, and can be pulled again by a pulling device to correct the position in the semicircular groove, so that the double-row circumferentially distributed foundation bolts correspond to the bolt holes of the double-row flange plate, the double-row bolt holes on the flange plate are synchronously penetrated by multiple double-row foundation bolts, and the problem that manual hammering of single foundation bolts to penetrate the double-row holes of the flange plate cannot realize the synchronous penetration of multiple double-row foundation bolts to butt joint the double-row holes of the flange plate is solved.
Owner:中国电建集团贵州工程有限公司

An underground continuous wall waterproof structure

ActiveCN117090189BExcavationsBulkheads/pilesSlurry wallRebar
This application relates to the technical field of building construction, and in particular to a waterproof structure for diaphragm walls. It includes a wall body consisting of multiple diaphragm walls pre-cast on the sidewalls of a foundation pit, and a sealing assembly for sealing the joints between adjacent wall sections. The sealing assembly includes a connector disposed between the two adjacent wall sections. The connector includes a web plate disposed between the end faces of the two adjacent wall sections and a pair of symmetrically arranged flanges on both sides of the web plate. The web plate is perpendicular to the flanges, and the flanges are located on both sides of the joint between the two adjacent wall sections and are abutted against the sides of the wall. The web plate and the flanges form a pair of mounting grooves for installing the wall ends. Precast reinforcing bars are provided on the end faces of the two adjacent wall sections facing the web plate. The web plate is welded to the reinforcing bars, and mortar for connection with the wall can be poured into the mounting grooves. This application improves the sealing effect at the joints of diaphragm walls and prevents leakage problems.
Owner:CHINA CONSTR FIRST BUILDING (GRP) CORP LTD +1

Stroke control device of multi-wire saw and control method thereof

PCT designated stageWO2026146718A1Wire rodReciprocating motion
The present invention provides a stroke control device of a multi-wire saw, the device comprising: a spool having a cylindrical shape, having flanges at both ends, which protrude from the outer circumferential surface thereof in the circumferential direction, having a starting point of a wire unwinding point formed adjacent to the inner surface of any one of the flanges, and having a wire wound thereon through rotation; a pulley which guides a wire delivered from a cutting area, to the unwinding point; a traverse which linearly reciprocates a traverse arm having the pulley installed thereon, along the axial direction of the spool to correspond to a stroke by which the wire is wound on the spool; a lidar sensor which detects a position of each flange or a distance between the flanges; and a control unit which controls the traverse such that the wire delivered from the pulley at the unwinding point formed on the outer circumferential surface of the spool maintains a direction orthogonal to the axial direction.
Owner:HANWHA SOLUTIONS CORP

Vertical crusher and choke ring

To provide an economical vertical crusher that uses expensive wear-resistant steel plates. [Solution] A vertical crusher comprising a cylindrical shell with a cylindrical discharge ring installed at the bottom, a crushing mechanism attached to a rotating shaft at the center of the shell and the shell, and a choke ring installed between the lower flange of the shell and the upper flange of the discharge ring and the crushing mechanism, wherein the choke ring is composed of a plurality of choke ring pieces divided circumferentially between the upper flange and the lower flange, each choke ring piece is divided into an outer first member and an inner second member in the radial direction of the upper flange, and the first member and the second member are connected by a connecting part having an engaging part and an engaged part so as to move together in the radial direction.
Owner:KUBOTA CORP

T-shaped wiring clip structure for cabinet cable tool-free organization

ActiveCN224503726URivetFlange
The utility model relates to a T type wiring clip structure for cabinet cable tool-free arrangement, belong to the technical field of cabinet wire arrangement accessory, it includes support, pressing plate, adapter plate, pull rivet and bolt. Among them, the U type opening of support is equipped with the clamping slot, and the pull rivet is riveted in the support base plate, and the bolt passes through the screw hole of pull rivet and extends the flange side, and its rivet neck sleeve adapter plate and then spin pressure into the rivet head, form floating connection, the T type groove of pressing plate is interference joint adapter plate, and the guide surface of pressing plate and the inside surface of support slide adaptation, rotate bolt handle drive pressing plate along the support sliding, through the arc surface and compress the cable, the support clamping slot can be connected with the first slot of guide rail, realizes cable grouping tool-free fast positioning and adjustment.
Owner:WUXI KANGBEI ELECTRONICS EQUIP

A variable-diameter blowout preventer

ActiveCN224478914URealize variable diameter adaptationachieve securityButt jointBlowout preventer
The utility model discloses a variable diameter blowout preventer pipe relates to wellhead sealing blowout preventer technical field, and its technical key points include main pipeline, the top of main pipeline installs first variable diameter pipe, the top of first variable diameter pipe installs second variable diameter pipe, the top of second variable diameter pipe installs the top pipe, the utility model discloses when using, realized through variable diameter pipe group and realized the passage diameter adaptation, and pressure sensor and blowout preventer valve guarantee safety, with the help of flange, U -shaped clamping plate and locking assembly, realize quick firm connection with least three bolts, trapezoidal positioning structure realizes pipeline accurate butt joint, and the overall operation efficiency, safety and convenience are improved.
Owner:HUBEI NELSON PETROLEUM MASCH CO LTD

Device for projecting a light representation on board a vehicle

The invention relates to a lighting device (100a) for a vehicle, the lighting device comprising a light source (98) and an optical system (99) associated with the light source, the light source and the optical system being configured to project a light representation onto a surface of an environment of the vehicle. Specifically, the lighting device comprises a heat sink (10) comprising a shell (101) provided with a flange (102) and configured to receive the light source and the optical system, a support wall (11) able to be attached to the vehicle and configured to receive the heat sink, connection means arranged between the flange and the support wall in order to mount the heat sink in a tilting manner so as to allow an angle of inclination of the flange relative to the support to be modified, and adjustment means arranged between the support wall and the flange, the adjustment means being configured to modify the angle of inclination of the flange relative to the support.
Owner:VALEO VISION SA

Adjustment mechanism for adjusting torque of torsion spring, torsion spring assembly, storage apparatus, and vehicle

PCT designated stageWO2026130229A1Torsion springsWound springsAxial thrustTorsion spring
The present disclosure relates to an adjustment mechanism for adjusting the torque of a torsion spring, a torsion spring assembly, a storage apparatus, and a vehicle. The adjustment mechanism comprises: an axial element which comprises a shaft portion and a flange portion; an adjustment disc sleeved on the shaft portion, the adjustment disc comprising an engagement surface, wherein a first support leg of the torsion spring is capable of engaging with the engagement surface, the engagement surface comprises a plurality of engagement portions, and when the first support leg of the torsion spring engages with a different engagement portion, the angle of the first support leg relative to a second support leg is different; and an elastic thrust element which presses the adjustment disc against the flange portion of the axial element from a distal side of the adjustment disc. The axial element is provided with a limiting element, and the adjustment disc is provided with a mating limiting element. The limiting element and the mating limiting element are capable of engaging with each other under the action of an axial thrust force of the elastic thrust element, so as to prevent rotation of the adjustment disc. Moreover, the limiting element and the mating limiting element are capable of resisting the axial thrust force of the elastic thrust element under the action of an external force to disengage from each other, so as to allow rotation of the adjustment disc.
Owner:YANFENG INTERNATIONAL AUTOMOTIVE TECHNOLOGY CO LTD

Pipe flange machining device

This utility model belongs to the field of flange processing technology, and particularly relates to a pipe flange processing device. This utility model provides a pipe flange processing device, including: a cutting device with a cutting edge disposed on the flange end face; the cutting edge being used for cutting the flange end face; and a fixing device disposed inside the flange and connected to the cutting device, the fixing device being used to fix the cutting device to the flange. In this technical solution, the cutting device is fixed to the flange by the fixing device, so that the cutting edge on the cutting device rests against the flange end face, facilitating the cutting device to process the flange end face, thereby improving the flange processing efficiency.
Owner:ZHEJIANG HYHG ENVIRONMENTAL PROTECTION TECH CO LTD

Fixing system of wear elements in support elements of earth-moving machines by means of pins and retainers

ActiveCN117043424BClassical mechanicsRetainer
The invention relates to a fixing system for fixing a wear element (16) in a nose (19) of a support element of an earthmoving machine by means of a pin (7) which is accommodated in an opening of the wear element and in an opening (25) in the nose which is coaxial with the opening of the wear element. The system comprises a retaining piece (1) which is a sheet of material which has a flexible flange (3) which extends towards the path of the pin when it is introduced into the opening, blocking said path. The retaining piece is fixed to the wear element or to the nose. The flange is bent towards the direction of the pin when it is introduced into the opening. The pin has a blocking section (13) which has a step which is oriented such that the flange abuts against the step when the pin is attempted to be removed. In order to remove the pin, the pin must be rotated about its axis until the flange leaves the step and is arranged in a section in which the side surface of the pin extends continuously up to the terminal end (10) of the pin.
Owner:METALOGENIA RES & TECH SL

Spider car frame body riveting and welding tool

The utility model relates to the field of frame riveting and welding discloses a spider car frame body riveting and welding frock, including bottom plate and being located bottom plate respectively used for first positioning assembly of positioning frame body, second positioning assembly for positioning flange cylinder and third positioning assembly for positioning support plate, first positioning assembly includes the baffle of being located bottom plate one end and being located bottom plate one side near both ends side positioning seat, second positioning assembly includes the positioning frame of being connected with flange cylinder through bolt and being located bottom plate and being located frame body both sides support frame, third positioning assembly includes first positioning seat for positioning support plate both ends outside, at least one positioning pin of the through hole of going through upper and lower support plate for the end of limiting support plate and two respectively detachable positioning plate of being located first positioning seat. The utility model can realize the quick accurate positioning of flange cylinder and four support plates on the frame body, guarantees the precision of product, improves production efficiency.
Owner:CHANGSHA XINYAO MASCH MFG CO LTD

Axle for motor vehicle

The invention relates to an axle (1) for a motor vehicle comprising a suspension arm (2, 3) and an axle head (9), said axle head (9) comprising a welded assembly of at least a first element (17) and a second element (18) welded to each other, the axle head comprising three orifices (10, 11, 12) which are each intended to receive a fastening element for fixing a wheel support element to said axle head (9); one of the orifices (10) being provided in a first fixing flange (13) and the other two orifices (11, 12) being provided in a second fixing flange (14), the first element (17, 34) comprising an arch (19) which projects above the suspension arm (2), the arch (19) comprising two uprights (20, 21) connected to each other and welded to said suspension arm (2);one of the first and second fixing flanges (14) being integrated into the second element (18), said second element (18) being supported and welded against each of the two uprights (20, 21) of the arch (19). Figure to be published with the abbreviation: Fig. 2;
Owner:RENAULT SA

A motorcycle fore-end angle adjustment mechanism

ActiveCN119953482BMeet control sensitivityImprove high-speed stabilityVehicle frameControl theory
This invention relates to the field of motorcycle technology and discloses a motorcycle reach angle adjustment mechanism. The frame has detachable flange seats at both the top and bottom. A bearing ring is embedded inside the flange seat, and an oil seal ring is embedded between the bottom of the bearing ring and the flange seat. The frame bore is coaxial (coaxial with the outer circle of the flange seat). The inner circle of the flange (bearing press-fit surface) and the outer circle of the flange are machined to form an angle. Users can remove the upper and lower flange seats, rotate them 180°, and reassemble them into the frame as needed to adjust the reach angle. During use, the reach angle of the entire motorcycle can be adjusted according to the vehicle's usage requirements. This satisfies both the handling sensitivity required for extreme track riding and the high-speed stability needed for long-distance motorcycle touring, providing different driving experiences and enjoyment with a single motorcycle.
Owner:CHONGQING ZHANGXUE LOCOMOTIVE IND CO LTD

A double-flange limiting expansion joint

ActiveCN224454047UExpansion jointScrew thread
This utility model relates to the field of pipeline connection technology and discloses a double-flange limiting expansion joint, including a first connecting assembly, a second connecting assembly, and an expansion structure. The first and second connecting assemblies are connected by the expansion structure. The first connecting assembly includes a first pipe joint, and the second connecting assembly includes a second pipe joint. The expansion structure includes a slide groove, a guide rail, a threaded seat, a fixing block, a third sealing ring, and a fourth sealing ring. The second pipe joint is slidably connected to the first pipe joint through the slide groove, the guide rail, and the threaded seat has an internal threaded screw installed. The end of the screw is rotatably connected to the fixing block. The third sealing ring is fitted to the end of the second pipe joint that extends into the first pipe joint, and the fourth sealing ring is fitted to the end of the first pipe joint away from the first flange. This utility model utilizes the threaded engagement between the screw and the threaded seat to push the fixing block to move, thereby driving the second pipe joint to move, adapting to the length changes of the pipeline caused by thermal expansion and contraction, foundation settlement, etc.
Owner:GONGYI YUANTONG PIPE IND CO LTD

A flange buckle type double-ear automobile charging pile cable waterproof joint structure

ActiveCN224481449UScrew threadElectric cables
This utility model discloses a flange-type double-clamp car charging pile cable waterproof connector structure, including a flange body, which includes a flange plate and a connecting ring. The outer wall of the connecting ring has external threads, and the flange plate has a through hole in the middle. A waterproof ring is provided inside the connecting ring, and the lower end of the waterproof ring has an annular step. Clamping claws are fitted onto the outer wall of the waterproof ring. A snap-fit ​​type clamping cap for locking the clamping claws is threaded onto the external threads. Two snap-fit ​​type clamping ears are provided on the upper outer wall of the snap-fit ​​type clamping cap, and the two ends of the two snap-fit ​​type clamping ears are respectively connected by clamping ear fastening bolts. A waterproof gasket is provided under the flange plate. Multiple connecting holes are arranged circumferentially on the flange plate, and connecting bolts are inserted into the connecting holes. A fastening nut is provided at the lower end of each connecting bolt. This utility model has a simple structure and low production cost; it is convenient to connect and install with the charging pile box, has good sealing and waterproofing effects; and it facilitates cable fixing, preventing damage to the charging pile during charging.
Owner:GUANGZHOU JIAXIN ELECTRIC CO LTD

Binding apparatus and binding method for rotating target material

PendingCN122358143APipe supportClockwise
This application relates to the technical field of target bonding, specifically to a bonding device and method for a rotating target. The bonding device for the rotating target includes: a rotating worktable configured to rotate clockwise and counterclockwise, and adjustable within an angle range from horizontal to vertical; an air shaft, integrally connected to the rotating worktable via a flange, for inserting a stainless steel liner and for securing the liner by inflation; a guide rail; a screw jack mounted on the guide rail, adjustable in position along its extension direction; an tilting platform mounted on the screw jack, adjustable in height under its drive; and a pipe support fixedly mounted on the tilting platform for supporting the non-metallic sleeve target. This application simplifies the complexity of the large-size rotating target bonding device to the greatest extent, saving on device design costs, while also considering thermal and electrical conductivity.
Owner:SHENZHEN YOURONG NEW MATERIAL TECH CO LTD

Automatic water-saving safety valve and water-saving method thereof

The application relates to the technical field of water-saving valves, in particular to an automatic water-saving safety valve and a water-saving method thereof, which comprises an automatic water-saving safety valve body, the bottom end and one side of the automatic water-saving safety valve body are fixed with connecting pipes, one end of the connecting pipe is fixed with a flange one, one end of the connecting pipe is provided with a conveying pipe, one end of the conveying pipe is fixed with a flange, the flange and the flange one are abutted together, a connecting plate is inserted between the flange one and the flange, two plug pipes with different sizes are detachably arranged on the two sides of the connecting plate, and the two plug pipes are respectively inserted into the connecting pipe and the conveying pipe; beneficial effects are that: by arranging the plug pipes with different sizes on the two sides of the connecting plate, the conveying pipe and the connecting pipe with various pipe diameters can be matched, the installation cost and complexity are reduced; the automatic anti-falling clamping of the flange splicing is realized by using a screw rod, a stop block and an elastic assembly, tool-free quick connection is achieved, the sealing property is ensured, water leakage is effectively avoided, and water saving is realized.
Owner:JIANGSU YANGAO VALVE MFG CO LTD

A wind turbine generator segmented tower end stress concentration elimination structure

The application discloses a stress concentration eliminating structure at the end of a segmented tower of a wind turbine, which is arranged on a segmented tower barrel connected in a segmented manner, and a thickened part is arranged on the adjacent side wall of adjacent tower barrel segments, and a longitudinal flange connecting plate is arranged on the tower barrel segment, and the thickened part corresponds to the end of the longitudinal flange connecting plate. The application has the advantages that the thickness of the plate at the welding end of the longitudinal flange connecting plate and the tower body is increased to weaken the stress concentration at the position, and if the thickness of the whole plate is increased, the weight is greatly increased; the application realizes the local thickening of the end of the tower barrel segment through the thickened part, weakens the stress concentration, avoids the excessive weight increase of the tower barrel segment, and improves the reliability of the tower.
Owner:WINDEY ENERGY TECHNOLOGY GROUP CO LTD

Auxiliary device for welding flange and nozzle

ActiveCN224445137UFlangePhysics
This utility model discloses an auxiliary device for welding flanges and nozzles, including a support platform, a flange rotating assembly, and a nozzle rolling assembly. The flange rotating assembly is disposed above the support platform and includes two parallel rotating shafts with an adjustable distance between them. These shafts support the flange and are linked to it. The length direction of the rotating shafts is the same as the central axis direction of the flange. The nozzle rolling assembly is disposed on the side of the support platform and includes two rollers spaced apart with an adjustable distance between them. These rollers support the nozzle and are linked to it. The central axis direction of the rollers is the same as the central axis direction of the nozzle, ensuring that the central axis of the nozzle coincides with the central axis of the flange. This auxiliary device is applicable to welding nozzles and flanges of various specifications.
Owner:BAOTOU NORTH VENTURE

Accessory and insert for an oscillating power tool and combination of an oscillating power tool and an accessory

An oscillating power tool accessory comprising: a working portion and a mounting portion to be clamped between a clamping flange and a spindle head of an accessory holder. The mounting portion includes a first clamping face and a second clamping face opposite from the first clamping face, a spindle opening configured to accommodate a spindle of the tool. The first clamping face, the spindle opening and the second clamping face define a rim. An insert is disposed within the spindle opening and comprises a first section, a central section and a second section. The sections define a U-shaped channel that extends along a part of the spindle opening and in which the rim is arranged.
Owner:ROBERT BOSCH GMBH

A servo motor control box for a flange end face processing machine

The utility model relates to flange end face processing machine control box technical field discloses a kind of servo motor control box for flange end face processing machine, including box, adopt metal material to make, surface is equipped with corrosion-resistant coating, servo motor controller, be in box, with the servo motor electric connection of flange end face processing machine, heat dissipation component, including the heat dissipation hole of the heat conduction plate and box side portion that coincide servo motor controller, protective structure, including the sealing rubber sleeve of box inlet and outlet line mouth and surface dustproof cover, shockproof base, be in box bottom, contain elastic pad, connecting structure: box is detachably connected with flange end face processing machine main body by conversion sleeve. In the utility model, conversion sleeve is adapted to different specifications processing machine and servo motor, fast insertion type single electric wire simplifies connection, knob type speed regulator is convenient to operate, solve traditional motor connection complex, speed difficult control problem, improve adaptability and operating efficiency.
Owner:TIANJIN JIANGDA YANGSHENG ENG TECH CO LTD

Method for manufacturing formed product

PendingUS20260175274A1Metal rolling arrangementsManufactured formRoll forming
A method for manufacturing a formed product includes: (i) bending a plate-shaped workpiece, which extends in a length direction of the formed product and has at least one through part formed therethrough, by roll forming to form at least one ridge part on the workpiece such that the at least one ridge part overlaps the at least one through part; (ii) cutting the workpiece, which has the at least one ridge part formed thereon, along a cutting plane intersecting the length direction through the at least one through part, thereby obtaining an intermediate formed product having a main body part and at least one end piece part facing the at least one through part from a direction perpendicular to the length direction; and (iii) bending the at least one end piece part to form at least one flange part on the intermediate formed product, thereby obtaining the formed product.
Owner:FUTABA IND CO LTD

Corrosion-resistant large high-pressure flange of same kind of stainless steel and overlaying method thereof

This invention discloses a corrosion-resistant large high-pressure flange with a uniform stainless steel weld overlay, comprising a flange body. Both the lower and inner surfaces of the flange body are provided with weld overlay structures. Specifically: a first weld overlay transition layer is provided on the lower surface of the flange body, and a first weld overlay layer of the same material as the flange is provided above the first weld overlay transition layer; a second weld overlay transition layer is provided on the inner surface of the flange body, and a second weld overlay layer of the same material as the flange is provided above the second weld overlay transition layer; the first weld overlay transition layer and the second weld overlay transition layer are connected, and the first weld overlay layer and the second weld overlay layer are also connected. This invention, by providing a uniform material weld overlay layer on the flange sealing surface, eliminates the need for a weld transition layer, which helps to ensure the overall mechanical properties and corrosion resistance of the flange, effectively prevents stress corrosion, and makes quality more controllable.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1