CN106705748B - The cold charge method of completing the square of the barrel of the carbon fibre composite containing metal inner lining - Google Patents
The cold charge method of completing the square of the barrel of the carbon fibre composite containing metal inner lining Download PDFInfo
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- CN106705748B CN106705748B CN201611182905.0A CN201611182905A CN106705748B CN 106705748 B CN106705748 B CN 106705748B CN 201611182905 A CN201611182905 A CN 201611182905A CN 106705748 B CN106705748 B CN 106705748B
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- Prior art keywords
- inner lining
- carbon fibre
- metal inner
- fibre composite
- metal
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/02—Composite barrels, i.e. barrels having multiple layers, e.g. of different materials
- F41A21/04—Barrel liners
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/20—Barrels or gun tubes characterised by the material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of barrel of carbon fibre composite containing metal inner lining and its cold setting manufacturing methods, barrel includes metal inner lining, metal tail pipe, metal end pipe and carbon fibre composite layer, metal tail pipe, metal end pipe are connected the head and the tail end of metal inner lining respectively, the carbon fibre composite layer is set on the metal inner lining periphery, and the carbon fibre composite layer has the circumferential trend for compressing the metal inner lining.The barrel of said structure employs the design method of sectional, can mitigate the weight of every section of barrel, is carried convenient for soldier.In addition, carbon fibre composite layer generates metal inner lining ring orientation prestress, carbon fibre composite layer is subject to a circumferential tensile stress, and metal inner lining is subject to a circumferential compression, so that the two contact is even closer, improves the pressure-bearing load-bearing capacity of barrel.
Description
Technical field
The present invention relates to one kind to contain metal inner lining carbon fibre composite pressure-bearing barrel configuration and corresponding manufacturing method.
Background technology
The demand for development future weaponry of modern military technology has the characteristics that light, motor-driven, flexible fast reaction, because
This must Devoting Major Efforts To Developing new structure and functional material.Wherein fibrous composite have lightweight, high-strength, not corrosion, it is corrosion-resistant,
The advantages that endurance and good designability is a kind of new material being most widely used at present.But fibrous composite is anti-
Ablation ability and seal are poor, so generally in the inner wall additional layer metal material of fibrous composite launching tube, it is this
Not only light weight, designability are strong for fibrous composite launching tube containing metal inner lining, also with good leakproofness, can meet
Various weapon platforms are with a wide range of applications to the requirement of launching tube.The transmitting stack shell that army of China uses at present
Pipe is still made of all-metal, and overweight launching tube inconvenience soldier carries, and the flexible property of operation is also poor.
If carbon fibre composite directly is wound in metal inner lining outer surface to make barrel, there is also some technically
Deficiency:
One：The composite layer of metal inner lining outer surface winding needs hot setting, if sub- using thermosetting property polyamides
Polyimide resin, solidification temperature is up to 300 degree or more, and under so high solidification temperature, metal inner lining expands, and outer surface
Carbon fibre composite layer is not expanded under high temperature, twines outer surface after metal inner lining thermal expansion substantially to temperature-insensitive
Around carbon fibre composite layer strut, after curing cooling, metal inner lining is shunk, easily in composite layer and metal
It serves as a contrast interface and generates gap, occur to combine untight situation, cause carbon fibre composite layer that can not play reinforcing barrel circumferential
The effect of intensity.
Secondly：The modulus of metal inner lining is generally 200GPa, yield strength 1280MPa, and carbon fiber (T800) is compound
Material layer circumferential direction modulus is generally less than the modulus of metal, generally 180GPa, and intensity is 3000MPa or so, because composite material
Circumferential modulus be less than metal inner lining, so in live ammunition, the circumference stress on composite layer is less than on metal inner lining
Circumference stress it is farther far below its own intensity, cause the waste of material.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of carbon fiber containing metal inner lining for the above-mentioned prior art to answer
The barrel configuration of condensation material and its cold setting manufacturing method improve metal inner lining and the carbon fibre composite layer as reinforcing member
Between contact compactness.Using special cold machining process carbon fibre composite layer is made to generate circumferential pressure to metal inner lining should
Power, and the circumferential generation tensile stress of carbon fibre composite layer.When transmitting generates high gun pressure, the circumferential compression of metal inner lining will
The huge tensile stress that part powder gases are brought is offset, so as to improve the force-bearing situation of metal inner lining.If have in inner liner metal
Blind crack exists, and due to the presence of compression, can delay its evolution, so as to improve fatigue behaviour.
Technical solution is used by the present invention solves the above problems：A kind of body of the carbon fibre composite containing metal inner lining
Pipe, including metal inner lining, metal end pipe, metal connecting tube and carbon fibre composite layer, passes through institute between adjacent metal liner
The metal connecting tube connection stated, metal end pipe are connected the head and the tail end of metal inner lining respectively, and the carbon fibre composite layer is worn
The metal inner lining periphery is sleeved on, and the carbon fibre composite layer has the circumferential trend for compressing the metal inner lining.
The metal inner lining is exposed to the connection screw thread that is provided at both ends with outside carbon fibre composite layer, the metal inner lining
It is threadedly coupled between the metal connecting tube or metal end pipe reinforced without carbon fibre composite layer.
Technical solution is to provide a kind of above-mentioned carbon containing metal inner lining of manufacture used by the present invention solves another technical problem
The cold charge method of completing the square of fibrous composite barrel improves contact compactness of the metal inner lining with carbon fibre composite interlayer, tool
Body is first, to prepare metal inner lining and carbon fibre composite layer, and carbon fibre composite layer, machine are made using winding process
Tool processing and fabricating metal inner lining, and the outer diameter of metal inner lining is more than the internal diameter of carbon fibre composite layer, carbon fibre composite
The size interference volume that assembling is worn between layer and metal inner lining is 0.1mm~0.2mm；Then, metal inner lining is individually immersed into liquid nitrogen
Middle cooling, cooling temperature are -205 DEG C~-195 DEG C, cool down 10~15min, take out metal inner lining measurement outer diameter, work as metal inner lining
When reduced diameter to the gap between carbon fibre composite layer internal diameter is 0.12mm~0.2mm, by carbon fibre composite layer
Metal inner lining periphery is set in, and is balanced in standing under natural conditions；Finally by the ready-made carbon fibre composite layer of being cased with
Metal inner lining assembles respectively with metal connecting tube and metal end pipe, is barrel.
Compared with prior art, the present invention has following features：
1st, the respective metal liner that the present invention develops is convenient for the cold setting with carbon fibre composite layer, and side
Threaded connection and breech and stent etc. is will pass through without carbon fibre composite winding footing to be connected.This barrel segment design
Mode can mitigate the weight of every section of barrel, be carried convenient for soldier.
2nd, the present invention proposes a kind of barrel of carbon fibre composite containing metal inner lining and its cold setting manufacturing method, utilizes gold
Belong to the characteristic that temporary contraction occurs under cryogenic for liner, the carbon fibre composite layer after assembling is made to produce metal inner lining
Raw ring orientation prestress, carbon fibre composite layer is subject to a circumferential tensile stress, and metal inner lining is subject to a circumferential compression,
So that the two contact is even closer.Corresponding barrel as gun barrel in the case where using, when transmitting makes to generate height in gun barrel
During gun pressure, huge tensile stress that circumferential compression that metal inner lining is subject to will be offset part powder gases and be brought, so as to improve gold
Belong to the force-bearing situation of liner.If, due to the presence of compression, its hair can be delayed with the presence of blind crack in metal inner lining
Exhibition process, so as to improve the fatigue performance of barrel.
3rd, barrel of the invention can make carbon fibre composite layer more undertake circumferential pressure-bearing load, give full play to carbon
The advantage of fibrous composite high intensity makes entire barrel configuration stress more reasonable.Use the low modulus of the low trade mark（Such as
T700 grades）Carbon fiber carries out reinforcing being possibly realized property, improves the economy of product.
Description of the drawings
Fig. 1 is the structure diagram of barrel rear end in the embodiment of the present invention；
Fig. 2 is the structure diagram of barrel front end in the embodiment of the present invention；
Fig. 3 is the assembling schematic diagram of metal inner lining and carbon fibre composite layer in the embodiment of the present invention.
Specific embodiment
The present invention is described in further detail below in conjunction with attached drawing embodiment.
As shown in Figures 1 to 3, the barrel of carbon fibre composite containing metal inner lining in the present embodiment can be used as launching gun barrel
It uses, including metal inner lining 2, metal end pipe, metal connecting tube 4 and carbon fibre composite layer 3, between adjacent metal liner 2
It is connected by metal connecting tube 4, metal end pipe is connected the head and the tail end of metal inner lining 2 respectively, and carbon fibre composite layer 3 is worn
In 2 periphery of metal inner lining, and carbon fibre composite layer 3 has the circumferential trend for compressing the metal inner lining 2.In the present embodiment
Metal end pipe include barrel afterbody simple metal part 1 and barrel head simple metal part 5
Metal inner lining 2 is exposed to the connection screw thread that is provided at both ends with outside carbon fibre composite layer 3, and metal inner lining 2 is distinguished
With metal connecting tube 4, barrel afterbody simple metal part 1 and the barrel head simple metal portion reinforced without carbon fibre composite layer
5 are divided to be threadedly coupled.
The barrel of said structure employs the design method of sectional, can mitigate the weight of every section of barrel, convenient for soldier
It carries.In addition, carbon fibre composite layer generates ring orientation prestress to metal inner lining, carbon fibre composite layer is subject to a ring
To tensile stress, and metal inner lining is subject to a circumferential compression, so that the two contact is even closer.
The manufacturing process of above-mentioned barrel is specifically, first, prepare metal inner lining and carbon fibre composite layer, using winding
Technique makes carbon fibre composite layer, and mechanical processing makes metal inner lining, and the outer diameter of metal inner lining is compound more than carbon fiber
The internal diameter of material layer, the size interference volume that assembling is worn between carbon fibre composite layer and metal inner lining are 0.1mm~0.2mm；
Then, metal inner lining is individually immersed in liquid nitrogen and cooled down, cooling temperature is -205 DEG C~-195 DEG C, cools down 10~15min, is taken out
Metal inner lining measure outer diameter, when metal inner lining reduced diameter between carbon fibre composite layer internal diameter gap for 0.12mm~
During 0.2mm, carbon fibre composite layer is set in metal inner lining periphery, and is balanced in standing under natural conditions；It will finally do
The good metal inner lining for being cased with carbon fibre composite layer assembles respectively with metal connecting tube and metal end pipe, is body
Pipe.
The characteristic of temporary contraction occurs under cryogenic using metal inner lining for above-mentioned cold machining process, after making assembling
Carbon fibre composite layer generates metal inner lining ring orientation prestress, and carbon fibre composite layer is subject to a circumferential tensile stress,
And metal inner lining is subject to a circumferential compression, so that the two contact is even closer, so as to improve the stress shape of metal inner lining
Condition.
Claims (2)
1. a kind of cold charge method of completing the square of the barrel of carbon fibre composite containing metal inner lining, it is characterised in that：The barrel includes
Metal inner lining, metal end pipe, metal connecting tube and carbon fibre composite layer pass through the metal between adjacent metal liner
Connecting tube connects, and metal end pipe is connected the head and the tail end of metal inner lining respectively, and the carbon fibre composite layer is set on described
Metal inner lining periphery, and the carbon fibre composite layer has the circumferential trend for compressing the metal inner lining；
The cold charge method of completing the square includes：
First, prepare metal inner lining and carbon fibre composite layer, carbon fibre composite layer, machinery are made using winding process
Processing and fabricating metal inner lining, and the outer diameter of metal inner lining is more than the internal diameter of carbon fibre composite layer, carbon fibre composite layer
The size interference volume that assembling is worn between metal inner lining is 0.1mm~0.2mm；Then, metal inner lining is individually immersed in liquid nitrogen
Cooling, cooling temperature are -205 DEG C~-195 DEG C, cool down 10~15min, metal inner lining measurement outer diameter are taken out, when outside metal inner lining
When the gap that footpath is contracted between carbon fibre composite layer internal diameter is 0.12mm~0.2mm, carbon fibre composite layer is worn
Metal inner lining periphery is placed on, and is balanced in standing under natural conditions；Finally by the ready-made gold for being cased with carbon fibre composite layer
Belong to liner to assemble with metal connecting tube and metal end pipe respectively, be barrel.
2. the cold charge method of completing the square of the barrel of the carbon fibre composite according to claim 1 containing metal inner lining, feature exist
In：The metal inner lining is exposed to the connection screw thread that is provided at both ends with outside carbon fibre composite layer, the metal inner lining and institute
It states and is threadedly coupled between metal connecting tube or metal end pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611182905.0A CN106705748B (en) | 2016-12-20 | 2016-12-20 | The cold charge method of completing the square of the barrel of the carbon fibre composite containing metal inner lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611182905.0A CN106705748B (en) | 2016-12-20 | 2016-12-20 | The cold charge method of completing the square of the barrel of the carbon fibre composite containing metal inner lining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106705748A CN106705748A (en) | 2017-05-24 |
| CN106705748B true CN106705748B (en) | 2018-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611182905.0A Active CN106705748B (en) | 2016-12-20 | 2016-12-20 | The cold charge method of completing the square of the barrel of the carbon fibre composite containing metal inner lining |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11385013B2 (en) | 2016-07-01 | 2022-07-12 | Blackpowder Products, Inc. | Hybrid carbon—steel firearm barrel |
| CN108895888A (en) * | 2018-06-28 | 2018-11-27 | 南通大学 | Prestressing force can active cooling composite material gun barrel |
| CN111577077A (en) * | 2020-05-11 | 2020-08-25 | 苏州淳熙人防设备有限公司 | Processing method of high-strength alloy for civil air defense door |
| USD1018757S1 (en) | 2020-09-17 | 2024-03-19 | Blackpowder Products, Inc. | Firearm barrel |
| CN113202745B (en) * | 2021-06-04 | 2023-03-17 | 上海盛普流体设备股份有限公司 | Method for assembling ceramic alloy steel composite structure with large length-diameter ratio and application of ceramic alloy steel composite structure in plunger pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1866405A (en) * | 2006-02-10 | 2006-11-22 | 北京诚恩电子材料有限责任公司 | Hydraulic pressure resistant, corrosion resistant, light composite cylindrical thin-walled casing and manufacturing method thereof |
| CN201021738Y (en) * | 2007-05-15 | 2008-02-13 | 上海华夏化工材料有限公司 | A carbon fiber rosin compound steel pipe |
| CN201991451U (en) * | 2011-03-11 | 2011-09-28 | 中国海洋石油总公司 | High-strength composite pipe |
| CN206399283U (en) * | 2016-12-20 | 2017-08-11 | 江苏法尔胜技术开发中心有限公司 | The barrel of carbon fibre composite containing metal inner lining |
-
2016
- 2016-12-20 CN CN201611182905.0A patent/CN106705748B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1866405A (en) * | 2006-02-10 | 2006-11-22 | 北京诚恩电子材料有限责任公司 | Hydraulic pressure resistant, corrosion resistant, light composite cylindrical thin-walled casing and manufacturing method thereof |
| CN201021738Y (en) * | 2007-05-15 | 2008-02-13 | 上海华夏化工材料有限公司 | A carbon fiber rosin compound steel pipe |
| CN201991451U (en) * | 2011-03-11 | 2011-09-28 | 中国海洋石油总公司 | High-strength composite pipe |
| CN206399283U (en) * | 2016-12-20 | 2017-08-11 | 江苏法尔胜技术开发中心有限公司 | The barrel of carbon fibre composite containing metal inner lining |
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| CN106705748A (en) | 2017-05-24 |
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