CN107225768B - A kind of manufacture craft of the double-deck carbon fiber pipe with foam layer - Google Patents

A kind of manufacture craft of the double-deck carbon fiber pipe with foam layer Download PDF

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Publication number
CN107225768B
CN107225768B CN201710541296.1A CN201710541296A CN107225768B CN 107225768 B CN107225768 B CN 107225768B CN 201710541296 A CN201710541296 A CN 201710541296A CN 107225768 B CN107225768 B CN 107225768B
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carbon fiber
fiber pipe
outer layer
layer
metal joint
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CN107225768A (en
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陈子龙
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Shanghai Lingrong Mstar Technology Ltd.
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Xihua University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/005Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • B32B9/007Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/046Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D21/00Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/08Understructures, i.e. chassis frame on which a vehicle body may be mounted built up with interlaced cross members

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Laminated Bodies (AREA)
  • Moulding By Coating Moulds (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

The manufacture craft of present invention relates particularly to a kind of double-deck carbon fiber pipe with foam layer.Purpose is to provide a kind of double-deck carbon fiber pipe for the foam layer that molding is fast, bonding quality is good.The manufacture craft is the following steps are included: interior mold forming, carbon fiber pipe molding, carbon fiber pipe post-processing;The carbon fiber pipe forming step includes the molding of internal layer carbon fiber pipe, the molding of foam formable layer, outer layer carbon fiber pipe.Inside and outside carbon fiber pipe carries out a degree of bonding, raising adhesive strength with froth bed respectively;Froth bed absorbs vibration noise;It is bonding with metal joint that it is completed while each formable layer, the not concentricity problem after avoiding carbon fiber pipe and connector bonding;Glue may not flow at coupler bore in bonding process, reduce subsequent operation;It is in rotation status always when each layer bonding and molding, the glue of bonding site is more evenly distributed.

Description

A kind of manufacture craft of the double-deck carbon fiber pipe with foam layer
The application be application No. is: 201610333315.7, the applying date: 2016-05-19, patent name " one kind have bubble The divisional application of the patent of invention of the double-deck carbon fiber pipe and its manufacture craft of foam interlayer ".
Technical field
The present invention relates to carbon fiber fields, and in particular to a kind of production work of the double-deck carbon fiber pipe with foam layer Skill.
Background technique
Carbon fibre composite is gradually universal to civil field from high-end fields such as aerospaces, and carbon fiber pipe has The advantages that specific gravity is small, rigidity is big, intensity is high, corrosion-resistant is widely used in medical instrument, in sports equipment.But due to its own Characteristic keeps the mechanical connection of carbon fiber pipe extremely difficult, so then being become using glue bonding, one kind is fairly simple efficiently to be connected Connect mode.Nowadays, many steel construction pieces on automobile are just gradually replaced using carbon fiber product to mitigate weight.
The vehicle frame of truss-like automobile is formed by connecting by multiple tubing element, and traditional truss frame materials are mainly steel pipe or aluminium Compo pipe, novel truss vehicle frame uses carbon fiber pipe now, but due between carbon fiber pipe connection and carbon fiber pipe Connection with other parts is not available welding, using bonding or can only be bolted, but the intensity being bonded is smaller, and bolt Connection can then destroy the carbon filament of carbon fiber pipe, make to be easy to happen fracture when its stress, in view of these situations, be used in the prior art The carbon fiber pipe of truss vehicle frame is all to be bonded a metal joint at the both ends of carbon fiber tube body, then pass through metal joint and other Carbon fiber pipe or part are attached.
The prior art is all first to make carbon fiber pipe, then the coating glue on metal joint, then by carbon fiber pipe and Metal joint sticks together, and fabrication cycle is long.In order to facilitate connection, fit-up gap is often set between carbon fiber pipe and connector, Result in the concentricity between carbon fiber pipe and connector bigger than normal in this way, and glue is in uneven thickness, if coating glue is excessive Words, extra glue can also flow to connector for connection internal screw thread at and connector and carbon fiber pipe end face, glue curing After be very difficult to handle, cause post-processing workload increase.When carbon fiber layer is Nian Jie with glue, connector modes of emplacement is usually Horizontal positioned or vertical placement, due to the influence of gravity, glue is always unevenly distributed, and causes carbon fiber pipe Nian Jie with connector Quality decline afterwards.
Existing carbon fiber pipe is all single layer, since the thickness of carbon cloth is smaller, carbon fiber pipe often wall thickness It is smaller, noise and the no attenuation of vibration to automobile, so that the noise of truss-like automobile and vibration are larger.Carbon cloth The area Nian Jie with connector is also smaller, and in order to improve adhesive strength, generally requires to lengthen the boss of connector, with increase its with The area of carbon cloth contact, but the weight that will lead to carbon fiber pipe again in this way increases.
Summary of the invention
For the deficiency of above-mentioned monitoring device, present invention relates particularly to a kind of double-deck carbon fiber pipe with foam layer Manufacture craft.Purpose is to provide a kind of technique for sticking for the double-deck carbon fiber pipe that production cost is low, molding is fast, bonding quality is good.
For achieving the above object, the technical scheme adopted by the invention is that: a kind of double-layer carbon with foam layer The manufacture craft of fibre pipe, the double-deck carbon fiber pipe set gradually outer layer carbon fiber pipe, froth bed, interior from the outside to the inside Layer carbon fiber pipe;The both ends of the bilayer carbon fiber pipe are connect with a metal joint respectively;
The metal joint includes the first dome platform, and the second dome platform, the second dome is arranged in the first convex upper end face of truncated cone Third dome platform is arranged in platform upper surface;The lateral surface position setting first of the upper surface of the first dome platform, the second dome platform The second sealing ring is arranged in sealing ring, the upper surface of the second dome platform, the lateral surface position of third dome platform, and the third is convex Third sealing ring is arranged in the upper surface of rotary table;
The medial surface of the outer layer carbon fiber pipe is connect with the lateral surface of the second dome platform, the end face of outer layer carbon fiber pipe with The upper surface of first sealing ring is tightly connected;The medial surface of the internal layer carbon fiber pipe and third dome platform, third sealing ring Lateral surface connection;The end face of the internal layer carbon fiber pipe and the upper surface of the second sealing ring are tightly connected;
The double-deck carbon fiber pipe further includes for its molding internal model, external mold;The internal model includes being arranged most The peeling layer in outside sets gradually vacuum film layer, waterproof layer, viscous layer, the inside setting of viscous layer from peeling layer inwardly Cavernous body;The external mold is removably formed by connecting by two semicircular cylinders, and the external mold is set gradually by lateral surface to medial surface Shell, the first outer layer, the second outer layer, third outer layer, the shell, the first outer layer, the second outer layer, the mutual structure of third outer layer At detachable connection;
First outer layer, the second outer layer, third outer layer shape respectively with outer layer carbon fiber pipe, froth bed, internal layer The shape of carbon fiber pipe is adapted;
The manufacture craft of the double-deck carbon fiber pipe is the following steps are included: interior mold forming, carbon fiber pipe molding, carbon fiber Pipe post-processing;The carbon fiber pipe forming step include the molding of internal layer carbon fiber pipe, foam formable layer, outer layer carbon fiber pipe at Type;
The internal model forming step are as follows: the both ends of external mold are connect with a metal joint respectively, make third outer layer The outside face contact of medial surface and third dome platform, the end face of third outer layer and the upper surface of the second sealing ring are adjacent to, and then will Internal model penetrates in the cavity region of two metal joints and external mold;Bindless dry sand powder is successively poured into the cavernous body of internal model End, glue, then dry internal model, make corpus cavernosum, after a certain period of time when glue it is Nian Jie with dry sand solidify and cavernous body hardening, External mold is removed, and third outer layer is removed from external mold;
The internal layer carbon fiber pipe forming step are as follows: carbon cloth is successively wrapped in internal model, third dome platform it is outer On side;Then the external mold for having removed third outer layer is mounted on to the outside of carbon cloth, make the end face and second of the second outer layer The upper surface of sealing ring is close to, while the medial surface of the second outer layer is close to the lateral surface of carbon cloth;It is connect to the metal of one end Epoxy resin is poured into third permeability hole on head, the third permeability hole on the metal joint of the other end by vacuum tube successively with Knockout drum, vacuum pump connection;Vacuumizing simultaneously pressure maintaining to the region that the second outer layer, internal model, the second sealing ring surround for a period of time, makes Be wrapped in internal model, the carbon cloth on third dome platform lateral wall is cured as internal layer carbon fiber pipe, then remove external mold, and by Two outer layers are removed from external mold;
The froth bed forming step are as follows: the external mold for having removed the second outer layer is connect with metal joint again, makes The inner sidewall of one outer layer is close to the lateral wall of the second dome platform, while the lateral surface of the end face of the first outer layer and the second sealing ring It is adjacent to, then foam and coagulator is poured into the second permeability hole on the metal joint of one end, by the metal joint of the other end On second infiltration bore closure, fill foam and be solidificated in the area that the first outer layer, internal layer carbon fiber pipe, the second sealing ring surround Domain;Then external mold is removed, and the first outer layer is removed from external mold;
The outer layer carbon fiber pipe forming step are as follows: connect the external mold for having removed the first outer layer with metal joint again Connect, froth bed, the second dome platform lateral surface on wind carbon cloth, in the first permeability hole on the metal joint of Xiang Yiduan Epoxy resin is poured into, the first permeability hole on the metal joint of the other end is successively connect with knockout drum, vacuum pump by vacuum tube; Vacuumizing simultaneously pressure maintaining to the region that shell, internal model, the first sealing ring surround for a period of time, makes to be wrapped in froth bed and the first dome Carbon cloth on platform lateral surface is cured as outer layer carbon fiber pipe.
Preferably, it in the carbon fiber pipe forming step, is poured into the third permeability hole on the metal joint of Xiang Yiduan In the solidification process of epoxy resin and internal layer carbon fiber pipe, the internal layer carbon fiber pipe is at the uniform velocity rotated around its axis always; It is poured into the solidification process of foam, coagulator and froth bed in the second permeability hole on the metal joint of one end, it is described Froth bed is at the uniform velocity rotated around its axis always;Epoxy resin and outer is poured into the first permeability hole on the metal joint of one end In the solidification process of layer carbon fiber pipe, the outer layer carbon fiber pipe is at the uniform velocity rotated around its axis always.
The invention has the following advantages: carbon fiber pipe is by outer layer carbon fiber pipe, froth bed, internal layer carbon fiber pipe structure At structural strength is good, and inside and outside carbon fiber pipe is Nian Jie with metal joint respectively, increases adhesive strength;Inside and outside carbon fiber pipe It is a degree of bonding with froth bed progress respectively, keep the double-deck carbon fiber pipe structural strength more preferable;Froth bed can effectively absorb The noise between vibration and wheel and ground between wheel and vehicle body;Itself and metal joint are completed while each formable layer Bonding, the not concentricity problem after avoiding carbon fiber pipe and connector bonding;Glue may not flow at coupler bore in bonding process, The end face area of carbon fiber pipe and connector will not be flowed to, subsequent operation is reduced;It is in rotation always when each layer bonding and molding The glue of state, bonding site is more evenly distributed, and bonding quality is good.
Detailed description of the invention
Fig. 1 is the double-deck carbon fiber pipe cross-sectional view;
Fig. 2 is external mold and connector connection schematic diagram in internal model forming step;
Fig. 3 is corpus cavernosum schematic diagram in internal model forming step;
Fig. 4 is to pour into epoxy resin schematic diagram to third permeability hole in internal layer carbon fiber pipe forming step;
Fig. 5 is to pour into foam and coagulator schematic diagram to the second permeability hole in froth bed forming step;
Fig. 6 is to pour into epoxy resin schematic diagram to the first permeability hole in outer layer carbon fiber pipe forming step;
Fig. 7 is that blanking cover schematic diagram is installed in metal joint lower end surface after removing internal model;
Fig. 8 is A-A cross-sectional view in Fig. 3.
Specific embodiment
"upper" used herein, "lower", "bottom" are the vocabulary for illustrating structure of the invention for convenience and using, not right Any type of limitation of claim Composition of contents of the invention.
A kind of manufacture craft of double-deck carbon fiber pipe with foam layer as Figure 1-Figure 8, the double-layer carbon Fibre pipe sets gradually outer layer carbon fiber pipe 1, froth bed 2, internal layer carbon fiber pipe 3 from the outside to the inside;The bilayer carbon fiber The both ends of pipe are connect with a metal joint 4 respectively.
As shown in Figure 7, the metal joint 4 includes the first dome platform 51,51 upper surface of the first dome platform setting the Third dome platform 71 is arranged in two dome platforms 61,61 upper surface of the second dome platform;It is the upper surface of the first dome platform 51, second convex The lateral surface position of rotary table 61 is arranged the first sealing ring 52, the upper surface of the second dome platform 61, third dome platform 71 it is outer The second sealing ring 62 is arranged in lateral location, and third sealing ring 72 is arranged in the upper surface of the third dome platform 71;The third is close The section of seal 72 is bowl-type, and the internal diameter of the upper end is greater than the internal diameter of lower end, can allow internal model 8 and internal layer carbon fiber pipe 3 in this way Medial surface be preferably bonded.The bottom surface of first circular bosses 51 is connect with blanking cover 14, after the molding of the double-deck carbon fiber pipe, using stifled Relevant permeability hole can be sealed by lid 14.
The medial surface of the outer layer carbon fiber pipe 1 is connect with the lateral surface of the second dome platform 61, the end of outer layer carbon fiber pipe 1 Face and the upper surface of the first sealing ring 52 are tightly connected;The medial surface and third dome platform 71, third of the internal layer carbon fiber pipe 3 The lateral surface of sealing ring 72 connects;The end face of the internal layer carbon fiber pipe 3 and the upper surface of the second sealing ring 62 are tightly connected.
As shown in Figure 1, Figure 7 shows, the metal joint 4 connects along the shaft core position setting connection through-hole 41 of its axis direction It connects and internal screw thread is set in hole 41;The connection through-hole 41 of two metal joints 4 is respectively connect with a horizontal positioned rotary shaft 11, Rotary shaft 11 is connect with driving motor 12.Double-deck carbon fiber pipe can be allowed to form and its process Nian Jie with metal joint 4 in this way In always be in rotation status, allow epoxy resin distribution more evenly, improve bonding quality.
For convenience suitable epoxy resin, foam, coagulator are added in each step, while it is extra in order to prevent Epoxy resin flow into connection through-hole 41, or flow to the lateral surface and bottom face of metal joint 4, the first dome platform 51 Multiple the first permeability holes 53 circumferentially, the second permeability hole 63, third permeability hole 73 are arranged along its axial direction in bottom face;Institute The aperture in the first permeability hole 53 stated and the lateral wall of the second dome platform 61 radially direction is connect, second permeability hole 63 sequentially pass through the first dome platform 51, the second dome platform 61, the first sealing ring 62, the third permeability hole 73 and third dome The aperture connection of the lateral wall of platform 71 radially.
The double-deck carbon fiber pipe further includes for its molding internal model 8, external mold 9;As shown in Figure 8, internal model 8 includes It is arranged in outermost peeling layer 82, sets gradually vacuum film layer 83, waterproof layer 84, viscous layer inwardly from peeling layer 82 85, cavernous body 81 is arranged in the inside of viscous layer 85, and each layer of internal model 8 is elastomeric flexible plastics or elastomeric flexible composite material structure At, thus the lateral surface shape of internal model 8 can change according to the change in shape of its inside cavernous body 1, into the water by internal model 8 When cavernous body 1 softens after a certain period of time, the shape of internal model 8 can change, and cavernous body 1 can also be compressed.
The external mold 9 is removably formed by connecting by two semicircular cylinders, be can be and is distinguished in the side of two semicircular cylinders Then setting flange is bolted, be also possible to bind two semicircular cylinders using snap ring.The external mold 9 by lateral surface to Medial surface sets gradually shell 90, the first outer layer 91, the second outer layer 92, third outer layer 93, the shell 90, the first outer layer 91, Second outer layer 92, third outer layer 93 constitute detachable connection between each other, can be between endothecium structure and layer structure It is connected by way of interference fit, is also possible to endothecium structure and the mode of pin hole and pin is radially arranged in layer structure Connection.
The shell 90, the first outer layer 91, the second outer layer 92, third outer layer 93 medial surface on anti-snearing is respectively coated Layer;First outer layer 91, the second outer layer 92, third outer layer 93 shape respectively with outer layer carbon fiber pipe 1, froth bed 2, interior The shape of layer carbon fiber pipe 3 is adapted.
The manufacture craft of the double-deck carbon fiber pipe is the following steps are included: interior mold forming, carbon fiber pipe molding, carbon fiber Pipe post-processing.
Internal model forming step as shown in Figures 2 to 7, described are as follows: by the both ends of external mold 9 respectively with a metal joint 4 connections, make the medial surface of third outer layer 93 and the outside face contact of third dome platform 71, the end face of third outer layer 93 and second close The upper surface of seal 62 is adjacent to, and internal model 8 is immersed in the water a period of time, so that cavernous body 81 is softened, internal model 8 is then penetrated two In the cavity region of metal joint 4 and external mold 9;Bindless dry sand powder, glue are successively poured into the cavernous body 81 of internal model 8 Water, then dry internal model 8, make cavernous body 81 expand, after a certain period of time when glue it is Nian Jie with dry sand solidify and cavernous body 81 hardening, External mold 9 is removed, and third outer layer 93 is removed from external mold 9.
The carbon fiber pipe forming step include the molding of internal layer carbon fiber pipe, foam formable layer, outer layer carbon fiber pipe at Type;
The internal layer carbon fiber pipe forming step are as follows: carbon cloth is successively wrapped in internal model 8, third dome platform 71 On lateral surface;Then the external mold 9 for having removed third outer layer 93 is mounted on to the outside of carbon cloth, the end face of the second outer layer 92 with The upper surface of second sealing ring 62 is close to, while the medial surface of the second outer layer 92 is close to the lateral surface of carbon cloth;Then to Epoxy resin, the third permeability hole on the metal joint 4 of the other end are poured into third permeability hole 73 on the metal joint 4 of one end 73 are successively connect with knockout drum, vacuum pump by vacuum tube;Start vacuum pump, driving motor 12, to the second outer layer 92, internal model 8, The region that second sealing ring 62 surrounds, which vacuumizes simultaneously pressure maintaining, for a period of time, makes epoxy resin be evenly arranged on internal model 8, third dome platform 71 On carbon cloth on lateral wall, while carbon cloth is in rotation status always, makes being more evenly distributed for epoxy resin.Due to Provided with the second sealing ring 62, third sealing ring 72, so that epoxy resin is only in the outside of third outer layer 93 medial surface and internal model 8 Region flowing between face, and can not flow in connection through-hole 41, it can not also flow on the lateral surface of the first circular bosses 51.Work as carbon After fiber cloth is cured as internal layer carbon fiber pipe 3, closes vacuum pump, driving motor 12, remove external mold 9, and by the second outer layer 92 from It is removed on external mold 9.
The froth bed forming step are as follows: the external mold 9 for having removed the second outer layer 92 is connect with metal joint 4 again, It is close to the inner sidewall of the first outer layer 91 and the lateral wall of the second dome platform 61, while the end face of the first outer layer 91 and the second sealing The lateral surface of circle 62 is adjacent to, and then pours into foam and coagulator in the second permeability hole 63 on the metal joint 4 of one end, will be another The second permeability hole 63 on the metal joint 4 of one end is closed, while starting driving motor, and foam is made to fill and be solidificated in outside first The region that layer 91, internal layer carbon fiber pipe 3, the second sealing ring 62 surround, due to being provided with the second sealing ring 62, third sealing ring 72, so that the area filling of foam and coagulator between 92 medial surface of the second outer layer and the lateral surface of internal model 8, and can not flow Into connection through-hole 41, can not also flow on the lateral surface of the first circular bosses 51.Remove external mold 9 after foam curing, and by One outer layer 91 is removed from external mold 9.
The outer layer carbon fiber pipe forming step are as follows: will remove the external mold 9 of the first outer layer 91 again with metal joint 4 Connection, froth bed 2, the second dome platform 61 lateral surface on wind carbon cloth, on the metal joint 4 of Xiang Yiduan first seep Epoxy resin is poured into open-work 53, the first permeability hole 53 on the metal joint 4 of the other end by vacuum tube successively with knockout drum, Vacuum pump connection;Start vacuum pump, driving motor 12, the region surrounded to shell 90, internal model 8, the first sealing ring 52 vacuumizes And pressure maintaining is for a period of time, rotates the carbon cloth being wrapped on 51 lateral surface of froth bed 2 and the first dome platform and is cured as outer Layer carbon fiber pipe 1.
The carbon fiber pipe post-processing step are as follows: breaking glue solution is poured into cavernous body 81, it, will after the softening of cavernous body 81 Internal model 8 is taken out, and is then mounted on blanking cover 14 on the bottom face of first dome platform 51.
In the carbon fiber pipe forming step, epoxy is poured into the third permeability hole 73 on the metal joint 4 of Xiang Yiduan In the solidification process of resin and internal layer carbon fiber pipe 3, the internal layer carbon fiber pipe 3 is at the uniform velocity rotated around its axis always;To It is poured into the solidification process of foam, coagulator and froth bed 2 in the second permeability hole 63 on the metal joint 4 of one end, it is described Froth bed 2 at the uniform velocity rotated around its axis always;Epoxy resin is poured into the first permeability hole 53 on the metal joint 4 of one end And in the solidification process of outer layer carbon fiber pipe 1, the outer layer carbon fiber pipe 1 is at the uniform velocity rotated around its axis always.In this way may be used To allow epoxy resin, foam, coagulator in cured uniform circumference in the process, the influence of gravity is overcome, the effect of bonding is made More preferably.

Claims (2)

1. a kind of manufacture craft of the double-deck carbon fiber pipe with foam layer, the double-deck carbon fiber pipe is from the outside to the inside Set gradually outer layer carbon fiber pipe (1), froth bed (2), internal layer carbon fiber pipe (3);The both ends difference of the bilayer carbon fiber pipe It is connect with a metal joint (4);
The metal joint (4) includes the first dome platform (51), and the second dome platform is arranged in the first dome platform (51) upper surface (61), the second dome platform (61) upper surface setting third dome platform (71);It is the upper surface of the first dome platform (51), second convex The first sealing ring (52) are arranged in the lateral surface position of rotary table (61), the upper surface of the second dome platform (61), third dome platform (71) the second sealing ring (62) are arranged in lateral surface position, and third sealing ring is arranged in the upper surface of the third dome platform (71) (72);
The medial surface of the outer layer carbon fiber pipe (1) is connect with the lateral surface of the second dome platform (61), outer layer carbon fiber pipe (1) The upper surface of end face and the first sealing ring (52) is tightly connected;The medial surface and third dome platform of the internal layer carbon fiber pipe (3) (71), the lateral surface connection of third sealing ring (72);The end face of the internal layer carbon fiber pipe (3) is upper with the second sealing ring (62) End face seal connection;
The double-deck carbon fiber pipe further includes for its molding internal model (8), external mold (9);The internal model (8) includes setting In outermost peeling layer (82), vacuum film layer (83), waterproof layer (84), viscosity are set gradually inwardly from peeling layer (82) Cavernous body (81) are arranged in the inside of layer (85), viscous layer (85);The external mold (9) removably connected by two semicircular cylinders and At the external mold (9) sets gradually shell (90), the first outer layer (91), the second outer layer (92), third by lateral surface to medial surface Outer layer (93), the shell (90), the first outer layer (91), the second outer layer (92), third outer layer (93) constitute removable between each other Unload the connection of formula;
First outer layer (91), the second outer layer (92), third outer layer (93) shape respectively with outer layer carbon fiber pipe (1), Froth bed (2), the shape of internal layer carbon fiber pipe (3) are adaptable;
It is characterized by: the manufacture craft of the double-deck carbon fiber pipe the following steps are included: interior mold forming, carbon fiber pipe at Type, carbon fiber pipe post-processing;The carbon fiber pipe forming step includes the molding of internal layer carbon fiber pipe, foam formable layer, outer layer Carbon fiber pipe molding;
The internal model forming step are as follows: the both ends of external mold (9) are connect with a metal joint (4) respectively, make third outer layer (93) the outside face contact of medial surface and third dome platform (71), end face and the second sealing ring (62) of third outer layer (93) Upper surface is adjacent to, and is then penetrated internal model (8) in the cavity region of two metal joints (4) and external mold (9);To internal model (8) Bindless dry sand powder, glue are successively poured into cavernous body (81), then dries internal model (8), expand cavernous body (81), one When glue solidification Nian Jie with dry sand and cavernous body (81) hardens after fixing time, remove external mold (9), and by third outer layer (93) from outer Mould is removed on (9);
The internal layer carbon fiber pipe forming step are as follows: carbon cloth is successively wrapped in internal model (8), third dome platform (71) On lateral surface;The external mold (9) for having removed third outer layer (93) is then mounted on to the outside of carbon cloth, makes the second outer layer (92) End face be close to the upper surface of the second sealing ring (62), while the lateral surface of the medial surface of the second outer layer (92) and carbon cloth It is close to;Epoxy resin, the metal joint (4) of the other end are poured into third permeability hole (73) on the metal joint (4) of one end On third permeability hole (73) successively connect with knockout drum, vacuum pump by vacuum tube;To the second outer layer (92), internal model (8), The region that two sealing rings (62) surround vacuumizes simultaneously pressure maintaining for a period of time, makes to be wrapped in internal model (8), third dome platform (71) outside Carbon cloth on wall is cured as internal layer carbon fiber pipe (3), then removes external mold (9), and by the second outer layer (92) from external mold (9) Upper dismounting;
The froth bed forming step are as follows: connect the external mold (9) for having removed the second outer layer (92) with metal joint (4) again It connects, is close to the inner sidewall of the first outer layer (91) and the lateral wall of the second dome platform (61), while the end face of the first outer layer (91) It is adjacent to the lateral surface of the second sealing ring (62), is then poured into the second permeability hole (63) on the metal joint (4) of one end Foam and coagulator close the second permeability hole (63) on the metal joint (4) of the other end, fill foam and are solidificated in the The region that one outer layer (91), internal layer carbon fiber pipe (3), the second sealing ring (62) surround;Then it removes external mold (9), and by first Outer layer (91) is removed from external mold (9);
The outer layer carbon fiber pipe forming step are as follows: will remove the external molds (9) of the first outer layer (91) again with metal joint (4) connect, froth bed (2), the second dome platform (61) lateral surface on wind carbon cloth, the metal joint (4) of Xiang Yiduan On the first permeability hole (53) in pour into epoxy resin, the first permeability hole (53) on the metal joint (4) of the other end passes through true Blank pipe is successively connect with knockout drum, vacuum pump;The region surrounded to shell (90), internal model (8), the first sealing ring (52) vacuumizes And pressure maintaining is for a period of time, and the carbon cloth being wrapped on froth bed (2) and first dome platform (51) lateral surface is made to be cured as outer layer Carbon fiber pipe (1).
2. a kind of manufacture craft of double-deck carbon fiber pipe with foam layer according to claim 1, it is characterised in that: In the carbon fiber pipe forming step, epoxy resin is poured into the third permeability hole (73) on the metal joint (4) of Xiang Yiduan And in the solidification process of internal layer carbon fiber pipe (3), the internal layer carbon fiber pipe (3) is at the uniform velocity rotated around its axis always;To The solidification process of foam, coagulator and froth bed (2) is poured into the second permeability hole (63) on the metal joint (4) of one end In, the froth bed (2) is at the uniform velocity rotated around its axis always;The first permeability hole (53) on the metal joint (4) of one end In pour into the solidification process of epoxy resin and outer layer carbon fiber pipe (1), the outer layer carbon fiber pipe (1) is always around its axis Line at the uniform velocity rotates.
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