CN105643961A - External pressure resistance composite material cylinder body and metal end socket co-curing connecting structure and manufacturing method thereof - Google Patents
External pressure resistance composite material cylinder body and metal end socket co-curing connecting structure and manufacturing method thereof Download PDFInfo
- Publication number
- CN105643961A CN105643961A CN201610012285.XA CN201610012285A CN105643961A CN 105643961 A CN105643961 A CN 105643961A CN 201610012285 A CN201610012285 A CN 201610012285A CN 105643961 A CN105643961 A CN 105643961A
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- Prior art keywords
- metal
- metal end
- metal flange
- composite material
- cylinder body
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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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/84—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks by moulding material on preformed parts to be joined
-
- 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
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
- B29C65/64—Joining a non-plastics element to a plastics element, e.g. by force
-
- 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
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
- B29C66/5326—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially flat
- B29C66/53261—Enclosing tubular articles between substantially flat elements
-
- 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
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
Abstract
The invention relates to an external pressure resistance composite material cylinder body and metal end socket co-curing connecting structure and a manufacturing method of the external pressure resistance composite material cylinder body and metal end socket co-curing connecting structure. The connecting structure comprises two metal flanges. Each metal flange is provided with a base and a first connecting segment. The two bases are fixedly connected with two metal end sockets correspondingly. The free end of the first connecting segment of each metal flange is provided with a 27-degree taper angle. The two ends of a composite material cylinder body are correspondingly provided with second connecting segments matched with the taper angles of the two metal flanges. The inner diameter of each metal flange is equivalent to the inner diameter of the composite material cylinder body. The external pressure resistance composite material cylinder body and metal end socket co-curing connecting structure overcomes the existing technical defect that the assembly and connecting effects of external pressure resistance composite materials and metal end sockets is poor, and the metal flanges with the 27-degree taper angles and the composite material cylinder body are wound, co-cured and formed to be mechanically connected with the metal end sockets after demoulding. Accordingly, the connecting structure can guarantee the connecting strength and airtightness of the composite material cylinder body and metal end socket cylinder bodies.
Description
Technical field
The present invention relates to the attachment structure of a kind of critical external compressive resistance composite cylinder and metal end enclosure co-curing and manufacture method thereof.
Background technology
Composite has the features such as specific stiffness is big, specific strength big, designability, is widely used in Aeronautics and Astronautics and deep-sea engineering. But the restriction due to winding technology, most of composite critical external compressive resistance housings are not full composite material goods, but adopt metal end enclosure easily processed into type to be attached coordinating with Wrapping formed composite stack shell, thus just bring about the technical barrier being connected between composite cylinder and metal end enclosure. In addition, for critical external compressive resistance housing, emphatically it is considered that the leakage resistance of its component and anti-unstability ability, and the junction of composite cylinder and metal end enclosure is precisely the position that integrated member is the weakest, therefore is the problem that emphasis considers about the attachment structure between composite cylinder and end socket.
Traditional connected mode adopts notch cuttype to glued joint or screw blended is connected with cementing, wherein the cementing connection stress form of notch cuttype is simple, under external pressure load, is always parallel to the shearing force of bonding plane, and glue-joint strength is limited, the phenomenon of connecting portion degumming often occurs; If shell portion adopts screw and cementing blended connected mode, then need to carry out perforate at composite stack shell, it is known that, the perforate of composite element surface can make fiber laying cut off, then stress concentration phenomenon is produced, original connecting portion is exactly the region that whole component is the weakest, and this connected mode easily aggravates the destruction of connecting portion; Additionally, due to the flexibility of composite stack shell is relatively big and the restriction of post-treatment technology, directly coordinating with metal end enclosure outer surface according to the composite stack shell inner surface after molding, this may result in the problem that the fiting effect of connecting portion is bad.
Summary of the invention
The technical problem to be solved is to provide a kind of critical external compressive resistance composite cylinder of bonding strength and sealing and the attachment structure of metal end enclosure co-curing and manufacture method thereof of ensure that.
This invention address that its technical problem have employed following technical scheme:
A kind of attachment structure of critical external compressive resistance composite cylinder and metal end enclosure co-curing, it includes two metal flanges, each metal flange has base and the first linkage section, two bases are fixed with two metal end enclosures respectively and are connected, the free end of the first linkage section of each metal flange has the cone angle of 27 ��, the two ends of described composite cylinder are respectively arranged with the second linkage section that the cone angle with two metal flanges matches, and the internal diameter of each metal flange is suitable with the internal diameter of described composite cylinder.
In such scheme, described metal end enclosure is sheathed on the outer wall of described metal flange, and each metal end enclosure has direct tube section and end face section, and the inner wall surface of described direct tube section and end face section offers multiple groove, is all placed with sealing ring in the plurality of groove.
In such scheme, metal end enclosure and metal flange are bolted to connection.
In such scheme, the mismachining tolerance of metal flange cone angle is �� 5 ��.
In such scheme, the material of metal flange is titanium alloy.
Described critical external compressive resistance composite cylinder and the manufacture method of the attachment structure of metal end enclosure co-curing, comprise the following steps:
1) process the cone angle of 27 �� at the first linkage section of metal flange, mismachining tolerance is �� 5 ��;
2) two metal flanges are installed on the two ends of cylinder core, and the external diameter of described core is equal with the internal diameter of metal flange;
3) carbon fiber wet winding moulding process is adopted to carry out Filament-wound Machine at the outer surface of the cone angle outer surface of metal flange with core;
4) after being wound around, carry out rotation limit, limit and be heating and curing mode, solidify and after terminating, cylinder core is extracted out, and the stack shell of the carbon fibre composite cylinder obtained is carried out surface post-treatment process;
5) in the inner wall surface of the direct tube section of each metal end enclosure and end face section, process multiple groove, place sealing ring in a groove, then by two metal end enclosures and step 4) structure of obtained by molding carries out bolt and is connected, and bolt scribbles fluid sealant.
In such scheme, described step 3) in carbon fiber wet winding moulding process in the resin system that uses adopt bisphenol A epoxide resin curing system, fiber is carbon fiber, and fiber laying angle design is: [902\��602\902\��302]9[90]3��
In such scheme, described sealing ring is expanded PTFE.
Advantages of the present invention and effect are in that:
1) present invention overcomes the technical problem of existing critical external compressive resistance composite and metal end enclosure assembly connection poor effect, adopts the metal flange with 27 �� of cone angles and composite stack shell to be mechanically connected with metal end enclosure after being wound around co-curing molding, the demoulding again. Therefore, the attachment structure of present invention design ensure that bonding strength and the sealing of composite stack shell and metal end enclosure stack shell.
2) present invention adopts the method for the molding being wound around co-curing to connect the metal flange and critical external compressive resistance composite stack shell with cone angle, avoid the situation of connecting portion fibre cutting, and inclination angle is to determine according to force analysis, connecting portion stress can be made more reasonable, namely according to force analysis, connecting portion is subject to from axial and radially 1:2 power, its resultant direction with axially become 63 ��, therefore inclined-plane can be processed and make it vertical with suffered resultant direction, reduce the effect of shearing force suffered by connecting portion, optimize the stress form of connecting portion, namely flange cone angle design is 27 ��. owing to metal end enclosure and metal flange are mechanically connected, this connects and repeatable utilizes metal end enclosure.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of critical external compressive resistance composite cylinder and the attachment structure of metal end enclosure co-curing;
Fig. 2 is the connecting portion partial structurtes schematic diagram of Fig. 1;
Fig. 3 is the structural representation of metal flange;
Fig. 4 is the metal end enclosure with groove and screw.
1-critical external compressive resistance composite cylinder, 2-metal flange, 3-sealing ring, 4-metal end enclosure, 5-bolt.
Detailed description of the invention
Present disclosure is illustrated below in conjunction with drawings and Examples.
As shown in Figures 1 to 4, it is the attachment structure of a kind of critical external compressive resistance composite cylinder provided by the invention and metal end enclosure co-curing, it includes two metal flanges 2, each metal flange 2 has base and the first linkage section, two bases are fixed with two metal end enclosures 4 respectively and are connected, the free end of the first linkage section of each metal flange 2 has the cone angle of 27 ��, the two ends of composite cylinder 1 are respectively arranged with the second linkage section that the cone angle with two metal flanges 2 matches, and the internal diameter of each metal flange 2 is suitable with the internal diameter of composite cylinder 1.
Metal end enclosure 4 is sheathed on the outer wall of metal flange 2, and each metal end enclosure 2 has direct tube section and end face section, and the inner wall surface of direct tube section and end face section offers multiple groove, is all placed with sealing ring 3 in multiple grooves.
In the present embodiment, metal end enclosure 4 is connected by bolt 5 is fixing with metal flange 2. The mismachining tolerance of metal flange 2 cone angle is �� 5 ��. In the present embodiment, the material of metal flange 2 is titanium alloy.
The present invention also provides for the manufacture method of this attachment structure, and for certain anti-20MPa external pressure carbon fibre composite cylinder, carbon fibre composite cylinder height 700mm (not including the second linkage section), thick 12mm, it comprises the following steps:
1) process the cone angle of 27 �� at the first linkage section of metal flange 2, mismachining tolerance is �� 5 ��, the thick 12mm of metal flange 2, internal diameter
2) two metal flanges 2 are installed on the two ends of cylinder core (not shown), and the external diameter of core is equal with the internal diameter of metal flange 2, and the effective length of middle reserved goods is 700mm;
3) carbon fiber wet winding moulding process is adopted to carry out Filament-wound Machine at the outer surface of the cone angle outer surface of metal flange with core; Resin system adopts bisphenol A epoxide resin hot setting system, and fiber adopts eastern beautiful T700SC-12K carbon fiber, and fiber laying angle design is: [902\��602\902\��302]9[90]3, total thickness 12mm, because to consider the cone angle length of metal flange 2 and the two ends generation non-linear angle change that goods are Wrapping formed, therefore it is wound around overall length 750mm;
4) after being wound around, carry out rotation limit, limit and be heating and curing mode, solidify and after terminating, cylinder core is extracted out, and the stack shell of the carbon fibre composite cylinder 1 obtained is carried out surface post-treatment process (i.e. polishing and brush system one strata urethane);
5) on the direct tube section of each metal end enclosure 4 and the inner wall surface of end face section, three grooves are processed, size is 2.3*3.9mm and 7.1*4.3mm respectively, scale error is+0.05mm, placing sealing ring 3 in a groove, sealing ring is expanded PTFE, and thickness error is+0.05mm, again by two metal end enclosures 4 and step 4) structure of obtained by molding carries out bolt 5 and is connected, and bolt 5 scribbles fluid sealant.
Claims (8)
1. the attachment structure of a critical external compressive resistance composite cylinder and metal end enclosure co-curing, it is characterized in that, it includes two metal flanges, each metal flange has base and the first linkage section, two bases are fixed with two metal end enclosures respectively and are connected, the free end of the first linkage section of each metal flange has the cone angle of 27 ��, the two ends of described composite cylinder are respectively arranged with the second linkage section that the cone angle with two metal flanges matches, and the internal diameter of each metal flange is suitable with the internal diameter of described composite cylinder.
2. attachment structure as claimed in claim 1, it is characterized in that, described metal end enclosure is sheathed on the outer wall of described metal flange, each metal end enclosure has direct tube section and end face section, the inner wall surface of described direct tube section and end face section offers multiple groove, is all placed with sealing ring in the plurality of groove.
3. attachment structure as claimed in claim 1, it is characterised in that metal end enclosure and metal flange are bolted to connection.
4. attachment structure as claimed in claim 1, it is characterised in that the mismachining tolerance of metal flange cone angle is �� 5 ��.
5. attachment structure as claimed in claim 1, it is characterised in that the material of metal flange is titanium alloy.
6. the manufacture method of the attachment structure of critical external compressive resistance composite cylinder as claimed in claim 1 and metal end enclosure co-curing, it is characterised in that comprise the following steps:
1) process the cone angle of 27 �� at the first linkage section of metal flange, mismachining tolerance is �� 5 ��;
2) two metal flanges are installed on the two ends of cylinder core, and the external diameter of described core is equal with the internal diameter of metal flange;
3) carbon fiber wet winding moulding process is adopted to carry out Filament-wound Machine at the outer surface of the cone angle outer surface of metal flange with core;
4) after being wound around, carry out rotation limit, limit and be heating and curing mode, solidify and after terminating, cylinder core is extracted out, and the stack shell of the carbon fibre composite cylinder obtained is carried out surface post-treatment process;
5) in the inner wall surface of the direct tube section of each metal end enclosure and end face section, process multiple groove, place sealing ring in a groove, then by two metal end enclosures and step 4) structure of obtained by molding carries out bolt and is connected, and bolt scribbles fluid sealant.
7. manufacture method as claimed in claim 6, it is characterized in that, described step 3) in carbon fiber wet winding moulding process in the resin system that uses adopt bisphenol A epoxide resin curing system, fiber is carbon fiber, and fiber laying angle design is: [902\��602\902\��302]9[90]3��
8. manufacture method as claimed in claim 6, it is characterised in that described sealing ring is expanded PTFE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610012285.XA CN105643961A (en) | 2016-01-08 | 2016-01-08 | External pressure resistance composite material cylinder body and metal end socket co-curing connecting structure and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610012285.XA CN105643961A (en) | 2016-01-08 | 2016-01-08 | External pressure resistance composite material cylinder body and metal end socket co-curing connecting structure and manufacturing method thereof |
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| CN105643961A true CN105643961A (en) | 2016-06-08 |
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| CN201610012285.XA Pending CN105643961A (en) | 2016-01-08 | 2016-01-08 | External pressure resistance composite material cylinder body and metal end socket co-curing connecting structure and manufacturing method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799315A (en) * | 2018-06-08 | 2018-11-13 | 武汉理工大学 | Composite material for vehicle transmission shaft and preparation method thereof |
| CN110285215A (en) * | 2019-06-25 | 2019-09-27 | 西北工业大学 | A kind of sealing structure and method of aperture composite end socket |
| CN111229058A (en) * | 2018-11-28 | 2020-06-05 | 南京舒宜汇科学仪器有限公司 | Preparation process of ceramic composite membrane with metal protective layer |
| CN111761827A (en) * | 2020-06-09 | 2020-10-13 | 武汉理工大学 | Connecting process method for carbon fiber reinforced resin matrix composite material |
| CN113815767A (en) * | 2021-09-30 | 2021-12-21 | 中国人民解放军海军工程大学 | End connecting structure of sandwich composite pressure-resistant shell and manufacturing method thereof |
| CN114439842A (en) * | 2022-01-24 | 2022-05-06 | 厦门牢力实业有限公司 | High-strength insulating transmission shaft for high-power wind driven generator and manufacturing method thereof |
| CN117162530A (en) * | 2023-11-02 | 2023-12-05 | 北京玻钢院复合材料有限公司 | Composite pressure-resistant shell with built-in metal ring, preparation method thereof and sealing connection method of composite pressure-resistant shell and flange |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799315A (en) * | 2018-06-08 | 2018-11-13 | 武汉理工大学 | Composite material for vehicle transmission shaft and preparation method thereof |
| CN108799315B (en) * | 2018-06-08 | 2020-04-21 | 武汉理工大学 | Composite material transmission shaft for vehicle and preparation method thereof |
| CN111229058A (en) * | 2018-11-28 | 2020-06-05 | 南京舒宜汇科学仪器有限公司 | Preparation process of ceramic composite membrane with metal protective layer |
| CN110285215A (en) * | 2019-06-25 | 2019-09-27 | 西北工业大学 | A kind of sealing structure and method of aperture composite end socket |
| CN111761827A (en) * | 2020-06-09 | 2020-10-13 | 武汉理工大学 | Connecting process method for carbon fiber reinforced resin matrix composite material |
| CN111761827B (en) * | 2020-06-09 | 2022-03-18 | 武汉理工大学 | Connecting process method for carbon fiber reinforced resin matrix composite material |
| CN113815767A (en) * | 2021-09-30 | 2021-12-21 | 中国人民解放军海军工程大学 | End connecting structure of sandwich composite pressure-resistant shell and manufacturing method thereof |
| CN113815767B (en) * | 2021-09-30 | 2022-07-22 | 中国人民解放军海军工程大学 | End connecting structure of sandwich composite pressure-resistant shell and manufacturing method thereof |
| CN114439842A (en) * | 2022-01-24 | 2022-05-06 | 厦门牢力实业有限公司 | High-strength insulating transmission shaft for high-power wind driven generator and manufacturing method thereof |
| CN117162530A (en) * | 2023-11-02 | 2023-12-05 | 北京玻钢院复合材料有限公司 | Composite pressure-resistant shell with built-in metal ring, preparation method thereof and sealing connection method of composite pressure-resistant shell and flange |
| CN117162530B (en) * | 2023-11-02 | 2024-03-08 | 北京玻钢院复合材料有限公司 | Composite pressure-resistant shell with built-in metal ring, preparation method thereof and sealing connection method of composite pressure-resistant shell and flange |
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Application publication date: 20160608 |
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