CN112963722A - Metal lining carbon fiber winding composite material gas cylinder and manufacturing method thereof - Google Patents

Metal lining carbon fiber winding composite material gas cylinder and manufacturing method thereof Download PDF

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Publication number
CN112963722A
CN112963722A CN202110180882.4A CN202110180882A CN112963722A CN 112963722 A CN112963722 A CN 112963722A CN 202110180882 A CN202110180882 A CN 202110180882A CN 112963722 A CN112963722 A CN 112963722A
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carbon fiber
gas cylinder
nickel
based alloy
metal
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Inventor
于斌
赵积鹏
马天驹
张建军
张海
顾森东
杨文博
张涛
闫潇
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Lanzhou Institute of Physics of Chinese Academy of Space Technology
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Lanzhou Institute of Physics of Chinese Academy of Space Technology
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
    • F17C1/04—Protecting sheathings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0619—Single wall with two layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0648—Alloys or compositions of metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/066—Plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • F17C2203/067—Synthetics in form of fibers or filaments helically wound
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/0126—One vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/21—Shaping processes
    • F17C2209/2154—Winding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/21—Shaping processes
    • F17C2209/2181—Metal working processes, e.g. deep drawing, stamping or cutting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/221—Welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/232—Manufacturing of particular parts or at special locations of walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/234—Manufacturing of particular parts or at special locations of closing end pieces, e.g. caps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The application relates to the technical field of composite material gas cylinders, in particular to a metal lining carbon fiber winding composite material gas cylinder and a manufacturing method thereof, wherein the metal lining carbon fiber winding composite material gas cylinder comprises a nickel-based alloy lining, a carbon fiber/epoxy resin composite layer and a metal flange, wherein: the nickel-based alloy lining is formed by welding an air port connector, an air port end socket, a cylinder body, a sealing end socket and a sealing end connector; the carbon fiber/epoxy resin composite layer is wound on the outer surface of the nickel-based alloy lining; the metal flange is connected with the bottom of the sealing end socket. The gas cylinder has the advantages of simple structure, high reliability, high safety, strong bearing capacity, small body mass, wide medium storage range and strong high and low temperature environment resistance, can simultaneously meet the performance requirements of high performance factors and high fatigue life, and meets the requirements of the fields of spaceflight, aviation, ships and the like on the light high-strength composite material gas cylinder.

Description

Metal lining carbon fiber winding composite material gas cylinder and manufacturing method thereof
Technical Field
The application relates to the technical field of composite material gas cylinders, in particular to a metal lining carbon fiber wound composite material gas cylinder and a manufacturing method thereof.
Background
Compared with an all-metal gas cylinder, the composite gas cylinder has the characteristics of light weight, high strength, long load working life, safe failure mode and the like, and is widely applied to the fields of aerospace, aviation and the like. In order to meet the requirements of light weight and high strength, the gas cylinder in the fields of aerospace and the like mostly adopts the design of an ultrathin wall lining, the lining of the gas cylinder generates large plastic deformation when the gas cylinder works, the gas cylinder belongs to the design of low-cycle fatigue life, and the fatigue life is generally less than 100 times, so that the ultrathin wall lining gas cylinder cannot be used in the engineering field with high fatigue life requirements. The thinner the lining wall thickness is, the higher the gas cylinder performance factor is, and with the improvement of the gas cylinder performance factor and the fatigue life requirement in the fields of aerospace, aviation and the like, the development of an ultrathin-wall lining composite gas cylinder capable of meeting the high fatigue life requirement is urgently needed.
With the continuous development of aerospace technology, the requirement of manned lunar landing technology and the requirement of high-performance gas cylinders in the fields of carrier rockets, missiles and aviation, a multipurpose high-performance gas cylinder shaping product with strong high and low temperature environment resistance and wide storage medium range is required. The inner lining of the traditional aerospace gas cylinder adopts titanium alloy, the problem that the medium such as oxygen, hydrogen, liquid oxygen and the like cannot be stored exists, the elastic strain interval of pure titanium, aluminum alloy and stainless steel materials is narrow, the design requirement of the ultrathin-wall inner lining high-fatigue-life gas cylinder is not met, the requirements of high performance factor and high fatigue life cannot be met simultaneously, the thermal deformation temperature of resin of a composite layer of the traditional gas cylinder is low, the low-temperature mechanical property is poor, the requirement of high-low temperature environment resistance cannot be met, and therefore the multipurpose high-performance ultrathin-performance carbon fiber wound composite gas cylinder with a metal inner lining is urgently needed in.
Disclosure of Invention
Aiming at the problems in the background art, the invention provides a metal lining carbon fiber wound composite material gas cylinder and a manufacturing method thereof, which have high safety and strong bearing capacity and can simultaneously meet high performance factors and long fatigue life.
The application provides a pair of metal lining carbon fiber winding combined material gas cylinder, including nickel base alloy inside lining, carbon fiber epoxy composite bed and metal flange, wherein: the nickel-based alloy lining is formed by welding an air port end joint, an air port end head, a cylinder body, a sealing end head and a sealing end joint; the carbon fiber/epoxy resin composite layer is wound on the outer surface of the nickel-based alloy lining; the metal flange is connected with the bottom of the sealing end socket.
Further, the nickel-based alloy lining is cylindrical or spherical.
Further, the nickel-based alloy lining material adopts Inconel-718 nickel-based alloy.
Furthermore, the Inconel-718 nickel-based alloy has the tensile strength of more than or equal to 1350MPa, the yield strength of more than or equal to 1000MPa, the elastic modulus of 210GPa, the elongation at break of more than or equal to 18 percent and the reduction of area of more than or equal to 28 percent.
Furthermore, the wall thickness of the base of the nickel-based alloy lining is less than or equal to 0.7mm,
Figure BDA0002940986580000021
furthermore, the carbon fiber/epoxy resin composite layer is composed of a continuous spiral winding layer and a circumferential winding layer.
Furthermore, the fibers in the carbon fiber/epoxy resin composite layer adopt T1000 carbon fibers.
Furthermore, the tensile strength of the T1000 carbon fiber is more than or equal to 6000MPa, the elastic modulus is 290GPa, and the fracture elongation is more than or equal to 2.2%.
Furthermore, the thermal deformation temperature of the epoxy resin in the carbon fiber/epoxy resin composite layer is more than or equal to 160 ℃.
The application also provides a manufacturing method of the metal lining carbon fiber wound composite material gas cylinder, which comprises the following steps: (1) the nickel-based alloy lining is processed and manufactured by adopting the modes of hot stamping, turning, electric welding and argon arc welding; (2) filling nitrogen into the nickel-based alloy lining; (3) taking a nickel-based alloy lining as a core mold, winding by adopting T1000 carbon fiber, wherein the winding line type is annular and spiral alternate winding, the winding process is fiber wet winding, and the fiber tension control adopts a gradual decrease process from layer to layer; (4) putting the T1000 carbon fiber wound gas cylinder semi-finished product obtained in the step 3 into a curing furnace for curing, wherein a rotary curing mode is adopted, the curing temperature of the resin is not lower than 160 ℃, and the curing degree of the resin is not lower than 87%; (5) shaping the gas cylinder solidified in the step 4 by using an overpressure pre-tightening process, wherein after overpressure pressure is applied, the compressive stress of the nickel-based alloy lining of the gas cylinder reaches 60% -80% of the elastic compression limit under the pressure of 0%; (6) and (5) connecting and fixing the gas cylinder finished in the step (5) and the metal flange through bolts.
The metal lining carbon fiber winding composite material and the manufacturing method thereof provided by the invention have the following beneficial effects:
the invention has simple structure, high reliability, high safety, strong bearing capacity, small body mass, wide medium storage range and strong high and low temperature environment resistance, adopts the ultra-thin liner ring transition connection process for welding and assembling the head and the cylinder body, adopts the argon arc welding process of single-side welding and double-side forming for welding, greatly improves the weld joint forming quality of the thin-wall metal liner, the coaxiality, cylindricity and other dimensional precision of the liner, improves the liner strength and the spiral fiber winding precision, adopts the fiber tension technology and the fiber pre-tightening stress technology, improves the fiber stress exertion coefficient and the stress strain coordination of the liner and the composite layer, exerts the fiber performance to the maximum extent, solves the problem of poor exertion of the overall performance of the metal liner composite gas cylinder, and can simultaneously meet the performance requirements of high performance factors and high fatigue life, the requirements of the fields of aerospace, aviation, ships and the like on the light high-strength composite material gas cylinder are met.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
FIG. 1 is a schematic structural view of a metal-lined carbon fiber-wrapped composite gas cylinder according to the present application;
in the figure: 1-nickel base alloy lining, 11-gas port end joint, 12-gas port end joint, 13-cylinder, 14-sealing end joint, 15-sealing end joint, 2-carbon fiber/epoxy resin composite layer and 3-metal flange.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.
As shown in fig. 1, the present application provides a metal lining carbon fiber wound composite gas cylinder, which includes a nickel-based alloy lining 1, a carbon fiber/epoxy resin composite layer 2, and a metal flange 3, wherein: the nickel-based alloy lining 1 is formed by welding an air port end joint 11, an air port end seal 12, a cylinder 13, a sealing end seal 14 and a sealing end joint 15; the carbon fiber/epoxy resin composite layer 2 is wound on the outer surface of the nickel-based alloy lining 1; the metal flange 3 is connected with the bottom of the sealing end head 14.
Specifically, the metal-lined carbon fiber-wound composite gas cylinder provided by the embodiment of the application has the advantages of light weight, high strength, strong high and low temperature environment resistance, high performance factor and long fatigue life, and is mainly applied to the fields of aerospace and the like. The nickel-based alloy lining 1 is mainly used for sealing working media, serves as a core mold for winding a composite layer and provides an interface for conveying the working media and installing flange connection, the carbon fiber/epoxy resin composite layer 2 is mainly used for bearing internal pressure load, the metal flange 3 is mainly used as an installation interface of a gas cylinder, preferably made of TC4 titanium alloy material and connected with a sealing end socket 14 of the nickel-based alloy lining 1 through 3M 8 bolts.
Further, the nickel-base alloy lining 1 is cylindrical or spherical. The nickel-based alloy lining 1 can be designed and manufactured into a cylinder shape or a spherical shape, when the nickel-based alloy lining 1 is designed into the cylinder shape, the end sockets at the two ends of the lining are in an equal tension shape or an ellipsoidal shape, the carbon fiber/epoxy resin composite layer 2 consists of a continuous spiral winding layer and a circumferential winding layer, wherein the innermost layer and the outermost layer are the circumferential winding layers, and when the nickel-based alloy lining 1 is designed into the spherical shape, the carbon fiber/epoxy resin composite layer 2 adopts a plane winding line type.
Further, the nickel-based alloy lining 1 is made of Inconel-718 nickel-based alloy. The pressure load proportion shared by the lining is lower in the process from 0 pressure to working pressure of the common ultrathin-wall metal lining composite material gas cylinder, the principle of strain and displacement coordination is satisfied by the lining and a composite layer, the total elastic strain of the composite layer is far higher than the elastic strain of the lining, and the lining is easy to generate plastic strain and enters low-cycle fatigue, so that the problem of low fatigue life is solved. The Inconel-718 nickel-based alloy has the characteristics of high strength, high plasticity and wide elastic range, the Inconel-718 nickel-based alloy is adopted to manufacture the lining and a pre-tightening pressure process is applied, so that the compressive stress of the lining under 0 pressure reaches 60% -80% of the elastic compression limit, the elastic compression strain is increased, the elastic compression strain and the total elastic tensile strain of the lining under 0 pressure are greater than the elastic strain of a fiber composite layer under working pressure, therefore, the lining meets the elastic design, and the designed integral gas cylinder meets the requirement of high fatigue life. In addition, the Inconel-718 nickel-based alloy has good compatibility with low-temperature media such as high-pressure helium, nitrogen, xenon, hydrogen, oxygen, waste gas, air, liquid hydrogen, liquid oxygen and the like, and also meets the multifunctional requirement of wide medium storage range.
Furthermore, the Inconel-718 nickel-based alloy has the tensile strength of more than or equal to 1350MPa, the yield strength of more than or equal to 1000MPa, the elastic modulus of 210GPa, the elongation at break of more than or equal to 18 percent and the reduction of area of more than or equal to 28 percent. The Inconel-718 nickel-base alloy in the embodiment of the application has tensile strength of 1400MPa, yield strength of 1050MPa, elongation at break of 20% and reduction of area of 30%.
Furthermore, the wall thickness of the base of the nickel-based alloy lining 1 is less than or equal to 0.7mm,
Figure BDA0002940986580000051
the thickness of the basic wall of the nickel-based alloy lining 1 in the embodiment of the application is preferably 0.7mm, the high structural efficiency of the ultrathin-wall lining can be ensured, and the diameter is preferably 0
Figure BDA0002940986580000052
The nickel base alloy lining 1 is ensured to be always in an elastic stress strain state under the working condition.
Further, the carbon fiber/epoxy resin composite layer 2 is composed of a continuous spiral winding layer and a circumferential winding layer. The carbon fiber/epoxy resin composite layer 2 is wound by taking the nickel-based alloy lining 1 as a core mold, the winding process is fiber wet winding, the fiber tension control adopts a layer-by-layer decreasing process, the thickness of a single carbon fiber winding layer is 0.6-0.8 mm, and the total thickness of the carbon fiber/epoxy resin composite layer 2 is 5-12 mm.
Furthermore, the fibers in the carbon fiber/epoxy resin composite layer 2 adopt T1000 carbon fibers. The high-strength T1000 carbon fiber is used as a main bearing structure layer, and the requirements of light weight and high strength can be met. The resin is epoxy resin which has higher thermal deformation transformation temperature and better low temperature brittleness resistance.
Furthermore, the tensile strength of the T1000 carbon fiber is more than or equal to 6000MPa, the elastic modulus is 290GPa, and the fracture elongation is more than or equal to 2.2%. In the embodiment of the application, the tensile strength of the T1000 carbon fiber is preferably 6050MPa, and the elongation at break is preferably 2.5%.
Furthermore, the thermal deformation temperature of the epoxy resin in the carbon fiber/epoxy resin composite layer 2 is more than or equal to 160 ℃. And subsequently, the semi-finished gas cylinder needs to be cured, and during curing, the composite layer resin material needs to meet the requirements of higher thermal deformation transformation temperature and better low-temperature brittleness resistance, so that the resin curing temperature is not lower than 160 ℃, and the resin curing degree is not lower than 87%.
The application also provides a manufacturing method of the metal lining carbon fiber wound composite material gas cylinder, which comprises the following steps:
(1) the nickel-based alloy lining 1 is manufactured by adopting the modes of hot stamping, turning, electric welding and argon arc welding, firstly, an air port end joint 11, an air port end joint 12, a cylinder body 13, a sealing end joint 14 and a sealing end joint 15 are respectively manufactured, wherein the air port end joint 11 and the sealing end joint 15 are formed by adopting Inconel-718 nickel-based alloy bar stock turning, the air port end joint 12 and the sealing end joint 14 are formed by adopting plate hot stamping to form a seal head blank and then are formed by turning, the cylinder body 13 is manufactured by adopting a cylinder body 13 blank turning method, and finally, the manufactured air port joint, the air port end joint 12, the cylinder body 13, the sealing end joint 14 and the sealing end joint 15 are assembled and welded by adopting an electron beam welding process or an argon arc welding process to form the nickel-based alloy lining 1;
(2) and (3) filling nitrogen into the nickel-based alloy lining 1, wherein the nitrogen is filled to a certain pressure before winding, and the maximum stress of the nickel-based alloy lining 1 is ensured to be less than 80 percent of the stretching elastic limit. (ii) a
(3) The nickel-based alloy lining 1 is used as a core mold, T1000 carbon fiber is adopted for winding, the winding line type is annular and spiral alternate winding, the winding process is fiber wet winding, the fiber tension control adopts a gradual decrease process layer by layer, and the lining is ensured not to deform such as buckling;
(4) putting the T1000 carbon fiber wound gas cylinder semi-finished product obtained in the step 3 into a curing furnace for curing, wherein a rotary curing mode is adopted, the curing temperature of the resin is not lower than 160 ℃, and the curing degree of the resin is not lower than 87%;
(5) shaping the gas cylinder solidified in the step 4 by using an overpressure pre-tightening process, wherein after overpressure pressure is applied, the compressive stress of the nickel-based alloy lining 1 of the gas cylinder reaches 60% -80% of the elastic compression limit under the pressure of 0%;
(6) and (3) connecting and fixing the gas cylinder finished in the step (5) and the metal flange (3) through 3M 8 bolts.
The metal lining carbon fiber wound composite material gas cylinder manufactured by the method of the embodiment of the application has the working pressure of 10-30 MPa, the maximum expected working pressure of less than or equal to 40MPa, the fiber stress fracture coefficient of the gas cylinder of more than or equal to 2, the explosion coefficient of the gas cylinder of more than or equal to 2.2, the performance factor of the gas cylinder of more than or equal to 30km, the stress fracture life of the gas cylinder of more than or equal to 20 years, and the fatigue life of the gas cylinder of more than or equal to 10000 times.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art without departing from the spirit and principle of the present application, and any modifications, equivalents, improvements, etc. made therein are intended to be included within the scope of the present application.

Claims (10)

1. The utility model provides a metal lining carbon fiber winding combined material gas cylinder which characterized in that, includes nickel base alloy inside lining, carbon fiber/epoxy composite bed and metal flange, wherein:
the nickel-based alloy lining is formed by welding an air port end joint, an air port end socket, a cylinder body, a sealing end socket and a sealing end joint;
the carbon fiber/epoxy resin composite layer is wound on the outer surface of the nickel-based alloy lining;
the metal flange is connected with the bottom of the sealing end socket.
2. The metal-lined carbon fiber-wrapped composite gas cylinder according to claim 1, wherein the nickel-based alloy lining is cylindrical or spherical.
3. The metal-lined carbon fiber wrapped composite gas cylinder according to claim 2, wherein the nickel-based alloy liner material is Inconel-718 nickel-based alloy.
4. The metal-lined carbon fiber-wound composite gas cylinder according to claim 3, wherein the Inconel-718 nickel-based alloy has a tensile strength of not less than 1350MPa, a yield strength of not less than 1000MPa, an elastic modulus of 210GPa, an elongation at break of not less than 18% and a reduction of area of not less than 28%.
5. The metal-lined carbon fiber-wrapped composite gas cylinder according to claim 2, wherein the wall thickness of the base of the nickel-based alloy lining is not more than 0.7mm,
Figure FDA0002940986570000011
6. the metal-lined carbon fiber wound composite gas cylinder of claim 1, wherein the carbon fiber/epoxy composite layer is comprised of a continuous spiral wound layer and a hoop wound layer.
7. The metal-lined carbon fiber-wrapped composite gas cylinder according to claim 6, wherein the fibers in the carbon fiber/epoxy resin composite layer are T1000 carbon fibers.
8. The metal-lined carbon fiber-wound composite gas cylinder according to claim 7, wherein the tensile strength of the T1000 carbon fiber is not less than 6000MPa, the elastic modulus is 290GPa, and the elongation at break is not less than 2.2%.
9. The metal-lined carbon fiber-wrapped composite gas cylinder according to claim 8, wherein the thermal deformation temperature of the epoxy resin in the carbon fiber/epoxy resin composite layer is not less than 160 ℃.
10. A method of manufacturing a metal lined carbon fibre wound composite gas cylinder according to any one of claims 1 to 9, comprising the steps of:
(1) the nickel-based alloy lining is processed and manufactured by adopting the modes of hot stamping, turning, electric welding and argon arc welding;
(2) filling nitrogen into the nickel-based alloy lining;
(3) taking a nickel-based alloy lining as a core mold, winding by adopting T1000 carbon fiber, wherein the winding line type is annular and spiral alternate winding, the winding process is fiber wet winding, and the fiber tension control adopts a gradual decrease process from layer to layer;
(4) putting the T1000 carbon fiber wound gas cylinder semi-finished product obtained in the step 3 into a curing furnace for curing, wherein a rotary curing mode is adopted, the curing temperature of the resin is not lower than 160 ℃, and the curing degree of the resin is not lower than 87%;
(5) shaping the gas cylinder solidified in the step 4 by using an overpressure pre-tightening process, wherein after overpressure pressure is applied, the compressive stress of the nickel-based alloy lining of the gas cylinder reaches 60% -80% of the elastic compression limit under the pressure of 0%;
(6) and (5) connecting and fixing the gas cylinder finished in the step (5) and the metal flange through bolts.
CN202110180882.4A 2021-02-09 2021-02-09 Metal lining carbon fiber winding composite material gas cylinder and manufacturing method thereof Pending CN112963722A (en)

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CN113566107A (en) * 2021-07-23 2021-10-29 兰州空间技术物理研究所 Composite gas cylinder with metal composite gas port and manufacturing method thereof
CN113685718A (en) * 2021-08-27 2021-11-23 兰州空间技术物理研究所 Satellite composite gas cylinder end socket and manufacturing method thereof
CN113909806A (en) * 2021-09-23 2022-01-11 浙江蓝能燃气设备有限公司 Preparation method of large-diameter stainless steel welded liner carbon fiber fully-wound bottle type container
CN114272852A (en) * 2021-12-30 2022-04-05 郑立 Carbon fiber reinforced high-temperature high-pressure reaction container and processing method thereof
CN114272852B (en) * 2021-12-30 2024-06-04 郑立 Carbon fiber reinforced high-temperature high-pressure reaction vessel and processing method thereof
CN114935104A (en) * 2022-05-16 2022-08-23 大连理工大学 Ultrathin carbon fiber fully-wound plastic liner high-pressure hydrogen storage cylinder and manufacturing method thereof
CN114935104B (en) * 2022-05-16 2024-01-23 大连理工大学 Manufacturing method of ultrathin carbon fiber fully-wound hydrogen storage cylinder
CN114963893A (en) * 2022-06-30 2022-08-30 江苏恒神股份有限公司 Composite material shell structure and manufacturing method thereof
CN115723968A (en) * 2022-11-27 2023-03-03 兰州空间技术物理研究所 Satellite composite gas cylinder installation fixed disk
CN117774410A (en) * 2023-12-26 2024-03-29 沈阳欧施盾新材料科技有限公司 Gas cylinder capable of reducing free diffusion of gas, and preparation method and application thereof
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