CN102837453A - 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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- CN102837453A CN102837453A CN2012102992445A CN201210299244A CN102837453A CN 102837453 A CN102837453 A CN 102837453A CN 2012102992445 A CN2012102992445 A CN 2012102992445A CN 201210299244 A CN201210299244 A CN 201210299244A CN 102837453 A CN102837453 A CN 102837453A
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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 used for transfer function power.Especially crane field, like crawler crane, ocean engineering crane etc., tensional element is indispensable especially.In the prior art, tensional element commonly used 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 quickened day by day, and this makes engineering machinery also towards large scale development.The maximization of engineering machinery is also had higher requirement to the load capacity of tensional element.Existing tensional element needs to increase self size usually for the bearing capacity that matches can be provided, and the weight of corresponding tensional element also rises thereupon.And the weight of stressed firmware is big more, and the difficulty of its dismounting and transportation is also big more.In addition, for the bigger crane of operating radius, heavy tensional element can consume elevating capacity in the long radius scope significantly like the self gravitation of steel wire rope, steel plate, steel-tube construction, and the long radius ability of crane is restricted.
Therefore, existing tensional element has the low and big defective of weight of load capacity.
Summary of the invention
In view of this, the present invention proposes a kind of tensional element, comprising: pars intermedia, and said pars intermedia comprises the carbon fibre composite body; Be arranged at the connecting portion at said pars intermedia two ends, said connecting portion comprises: core and be coated on the carbon fibre composite layer of said core surface.
Further, said core is a metal material, and said connecting portion also comprises: be arranged at the insulating barrier between said core and the said carbon fibre composite layer.
Further, said tensional element also comprises: be coated on first cushion of said carbon fibre composite surface, and/or be coated on second cushion of said core surface.
Further, said first cushion and/or said second cushion are layer of polyurethane.
Further, said tensional element also comprises conductive layer, and said conductive layer is arranged at said carbon fibre composite laminar surface, and said carbon fibre composite surface.
Further, said conductive layer is the copper wire winding.
Further, the cross section of said core is a wedge shape, and the less end of said wedge shape arc radius points to said pars intermedia.
Further, said carbon fibre composite layer and said 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, said two cores are fixed and made between said two cores reserve certain distance; Carbon fibre composite is placed between said two core surface and two cores; Obtain intermediate member; Said intermediate member comprises: carbon fibre composite body and first connecting portion that is connected in said carbon fibre composite body two ends, and said first connecting portion comprises: core and the carbon fibre composite layer that is overlying on said core surface;
B, the member that step a is obtained are heating and curing.
Further, said method also comprises the steps:
The carbon fibre composite surface of c, the member that obtains at step b prepares first cushion; And/or the carbon fibre composite laminar surface of the member that obtains at step b prepares second cushion.
Further, said step a also comprised before carbon fibre composite being placed between said two core surface and two cores: the step for preparing insulating barrier in said core surface.
Further, said step a also comprises after obtaining intermediate member: the step for preparing conductive layer in said carbon fibre composite layer and said carbon fibre composite surface.
The present invention provides a kind of tensional element; This tensional element with carbon fibre composite as material of main part; Tensional element hangs when carrying; Applied external force passes to the core of connecting portion through attaching parts, and the core holding capacity is delivered on the carbon fibre composite body of pars intermedia through the carbon fibre composite around being centered around, and obtains transmitting thereby exert all one's strength.It is low that carbon fibre composite has density, and axial strength and modulus height and the good advantage of fatigue durability improve its tensile strength thus when reducing tensional element weight, promote load-carrying properties.Therefore this tensional element has following advantage:
1, in light weight, be convenient to dismantle, install and transport; Be applied to crane, can guarantee the elevating capacity of crane under the long radius operating mode.
2, intensity and modulus are 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, because above-mentioned any tensional element has above-mentioned technique effect, therefore, the engineering machinery that is provided with this tensional element also should possess the corresponding techniques effect.
The present invention also provides a kind of preparation method of above-mentioned tensional element, can prepare light weight by this method, the tensional element that tensile strength is high.
Description of drawings
The accompanying drawing that constitutes a part of the present invention is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:
The structural representation of the tensional element that Fig. 1 provides for the embodiment of the invention 1;
Fig. 2 is carbon fibre composite body and the Wrapping formed process sketch map of carbon fibre composite layer one in the tensional element;
The structural representation of the tensional element that Fig. 3 provides for the embodiment of the invention 2;
The structural representation of the tensional element that Fig. 4 provides for the embodiment of the invention 3.
Description of reference numerals:
1 pars intermedia, 11 carbon fibre composite bodies
11a preimpregnation raw tow 12 first cushions
2 connecting portions, 21 cores
22 insulating barriers, 23 carbon fibre composite layers
23a preimpregnation precursor layer 3 conductive layer
25 second cushions
The specific embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the present invention can make up each other.
Basic thought of the present invention is: with the material of main part of carbon fibre composite as tensional element, because carbon fibre composite has light weight, advantage that tensile strength is high, reduce the weight of tensional element thus, and improve 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 invention 1 provides, and this tensional element comprises:
Pars intermedia 1, it comprises carbon fibre composite body 11 and first cushion 12 that is coated on carbon fibre composite body 11 surfaces;
Be arranged at the connecting portion 2 at pars intermedia 1 two ends, connecting portion comprises: core 21, and the carbon fibre composite layer 23 and second cushion 25 that are coated on core 21 surfaces successively.
The matrix material of the tensional element pars intermedia 1 that present embodiment provides be carbon fibre composite (Carbon Fiber Reinforced Polymer/Plastic, CFRP).Carbon fibre composite is the composite that is formed by carbon fiber and matrix resin.Wherein, carbon fiber is that phosphorus content is higher than 90% inorganic polymer fiber, and its available polyacrylonitrile fibre, pitch fibers, viscose or phenolic fibre make through carbonization.Carbon fiber has that density is low, axial strength and modulus advantages of higher, but it belongs to fragile material, with itself and matrix resin firm combine after can bring into play the excellent mechanical property of carbon fiber.Advantage such as carbon fibre composite has that density is little, specific stiffness and specific modulus height, endurance, creep resistant and linear expansion coefficient are little, its specific modulus is steel and aluminium alloy five times, its specific strength is the three to four-fold of steel and aluminium alloy.Therefore, adopt carbon fibre composite can in the weight that reduces tensional element greatly, promote the tensile property of tensional element, improve the ability of its carry load as the material of main part of pars intermedia.
Matrix resin in the above-mentioned carbon fibre composite is preferably thermosetting resin; Thermosetting resin has higher heat endurance; Also be difficult for taking place pyroplastic deformation in hot environment, therefore adopt carbon fiber/thermosetting resin can make this tensional element 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 the carbon fiber/epoxy resin material.
Though the matrix resin in the carbon fibre composite helps improving the shock resistance of carbon fiber to a certain extent, but matrix resin content reduces the load performance of tensional element as if the too high carbon fiber pull resistance loss of energy that then can cause.Thus, the content of the matrix resin in the carbon fibre composite is preferably 30% ~ 40%.
In the tensional element that present embodiment provides, also be covered with first cushion 12 on the surface of the carbon fibre composite body 11 of pars intermedia.This cushion is used to cushion foreign impacts, reduces the impulsive force that carbon fibre composite body 11 receives in operation process, and carbon fibre composite body 11 is played a protective role.First cushion 12 is preferably layer of polyurethane, and polyurethane flexible is higher, and it is drawn and produce under the situation of distortion and can be out of shape thereupon at carbon fibre composite body 11.Therefore, even adopt polyurethane can guarantee under the bigger situation of load as first cushion 12, first cushion 12 also is difficult for ftractureing.
Connecting portion 2 in this tensional element is used for linking to each other with other member, and it comprises from the inside to the outside successively: core 21, carbon fibre composite layer 23 and second cushion 25.Wherein carbon fibre composite layer 23 is similar with carbon fibre composite body 11 effects 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 in the carbon fibre composite layer 23 about the preferred version of carbon fibre composite layer, do not give unnecessary details now at this.First cushion 12 of the effect of second cushion 25 and pars intermedia 1 is similar, is used for carbon fibre composite layer 23 is played a protective role.The material of second cushion 25 and first cushion 12 can be identical, also can be different.As preferred version, second cushion 25 also is preferably layer of polyurethane.
Usually, connecting portion 2 can be provided with connecting hole, connecting axle or connecting rod and be used for linking to each other with other member, but carbon fibre material is comparatively soft usually, is difficult for the structure of the above-mentioned hole of addition, axle or bar, even be processed into cavernous structure, its rigidity also has much room for improvement.The effect of above-mentioned core 21 is: the position (being provided with connecting hole, connecting axle and connecting rod like it) that is provided for being connected with other member links to each other, and forms the skeleton structure of connecting portion 2, reduces the moulding difficulty of connecting portion 2.Core 21 is generally rigid material, like metal materials such as steel, aluminium alloys, and perhaps macromolecular material such as Merlon, ultra-high molecular weight polyethylene.
Particularly; This core 21 can comprise: core main part 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 member, specifically can be connecting hole, connecting axle or connecting rod.Carbon fibre composite can partly or entirely be coated on the surface of core 21; But the impact resistance of considering carbon fibre composite is relatively poor; And the core connecting portion need closely cooperate with connector; The impulsive force that this position receives is bigger, therefore as preferred version, only at core 21 peripheral surface (being core main part peripheral surface) carbon coated fibrous composite layer 23.
The carbon fibre composite body 11 of above-mentioned pars intermedia 1 and the carbon fibre composite layer 23 of connecting portion 2 can be one-body molded.Particularly; See also Fig. 2; Can at first the carbon fibre precursor (hereinafter to be referred as the preimpregnation precursor) of preimpregnation substrate resin solution be wound in the core at two ends; Leave a determining deviation between two cores, the surface of twining latter two core is covered with preimpregnation precursor layer 23a, is connected with pre-soaking raw tow 11a between two cores; Then again the preimpregnation precursor is wound in preimpregnation raw tow 11a surface, make combine between the carbon fibre precursor among the preimpregnation raw tow 11a more tight; With above-mentioned intermediate dried, being wound in core surface has preimpregnation precursor layer 23a to form carbon fibre composite layer 23 at last, and the preimpregnation raw tow that connects between two cores has partly formed carbon fibre composite body 11.
Twine the carbon fibre composite body 11 and carbon fibre composite layer 23 that forms for one; Be easier to combine closely for the ease of carbon fibre composite body 11 and carbon fibre composite layer 23; The cross section of core 21 is preferably wedge shape, and the less end of this wedge shape arc radius points to pars intermedia 1.In addition, be wound in core 21 for the ease of the preimpregnation precursor, core 21 also preferably is provided with groove along its circumferential direction, adds preimpregnation in man-hour precursor and is wound in the periphery of this core, and place in this groove, in the process of twining, play takes place to prevent the preimpregnation precursor.
Above-mentioned first cushion 12 and second cushion 25 are preferably one-body molded.Being layer of polyurethane with two cushions is example, and it can prepare according to following method: at carbon fibre composite body 11 and carbon fibre composite layer 23 surface-coated polyurethane coating, drying promptly gets.In addition, first cushion 12 and second cushion 25 also can be according to above-mentioned canoe moulding if adopt the rubber strip elastomeric material.Above-mentioned first cushion 12 and second cushion 25 are used for cushion that carbon fibre composite body and carbon fibre composite layer are shielded, improve the shock resistance of tensional element, prolong the service life of tensional element.It will be understood by those skilled in the art that above-mentioned first cushion 12 and second cushion 25 can not establish yet, this tensional element has higher tensile property equally.
Can know by foregoing; The tensional element that the embodiment of the invention provides with carbon fibre composite as material of main part; Tensional element hangs when carrying; Applied external force passes to the core of connecting portion through attaching parts, and the core holding capacity is delivered on the carbon fibre composite body of pars intermedia through the carbon fibre composite around being centered around, and obtains transmitting thereby exert all one's strength.It is low that carbon fibre composite has density, and axial strength and modulus height and the good advantage of fatigue durability improve its tensile strength thus when reducing tensional element weight, promote load-carrying properties.Therefore this tensional element has following advantage:
1, in light weight, be convenient to dismantle, install and transport; Be applied to crane, can guarantee the elevating capacity of crane under the long radius operating mode.
2, intensity and modulus are high, and bearing capacity is higher than existing steel wire rope, steel plate or steel pipe by force.
Fig. 3 shows the tensional element that the embodiment of the invention 2 provides, and the difference of this tensional element and embodiment 1 is: connecting portion also comprises the insulating barrier 22 that is arranged between core 21 and the carbon fibre composite layer 23, and core 21 is a metal material.
Metal material has higher rigidity, so core 21 adopts metal materials to be convenient to being connected of connecting portion and other member, and bonding strength is also higher, can improve the reliability of tensional element use.This metal material can be steel, aluminium alloy or magnesium alloy etc.
But metal material is a conductive material, and carbon fiber also has electric conductivity simultaneously, therefore if this core 21 is directly contacted with carbon fibre composite layer 23, under the environment of humidity, can produce electrode corrosion, reduces the mechanical property of connecting portion.Therefore; In the tensional element that present embodiment provides, set up insulating barrier 22 in the connecting portion, this insulating barrier places between core 21 and the carbon fibre composite layer 23; Prevent the electrode corrosion that core 21 and carbon fibre composite layer 23 produce owing to electron transfer, prolong the service life of tensional element.Above-mentioned insulating barrier can be ambroin, like phenolic resins, makes through plastic-blasting.
The tensional element that present embodiment provides has following advantage:
Connecting portion rigidity is big, be easy to be connected with other member, and bonding strength is high;
Be difficult for producing electrode corrosion, can be applicable to moist work condition environment, require also lower storage and transportation environment.
Fig. 4 shows the tensional element that the embodiment of the 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 the carbon fibre composite layer 23 and second cushion 25, and between the carbon fibre composite body 11 and first cushion 12.
The engineering machinery that part is highly higher is struck by lightning at thunderstorm weather easily, and this kind situation is prone to cause casualties, and the conductive layer of setting up 3 is used for lightning current is imported in the earth, improves the security performance of complete machine.Further, this conductive layer 3 is preferably the copper wire winding, and promptly this conductive layer 3 is wound in carbon fibre composite layer 23 and carbon fibre composite body 11 surperficial formation by copper wire.
The tensional element that present embodiment provides has anti-thunder and lightning, the advantage that security performance is high.
The embodiment of the invention also provides a kind of preparation method of above-mentioned tensional element, comprises the steps:
A), get two cores 21, said two cores 21 are fixing and make between two cores and reserve certain distance; Carbon fibre composite is placed between said two core surface and two cores, obtain intermediate member; This intermediate member comprises: carbon fibre composite body 11 and first connecting portion that is connected in its two ends, and said first connecting portion comprises: core 21 and the carbon fibre composite layer 23 that is overlying on said core surface;
B), the member that step a is obtained is heating and curing;
C), carbon fibre composite body 11 position surface preparation first cushion 12 of the member that obtains at step b, at carbon fibre composite layer 23 surface preparation second cushion 25.
In the said method, step a is the step of preparation carbon fibre composite body 11 and carbon fibre composite layer 23.As preferred version, carbon fibre composite body 11 and carbon fibre composite layer 23 are by the carbon fibre precursor wound and solidified moulding after the preimpregnation.Step a specifically can be (seeing also Fig. 2):
Two cores are fixed and make between two cores be provided with a determining deviation; Be wound in two cores successively after carbon fibre precursor immersed substrate resin solution, two core surface form preimpregnation precursor layers, form the preimpregnation raw tow before two cores; Be wound in preimpregnation raw tow surface after again carbon fibre precursor being immersed substrate resin solution, drying obtains intermediate member.
Can two cores be fixed on the wrapping machine through the bearing pin along continuous straight runs among the step a, reserve a segment distance between two cores, this reserved part is used for follow-up formation pars intermedia.Carbon fibre precursor immersed laterally behind the substrate resin solution be wound in two cores; Arrange through twining the preimpregnation raw tow along continuous straight runs that obtains in this manner; But it is loose in conjunction with comparatively; Can re-use the preimpregnation precursor thus the preimpregnation raw tow is vertically twined, combine carbon fibre composite body comparatively closely so that obtain carbon fiber.
Above-mentioned carbon fibre composite body 11 and carbon fibre composite layer 23 also can be according to following mode moulding: prepare mould according to the tensional element structure; With core 21 as in this mould; In mould, inject the carbon fibre composite liquation then, cooling curing promptly gets.
For core is the situation of metal material, and in order to prevent to produce electrode corrosion, step a also comprised before carbon fibre composite being placed between said two core surface and two cores: in the step of said core 21 surface preparation insulating barriers 22.Preferably, adopt the plastic-blasting method at core 21 surface preparation insulating barriers 22.It will be understood by those skilled in the art that the carbon fibre composite in the subsequent step should place the surface of insulating barrier accordingly.
In order to improve the lightning resistance ability of this tensional element, step a also comprises after preparing first intermediate member: in the step of carbon fibre composite layer 23 and carbon fibre composite body 11 surface preparation conductive layers 3.Preferably, this step is specially: twine wire at carbon fibre composite layer 23 and carbon fibre composite body 11 surfaces.This wire can be copper wire.
Step b makes between each layer to combine step more closely, and in order to improve the adhesion between each layer, this step is also preferably carried out under the condition of pressurization, is about to the member that step a obtains and under the condition of heating and pressurizing, is cured.The temperature of heating is preferably 200 ℃ ~ 300 ℃, and pressure is preferably 0.5Mpa ~ 3Mpa.Particularly, step b can carry out in autoclave.Obtain each layer bond strength tensional element comparatively closely after the curing.
Step c is that the member that step b makes carries out the step that surface treatment prepares cushion (first cushion and second cushion), and those skilled in the art can select concrete preparation technology according to the performance of cushioning layer material.For example: as if being the material preparation cushion with the rubber strip, then can be Wrapping formed according to the mode of above-mentioned steps a; If with polyurethane is the material preparation cushion, then can polyurethane coating be coated on second intermediate member surface, after drying, obtain the polyurethane buffering layer.The present invention preferably adopts the latter's mode to prepare cushion.
Can prepare the tensional element of embodiment 1,2 or 3 according to the method described above, this tensional element has in light weight, the advantage that intensity and modulus are high.
In order further to understand the present invention, tensional element provided by the invention and preparation method thereof is described below in conjunction with concrete technology and performance test.
[preparation tensional element]
1, get the metal core of two wedge shapes, this metal core is provided with connecting hole, carries out workmanship of spraying plastics in the peripheral surface of this metal core, obtains being covered with the metal core of insulating barrier;
2, getting the core that two steps 1 obtain is fixed on the wrapping machine through the bearing pin along continuous straight runs; Take out after carbon fibre precursor immersed epoxy resin solution, obtain the preimpregnation precursor; This preimpregnation precursor is wound in successively the peripheral surface of two cores; Core surface forms preimpregnation precursor layer; Form the preimpregnation raw tow between two cores, then again the preimpregnation precursor is wound in two preimpregnation raw tows surface, drying; Preimpregnation precursor layer forms the carbon fibre composite layer, and the preimpregnation raw tow forms the carbon fibre composite body.
Copper wire is twined in the carbon fibre composite layer of the member that 3, obtains in step 2 and carbon fibre composite surface.
4, the member that step 3 is obtained places autoclave to solidify, and it is 230 ℃ that heating-up temperature is set, and pressure is 1Mpa.
5, the component surface coated with polyurethane coating that step 4 is obtained, drying obtains tensional element.
[Mechanics Performance Testing]
Tested object:
Arm-tie A: by the tensional element of method for preparing, 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 to number A and two tensional elements of B interior arm-tie, the above-mentioned arm-tie mechanical property of test under different pulling force as the crane principal arm.
Test result: list in table 1.
Table 1 arm-tie Mechanics Performance Testing result
Can be known by table 1: with respect to existing tensional element, tensional element provided by the invention has light weight, the advantage that tensile strength is high.
The embodiment of the invention also provides a kind of engineering machinery; Crane for example, this project machinery is provided with above-mentioned any tensional element, because above-mentioned any tensional element has above-mentioned technique effect; Therefore; The engineering machinery that is provided with this tensional element also should possess the corresponding techniques effect, and its practical implementation process is similar to the above embodiments accordingly, does not give unnecessary details now.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a tensional element is characterized in that, comprising:
Pars intermedia (1), said pars intermedia (1) comprises carbon fibre composite body (11);
Be arranged at the connecting portion (2) at said pars intermedia (1) two ends, said connecting portion (2) comprising: core (21) and be coated on the carbon fibre composite layer (23) on said core (21) surface.
2. tensional element according to claim 1 is characterized in that, said core (21) is a metal material, and said connecting portion (2) also comprises: be arranged at the insulating barrier (22) between said core (21) and the said carbon fibre composite layer (23).
3. tensional element according to claim 1 is characterized in that, said tensional element also comprises:
Be coated on first cushion (12) on said carbon fibre composite body (11) surface, and/or be coated on second cushion (25) of said core surface.
4. tensional element according to claim 3 is characterized in that, said first cushion (12) and/or said second cushion (25) are layer of polyurethane.
5. tensional element according to claim 1 is characterized in that, said tensional element also comprises conductive layer (3), and said conductive layer (3) is arranged at said carbon fibre composite layer (23) surface, and said carbon fibre composite body (11) surface.
6. tensional element according to claim 5 is characterized in that, said conductive layer (3) is the copper wire winding.
7. tensional element according to claim 1 is characterized in that, the cross section of said core (21) is a wedge shape, and the less end of said wedge shape arc radius points to said pars intermedia (1).
8. according to any described tensional element of claim 1 to 7, it is characterized in that said carbon fibre composite layer (23) and said carbon fibre composite body (11) are formed in one.
9. an engineering machinery is characterized in that, is provided with any described tensional element of claim 1 to 8.
10. the preparation method of a tensional element is characterized in that, comprises the steps:
A), get two cores, said two cores are fixed and are made between said two cores reserve certain distance; Carbon fibre composite is placed between said two core surface and two cores; Obtain intermediate member; Said intermediate member comprises: carbon fibre composite body and first connecting portion that is connected in said carbon fibre composite body two ends, and said first connecting portion comprises: core and the carbon fibre composite layer that is overlying on said core surface;
B), the member that step a is obtained is heating and curing.
11. preparation method according to claim 10 is characterized in that, also comprises the steps:
The carbon fibre composite surface of the member that c), obtains at step b prepares first cushion; And/or the carbon fibre composite laminar surface of the member that obtains at step b prepares second cushion.
12. preparation method according to claim 10 is characterized in that, said step a also comprised before carbon fibre composite being placed between said two core surface and two cores:
The step for preparing insulating barrier in said core surface.
13. preparation method according to claim 10 is characterized in that, said step a also comprises after obtaining intermediate member:
The step for preparing conductive layer in said carbon fibre composite layer and said carbon fibre composite surface.
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| CN103058073A (en) * | 2013-01-07 | 2013-04-24 | 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 | Making method of carbon fiber composite material tie plate |
| CN103273651A (en) * | 2013-06-07 | 2013-09-04 | 莫凡 | Bonding method for metal member and carbon fiber composite material in aviation structure part |
| CN103286956A (en) * | 2013-06-07 | 2013-09-11 | 莫凡 | Aerial tube-shaped carbon fiber composite rod piece and manufacturing method thereof |
| CN109184074A (en) * | 2018-09-14 | 2019-01-11 | 兰州大学 | A kind of high intensity large deformation carbon fiber composite board and preparation method thereof |
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| CN103058073A (en) * | 2013-01-07 | 2013-04-24 | 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 | Making method of carbon fiber composite material tie plate |
| 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 |
| CN103273651A (en) * | 2013-06-07 | 2013-09-04 | 莫凡 | Bonding method for metal member and carbon fiber composite material in aviation structure part |
| CN103286956A (en) * | 2013-06-07 | 2013-09-11 | 莫凡 | Aerial tube-shaped carbon fiber composite rod piece and manufacturing method thereof |
| CN103286956B (en) * | 2013-06-07 | 2015-11-25 | 莫凡 | Aviation carbon fibre reinforced pipe type rod member and manufacture method thereof |
| CN109184074A (en) * | 2018-09-14 | 2019-01-11 | 兰州大学 | A kind of high intensity large deformation carbon fiber composite board and preparation 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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