CN112096985A - Structure of sealing flange and processing method thereof - Google Patents
Structure of sealing flange and processing method thereof Download PDFInfo
- Publication number
- CN112096985A CN112096985A CN202011071143.3A CN202011071143A CN112096985A CN 112096985 A CN112096985 A CN 112096985A CN 202011071143 A CN202011071143 A CN 202011071143A CN 112096985 A CN112096985 A CN 112096985A
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- annular plate
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- 238000007789 sealing Methods 0.000 title claims abstract description 160
- 238000003672 processing method Methods 0.000 title claims abstract description 10
- 238000003825 pressing Methods 0.000 claims abstract description 19
- 238000005553 drilling Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000005266 casting Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
- F16L23/22—Flanged joints characterised by the sealing means the sealing means being rings made exclusively of a material other than metal
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a structure of a sealing flange and a processing method thereof, and the structure comprises a connecting plate, an annular plate, a connector, an adjusting bolt, a fixing bolt, a flange body, a fixing nut and a bearing, wherein the outer side surface of the connecting plate is provided with a connecting hole, and the annular plate and one end of the connector are fixedly connected with the outer side surface of the connecting plate; a sealing groove is formed in the side face of the inner side of the connecting plate, sealing plates are fixedly connected to two sides of each sealing gasket, and the outer ends of the sealing plates are clamped in the sealing grooves; and a sealing ring is arranged on the outer side of the sealing plate, one end of the sealing ring is fixedly connected with the side surface of the sealing gasket, and the sealing ring is clamped inside the connecting hole. The outer side of the connecting pipe is provided with the annular plate, the annular plate can be screwed with the threaded hole by screwing the adjusting bolt, so that the pressing plate can be driven to move towards the outer side of the connecting pipe until the bottom end of the pressing plate and the surfaces of the connecting pipe and an external connecting piece are connected, and the connecting pipe and the external connecting piece can be fixed in an auxiliary mode.
Description
Technical Field
The invention relates to a structure of a sealing flange, in particular to a structure of a sealing flange and a processing method thereof.
Background
The sealing principle of the sealing flange is extremely simple: the two sealing surfaces of the bolt mutually press the flange gasket to form sealing, but the sealing is also damaged at the same time, and huge bolt acting force is required to be maintained in order to maintain the sealing; for this reason, the bolts are made larger and the larger bolts are matched with larger nuts, which means that bolts with larger diameters are required to create conditions for tightening the nuts; it is not known that the larger the diameter of the bolts, the more the applicable flange will become bent, the only way is to increase the wall thickness of the flange part, the great size and weight of the whole installation will be required, which becomes a special problem in offshore environments, since in this case weight is always a major concern for people; furthermore, the sealing flange is fundamentally an ineffective seal requiring 50% of the bolt load to be applied to the compression gasket, with only 50% of the load remaining to maintain compression.
Traditional sealing flange structure is all comparatively simple, and its leakproofness receives the influence of connecting hole easily when using, and sealing performance is comparatively general, and present sealing flange lacks simultaneously and carries out supplementary fixed knot structure to the installed part, takes place the obscission easily, and functional singleness. Therefore, a structure of a sealing flange and a processing method thereof are provided to solve the above problems.
Disclosure of Invention
In order to overcome the problems, the invention adopts the technical scheme that:
a structure of a sealing flange and a processing method thereof comprise a connecting plate, an annular plate, a connector, an adjusting bolt, a fixing bolt, a flange body, a fixing nut and a bearing;
the side surface of the outer side of the connecting plate is provided with a connecting hole, the outer side of the connecting plate is provided with an annular plate, the inner side of the annular plate is provided with a connector, and the annular plate and one end of the connector are fixedly connected with the side surface of the outer side of the connecting plate; a sealing groove is formed in the side face of the inner side of the connecting plate, a sealing gasket is arranged on the inner side of the connecting plate, sealing plates are fixedly connected to two sides of the sealing gasket, and the outer ends of the sealing plates are clamped in the sealing groove; a sealing ring is arranged on the outer side of the sealing plate, one end of the sealing ring is fixedly connected with the side face of the sealing gasket, and the sealing ring is clamped inside the connecting hole;
threaded holes are formed in the surface of the annular plate, the adjusting bolts are screwed with the threaded holes, a pressing plate is arranged on the inner side of the annular plate, the tail ends of the adjusting bolts penetrate through the inner portion of the annular plate, and the tail ends of the adjusting bolts are rotatably connected with the top end of the pressing plate through the bearings.
Furthermore, the number of the pressure plates is eight, the eight pressure plates are annularly distributed on the inner side of the annular plate, and the pressure plates are of arc structures.
Further, the sealing gasket is located between the two flange bodies, the number of the sealing rings is the same as that of the connecting holes, and the sealing rings are distributed on the side face of the sealing gasket in an annular mode.
Furthermore, the both sides of sealed pad all are equipped with the sealing washer, just the side opening is opened to the outer end of sealing washer.
Further, the fixing bolt penetrates through two adjacent side holes, and a fixing nut is screwed at the outer end of the fixing bolt.
Furthermore, the number of the connecting holes and the number of the side holes are six, the connecting holes are annularly distributed on the side face of the connecting plate, and the side holes are communicated with the connecting holes.
Further, the seal groove with the closing plate is the loop configuration, just the seal groove with the size phase-match of sealing plate.
Furthermore, the flange body comprises connecting plate, annular plate and connector, just two the flange body cooperation is used.
Further, the sealing gasket, the sealing ring and the sealing plate are made of rubber, and the sealing ring and the sealing plate are located on two sides of the sealing gasket.
Further, the processing method comprises the following steps:
firstly, fixing a connecting plate on the surface of drilling equipment, drilling holes on the side surface of the connecting plate through the drilling equipment to form connecting holes, welding one end of the connecting plate, which is positioned at the same side as the annular plate, on the outer side of the connecting plate, and then slotting the inner side surface of the connecting plate to form a sealing groove;
secondly, forming threaded holes in the surface of the annular plate, enabling the eight threaded holes to be annularly distributed in the surface of the annular plate, screwing the adjusting bolts with the threaded holes, and further enabling the tail ends of the adjusting bolts to be connected with the top end of the pressure plate through the bearings;
(III), seal pad, sealing washer and closing plate casting moulding are as an organic whole again, can place sealed pad between the two when two flange bodies link to each other, and the sealing washer can block inside the connecting hole this moment, and the closing plate can block inside the seal groove, has strengthened the leakproofness between two flange bodies.
The invention has the beneficial effects that: the invention provides a structure of a sealing flange with strong sealing capability and auxiliary fixing capability and a processing method thereof,
1. the annular plate is arranged on the outer side of the connecting pipe, and the adjusting bolt can be screwed with the threaded hole, so that the pressing plate can be driven to move towards the outer side of the connecting pipe until the bottom end of the pressing plate is connected with the surfaces of the connecting pipe and an external connecting piece, the connecting pipe and the external connecting piece can be fixed in an auxiliary mode, and the connectivity of the flange body is enhanced;
2. according to the invention, the sealing rings and the sealing plates are arranged on the two sides of the sealing gasket, the sealing gasket can be placed between the two flange bodies when the two flange bodies are connected, at the moment, the sealing rings can be clamped in the connecting holes, and the sealing plates can be clamped in the sealing grooves, so that the sealing property between the two flange bodies is enhanced;
3. the sealing gasket, the sealing ring and the sealing plate are formed into a whole in a thermoplastic mode, the size of the sealing gasket is matched with that of the inner side face of the flange, the sealing gasket is simple to process and install, and meanwhile the special structure of the sealing gasket can compensate the size of the surface of the flange body.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic overall perspective view of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a connection board according to an embodiment of the present invention;
FIG. 3 is a flange body attachment diagram of one embodiment of the present invention;
FIG. 4 is a schematic view of a gasket according to an embodiment of the present invention;
FIG. 5 is a drawing of a pressure plate and annular plate connection according to one embodiment of the invention.
In the figure: 1. the sealing device comprises a connecting plate, 2, a connecting hole, 3, an annular plate, 4, a connecting head, 5, an adjusting bolt, 6, a pressing plate, 7, a sealing groove, 8, a sealing gasket, 9, a sealing ring, 91, a side hole, 10, a sealing plate, 11, a fixing bolt, 12, a flange body, 13, a fixing nut, 14, a bearing, 15 and a threaded hole.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1-5, a structure of a sealing flange and a method for manufacturing the same includes a connecting plate 1, an annular plate 3, a connector 4, an adjusting bolt 5, a fixing bolt 11, a flange body 12, a fixing nut 13, and a bearing 14;
the side surface of the outer side of the connecting plate 1 is provided with a connecting hole 2, the outer side of the connecting plate 1 is provided with an annular plate 3, the inner side of the annular plate 3 is provided with a connector 4, and one end of the annular plate 3 and one end of the connector 4 are fixedly connected with the side surface of the outer side of the connecting plate 1; a sealing groove 7 is formed in the side face of the inner side of the connecting plate 1, a sealing gasket 8 is arranged on the inner side of the connecting plate 1, sealing plates 10 are fixedly connected to two sides of the sealing gasket 8, and the outer ends of the sealing plates 10 are clamped in the sealing groove 7; a sealing ring 9 is arranged on the outer side of the sealing plate 10, one end of the sealing ring 9 is fixedly connected with the side face of the sealing gasket 8, and the sealing ring 9 is clamped inside the connecting hole 2;
threaded holes 15 are formed in the surface of the annular plate 3, the adjusting bolts 5 are screwed with the threaded holes 15, a pressing plate 6 is arranged on the inner side of the annular plate 3, the tail ends of the adjusting bolts 5 penetrate into the annular plate 3, and the tail ends of the adjusting bolts 5 are rotatably connected with the top end of the pressing plate 6 through the bearings 14.
The number of the pressing plates 6 is eight, the eight pressing plates 6 are annularly distributed on the inner side of the annular plate 3, and the pressing plates 6 are of arc-shaped structures; the sealing gasket 8 is positioned between the two flange bodies 12, the number of the sealing rings 9 is the same as that of the connecting holes 2, and the sealing rings 9 are annularly distributed on the side surface of the sealing gasket 8; sealing rings 9 are arranged on two sides of the sealing gasket 8, and side holes 91 are formed in the outer ends of the sealing rings 9; the fixing bolts 11 penetrate through the two adjacent side holes 91, and fixing nuts 13 are screwed at the outer ends of the fixing bolts 11; the number of the connecting holes 2 and the number of the side holes 91 are six, the six connecting holes 2 are annularly distributed on the side surface of the connecting plate 1, and the side holes 91 are communicated with the connecting holes 2; the sealing groove 7 and the sealing plate 10 are both of annular structures, and the sizes of the sealing groove 7 and the sealing plate 10 are matched; the flange body 12 consists of a connecting plate 1, an annular plate 3 and a connector 4, and the two flange bodies 12 are matched for use; the sealing gasket 8, the sealing ring 9 and the sealing plate 10 are made of rubber materials, and the sealing ring 9 and the sealing plate 10 are located on two sides of the sealing gasket 8.
The processing method comprises the following steps:
firstly, fixing a connecting plate 1 on the surface of drilling equipment, drilling holes on the side surface of the connecting plate 1 through the drilling equipment to form a connecting hole 2, welding one end of the connecting pipe, which is at the same side as the annular plate 3, with the outer side of the connecting plate 1 because the connecting pipe and the annular plate 3 are both positioned on the outer side of the connecting plate 1, and then slotting the inner side surface of the connecting plate 1 to form a sealing groove 7;
secondly, forming threaded holes 15 in the surface of the annular plate 3, enabling the eight threaded holes 15 to be annularly distributed in the surface of the annular plate 3, screwing the adjusting bolts 5 with the threaded holes 15, and further enabling the tail ends of the adjusting bolts 5 to be connected with the top end of the pressure plate 6 through the bearing 14;
(III) seal pad 8, sealing washer 9 and closing plate 10 casting moulding become an organic whole again, can place seal pad 8 between the two when two flange bodies 12 link to each other, and sealing washer 9 can block inside connecting hole 2 this moment, and closing plate 10 can block inside seal groove 7, has strengthened the leakproofness between two flange bodies 12.
The invention has the advantages that:
1. the annular plate is arranged on the outer side of the connecting pipe, and the adjusting bolt can be screwed with the threaded hole, so that the pressing plate can be driven to move towards the outer side of the connecting pipe until the bottom end of the pressing plate is connected with the surfaces of the connecting pipe and an external connecting piece, the connecting pipe and the external connecting piece can be fixed in an auxiliary mode, and the connectivity of the flange body is enhanced;
2. according to the invention, the sealing rings and the sealing plates are arranged on the two sides of the sealing gasket, the sealing gasket can be placed between the two flange bodies when the two flange bodies are connected, at the moment, the sealing rings can be clamped in the connecting holes, and the sealing plates can be clamped in the sealing grooves, so that the sealing property between the two flange bodies is enhanced;
3. the sealing gasket, the sealing ring and the sealing plate are formed into a whole in a thermoplastic mode, the size of the sealing gasket is matched with that of the inner side face of the flange, the sealing gasket is simple to process and install, and meanwhile the special structure of the sealing gasket can compensate the size of the surface of the flange body.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A structure of a sealing flange is characterized in that: the flange comprises a connecting plate (1), an annular plate (3), a connector (4), an adjusting bolt (5), a fixing bolt (11), a flange body (12), a fixing nut (13) and a bearing (14);
the side surface of the outer side of the connecting plate (1) is provided with a connecting hole (2), the outer side of the connecting plate (1) is provided with an annular plate (3), the inner side of the annular plate (3) is provided with a connector (4), and one end of the annular plate (3) and one end of the connector (4) are fixedly connected with the side surface of the outer side of the connecting plate (1); a sealing groove (7) is formed in the side face of the inner side of the connecting plate (1), a sealing gasket (8) is arranged on the inner side of the connecting plate (1), sealing plates (10) are fixedly connected to two sides of the sealing gasket (8), and the outer ends of the sealing plates (10) are clamped inside the sealing groove (7); a sealing ring (9) is arranged on the outer side of the sealing plate (10), one end of the sealing ring (9) is fixedly connected with the side face of the sealing gasket (8), and the sealing ring (9) is clamped in the connecting hole (2);
threaded holes (15) are formed in the surface of the annular plate (3), the adjusting bolts (5) are screwed with the threaded holes (15), a pressing plate (6) is arranged on the inner side of the annular plate (3), the tail ends of the adjusting bolts (5) penetrate through the inner portion of the annular plate (3), and the tail ends of the adjusting bolts (5) are connected with the top end of the pressing plate (6) in a rotating mode through the bearings (14).
2. The structure of a sealing flange according to claim 1, wherein: the number of the pressing plates (6) is eight, the pressing plates (6) are annularly distributed on the inner side of the annular plate (3), and the pressing plates (6) are of arc-shaped structures.
3. The structure of a sealing flange according to claim 1, wherein: the sealing gasket (8) is located between the two flange bodies (12), the sealing rings (9) are the same as the connecting holes (2), and the sealing rings (9) are distributed on the side face of the sealing gasket (8) in an annular mode.
4. A sealing flange structure according to claim 3, wherein: the both sides of sealed pad (8) all are equipped with sealing washer (9), just side opening (91) have been opened to the outer end of sealing washer (9).
5. The structure of a sealing flange according to claim 4, wherein: the fixing bolt (11) penetrates through the adjacent two side holes (91), and a fixing nut (13) is screwed at the outer end of the fixing bolt (11).
6. The structure of a sealing flange according to claim 5, wherein: connecting hole (2) with the figure of side opening (91) is six, six connecting hole (2) are the annular and distribute connecting plate (1) side, just side opening (91) with connecting hole (2) communicate each other.
7. The structure of a sealing flange according to claim 1, wherein: the sealing groove (7) and the sealing plate (10) are both of an annular structure, and the sealing groove (7) is matched with the sealing plate (10) in size.
8. The structure of a sealing flange according to claim 1, wherein: the flange body (12) is composed of a connecting plate (1), an annular plate (3) and a connector (4), and the two flange bodies (12) are matched for use.
9. The structure of a sealing flange according to claim 1, wherein: the sealing gasket (8), the sealing ring (9) and the sealing plate (10) are made of rubber materials, and the sealing ring (9) and the sealing plate (10) are located on two sides of the sealing gasket (8).
10. A method of processing using the method of any of claims 1 to 10, wherein: the processing method comprises the following steps:
firstly, fixing a connecting plate (1) on the surface of drilling equipment, drilling the side surface of the connecting plate (1) through the drilling equipment to form a connecting hole (2), welding one end of the connecting pipe, which is positioned at the same side as the annular plate (3), with the outer side of the connecting plate (1) because the connecting pipe and the annular plate (3) are positioned at the outer side of the connecting plate (1), and then slotting the inner side surface of the connecting plate (1) to form a sealing groove (7);
secondly, forming threaded holes (15) in the surface of the annular plate (3) to enable the eight threaded holes (15) to be distributed on the surface of the annular plate (3) in an annular mode, screwing the adjusting bolts (5) with the threaded holes (15), and further enabling the tail ends of the adjusting bolts (5) to be connected with the top end of the pressure plate (6) through the bearings (14);
(III), seal pad (8), sealing washer (9) and closing plate (10) casting moulding become an organic whole again, can place sealed pad (8) between the two when two flange bodies (12) link to each other, sealing washer (9) can block inside connecting hole (2) this moment, and closing plate (10) can block inside seal groove (7), has strengthened the leakproofness between two flange bodies (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011071143.3A CN112096985A (en) | 2020-10-09 | 2020-10-09 | Structure of sealing flange and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011071143.3A CN112096985A (en) | 2020-10-09 | 2020-10-09 | Structure of sealing flange and processing method thereof |
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| CN112096985A true CN112096985A (en) | 2020-12-18 |
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| CN202011071143.3A Pending CN112096985A (en) | 2020-10-09 | 2020-10-09 | Structure of sealing flange and processing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113764243A (en) * | 2021-09-06 | 2021-12-07 | 核工业西南物理研究院 | Separated superconducting magnet flange, superconducting magnet and gyrotron assembly method |
| CN113983255A (en) * | 2021-10-29 | 2022-01-28 | 山东顺发重工有限公司 | Multiple sealed flange forging |
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| CN210461853U (en) * | 2019-07-31 | 2020-05-05 | 新疆西部油气管道配件制造有限公司 | Valve sealing connecting flange |
| CN211423188U (en) * | 2019-12-03 | 2020-09-04 | 天津市轩安特科技有限公司 | Machine tool oil cylinder bearing seat |
| CN211550834U (en) * | 2019-12-25 | 2020-09-22 | 杭州彰钰不锈钢有限公司 | Stainless steel groove flange |
| CN213420222U (en) * | 2020-10-09 | 2021-06-11 | 张家港华日法兰有限公司 | Structure of sealing flange |
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| CN113764243A (en) * | 2021-09-06 | 2021-12-07 | 核工业西南物理研究院 | Separated superconducting magnet flange, superconducting magnet and gyrotron assembly method |
| CN113983255A (en) * | 2021-10-29 | 2022-01-28 | 山东顺发重工有限公司 | Multiple sealed flange forging |
| CN113983255B (en) * | 2021-10-29 | 2023-09-22 | 山东顺发重工有限公司 | Multiple sealing flange forging |
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