CN102837453B - Tension member and preparation method and engineering machinery thereof - Google Patents
Tension member and preparation method and engineering machinery thereof Download PDFInfo
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- CN102837453B CN102837453B CN201210299244.5A CN201210299244A CN102837453B CN 102837453 B CN102837453 B CN 102837453B CN 201210299244 A CN201210299244 A CN 201210299244A CN 102837453 B CN102837453 B CN 102837453B
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Abstract
The invention discloses a tension member and the preparation method and the engineering machinery of the tension member. The tension member comprises a middle part and connecting parts, wherein the middle part comprises a carbon fiber composite material body, the connecting parts are arranged at two ends of the middle part, and each connecting part comprises a core part and a carbon fiber carbon fiber layer covering the surface of the core part. The tension member is mainly made of carbon fiber composite materials. The carbon fiber composite materials have the advantages of being low in density, high in axial strength and modulus, and good in fatigue durability. Therefore, weight of the tension member is lowered, and tensile strength and load-carrying property of the tension member are improved at the same time. The tension member has the advantages of being light in weight, and convenient to detach, install and transport. When the tension member is applied to a crane, hoisting capacity of the crane in large radius working conditions can be guaranteed. Besides, the tension member is high in strength and modulus, and the load-carrying property of the tension member is higher than that of an existing steel wire rope or a steel plate or steel tube.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of tensional element and preparation method thereof and engineering machinery.
Background technology
Tensional element is one of vitals of engineering machinery, and it is for transmitting forces.Especially crane field, as crawler crane, ocean engineering crane etc., tensional element is indispensable especially.In prior art, conventional tensional element is mainly steel wire rope, steel plate and steel pipe etc.
In recent years, along with the fast development of engineering construction, the maximization of engineering is accelerated increasingly, and this makes engineering machinery also towards maximization development.The maximization of engineering machinery is also had higher requirement to the load capacity of tensional element.Existing tensional element is in order to provide the bearing capacity matched, and usually need to increase own dimensions, the weight of corresponding tensional element also rises thereupon.And the weight of stressed firmware is larger, the difficulty of its dismounting and transport is also larger.In addition, for the crane that operating radius is larger, heavy tensional element, the self gravitation as steel wire rope, steel plate, steel-tube construction can consume elevating capacity significantly at large radius, and the large radius capabilities of crane is restricted.
Therefore, existing tensional element has the defect that load capacity is low and weight is large.
Summary of the invention
In view of this, the present invention proposes a kind of tensional element, comprising: pars intermedia, and described pars intermedia comprises carbon fibre composite body; Be arranged at the connecting portion at described pars intermedia two ends, described connecting portion comprises: core, and is coated on the carbon fiber composite layer of described core surface.
Further, described core is metal material, and described connecting portion also comprises: be arranged at the insulating barrier between described core and described carbon fiber composite layer.
Further, described tensional element also comprises: the first cushion being coated on described carbon fibre composite surface, and/or the second cushion being coated on described core surface.
Further, described first cushion and/or described second cushion are layer of polyurethane.
Further, described tensional element also comprises conductive layer, and described conductive layer is arranged at described carbon fiber composite layer surface, and described carbon fibre composite surface.
Further, described conductive layer is copper wire winding.
Further, the cross section of described core is wedge shape, and described pars intermedia is pointed in the less one end of described wedge shape arc radius.
Further, described carbon fiber composite layer and described carbon fibre composite body are formed in one.
The present invention also provides a kind of engineering machinery, is provided with above-mentioned arbitrary described tensional element.
The present invention also provides a kind of preparation method of tensional element, comprises the steps:
A, get two cores, described two cores are fixed and makes reserved certain distance between described two cores; Carbon fibre composite is placed between described two core surface and two cores, obtain intermediate member, described intermediate member comprises: carbon fibre composite body and the first connecting portion being connected to described carbon fibre composite body two ends, and described first connecting portion comprises: core and the carbon fiber composite layer being overlying on described core surface;
B, the element heats solidification that step a is obtained.
Further, said method also comprises the steps:
The first cushion is prepared in c, the carbon fibre composite surface of component obtained in step b; And/or carbon fiber composite layer surface preparation second cushion of the component to obtain in step b.
Further, described step a also comprised before being placed in by carbon fibre composite between described two core surface and two cores: the step preparing insulating barrier in described core surface.
Further, described step a also comprises after obtaining intermediate member: the step preparing conductive layer at described carbon fiber composite layer and described carbon fibre composite surface.
The invention provides a kind of tensional element, this tensional element is using carbon fibre composite as material of main part, when tensional element hangs and carries, applied external force passes to the core of connecting portion by attaching parts, core holding capacity is delivered on the carbon fibre composite body of pars intermedia by the carbon fibre composite being centered around surrounding, thus exerts all one's strength and transmitted.It is low that carbon fibre composite has density, axial strength and the advantage that modulus is high and fatigue durability is good, improves its tensile strength thus, promote load-carrying properties while reduction tensional element weight.Therefore this tensional element tool has the following advantages:
1, lightweight, be convenient to carry out dismantling, install and transporting; Be applied to crane, the elevating capacity of crane under large radius operating mode can be ensured.
2, strength and modulus is high, and bearing capacity is higher than existing steel wire rope, steel plate or steel pipe.
The present invention also provides a kind of engineering machinery, and this project machinery is provided with above-mentioned tensional element, and because any one tensional element above-mentioned has above-mentioned technique effect, therefore, the engineering machinery being provided with this tensional element also should possess corresponding technique effect.
The present invention also provides a kind of preparation method of above-mentioned tensional element, can prepare light weight by the method, the tensional element that tensile strength is high.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
The structural representation of the tensional element that Fig. 1 provides for the embodiment of the present invention 1;
Fig. 2 is carbon fibre composite body and the Wrapping formed process schematic of carbon fiber composite layer one in tensional element;
The structural representation of the tensional element that Fig. 3 provides for the embodiment of the present invention 2;
The structural representation of the tensional element that Fig. 4 provides for the embodiment of the present invention 3.
Description of reference numerals:
1 pars intermedia 11 carbon fibre composite body
11a preimpregnation raw tow 12 first cushion
2 connecting portion 21 cores
22 insulating barrier 23 carbon fiber composite layer
23a preimpregnation precursor layer 3 conductive layer
25 second cushions
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Basic thought of the present invention is: using carbon fibre composite as the material of main part of tensional element, because carbon fibre composite has light weight, advantage that tensile strength is high, reduces the weight of tensional element thus, and improves its tensile property.
Below in conjunction with accompanying drawing, each preferred embodiment of the present invention is described further:
Fig. 1 shows the tensional element that the embodiment of the present invention 1 provides, and this tensional element comprises:
Pars intermedia 1, it the first cushion 12 comprising carbon fibre composite body 11 and be coated on carbon fibre composite body 11 surface;
Be arranged at the connecting portion 2 at pars intermedia 1 two ends, connecting portion comprises: core 21, and is coated on carbon fiber composite layer 23 and second cushion 25 on core 21 surface successively.
The matrix material of the tensional element pars intermedia 1 that the present embodiment provides is carbon fibre composite (CarbonFiber Reinforced Polymer/Plastic, CFRP).Carbon fibre composite is the composite formed by carbon fiber and matrix resin.Wherein, carbon fiber be phosphorus content higher than 90% inorganic polymer fiber, its available polyacrylonitrile fibre, pitch fibers, viscose or phenolic fibre obtain through carbonization.Carbon fiber has that density is low, axial strength and modulus advantages of higher, but it belongs to fragile material, can play the mechanical property of carbon fiber excellence after itself and matrix resin firmly being combined.Carbon fibre composite has that density is little, specific stiffness and the advantage such as specific modulus is high, endurance, creep resistant and linear expansion coefficient are little, and its specific modulus is five times of steel and aluminium alloy, and its specific strength is the three to four-fold of steel and aluminium alloy.Therefore, adopt carbon fibre composite can promote the tensile property of tensional element as the material of main part of pars intermedia while the weight greatly reducing tensional element, improve the ability of its carry load.
Matrix resin in above-mentioned carbon fibre composite is preferably thermosetting resin, thermosetting resin has higher heat endurance, also not easily there is pyroplastic deformation in hot environment, therefore adopt carbon fiber/thermosetting resin this tensional element can be made can be applied to the higher environment of processing temperature as the matrix resin of carbon fibre composite.Further, above-mentioned carbon fibre composite is preferably carbon fiber/epoxy resin material.
Though the matrix resin in carbon fibre composite is conducive to the shock resistance improving carbon fiber to a certain extent, but if matrix resin content is too high, can cause carbon fiber pull resistance loss of energy, reduce the load performance of tensional element.Thus, the content of the matrix resin in carbon fibre composite is preferably 30% ~ 40%.
In the tensional element that the present embodiment provides, be also covered with the first cushion 12 on the surface of the carbon fibre composite body 11 of pars intermedia.This cushion, for cushioning foreign impacts, reduces the impulsive force that carbon fibre composite body 11 is subject in operation process, plays a protective role to carbon fibre composite body 11.First cushion 12 is preferably layer of polyurethane, and polyurethane flexible is higher, can be out of shape it produces distortion in carbon fibre composite body 11 tension thereupon.Therefore, even if adopt polyurethane can ensure that, when when load is larger, the first cushion 12 also not easily ftractures as the first cushion 12.
Connecting portion 2 in this tensional element is for being connected with other component, and it comprises from the inside to the outside successively: core 21, carbon fiber composite layer 23 and the second cushion 25.Wherein carbon fiber composite layer 23 acts on similar with the carbon fibre composite body 11 of pars intermedia 1, in order to improve the tensile property of tensional element connecting portion 2, reduces the weight of connecting portion 2 simultaneously; Identical with above-mentioned carbon fibre composite body 11 about the preferred version of carbon fiber composite layer in carbon fiber composite layer 23, hereby do not repeat at this.The effect of the second cushion 25 and the first cushion 12 of pars intermedia 1 similar, for playing a protective role to carbon fiber composite layer 23.Second cushion 25 can be identical with the material of the first cushion 12, also can be different.Preferably, the second cushion 25 is also preferably layer of polyurethane.
Generally, connecting portion 2 can be provided with connecting hole, connecting axle or connecting rod for being connected with other component, but carbon fibre material is usually comparatively soft, and the structure of not easily addition above described holes, axle or bar, even if be processed into cavernous structure, its rigidity also has much room for improvement.The effect of above-mentioned core 21 is: the position (as it is provided with connecting hole, connecting axle and connecting rod) being provided for being connected with other component is connected, and forms the skeleton structure of connecting portion 2, reduces the shaping difficulty of connecting portion 2.Core 21 is generally rigid material, as the metal material such as steel, aluminium alloy, or the macromolecular material such as Merlon, ultra-high molecular weight polyethylene.
Specifically, this core 21 can comprise: core body portion and core connecting portion, concrete structure those skilled in the art of core connecting portion can select according to the connected mode of this tensional element and other component, are specifically as follows connecting hole, connecting axle or connecting rod.Carbon fibre composite partly or entirely can be coated on the surface of core 21, but consider that the impact resistance of carbon fibre composite is poor, and core connecting portion needs to closely cooperate with connector, the impulsive force that this position is subject to is larger, therefore preferably, only at core 21 peripheral surface (i.e. core body portion peripheral surface) carbon coated fiber composite layer 23.
The carbon fibre composite body 11 of above-mentioned pars intermedia 1 and the carbon fiber composite layer 23 of connecting portion 2 can be one-body molded.Specifically, refer to Fig. 2, first the carbon fibre precursor (hereinafter referred to as preimpregnation precursor) of preimpregnation substrate resin solution can be wound in the core at two ends, stay at regular intervals between two cores, the surface being wound around latter two core is covered with preimpregnation precursor layer 23a, is connected with pre-soaking raw tow 11a between two cores; Then again preimpregnation precursor is wound in preimpregnation raw tow 11a surface, makes to combine between the carbon fibre precursor in preimpregnation raw tow 11a more tight; Finally by above-mentioned intermediate dried, being wound in core surface has preimpregnation precursor layer 23a to form carbon fiber composite layer 23, and the preimpregnation raw tow part connected between two cores defines carbon fibre composite body 11.
For the carbon fibre composite body 11 be integrally wound and carbon fiber composite layer 23, be easier to combine closely for the ease of carbon fibre composite body 11 and carbon fiber composite layer 23, the cross section of core 21 is preferably wedge shape, and one end sensing pars intermedia 1 that this wedge shape arc radius is less.In addition, be wound in core 21 for the ease of preimpregnation precursor, core 21 is also preferably provided with groove along its circumferential direction, adds the periphery that preimpregnation in man-hour precursor is wound in this core, and is placed in this groove, in the process be wound around, play occurs to prevent preimpregnation precursor.
Above-mentioned first cushion 12 and the second cushion 25 preferably one-body molded.Be layer of polyurethane for two cushions, it can be prepared as follows: at carbon fibre composite body 11 and carbon fiber composite layer 23 surface coating polyurethane coating, dry, to obtain final product.Separately, the first cushion 12 and the second cushion 25, also can be shaping according to above-mentioned canoe according to rubber strip elastomeric material.Above-mentioned first cushion 12 and the cushion of the second cushion 25 for shielding to carbon fibre composite body and carbon fiber composite layer, improve the shock resistance of tensional element, extends the service life of tensional element.It will be understood by those skilled in the art that above-mentioned first cushion 12 and the second cushion 25 also can not be established, this tensional element has higher tensile property equally.
As shown in the above, the tensional element that the embodiment of the present invention provides is using carbon fibre composite as material of main part, when tensional element hangs and carries, applied external force passes to the core of connecting portion by attaching parts, core holding capacity is delivered on the carbon fibre composite body of pars intermedia by the carbon fibre composite being centered around surrounding, thus exerts all one's strength and transmitted.It is low that carbon fibre composite has density, axial strength and the advantage that modulus is high and fatigue durability is good, improves its tensile strength thus, promote load-carrying properties while reduction tensional element weight.Therefore this tensional element tool has the following advantages:
1, lightweight, be convenient to carry out dismantling, install and transporting; Be applied to crane, the elevating capacity of crane under large radius operating mode can be ensured.
2, strength and modulus is high, and bearing capacity is by force higher than existing steel wire rope, steel plate or steel pipe.
Fig. 3 shows the tensional element that the embodiment of the present invention 2 provides, and the difference of this tensional element and embodiment 1 is: connecting portion also comprises the insulating barrier 22 be arranged between core 21 and carbon fiber composite layer 23, and core 21 is metal material.
Metal material has higher rigidity, and therefore core 21 adopts metal material to be convenient to the connection of connecting portion and other component, and bonding strength is also higher, can improve the reliability that tensional element uses.This metal material can be steel, aluminium alloy or magnesium alloy etc.
But metal material is conductive material, carbon fiber also has electric conductivity simultaneously, if therefore directly contacted with carbon fiber composite layer 23 by this core 21, can produce electrode corrosion in a humidity environment, reduces the mechanical property of connecting portion.Therefore, in the tensional element that the present embodiment provides, set up insulating barrier 22 in connecting portion, this insulating barrier is placed between core 21 and carbon fiber composite layer 23, prevent the electrode corrosion that core 21 and carbon fiber composite layer 23 produce due to electron transfer, extend the service life of tensional element.Above-mentioned insulating barrier can be ambroin, as phenolic resins, obtains through plastic-blasting.
The tensional element tool that the present embodiment provides has the following advantages:
Connecting portion rigidity is large, be easy to be connected with other component, and bonding strength is high;
Not easily produce electrode corrosion, moist work condition environment can be applicable to, require also lower to storage and transportation environment.
Fig. 4 shows the tensional element that the embodiment of the present invention 3 provides, the difference of this tensional element and embodiment 2 is: connecting portion also comprises conductive layer 3, this conductive layer 3 is arranged between carbon fiber composite layer 23 and the second cushion 25, and between carbon fibre composite body 11 and the first cushion 12.
The engineering machinery that Partial Height is higher, is easily struck by lightning at thunderstorm weather, and this kind of situation easily causes casualties, and the conductive layer 3 set up, for importing in the earth by lightning current, improves the security performance of complete machine.Further, this conductive layer 3 is preferably copper wire winding, namely this conductive layer 3 by copper wire be wound in carbon fiber composite layer 23 and carbon fibre composite body 11 surface formed.
The tensional element that the present embodiment provides has thunder-lightning, the advantage that security performance is high.
The embodiment of the present invention also provides a kind of preparation method of above-mentioned tensional element, comprises the steps:
A), get two cores 21, described two cores 21 are fixed and makes reserved certain distance between two cores; Carbon fibre composite is placed between described two core surface and two cores, obtains intermediate member; This intermediate member comprises: carbon fibre composite body 11 and the first connecting portion being connected to its two ends, and described first connecting portion comprises: core 21 and the carbon fiber composite layer 23 being overlying on described core surface;
B) the element heats solidification, step a obtained;
Carbon fibre composite body 11 portion faces of the component c), in step b obtained prepares the first cushion 12, at carbon fiber composite layer 23 surface preparation the second cushion 25.
In said method, step a is the step preparing carbon fibre composite body 11 and carbon fiber composite layer 23.Preferably, carbon fibre composite body 11 and carbon fiber composite layer 23 shaping by the carbon fibre precursor wound and solidified after preimpregnation.Step a is specifically as follows (referring to Fig. 2):
Two cores are fixed and makes to establish between two cores at regular intervals; Be wound in two cores after carbon fibre precursor being immersed substrate resin solution successively, two core surface form preimpregnation precursor layer, form preimpregnation raw tow before two cores; Preimpregnation raw tow surface is wound in after again carbon fibre precursor being immersed substrate resin solution, dry, obtain intermediate member.
Two cores can be fixed on wrapping machine in the horizontal direction by bearing pin in step a, a reserved segment distance between two cores, this reserved part is used for follow-up formation pars intermedia.After carbon fibre precursor being immersed substrate resin solution, transverse direction is wound in two cores, arrange in the horizontal direction through being wound around the preimpregnation raw tow obtained in this manner, but in conjunction with comparatively loose, preimpregnation precursor can be re-used thus longitudinal winding is carried out to preimpregnation raw tow, so that obtain carbon fiber to combine carbon fibre composite body comparatively closely.
Above-mentioned carbon fibre composite body 11 and carbon fiber composite layer 23 also can be shaping in the following manner: prepare mould according to tensional element structure, by core 21 as in this mould, then in mould, inject carbon fibre composite liquation, cooling curing, to obtain final product.
Be the situation of metal material for core, in order to prevent electrode corrosion, step a also comprised before being placed in by carbon fibre composite between described two core surface and two cores: the step preparing insulating barrier 22 on described core 21 surface.Preferably, plastic-blasting method is adopted to prepare insulating barrier 22 on core 21 surface.It will be understood by those skilled in the art that corresponding, the carbon fibre composite in subsequent step should be placed in the surface of insulating barrier.
In order to improve the anti-lightning strike performance of this tensional element, step a also comprises after preparing the first intermediate member: the step preparing conductive layer 3 at carbon fiber composite layer 23 and carbon fibre composite body 11 surface.Preferably, this step is specially: at carbon fiber composite layer 23 and carbon fibre composite body 11 surface wrap wire.This wire can be copper wire.
Step b makes to combine step more closely between each layer, and in order to improve the adhesion between each layer, this step is also preferably carried out under pressure, and the component obtained by step a is cured under the condition of heating pressurization.The temperature of heating is preferably 200 DEG C ~ 300 DEG C, and pressure is preferably 0.5Mpa ~ 3Mpa.Specifically, step b can carry out in autoclave.Each layer bond strength tensional element comparatively is closely obtained after solidification.
Step c is the step that the obtained component of step b carries out surface treatment and prepares cushion (the first cushion and the second cushion), and those skilled in the art can select concrete preparation technology according to the performance of cushioning layer material.Such as: if be that cushion prepared by material with rubber strip, then can be Wrapping formed according to the mode of above-mentioned steps a; If be that cushion prepared by material with polyurethane, then polyurethane coating can be coated on the second intermediate member surface, obtain polyurethane buffering layer after drying.The present invention preferably adopts the mode of the latter to prepare cushion.
Can prepare the tensional element of embodiment 1,2 or 3 according to the method described above, this tensional element has lightweight, the advantage that strength and modulus is high.
In order to understand the present invention further, below in conjunction with concrete technology and performance test, tensional element provided by the invention and preparation method thereof is described.
[preparing tensional element]
1, get the steel core of two wedge shapes, this steel core is provided with connecting hole, carries out workmanship of spraying plastics, obtain the steel core being covered with insulating barrier in the peripheral surface of this steel core;
2, get the core that two steps 1 obtain to be fixed in the horizontal direction on wrapping machine by bearing pin; Take out after carbon fibre precursor being immersed epoxy resin solution, obtain preimpregnation precursor; This preimpregnation precursor is wound in successively the peripheral surface of two cores, core surface forms preimpregnation precursor layer, preimpregnation raw tow is formed between two cores, then again preimpregnation precursor is wound in two preimpregnation raw tow surfaces, dry, preimpregnation precursor layer forms carbon fiber composite layer, and preimpregnation raw tow forms carbon fibre composite body.
The carbon fiber composite layer of the component 3, obtained in step 2 and carbon fibre composite surface are wound around copper wire.
4, the component that step 3 obtains is placed in autoclave to solidify, arranging heating-up temperature is 230 DEG C, and pressure is 1Mpa.
5, component surface coating polyurethane coating step 4 obtained, dry, obtain tensional element.
[Mechanics Performance Testing]
Tested object:
Arm-tie A: the tensional element prepared by said method, the sectional dimension of pars intermedia is:
Length 6000mm, section radius 40mm, area of section 1256mm
2
Weight: 25kg
Arm-tie B:B-30/WQ890D steel plate, the sectional dimension of intermediate portion is:
Cross section (long × wide) 30mm × 80mm, area of section 2400mm
2
Weight: 120kg
Test process: respectively using numbering A and B two tensional elements as arm-tie in main arm of crane, test above-mentioned arm-tie mechanical property under different pulling force.
Test result: list in table 1.
Table 1 arm-tie mechanical experimental results
As shown in Table 1: relative to existing tensional element, tensional element provided by the invention has light weight, the advantage that tensile strength is high.
The embodiment of the present invention additionally provides a kind of engineering machinery, such as crane, this project machinery is provided with any one tensional element above-mentioned, because any one tensional element above-mentioned has above-mentioned technique effect, therefore, the engineering machinery being provided with this tensional element also should possess corresponding technique effect, and its specific implementation process is similar to the above embodiments accordingly, does not hereby repeat.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a tensional element, is characterized in that, comprising:
Pars intermedia (1), described pars intermedia (1) comprises carbon fibre composite body (11) and is coated on first cushion (12) on described carbon fibre composite body (11) surface;
Be arranged at the connecting portion (2) at described pars intermedia (1) two ends, described connecting portion (2) comprising: core (21) and be coated on successively described core (21) surface carbon fiber composite layer (23) and the second cushion (25); Described connecting portion (2) also comprises the insulating barrier (22) be arranged between described core (21) and carbon fiber composite layer (23); Described core (21) is metal material.
2. tensional element according to claim 1, is characterized in that, described first cushion (12) and/or described second cushion (25) are layer of polyurethane.
3. tensional element according to claim 1, it is characterized in that, described tensional element also comprises conductive layer (3), described conductive layer (3) is arranged between described carbon fiber composite layer (23) and the second cushion (25), and between described carbon fibre composite body (11) and the first cushion (12).
4. tensional element according to claim 3, is characterized in that, described conductive layer (3) is copper wire winding.
5. tensional element according to claim 1, is characterized in that, the cross section of described core (21) is wedge shape, and described pars intermedia (1) is pointed in the less one end of described wedge shape arc radius.
6. the tensional element according to claim 1 to 5 any one, is characterized in that, described carbon fiber composite layer (23) and described carbon fibre composite body (11) are formed in one.
7. an engineering machinery, is characterized in that, is provided with the tensional element described in claim 1 to 6 any one.
8. a preparation method for tensional element, is characterized in that, comprises the steps:
A), get two cores, described two cores are fixed and makes reserved certain distance between described two cores; Carbon fibre composite is placed between described two core surface and two cores, obtain intermediate member, described intermediate member comprises: carbon fibre composite body and the first connecting portion being connected to described carbon fibre composite body two ends, and described first connecting portion comprises: core and the carbon fiber composite layer being overlying on described core surface;
B) the element heats solidification, step a obtained.
9. preparation method according to claim 8, is characterized in that, also comprises the steps:
The first cushion is prepared in the carbon fibre composite surface of the component c), obtained in step b; And/or carbon fiber composite layer surface preparation second cushion of the component to obtain in step b.
10. preparation method according to claim 8, is characterized in that, described step a also comprised before being placed in by carbon fibre composite between described two core surface and two cores:
The step of insulating barrier is prepared in described core surface.
11. preparation methods according to claim 8, is characterized in that, described step a also comprises after obtaining intermediate member:
The step of conductive layer is prepared at described carbon fiber composite layer and described carbon fibre composite surface.
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| CN103058073B (en) * | 2013-01-07 | 2015-10-28 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | A kind of manufacture method of carbon fiber composite material arm-tie |
| CN103273651B (en) * | 2013-06-07 | 2015-08-05 | 莫凡 | The associated methods of metal parts and carbon fibre composite in aviation structural member |
| CN103286956B (en) * | 2013-06-07 | 2015-11-25 | 莫凡 | Aviation carbon fibre reinforced pipe type rod member and manufacture method thereof |
| CN109184074B (en) * | 2018-09-14 | 2021-06-15 | 兰州大学 | High-strength large-deformation carbon fiber composite board and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1932315A (en) * | 2005-06-24 | 2007-03-21 | 斯奈克玛 | Mechanical part and process to manufacture such a part |
| CN201331946Y (en) * | 2009-01-12 | 2009-10-21 | 河南华泰特种电缆有限公司 | Field high-strength ultra-flexible cable |
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| JPH0342242A (en) * | 1989-07-10 | 1991-02-22 | Toyobo Co Ltd | Lightweight composite material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1932315A (en) * | 2005-06-24 | 2007-03-21 | 斯奈克玛 | Mechanical part and process to manufacture such a part |
| CN201331946Y (en) * | 2009-01-12 | 2009-10-21 | 河南华泰特种电缆有限公司 | Field high-strength ultra-flexible cable |
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