CN119846795A - Optical fiber penetrating piece preparation method and optical fiber penetrating piece sealing structure - Google Patents
Optical fiber penetrating piece preparation method and optical fiber penetrating piece sealing structure Download PDFInfo
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- CN119846795A CN119846795A CN202510318296.XA CN202510318296A CN119846795A CN 119846795 A CN119846795 A CN 119846795A CN 202510318296 A CN202510318296 A CN 202510318296A CN 119846795 A CN119846795 A CN 119846795A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4442—Cap coupling boxes
- G02B6/4444—Seals
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4427—Pressure resistant cables, e.g. undersea cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/4436—Heat resistant
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention provides a preparation method of an optical fiber penetrating piece, which comprises the steps of S1, fixing an optical fiber in a casting mold, putting corresponding metal materials into the casting mold together, S2, heating the optical fiber and the metal materials synchronously, and waiting for solidification of the metal materials after the metal materials are melted and wrapped on the optical fiber. The invention also discloses a sealing structure of the optical fiber penetrating piece, wherein the optical fiber penetrating piece is manufactured by adopting the manufacturing method, the sealing structure comprises a convex block positioned in the middle of the penetrating piece, and further comprises a pipe bearing and a pressing cap, the pipe bearing and the pressing cap are respectively independent of two sides of the convex block, and the other end of the pressing cap is matched with the pipe bearing and is used for extruding the convex block to enable the convex block to be attached and sealed with the pipe bearing. Compared with the conventional optical fiber penetrating piece, the sealing effect of the optical fiber penetrating piece is far more than that of the optical fiber penetrating piece by forming a thicker metal layer outside the optical fiber, and the optical fiber is not easy to break when the optical fiber is wrapped by the metal material in a melting way by heating the optical fiber and the metal material synchronously.
Description
Technical Field
The invention relates to the technical field of optical fiber penetrating members, in particular to a preparation method of an optical fiber penetrating member and a sealing structure of the optical fiber penetrating member.
Background
Under the high-temperature and high-pressure condition, the application of the optical fiber measurement technology has a huge application scene, but due to the influence of the coating layer and the strength of the optical fiber, a penetrating piece which is excessive from high temperature and high pressure to normal temperature and normal pressure and can be sealed is lacking.
The conventional optical fiber penetrating piece is mainly sealed with the optical fiber by adopting modes of gluing, epoxy resin and the like, but the penetrating piece cannot be used for a long time under the conditions that the temperature is more than 350 ℃ and the internal-external pressure difference is more than 10 MPa.
Disclosure of Invention
The invention mainly aims to provide a preparation method of an optical fiber penetrating piece and a sealing structure of the optical fiber penetrating piece, wherein the optical fiber penetrating piece has good sealing effect and can be used for a long time under high temperature and high pressure conditions.
In order to achieve the above purpose, the technical scheme of the invention is realized by a method for preparing an optical fiber penetrating piece, comprising the following steps:
S1, fixing an optical fiber in a casting mold, and placing corresponding metal materials into the casting mold together;
S2, synchronously heating the optical fiber and the metal material, and waiting for solidification of the metal material after the metal material melts and wraps the optical fiber.
Further, after S2, the method further includes:
And S3, machining two ends of the solidified metal material to obtain the connector connected with the corresponding optical fiber instrument.
Further, the thickness of the solidified metal material is greater than 1mm.
Further, in S2, the optical fiber and the metal material located in the casting mold are heated by heating the casting mold.
Further, the casting mold is a graphite mold, and the heating mode is electric vortex heating.
Further, when the casting mold is heated, the inside of the casting mold is in a vacuum state.
Further, in S1, both ends of the optical fiber are protruded from the casting mold.
Further, the metal material is one of red copper, nickel-based stainless steel, 316 stainless steel or 321 stainless steel.
Further, the casting mould is divided into a lower mould and an upper mould, a first casting groove is formed in the middle of the lower mould, a second casting groove is formed in the position of the upper mould corresponding to the first casting groove, the first casting groove and the second casting groove are matched to form a casting cavity, the inner contour of the casting cavity is matched with the outer contour of the penetrating piece, a shrinkage fluid supplementing hole communicated with the first casting groove is formed in the upper mould, and a metal material for melting fluid supplementing is placed in the shrinkage fluid supplementing hole.
Further, the two ends of the upper die are provided with penetrating grooves for the optical fibers to pass through, the upper die is further provided with a pressing part, and the optical fibers are fixed in a pressing mode.
Further, the pressing component comprises a pressing groove which is arranged at the position of the corresponding through groove of the upper die and is communicated with the through groove, a pressing block is arranged in the pressing groove, the pressing component further comprises a screw hole which penetrates through the pressing groove and the outer side of the upper die, a screw rod is in spiral fit in the screw hole, and the end part of the screw rod is connected with the pressing block.
Further, the casting mold is heated in a horizontal posture, the upper mold is positioned above the lower mold, and the shrinkage liquid supplementing hole is positioned at the top of the casting cavity and is communicated with the casting cavity.
Further, the optical fiber and the metal material are synchronously heated by adopting a constant temperature heating mode, wherein the temperature rise rate of the constant temperature heating comprises a rapid temperature rise stage, a transition stage, a melting stage and a step temperature reduction stage, wherein:
A rapid temperature rise stage, wherein the temperature is rapidly increased from room temperature to a temperature lower than the melting point of the corresponding metal;
In the transition stage, after the rapid temperature rising stage, maintaining the constant temperature for not less than 5 minutes, then gradually rising the temperature to be higher than the melting point temperature of the corresponding metal, and in the temperature rising process, maintaining the constant temperature for not less than 5 minutes at the temperature of 100 ℃ in each rising period;
the melting stage is maintained at a constant temperature higher than the melting point of the corresponding metal until the metal material is completely melted and the optical fiber is wrapped;
And in the step cooling stage, cooling in a gradient manner until the room temperature is reached.
The optical fiber penetrating piece sealing structure is manufactured by the manufacturing method, and comprises a protruding block positioned in the middle of the penetrating piece, wherein arc chamfer angles are arranged on two sides of the protruding block, and are annularly distributed on two sides of the protruding block;
The pipe bearing and the pressing cap are independent of two sides of the lug respectively, the pipe bearing is hollow, one end of the corresponding lug of the pipe bearing is provided with a conical surface and is used for being contacted and attached to the corresponding circular arc chamfer, one end of the penetrating piece penetrates through the pressing cap, one end of the corresponding lug of the pressing cap is contacted with the lug, the other end of the pressing cap is matched with the pipe bearing and is used for extruding the lug, and the lug is attached and sealed with the pipe bearing.
Further, one end of the corresponding press cap of the pipe bearing is provided with external threads, and the inner side of the press cap is provided with internal threads matched with the external threads.
The beneficial effects of the invention are as follows:
Compared with the conventional optical fiber penetrating piece, the optical fiber penetrating piece is directly manufactured on the corresponding optical fiber, has a far-exceeding sealing effect, has excellent high-temperature and high-pressure resistance, and enables the temperatures of the optical fiber and the metal material to be similar in a mode of synchronously heating the optical fiber and the metal material, so that the optical fiber is not easy to break when the metal material melts and wraps the optical fiber.
Drawings
In the drawings:
FIG. 1 is an overall view of a casting mold according to the present invention;
FIG. 2 is a half cross-sectional view of a casting mold according to the present invention;
FIG. 3 is a half cross-sectional view of a fiber optic feedthrough seal in accordance with the present invention;
fig. 4 is a structural view of the penetration in the present invention.
Reference numerals illustrate:
1. casting mould, 11, lower mould, 12, upper mould, 13, casting cavity, 14, shrinkage fluid-supplementing hole, 15, through groove, 16, pressing groove, 17, pressing block, 18, screw hole, 19, screw rod, 2, penetrating piece, 21, bump, 3, pipe bearing, 4, and pressing cap.
Detailed Description
The present application will now be described in further detail with reference to the drawings and examples, wherein it is apparent that the examples described are only some, but not all, of the examples of the application. Embodiments of the application and features of the embodiments may be combined with each other without conflict. All other embodiments, based on the embodiments of the application, which would be apparent to one of ordinary skill in the art without inventive effort are within the scope of the application.
See fig. 1 to 4.
The invention discloses a preparation method of an optical fiber penetrating piece, which comprises the following steps:
s1, fixing an optical fiber in a casting mold 1, and placing corresponding metal materials into the casting mold 1 together;
S2, synchronously heating the optical fiber and the metal material, and waiting for solidification of the metal material after the metal material melts and wraps the optical fiber.
According to the preparation method of the optical fiber penetrating piece 2, the metal material is melted and wraps the optical fiber, a thicker metal layer is formed outside the optical fiber, and compared with the conventional optical fiber penetrating piece 2, the optical fiber penetrating piece 2 is directly prepared on the corresponding optical fiber, the sealing effect is far more than that of the conventional optical fiber penetrating piece 2, and the optical fiber penetrating piece has excellent high-temperature and high-pressure resistance (the metal can be always sealed as long as the metal is not melted);
In addition, the optical fiber and the metal material are heated synchronously, so that the temperature of the optical fiber is similar to that of the metal material, the optical fiber is not easy to break, the highest melting point of the metal material in the mode is only slightly lower than that of the optical fiber (the melting point of the conventional optical fiber is 1723+/-5 ℃), if the melted metal solution is directly poured into the casting mould 1, the temperature difference between the optical fiber and the metal material is easily caused to be overlarge, the optical fiber is easy to break, and the solidified metal material is easy to have sand holes, small bubbles and the like.
When the optical fiber penetrating piece is used, one end of the optical fiber penetrating piece 2 is directly placed in a high-temperature and high-pressure environment, the other end of the optical fiber penetrating piece 2 is located at the normal-temperature differential pressure side, and the outer wall of the optical fiber penetrating piece 2 is in sealing fit with an object to be measured.
In one embodiment, the method further comprises S3, machining two ends of the solidified metal material to manufacture the connector connected with the corresponding optical fiber instrument.
In the specific implementation, burrs on the surface of the metal material are removed in a machining mode, and then threads are machined at two ends of the metal material and are connected with an optical fiber instrument with an FC/APC optical fiber interface.
In one embodiment, the solidified metallic material has a thickness greater than 1mm. In particular implementations, a metal layer greater than 1mm facilitates subsequent machining processes.
In one embodiment, in S2, the optical fiber and the metal material located within the casting mold 1 are heated by heating the casting mold 1. By this design, heating is more uniform.
In one embodiment, the casting mold 1 is a graphite mold and the heating means is electric eddy current heating. In the concrete implementation, the die is completely placed in the heating coil by adopting an eddy current heating mode of the intermediate frequency furnace, the direct heating element is the surface of the graphite die, and the minimum wall thickness of the die can be set to be more than 3mm, so that the whole temperature of the die is uniform.
In one embodiment, in S1, both ends of the optical fiber extend out of the casting mold 1. The extended portion of the fiber is designed for monitoring the condition of the fiber during processing (e.g., detecting whether the fiber is broken, detecting the transmission of the fiber). Specifically, the part of the optical fiber extending out is connected with an optical fiber state monitoring device, and the state of the optical fiber in the processing process is monitored through the optical fiber state monitoring device.
In one embodiment, the metal material is one of red copper, nickel-based stainless steel, 316 stainless steel or 321 stainless steel, wherein the temperature is less than or equal to 350 ℃, the pressure is less than or equal to 20MPa, the material can be red copper, the temperature is 350-900 ℃ and the pressure is less than 40MPa, the material can be nickel-based stainless steel, and the temperature is higher than 900 ℃, the 316 stainless steel or 321 stainless steel can be adopted.
In an embodiment, the casting mold 1 is divided into a lower mold 11 and an upper mold 12, a first casting groove is formed in the middle of the lower mold 11, a second casting groove is formed in the position of the upper mold 12 corresponding to the first casting groove, the first casting groove and the second casting groove are matched to form a casting cavity 13, the inner contour of the casting cavity 13 is matched with the outer contour of the penetrating piece 2, a shrinkage fluid supplementing hole 14 communicated with the first casting groove is formed in the upper mold 12, and a metal material for melting fluid supplementing is placed in the shrinkage fluid supplementing hole 14.
In specific implementation, when the corresponding metal materials are put into the casting mold 1 together, the metal materials are not only placed in the casting cavity 13 but also placed in the shrinkage liquid supplementing hole 14, so that after the metal materials in the shrinkage liquid supplementing hole 14 are melted, the metal materials flow into the casting cavity 13 to fill the casting cavity 13, so that the casting cavity 13 is filled with the metal solution, and the penetrating piece 2 with qualified size is ensured to be obtained.
In one embodiment, two ends of the upper mold 12 are provided with a through groove 15 for the optical fiber to pass through, and the upper mold 12 is also provided with a pressing component;
the pressing component comprises a pressing groove 16 arranged at the position of the upper die 12 corresponding to the through groove 15, wherein the pressing groove 16 is communicated with the through groove 15, a pressing block 17 is arranged in the pressing groove 16, the pressing component further comprises a screw hole 18 penetrating through the pressing groove 16 and the outer side of the upper die 12, a screw rod 19 is in spiral fit in the screw hole 18, and the end part of the screw rod 19 is connected with the pressing block 17.
In practice, the end of the screw 19 is rotatably connected to the pressing block 17. During operation, the optical fiber passes through the through groove 15, after the metal material is placed into the casting mould 1, the upper mould 12 and the lower mould 11 are fixed together through bolts, then the screw 19 is rotated to drive the pressing block 17 to move downwards to press the optical fiber, so that the optical fiber is fixed, and before the optical fiber is fixed, the optical fiber in the casting mould 1 can be straightened by pulling the two ends of the optical fiber, and then the optical fiber is fixed, so that the optical fiber is prevented from bending in the mould, and the transmission quality is prevented from being influenced.
In one embodiment, the casting mold 1 is heated in a horizontal position with the upper mold 12 above the lower mold 11 and the shrinkage-compensating liquid hole 14 located at the top of the casting cavity 13 and communicating with the casting cavity 13. By means of the design, the metal solution in the shrinkage liquid supplementing hole 14 automatically flows into the casting cavity 13 by means of gravity, and the metal solution is uniformly distributed in the casting cavity 13 due to the horizontal posture.
In one embodiment, the casting mold 1 is heated while being in a vacuum state inside the casting mold 1.
In specific implementation, the inside of the casting mold 1 is in a vacuum state through vacuum equipment (such as a vacuum pump), so that on one hand, the graphite mold can be protected from being oxidized with air in a high-temperature environment, and on the other hand, the gas in the casting cavity 13 can be conveniently discharged, the possibility of generating bubbles and sand holes on the body of the penetrating piece 2 is further reduced, and the casting quality of the penetrating piece 2 is improved.
In one embodiment, the optical fiber and the metal material are heated synchronously by adopting a constant temperature heating mode, wherein the temperature rise rate of the constant temperature heating comprises a rapid temperature rise stage, a transition stage, a melting stage and a step temperature reduction stage, wherein:
A rapid temperature rise stage, wherein the temperature is rapidly increased from room temperature to a temperature lower than the melting point of the corresponding metal;
In the transition stage, after the rapid temperature rising stage, maintaining the constant temperature for not less than 5 minutes, then gradually rising the temperature to be higher than the melting point temperature of the corresponding metal, and in the temperature rising process, maintaining the constant temperature for not less than 5 minutes at each rising temperature of 100 ℃ in a graded manner;
the melting stage is maintained at a constant temperature higher than the melting point of the corresponding metal until the metal material is completely melted and the optical fiber is wrapped;
And in the step cooling stage, cooling in a gradient manner until the room temperature is reached.
In specific implementation, the rapid temperature rise stage is performed while the temperature is not allowed to reach the melting point temperature of the metal, and then the temperature is maintained for a period of time, so that the inside of the die is fully heated and expanded (equivalent to preheating), the stepped temperature rise can be performed, the metal positioned on the inner side of the casting cavity 13 and the metal positioned on the inner wall of the casting cavity 13 are almost simultaneously melted, the existence time of a solid-liquid coexisting state is reduced, and after the metal is completely melted and wraps the optical fiber, the temperature is reduced in a gradient manner, so that the internal stress generated during solidification is released.
The invention also discloses a sealing structure of the optical fiber penetrating member, wherein the optical fiber penetrating member 2 is manufactured by adopting the manufacturing method, the sealing structure comprises a convex block 21 positioned in the middle of the penetrating member 2, arc chamfer angles are arranged on two sides of the convex block 21, and the arc chamfer angles are annularly distributed on two sides of the convex block 21;
The pipe support 3 and the pressing cap 4 are independent of two sides of the protruding block 21 respectively, the pipe support 3 is hollow, one end of the corresponding protruding block 21 of the pipe support 3 is provided with a conical surface for being in contact with and attached to a corresponding circular arc chamfer, one end of the penetrating piece 2 penetrates through the pressing cap 4, one end of the corresponding protruding block 21 of the pressing cap 4 is in contact with the protruding block 21, the other end of the pressing cap 4 is matched with the pipe support 3, and the protruding block 21 is extruded to enable the protruding block 21 to be attached to and sealed with the pipe support 3.
In the concrete implementation, the pipe bearing 3 is used as a structural reinforcement to be welded on a high-temperature and high-pressure pipeline/chamber, the lug 21 in the middle of the penetrating piece 2 is extruded by the press cap 4, so that the lug 21 is attached to the pipe bearing 3 for sealing, and the sealing is realized.
The invention also discloses a sealing structure of the optical fiber penetrating piece, wherein one end of the pipe bearing 3 corresponding to the pressing cap 4 is provided with external threads, and the inner side of the pressing cap 4 is provided with internal threads matched with the external threads. By means of the design, the press cap 4 and the pipe bearing 3 are connected together in a threaded connection mode, and pre-pressure can be provided for the protruding block 21 in a pre-tightening mode, so that the fitting sealing performance of the protruding block 21 and the pipe bearing 3 is improved.
It should be noted that, in the embodiment of the present invention, directional indications (such as up and down) are referred to, and the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in an embodiment of the invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, "a plurality of" means two or more. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed by the invention.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (15)
1. A method of making an optical fiber penetration, comprising:
s1, fixing an optical fiber in a casting mold (1), and placing corresponding metal materials into the casting mold (1) together;
S2, synchronously heating the optical fiber and the metal material, and waiting for solidification of the metal material after the metal material melts and wraps the optical fiber.
2. The method of manufacturing an optical fiber penetration of claim 1, further comprising, after S2:
And S3, machining two ends of the solidified metal material to obtain the connector connected with the corresponding optical fiber instrument.
3. The method of manufacturing an optical fiber penetration according to claim 1 or 2, wherein the thickness of the solidified metal material is greater than 1mm.
4. A method of producing an optical fiber penetration according to claim 1 or 2, characterized in that in S2 the optical fiber and the metal material located in the casting mould (1) are heated by means of heating the casting mould (1).
5. The method for producing an optical fiber penetration according to claim 4, wherein the casting mold (1) is a graphite mold and the heating means is electric eddy current heating.
6. The method for producing an optical fiber penetration member according to claim 4, wherein the casting mold (1) is heated while being in a vacuum state inside the casting mold (1).
7. A method of producing an optical fiber penetration according to claim 1 or 2, characterized in that in S1 both ends of the optical fiber are protruded from the casting mold (1).
8. The method of manufacturing an optical fiber penetration according to claim 1 or 2, wherein the metal material is one of red copper, nickel-based stainless steel, 316 stainless steel, or 321 stainless steel.
9. The method for manufacturing the optical fiber penetrating member according to claim 1 or 2, wherein the casting mold (1) is divided into a lower mold (11) and an upper mold (12), a first casting groove is formed in the middle of the lower mold (11), a second casting groove is formed in the position of the upper mold (12) corresponding to the first casting groove, the first casting groove and the second casting groove are matched to form a casting cavity (13), the inner contour of the casting cavity (13) is matched with the outer contour of the penetrating member (2), a shrinkage fluid supplementing hole (14) communicated with the first casting groove is formed in the upper mold (12), and a metal material for melting fluid supplementing is placed in the shrinkage fluid supplementing hole (14).
10. The method for manufacturing an optical fiber penetration assembly according to claim 9, wherein the upper mold (12) is provided with penetration grooves (15) for the optical fiber to pass through at both ends, and the upper mold (12) is further provided with a pressing member for fixing the optical fiber by pressing.
11. The method for manufacturing the optical fiber penetrating member according to claim 10, wherein the pressing member comprises a pressing groove (16) formed in the upper die (12) at a position corresponding to the penetrating groove (15), the pressing groove (16) is communicated with the penetrating groove (15), a pressing block (17) is arranged in the pressing groove (16), the method further comprises a screw hole (18) penetrating through the pressing groove (16) and the outer side of the upper die (12), a screw rod (19) is screwed in the screw hole (18), and the end portion of the screw rod (19) is connected with the pressing block (17).
12. The method of manufacturing an optical fiber penetration according to claim 9, wherein the casting mold (1) is heated in a horizontal posture, the upper mold (12) is located above the lower mold (11), and the shrinkage-compensating hole (14) is located at the top of the casting cavity (13) and communicates with the casting cavity (13).
13. The method for manufacturing an optical fiber penetration assembly according to claim 1 or 2, wherein the optical fiber and the metal material are heated synchronously by constant temperature heating, and the temperature rise rate of the constant temperature heating comprises a rapid temperature rise stage, a transition stage, a melting stage and a step temperature reduction stage, wherein:
A rapid temperature rise stage, wherein the temperature is rapidly increased from room temperature to a temperature lower than the melting point of the corresponding metal;
In the transition stage, after the rapid temperature rising stage, maintaining the constant temperature for not less than 5 minutes, then gradually rising the temperature to be higher than the melting point temperature of the corresponding metal, and in the temperature rising process, maintaining the constant temperature for not less than 5 minutes at the temperature of 100 ℃ in each rising period;
the melting stage is maintained at a constant temperature higher than the melting point of the corresponding metal until the metal material is completely melted and the optical fiber is wrapped;
And in the step cooling stage, cooling in a gradient manner until the room temperature is reached.
14. The optical fiber penetrating member sealing structure is characterized in that the optical fiber penetrating member (2) is manufactured by adopting the manufacturing method according to any one of claims 1 to 13, the sealing structure comprises a convex block (21) positioned in the middle of the penetrating member (2), arc chamfer angles are arranged on two sides of the convex block (21), and the arc chamfer angles are annularly distributed on two sides of the convex block (21);
Still include pipe socket (3) and press cap (4), pipe socket (3) and press cap (4) are independent of the both sides of lug (21) respectively, and pipe socket (3) are the cavity form, and the one end of the corresponding lug (21) of pipe socket (3) is provided with the conical surface for contact and laminating with corresponding circular arc chamfer, the one end of penetrating member (2) passes press cap (4), the one end and the lug (21) contact of the corresponding lug (21) of press cap (4), the other end and the cooperation of pipe socket (3) of press cap (4) are used for extrusion lug (21), make lug (21) and pipe socket (3) laminating seal.
15. The optical fiber penetration sealing structure according to claim 14, wherein one end of the corresponding press cap (4) of the pipe socket (3) is provided with an external thread, and an inner side of the press cap (4) is provided with an internal thread matched with the external thread.
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| CN202510318296.XA CN119846795B (en) | 2025-03-18 | 2025-03-18 | A method for preparing an optical fiber penetration component and an optical fiber penetration component sealing structure |
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| CN202510318296.XA CN119846795B (en) | 2025-03-18 | 2025-03-18 | A method for preparing an optical fiber penetration component and an optical fiber penetration component sealing structure |
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| CN201844122U (en) * | 2009-02-04 | 2011-05-25 | 烙克赛克有限公司 | Compressible module for cable lead-in part or pipeline penetrating part and sealing system |
| CN102608694A (en) * | 2012-03-20 | 2012-07-25 | 袁芳革 | A kind of metal clad optical fiber and its preparation method |
| CN103308999A (en) * | 2013-06-09 | 2013-09-18 | 江苏华光电缆电器有限公司 | Glass-brazed fiber-optic penetrator |
| CN103760651A (en) * | 2014-02-20 | 2014-04-30 | 四川飞阳科技有限公司 | Tool used for conducting air tightness sealing on optical fibers |
| CN103885138A (en) * | 2014-02-20 | 2014-06-25 | 四川飞阳科技有限公司 | Optical fiber sealing tooling and method for optical fiber sealing |
| CN112346180A (en) * | 2019-08-09 | 2021-02-09 | 汇聚科技（惠州）有限公司 | Method for packaging optical fiber and metal part |
| CN118848189A (en) * | 2024-09-10 | 2024-10-29 | 长飞（武汉）光系统股份有限公司 | Fixtures, tools, welding platforms and welding methods for fiber optic assemblies |
| CN119471936A (en) * | 2024-10-30 | 2025-02-18 | 中国核动力研究设计院 | Fiber Optic Feedthroughs |
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