CN114407373A - Flexible joint forming tool - Google Patents
Flexible joint forming tool Download PDFInfo
- Publication number
- CN114407373A CN114407373A CN202111435611.5A CN202111435611A CN114407373A CN 114407373 A CN114407373 A CN 114407373A CN 202111435611 A CN202111435611 A CN 202111435611A CN 114407373 A CN114407373 A CN 114407373A
- Authority
- CN
- China
- Prior art keywords
- flexible joint
- bottom plate
- upper cover
- shell
- die
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
- B29C65/7805—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features
- B29C65/7814—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features in the form of inter-cooperating positioning features, e.g. tenons and mortises
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
- B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/748—Machines or parts thereof not otherwise provided for
- B29L2031/749—Motors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
The invention discloses a flexible joint forming tool, which relates to the technical field of flexible joint processing equipment and comprises an external frame and a forming device, wherein the external frame comprises a bottom plate, a hydraulic oil top, a supporting plate and an upper cover which are sequentially arranged from bottom to top, the bottom plate and the upper cover are connected through a plurality of limiting columns, the forming device is arranged between the supporting plate and the upper cover and comprises a top die, a bottom die and a heating sleeve, a forming cavity is formed among the bottom die, the heating sleeve and the top die, and the forming cavity is used for placing a flexible joint. Through the arrangement of the invention, the flexible joint forming tool is simple in structure and convenient to disassemble and combine; the invention provides the rubber molding pressure by using a hydraulic jack mode, and adopts a mode of wrapping the electric heating sleeve outside the shell, so that the shell, the inner extension pipe and the rubber elastomer of the product steel structure are vulcanized together.
Description
Technical Field
The invention relates to the technical field of flexible joint processing equipment, in particular to a flexible joint forming tool.
Background
The flexible jet pipe has wide application prospect, the strong deflection capability of the flexible jet pipe enables the flexible jet pipe to be particularly suitable for various solid rocket engines with high requirements on maneuverability and overload capability, and the missile based on the flexible jet pipe is expected to be applied to large strategic missiles and has great application prospect in the fields of small-sized anti-aircraft anti-pilot missiles, ship-borne missiles, submarine-launched missiles and other tactical missiles.
The flexible joint is used as a core component of the flexible spray pipe, is a non-rigid pressure-bearing sealing connecting piece, and is a complete component formed by alternately bonding a plurality of concentric annular spherical elastic pieces (rubber) and reinforcing pieces (steel or composite materials) together and respectively provided with flanges at the front and the rear. The flexible joint has very high axial compression rigidity and very low bending rigidity, so that when the flexible joint is subjected to the action of very high combustion chamber pressure, the flexible joint only generates very small axial displacement, and under the action of smaller lateral actuating force, the flexible joint can generate larger shearing deformation, so that the spray pipe swings, and thrust vector control is realized.
Because the flexible joint is formed by mutually overlapping the reinforcing part and the elastic part, after the flexible joint is assembled, the parallelism of the upper end surface and the lower end surface of the flexible joint is required to be not more than 0.06mm, and the coaxiality of the upper end surface and the lower end surface of the flexible joint is not more than 0.06mm, so that the manufacturing uniformity of each layer of elastic part is also required to be ensured while the precision of the reinforcing part is ensured, otherwise, the stress distribution in the flexible joint is deteriorated, the control precision is influenced, and the missile cannot accurately hit a target. The structure of the existing flexible joint forming tool is complex, and errors are easily generated in the machining process, so that the problem of urgently solving is to simplify the structure of the flexible joint forming tool.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a flexible joint forming tool.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a flexible joint shaping frock, includes, external frame and forming device, external frame includes bottom plate, hydraulic oil top, backup pad and the upper cover that sets gradually from bottom to top, bottom plate and upper cover are through a plurality of spacing post connections, be provided with forming device between backup pad and the upper cover, forming device includes top mould, die block and heating jacket, form the shaping chamber between die block, heating jacket and the top mould, the shaping chamber is used for placing the flexible joint.
Furthermore, the limiting column is a screw rod, the limiting column is in threaded connection with the bottom plate, a through hole matched with the limiting column is formed in the upper cover, and the limiting column penetrates through the through hole and is in threaded connection with the nut.
Furthermore, the limiting columns are arranged on the bottom plate in an annular array by taking the forming device as a center.
Furthermore, the hydraulic oil top is a plurality of, even distribution in on the bottom plate, hydraulic oil top bottom fixed connection in the up end of bottom plate, it is a plurality of hydraulic oil top portion forms the plane for place the backup pad.
Furthermore, a heat insulation plate is arranged between the supporting plate and the forming device, and a bottom die is arranged on the upper end face of the heat insulation plate.
Furthermore, the heat insulation board is internally provided with a heat insulation material, and the heat insulation material comprises one or more of asbestos, rock wool, silicate, phenolic resin and fiber cloth.
Further, die block intermediate position department is provided with inside heating element, inside heating element and flexible joint internal diameter looks adaptation for extend to in the flexible joint.
Still further, the flexible joint includes, pipe fitting, rubber elastomer and shell, the pipe fitting runs through upper cover and top mould to extend to the shaping intracavity, the pot head that the pipe fitting extends to the shaping chamber is equipped with rubber elastomer, the rubber elastomer overcoat is equipped with the shell, the shell outer wall with the laminating of heating jacket inner wall.
Compared with the prior art, the invention has the beneficial effects that:
through the arrangement of the invention, the flexible joint forming tool is simple in structure and convenient to disassemble and combine; the invention provides the rubber molding pressure by using a hydraulic jack (oil jack) mode, and the shell of the product steel structure, the internal extension pipe and the rubber elastomer are vulcanized together by adopting a mode of wrapping the electric heating sleeve outside the shell.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a cross-sectional view of a flexible joint forming tool;
FIG. 2 is a schematic view of an overall structure of a flexible joint forming tool;
fig. 3 is a schematic view of an internal structure of a flexible joint forming tool.
In the figure: 1. a limiting rod; 2. an upper cover; 3. carrying out top die; 4. an internal heating assembly; 5. a top plate; 6. bottom die; 7. a heat insulation plate; 8. a support plate; 9. hydraulic oil jacking; 10. a base plate; 11. a pipe fitting; 12. a rubber elastomer; 13. a housing; 14. and (4) heating the sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-3, a flexible joint forming tool comprises an outer frame and a forming device;
the external frame comprises a bottom plate 10, a hydraulic oil top 9, a support plate 8 and an upper cover 2 which are sequentially arranged from bottom to top, wherein the bottom plate 10 is disc-shaped, the bottom of the bottom plate is provided with an annular support, and the top of the bottom plate is of a plane structure and is used for mounting the hydraulic oil top 9;
threaded holes are formed in the position, close to the edge, of the bottom plate 10 and are used for being matched with external threads on the limiting columns, and preferably, six to twelve threaded holes are formed and are distributed on the bottom plate 10 in an annular array;
the hydraulic oil jacks 9 are uniformly distributed on the bottom plate 10, the bottom of each hydraulic oil jack 9 is fixedly connected to the upper end face of the bottom plate 10, the tops of the hydraulic oil jacks 9 form a plane for placing the support plate 8, and preferably, four hydraulic oil jacks 9 are arranged on the bottom plate 10 in an annular array;
the supporting plate 8 is of a cylindrical structure, the side wall of the supporting plate 8 abuts against a limiting column, the supporting position is limited through a plurality of limiting columns, the position is prevented from being deviated in the ascending process of the supporting plate 8, the bottom plate 10 is connected with the upper cover 2 through the limiting columns, the space between the supporting plate 8 and the upper cover 2 is used for placing a forming device, specifically, the limiting columns are screw rods, the limiting columns are in threaded connection with the bottom plate 10, through holes matched with the limiting columns are formed in the upper cover 2, the limiting columns penetrate through the through holes and are in threaded connection with nuts placed on the upper end face of the upper cover 2, the installation and the disassembly of the limiting columns are facilitated through the arranged through holes and the arranged nuts, and the distance between the upper cover 2 and the bottom plate 10 is limited;
a heat insulation plate 7 is arranged between the supporting plate 8 and the forming device, a bottom die 6 is placed on the upper end face of the heat insulation plate 7, the bottom die 6 is of a multi-stage structure, the bottom of the bottom die is of a flange structure and is used for supporting the shell 13, the upper portion of the bottom die is of a cylindrical structure, the upper end face of the cylindrical structure is matched (attached) with the lower end face of the rubber elastic body 12, a top plate 5 is arranged in the middle of the upper portion of the bottom die, and a hole is formed in the middle of the top plate 5 and used for placing an internal heating assembly; the heat insulation board 7 is internally provided with a heat insulation material which comprises one or more of asbestos, rock wool, silicate, phenolic resin and fiber cloth;
the flexible joint includes, pipe fitting 11, rubber elastomer 12 and shell 13, and wherein the lower extreme of pipe fitting 11 is the hemisphere structure, and inside is provided with the hemisphere cavity, and the hemisphere structure of pipe fitting 11 lower extreme runs through upper cover 2 and top mould 3 to extend to the shaping intracavity, and the pot head that pipe fitting 11 extends to the shaping chamber is equipped with rubber elastomer 12, and the 12 overcoat of rubber elastomer is equipped with shell 13, and the outer wall of shell 13 laminates with 14 inner walls of heating jacket mutually.
The forming device comprises a top die 3, a bottom die 6 and a heating sleeve 14, forming cavities are formed among the bottom die 6, the heating sleeve 14 and the top die 3 and used for placing the lower end of the pipe fitting 11 in the flexible joint, the rubber elastic body 12 and the shell 13, wherein the outer wall of the shell 13 is matched (attached) with the inner wall of the heating sleeve 14, the shell 13 is of a steel structure, the shell 13 can be uniformly heated by arranging the heating sleeve 14 into a structure matched with the shell 13, and when heating is carried out, heat generated by the heating sleeve 14 is transferred to the rubber elastic body 12 through the shell 13 of the steel structure, so that the pipe fitting 11, the rubber elastic body 12 and the shell 13 form an integral structure;
the bottom die 6 intermediate position department is provided with inside heating element 4, inside heating element 4 and the internal diameter looks adaptation of the pipe fitting 11 in the flexible joint, extend inside the pipe fitting 11 when using, with heat transfer to rubber elastomer 12, through the combined action of inside heating element 4 and heating jacket 14, improve the softening speed of rubber elastomer 12, inside heating element 4 can be oil pipe in other embodiments, be provided with the heater strip in the oil pipe to it has fluid to fill.
The working principle and the using process of the invention are as follows:
when the pipe fitting positioning device is used, firstly, the bottom plate 10 is arranged, the hydraulic oil top 9 is installed on the upper end face of the bottom plate 10 after the bottom plate 10 is arranged, the supporting plate 8 is placed on the top face of the hydraulic oil top 9, the supporting plate 8 can be directly placed on the hydraulic oil top 9 or fixedly connected to the hydraulic oil top 9 through bolts, the heat insulation plate 7 and the bottom die 6 are placed after the supporting plate 8 is placed, then the pipe fitting 11, the rubber elastic body 12, the shell 13 and the heating sleeve 14 are sequentially placed, and in the process, the internal heating assembly 4 (oil pipe) in the middle of the top die 3 positions the pipe fitting 11; finally, the top die 3 and the upper cover 2 are placed, the limiting rod 1 is installed to fix and position the whole structure, the pipe fitting 11, the rubber elastic body 12 and the shell 13 are tightly attached together, and after the structure is installed, the heating sleeve and the internal heating assembly are started, so that the shell of the steel structure, the internal extension pipe and the rubber elastic body are vulcanized together.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a flexible joint shaping frock, its characterized in that includes, external frame and forming device, external frame includes bottom plate, hydraulic oil top, backup pad and the upper cover that sets gradually from bottom to top, bottom plate and upper cover are through a plurality of spacing post connections, be provided with forming device between backup pad and the upper cover, forming device includes top mould, die block and heating jacket, form the shaping chamber between die block, heating jacket and the top mould, the shaping chamber is used for placing flexible joint, the backup pad with be provided with the heat insulating board between the die block.
2. The flexible joint forming tool according to claim 1, wherein the limiting column is a screw, the limiting column is in threaded connection with the bottom plate, a through hole matched with the limiting column is formed in the upper cover, and the limiting column penetrates through the through hole and is in threaded connection with a nut.
3. The flexible joint forming tool according to claim 1, wherein the limiting columns are arranged on the bottom plate in an annular array with the forming device as a center.
4. The flexible joint forming tool according to claim 1, wherein the hydraulic oil tops are distributed on the bottom plate uniformly, the bottoms of the hydraulic oil tops are fixedly connected to the upper end face of the bottom plate, and a plane is formed at the tops of the hydraulic oil tops and used for placing a supporting plate.
5. The flexible joint forming tool according to claim 1, wherein a thermal insulation material is arranged inside the thermal insulation plate, and the thermal insulation material comprises one or more of asbestos, rock wool, silicate, phenolic resin and fiber cloth.
6. The flexible joint forming tool according to claim 1, wherein an internal heating assembly is arranged in the middle of the bottom die and is matched with the inner diameter of the flexible joint, and the internal heating assembly is used for extending into the flexible joint.
7. The tool for forming the flexible joint according to any one of claims 1 to 6, wherein the flexible joint comprises a pipe, a rubber elastic body and a shell, the pipe penetrates through the upper cover and the top die and extends into the forming cavity, one end, extending to the forming cavity, of the pipe is sleeved with the rubber elastic body, the shell is sleeved outside the rubber elastic body, and the outer wall of the shell is attached to the inner wall of the heating shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111435611.5A CN114407373B (en) | 2021-11-29 | 2021-11-29 | Flexible joint forming tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111435611.5A CN114407373B (en) | 2021-11-29 | 2021-11-29 | Flexible joint forming tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114407373A true CN114407373A (en) | 2022-04-29 |
| CN114407373B CN114407373B (en) | 2023-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111435611.5A Active CN114407373B (en) | 2021-11-29 | 2021-11-29 | Flexible joint forming tool |
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| CN (1) | CN114407373B (en) |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB527406A (en) * | 1939-04-11 | 1940-10-08 | Arthur Edward Peel Milner | Improvements in and relating to appliances for moulding balls and similar hollow rubber articles |
| GB952739A (en) * | 1959-08-29 | 1964-03-18 | Dunlop Rubber Co | Improvements relating to flexible couplings for pipes |
| GB952738A (en) * | 1959-08-29 | 1964-03-18 | Dunlop Rubber Co | Improvements relating to flexible couplings for pipes |
| GB1016060A (en) * | 1963-10-09 | 1966-01-05 | Metalastik Ltd | Improvements in or relating to the manufacture of flexible joints or bearings |
| FR2339125A1 (en) * | 1976-01-20 | 1977-08-19 | Tubest Sa | Flexible knuckle joint for vehicle exhaust pipes - is made by pressing two pipes into shape one inside other |
| US4708758A (en) * | 1986-09-25 | 1987-11-24 | Morton Thiokol, Inc. | Method of making a flexible bearing |
| RU2118732C1 (en) * | 1996-11-26 | 1998-09-10 | Открытое акционерное общество Научно-производственное объединение "Искра" | Method of manufacture of movable joint |
| JPH11325358A (en) * | 1998-05-11 | 1999-11-26 | Toyo Tire & Rubber Co Ltd | Flexible joint and manufacture thereof |
| US20050167978A1 (en) * | 2004-01-29 | 2005-08-04 | Moses Charles J. | High temperature flexible pipe joint |
| US20090212558A1 (en) * | 2008-02-25 | 2009-08-27 | Oil States Industries, Inc. | Pressure isolation system for flexible pipe joints |
| US20090212557A1 (en) * | 2008-02-25 | 2009-08-27 | Oil States Industries, Inc. | Two-element tandem flexible joint |
| CN202702630U (en) * | 2012-06-14 | 2013-01-30 | 湖北三江航天江北机械工程有限公司 | Hot bonding forming device for flexible joint of swing spray pipe |
| CN102918289A (en) * | 2010-05-28 | 2013-02-06 | 卡特彼勒公司 | Seal assembly and method for forming a seal assembly |
| CN104552802A (en) * | 2015-01-29 | 2015-04-29 | 北京航空航天大学 | Flexible joint manufacturing mould device |
| US20160348819A1 (en) * | 2015-05-29 | 2016-12-01 | Oil States Industries, Inc. | Flexible pipe joint having an annular flexible boot thermally or chemically insulating an annular elastomeric flexible element |
| CN106903901A (en) * | 2017-01-23 | 2017-06-30 | 湖北三江航天江北机械工程有限公司 | For the Low temperature-resistanflexible flexible joint forming method of solid propellant rocket |
| US20170198845A1 (en) * | 2014-08-20 | 2017-07-13 | Lord Corporation | Flexible joint and method of manufacturing flexible joint |
| CN112339211A (en) * | 2020-11-10 | 2021-02-09 | 湖北三江航天江北机械工程有限公司 | Flexible joint forming method |
| CN216267690U (en) * | 2021-11-29 | 2022-04-12 | 中国海洋石油集团有限公司 | Flexible joint forming tool |
-
2021
- 2021-11-29 CN CN202111435611.5A patent/CN114407373B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB527406A (en) * | 1939-04-11 | 1940-10-08 | Arthur Edward Peel Milner | Improvements in and relating to appliances for moulding balls and similar hollow rubber articles |
| GB952739A (en) * | 1959-08-29 | 1964-03-18 | Dunlop Rubber Co | Improvements relating to flexible couplings for pipes |
| GB952738A (en) * | 1959-08-29 | 1964-03-18 | Dunlop Rubber Co | Improvements relating to flexible couplings for pipes |
| GB1016060A (en) * | 1963-10-09 | 1966-01-05 | Metalastik Ltd | Improvements in or relating to the manufacture of flexible joints or bearings |
| FR2339125A1 (en) * | 1976-01-20 | 1977-08-19 | Tubest Sa | Flexible knuckle joint for vehicle exhaust pipes - is made by pressing two pipes into shape one inside other |
| US4708758A (en) * | 1986-09-25 | 1987-11-24 | Morton Thiokol, Inc. | Method of making a flexible bearing |
| RU2118732C1 (en) * | 1996-11-26 | 1998-09-10 | Открытое акционерное общество Научно-производственное объединение "Искра" | Method of manufacture of movable joint |
| JPH11325358A (en) * | 1998-05-11 | 1999-11-26 | Toyo Tire & Rubber Co Ltd | Flexible joint and manufacture thereof |
| US20050167978A1 (en) * | 2004-01-29 | 2005-08-04 | Moses Charles J. | High temperature flexible pipe joint |
| US20090212558A1 (en) * | 2008-02-25 | 2009-08-27 | Oil States Industries, Inc. | Pressure isolation system for flexible pipe joints |
| US20090212557A1 (en) * | 2008-02-25 | 2009-08-27 | Oil States Industries, Inc. | Two-element tandem flexible joint |
| CN102918289A (en) * | 2010-05-28 | 2013-02-06 | 卡特彼勒公司 | Seal assembly and method for forming a seal assembly |
| CN202702630U (en) * | 2012-06-14 | 2013-01-30 | 湖北三江航天江北机械工程有限公司 | Hot bonding forming device for flexible joint of swing spray pipe |
| US20170198845A1 (en) * | 2014-08-20 | 2017-07-13 | Lord Corporation | Flexible joint and method of manufacturing flexible joint |
| CN104552802A (en) * | 2015-01-29 | 2015-04-29 | 北京航空航天大学 | Flexible joint manufacturing mould device |
| US20160348819A1 (en) * | 2015-05-29 | 2016-12-01 | Oil States Industries, Inc. | Flexible pipe joint having an annular flexible boot thermally or chemically insulating an annular elastomeric flexible element |
| CN106903901A (en) * | 2017-01-23 | 2017-06-30 | 湖北三江航天江北机械工程有限公司 | For the Low temperature-resistanflexible flexible joint forming method of solid propellant rocket |
| CN112339211A (en) * | 2020-11-10 | 2021-02-09 | 湖北三江航天江北机械工程有限公司 | Flexible joint forming method |
| CN216267690U (en) * | 2021-11-29 | 2022-04-12 | 中国海洋石油集团有限公司 | Flexible joint forming tool |
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| Publication number | Publication date |
|---|---|
| CN114407373B (en) | 2023-09-01 |
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