CN201590283U - Composite material core for reinforced cable and reinforced cable - Google Patents
Composite material core for reinforced cable and reinforced cable Download PDFInfo
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- CN201590283U CN201590283U CN200920177907XU CN200920177907U CN201590283U CN 201590283 U CN201590283 U CN 201590283U CN 200920177907X U CN200920177907X U CN 200920177907XU CN 200920177907 U CN200920177907 U CN 200920177907U CN 201590283 U CN201590283 U CN 201590283U
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Abstract
The utility model relates to a composite material core for a reinforced cable and a reinforced cable. The composite material core comprises an inner core and an outer layer, wherein the inner core is formed by combining fibers and a thermosetting resin; the outer layer comprises a fiber weaving tube and a thermosetting resin combined with each other; and the fiber weaving tube has a reticular structure formed by weaving a plurality of fiber bundles in the staggered manner. The staggered weaving structure can greatly enhance the lateral strength and the fatigue strength of the composite material core, prolong the service life of the composite core and a power transmission power, and completely ovoid the problem of cracking and damage of the composite core due to the twisting and the extrusion of conductors in the cable manufacturing process. Since the outer layer adopts the fiber weaving tube, the staggered structure greatly enhances the flexibility of the outer layer, and the requirement of manufacturing large-diameter composite material cores can be met.
Description
Technical field
The utility model relates to a kind of composite core, particularly a kind of composite core that is used to strengthen cable.In addition, the utility model also relates to the enhancing cable that uses composite core.
Background technology
At present, long-distance cable set up and transmission aspect, the load-supporting part of cable adopts steel core more.And adopt steel core to have many shortcoming and defect as load-supporting part.As: easily expanded by heating causes cable sagging, and the steel core self-conductive can consume a large amount of electric energy, and weight is bigger, causes the corresponding reinforcement of structure needs of power transmission tower and electric pole.
In order to solve steel core, the scheme of composite core has been proposed in the prior art as the problems that load-supporting part exists.Adopt glass fibre, carbon fiber and resin material to be composited.Not only weight is compared steel core and is alleviated greatly, and has the extremely low coefficient of expansion, does not increase the sagging of cable when cable temperature raises.Hot strength is significantly increased than steel core, can increase the tower distance.Bring into use at present.But it still has problems, because it is compound to adopt glass fibre, carbon fiber, resin material to carry out, structure is inner core and outer core, and the structure that has also is divided into inner core, intermediate layer and outer core.When composite core is being produced, transports, can bent when constructing, composite core outer layer fiber tension when crooked, fiber produces strain, and can produce bigger stress and strain with composite core cross section increase outer layer fiber, when fiber strain during greater than the fibrous fracture elongation, fiber ruptures.
Announce on December 17th, 2008 as State Intellectual Property Office, number of patent application is 200710110870.4, name is called in the utility application publication of " carbon fiber composite reinforced-core cable ", it comprises inner core and outer core.Inner core comprises carbon fiber and epoxy resin, and outer core comprises glass fibre and epoxy resin.With respect to the conventional steel core material, the utility model intensity height, wide, the handling ease of the scope of application.In the scheme of this patent application, strengthening core is divided into inner core and outer core, adopt carbon fiber in the composite material of inner core, adopt glass fibre in the composite material of outer core, when composite core is being produced, transports, can bent when constructing, composite core outer layer fiber tension when crooked, fiber produces strain, and with the increase in composite core cross section, outer layer fiber can produce bigger stress and strain, when fiber strain during greater than the fibrous fracture elongation, fiber ruptures.So can only manufacture the composite core of minor diameter.
And for example State Intellectual Property Office on January 14th, 2009 Granted publication, the patent No. is 03809284.0, name is called in the utility model patent of " aluminum conductor composite core strengthens cable and manufacture method ", the ACCC cable has the composite core that is centered on by one deck aluminium conductor at least.This composite core comprises inner core and outer core.In this patent application scheme, outer layer fiber produces the problem of ess-strain and fibrous fracture when existing in the composite core bending equally.So also can only manufacture the composite core of minor diameter. can only segmentation manufacture greater than the composite core of 10mm for manufacturing diameter, compound more afterwards, can not be one-body molded, certainly will influence intensity because tension force is irregular.
Simultaneously, except the above-mentioned shortcoming of mentioning, existing composite core also exists a problem to be, the resistance to wear of composite core and anti-aging relatively poor.Because the outer core of composite core is exposed outside, order shines and drenches with rain and the damage that wearing and tearing in the process of deployment all can cause outer core is installed, and has shortened the useful life of outer core.Bring influence to use.
In order to solve the protection question of inner core, outer core, existing composite core core outside is provided with the scheme of diaphragm outward.Announce on January 17th, 2007 as State Intellectual Property Office, number of patent application is 200480038529.7, name is called in the utility application file of " aluminum conductor composite core reinforced cable and preparation method thereof ", the ACCC cable has by outer core film and the composite core that centers on of one deck aluminium conductor at least.This composite core comprises the plurality of fibers in one or more basis materials, and this fiber is from least a fiber type.In this patent scheme, mention for the 2nd section at its Instructions Page 9 and to have protective coating or film 305 around composite core 303.Here protective coating or film 305 play protection, antiwear performance.But it only is a skim structure, and cracky and durability are relatively poor, and is coated on the outer core, comes off easily in the practical application, causes locally exposed, and situation about can not wrap up fully influences useful life of composite core.In the technical scheme of its claim 5 record, outer membrane is selected from materials such as Kapton, Teflon, Tefzel, Tedlar, Mylar, Melonix, Tednex, PEN and PET.Owing to be membrane structure, cause cable when reality is laid, diaphragm very easily weares and teares or is damaged, and in addition, diaphragm comes off in actual applications easily, causes the local not situation of parcel appearance fully.
There are a common shortcoming in above patent of giving an example and existing technology, the composite core that its enhancing cable is used has only longitudinal fiber to strengthen, and do not have transverse fiber to strengthen, and the fatigue resistance of composite core and antifatigue number of times are lower, and be affected the useful life of cable.And owing to be subjected to the extruding of aluminium conductor, composite core is easy to crack, but also can not test out when making cable, certainly will have influence on the intensity and the useful life of composite core and transmission of electricity cable.
The utility model content
In order to solve above-mentioned the problems of the prior art, the utility model provides a kind of composite core that is used to strengthen cable.Outer fiber braided tube and the thermoset resin material that is formed by braiding is composited.Because the network structure of fiber braided tube for being formed by the interlaced braiding of plurality of fibers bundle has well vertical, horizontal stretch-proof, ductility, can improve the fatigue resistance and the antifatigue number of times of composite core greatly.The situation that bends when cable production, transportation, construction can well be avoided fibrous fracture, improves the performance of cable.
In addition, the utility model also provides the enhancing cable that uses composite core.
The utility model provides, and main technical schemes that a kind of composite core that is used to strengthen cable adopts is: a kind of composite core that is used to strengthen cable, comprise inner core, skin, described inner core is composited by fiber and thermosetting resin, described skin comprises fiber braided tube and thermosetting resin, described fiber braided tube and thermosetting resin are compounded to form described skin, the network structure of described fiber braided tube for being formed by the interlaced braiding of plurality of fibers bundle, the pitch H of described fibre bundle is between 0.1mm-500mm.
The utility model provides, and a kind of composite core that is used to strengthen cable also adopts following attached technical scheme: described inner core adopts same thermosetting resin with outer, and is integrally formed;
Fiber in the described inner core comprises carbon fiber or basalt fibre or glass fibre or aramid fiber or the mixture between them; The fiber that described fiber braided tube adopts comprises basalt fibre or glass fibre or aramid fiber or their mixture; Described thermosetting resin comprises epoxy resin or modified epoxy or their mixture;
The cross section of described inner core is 1 layer or 2 layers or sandwich construction; Described cross section is the inner core of 1 layer of structure, and its fiber comprises carbon fiber or basalt fibre or glass fibre or aramid fiber or the mixture between them; Described cross section is the inner core of 2 layers or sandwich construction, and its every layer comprises carbon fiber or basalt fibre or glass fibre or aramid fiber or the mixture between them respectively;
The fiber that is comprised in described inner core and the skin accounts for 50%～85% of described composite core total weight;
Also comprise resin-rich layer, described resin-rich layer is coated on described skin, and described resin-rich layer comprises polyester felt or glass felt;
The quantity of described fiber braided tube is at least 1, and the quantity of described fiber braided tube is that 1 when above, a plurality of fiber braided tube socket-connect.
The technical scheme that the enhancing cable of the use composite core that the utility model provides adopts is: composite core, comprise inner core, skin, described inner core is composited by fiber and thermosetting resin, it is characterized in that: described skin comprises fiber braided tube and thermosetting resin, described fiber braided tube and thermosetting resin are compounded to form described skin, the network structure of described fiber braided tube for being formed by the interlaced braiding of plurality of fibers bundle, the outer surface of described composite core twists at least and is wound with one deck annealed aluminum wire.
The beneficial effect that the composite core that adopts the utility model to provide brings is: the network structure of (1) outer layer fiber woven tube for being formed by the interlaced braiding of plurality of fibers bundle efficiently solves the problem that composite core does not have transverse fiber to strengthen.Interlaced braiding structure has strengthened the transverse strength of composite core greatly, thereby improved the fatigue resistance and the antifatigue number of times of composite core greatly, prolonged the network structure of (2) outer layer fiber woven tube in useful life for forming of composite core greatly by the interlaced braiding of plurality of fibers bundle.Interlaced braiding structure has strengthened the transverse strength of composite core greatly, avoids fully in making the cable process owing to the conductor strand makes the damaged problem of composite core cracking around extruding.(3) because skin has adopted fiber establishment pipe, the structure of interlaced braiding has increased outer field flexibility greatly, can satisfy the requirement of making the major diameter composite core.(4) when the preparation composite core,, the angle of weave of woven tube vertical and horizontal is changed,, realized the designability of fiber braided tube intensity with this intensity of reconciling fiber braided tube by adjusting the angle of weave of braiding machine.Can produce with requiring according to actual needs.Applicability is better.(5) be coated with resin-rich layer at outer field outer surface.Because of resin-rich layer contains polyester felt or glass felt, can further improve the anti-wear performance of composite core, effectively the protection fiber braided tube does not does not wear and tear when power transmission cable is made and construct, even surface abrasion can the damaged fiber woven tube yet.(6) setting of resin-rich layer makes composite core more corrosion-resistant, and more resistance of rainwater washing against is more anti-aging, and the fiber in the good composite core of better protection increases the service life.The more existing diaphragm of its intensity and robustness aspect has significantly lifting.Can protect composite core and not be subjected to the influence of Exposure to Sunlight rainforest and wearing and tearing.(7) resin-rich layer has further improved the insulation degree of composite core, improves the useful life of composite core.(8) inner core, resin-rich layer and the same thermoset resin material of outer employing are compound, integrally formed, do not have layering, do not have the problem that comes off.Compare with the existing scheme of protective finish or film that adopts, not only wear-resistant, the anti-rain insolation performance is good, and the intensity height, durability is long, and composite core is played good protection, prolongs the useful life of composite core greatly.
The beneficial effect that the enhancing cable that adopts the utility model to provide brings is: the outer layer fiber woven tube has strengthened the transverse strength of composite core greatly for the network structure that is formed by the interlaced braiding of plurality of fibers bundle, thereby improved the fatigue resistance and the antifatigue number of times of cable greatly, prolonged the useful life of cable greatly.The design of fiber braided tube further promotes the flexible of composite core in the composite core skin, and anti-horizontal tensile property also significantly improves.In the bending radius requirement that also can satisfy composite core and cable aspect the composite core of production heavy in section, the one, can improve the flexibility of cable, thereby improve its operability; The 2nd, can produce heavy in section cable, increase transmission line capability.In addition, the bending that the setting of resin-rich layer produces when making cable laying, stretching can not cause the fracture of composite material core fibre, and surface wear-resistant layer can not come off yet.Thereby prolong the useful life of cable.
Description of drawings
Fig. 1 is the perspective view of the utility model composite core, and inner core, outer field structure are shown, and emphasis illustrates the network structure of fiber braided tube in the skin;
Fig. 2 is the cross section cut-away view of the utility model composite core;
Fig. 3 illustrates the structure of the resin-rich layer outside the skin for the utility model composite core has the perspective view of resin-rich layer;
Fig. 4 is the cross section cut-away view of Fig. 3;
Fig. 5 illustrates the internal layer and time layer structure of inner core for inner core in the utility model composite core is the cross section cut-away view of 2 layers of structure;
Fig. 6 is the structure chart of the utility model fiber braided tube, and emphasis illustrates the pitch structure of fibre bundle;
Fig. 7 uses the cross section cut-away view of the enhancing cable of composite core for the utility model;
Fig. 8 uses another cross section cut-away view of the enhancing cable of the composite core that includes resin-rich layer for the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description:
Extremely shown in Figure 6 as Fig. 1, a kind of composite core that is used to strengthen cable that provides for the utility model, comprise inner core 1, outer 2, described inner core 1 is composited by fiber and thermosetting resin, described outer 2 comprise fiber braided tube and thermosetting resin, described fiber braided tube and thermosetting resin are compounded to form described outer 2, the network structure of described fiber braided tube for forming by the interlaced braiding of plurality of fibers bundle, and the pitch H of described fibre bundle is between 0.1mm-500mm.
The pitch H of fibre bundle described here is meant fibre bundle when twining in the mode of helix around the surface of inner core 1, after winding with one circuit, and front and back distance apart.Concrete structure as shown in Figure 6, that root fibre bundle that lines are thicker, around after inner core 1 spiral winds with one circuit, between at interval distance H.The straight line that the starting point of this spacing distance H and terminal point draw for the axis direction along inner core 1.
Crisscross lines show the network structure that the interlaced braiding of plurality of fibers bundle forms on Fig. 1, Fig. 2, Fig. 3 ectomesoderm 2.
The network structure of outer layer fiber woven tube for being formed by the interlaced braiding of plurality of fibers bundle efficiently solves the problem that composite core does not have transverse fiber to strengthen.Interlaced braiding structure has strengthened the transverse strength of composite core greatly, the fatigue resistance and the antifatigue number of times of composite core have not only been improved greatly, prolong the useful life of composite core greatly, and avoid fully in making the cable process owing to the conductor strand makes the damaged problem of composite core cracking around extruding.The structure of interlaced braiding has increased by outer 2 flexibility greatly, can satisfy the requirement of making the major diameter composite core.
And, can change the intensity of fibrage as required by selecting the fiber braided tube of the interlaced different angles of plurality of fibers bundle, specific aim and applicability are stronger in the situation of actual production and use.
Described inner core 1 adopts same thermosetting resin with outer 2, and is integrally formed, do not have layering, do not have the problem that comes off.Fiber in the described inner core 1 comprises carbon fiber or basalt fibre or glass fibre or aramid fiber or the mixture between them.When fiber in the inner core 1 adopts mixture between them (kinds of fibers in the inner core 1 surpasses a kind of), its fiber architecture comprises to mix arranges or the storied placement dual mode.It is that inner core 1 used fiber mixing is an one that mixing is arranged, and sees it is 1 layer of structure on the cross section.Storied placement be inner core 1 used fiber by the kinds of fibers layered arrangement, on the cross section, see it is sandwich construction.As shown in Figure 5, the fiber in the inner core 1 adopts carbon fiber and glass fibre to mix and arranges according to layer mode, sees promptly to form internal layer 11 and inferior 2 layers of structure of outer 12 on the cross section.Internal layer 11 comprises carbon fiber, and inferior outer 12 comprise glass fibre.In addition, internal layer 11 and time skin 12 also can comprise multiple fiber respectively.Sandwich construction and the like.
By narration to above-mentioned inner core 1 structure, be intended to illustrate that inner core 1 can also can be the structure of 2 layers or multilayer for 1 layer single layer structure, these different structures do not influence and form outer 2 outside inner cores 1.
The fiber that described fiber braided tube adopts comprises basalt fibre or glass fibre or aramid fiber or their mixture; Described thermosetting resin comprises epoxy resin or modified epoxy or their mixture.
The section thickness of described fiber braided tube generally is controlled between the 0.1mm-1.5mm.In this interval, fiber braided tube promptly satisfies the performance of horizontal stretch-proof, distortion, also can not make composite core can not satisfy the requirement of its hot strength owing to the space that fiber braided tube takies the part longitudinal fiber.The fiber that is comprised in the described inner core 1 and outer 2 accounts for 50%～85% of described composite core total weight.The deal sum that specifically is meant fiber braided tube contained in the fiber contained in the inner core 1 and outer 2 accounts for 50%～85% of composite core total weight.Under the prerequisite that guarantees integral composite core light weight, effect such as corrosion-resistant, counter-bending reaches optimum.
The quantity of described fiber braided tube is at least 1, can be 2,3 or a plurality of.The quantity of described fiber braided tube is 1 when above, during such as 2,3, a plurality of fiber braided tube socket-connects.In actual production preparation technology, weave respectively by many braiding machines, form a plurality of fiber braided tubes and a plurality of fiber braided tube socket-connects, on the cross section, be seen as a plurality of fiber braided tubes of sandwich construction.
Except the scheme of the above-mentioned composite core that comprises inner core 1 and outer 2 that provides, composite core also comprises resin-rich layer 3, and described resin-rich layer 3 is coated on described outer 2, and described resin-rich layer 3 comprises polyester felt or glass felt.
Because of resin-rich layer 3 contains polyester felt or glass felt, can further improve the anti-wear performance of composite core, effectively the protection fiber braided tube does not does not wear and tear when power transmission cable is made and construct, even surface abrasion can the damaged fiber woven tube yet.The setting of resin-rich layer 3 makes composite core more corrosion-resistant, and more resistance of rainwater washing against is more anti-aging, and the fiber in the better protection composite core increases the service life.The more existing diaphragm of its intensity and robustness aspect has significantly lifting.Can protect the influence that composite core is not exposed to the sun and rain and weares and teares.And the insulation degree of composite core, the useful life of improving composite core have further been improved.
In addition, inner core 1, resin-rich layer 3 and outer 2 adopt same thermoset resin material compound, integrally formed, do not have layering, do not have the problem that comes off.Compare with the existing scheme of protective finish or film that adopts, not only wear-resistant, the anti-rain insolation performance is good, and the intensity height, durability is long, and composite core is played good protection, prolongs the useful life of composite core greatly.
The utility model also provides the enhancing cable that uses described composite core, as Fig. 7, shown in Figure 8, twists at least at the outer surface of composite core and to be wound with one deck annealed aluminum wire 4.The outer surface of composite core described here when composite core does not comprise resin-rich layer 3, is meant outer 2; When comprising resin-rich layer 3, be meant resin-rich layer 3.
Provide embodiment below based on above-mentioned prepared composite material.
Embodiment one: about 50 square millimeters of internal layer 1 sectional area, about 20 square millimeters of outer 2 sectional areas.Inner core 1 is selected 60 on the carbon fiber of 12K for use, and fibre diameter is 7 microns; Outer 2 select the E glass fibre for use, and fiberglass braided with 16 bundles, every bundle glass fibre is 400Tex; Select one the 16 horizontal braiding machine of ingot for use; Thermosetting resin is selected epoxy resin for use, and glass transition temperature Tg is about 125 ℃, makes curing agent with acid anhydrides, and miaow Cuo does promoter.Epoxide-resin glue proportioning: epoxy resin: methyl tetrahydro phthalic anhydride: 1-methylimidazole: zinc stearate=100: 80: 2: 2.E glass fibre weight sum in the carbon fiber in the inner core 1 and outer 2 accounts for about 50% of composite core total weight.
Is the composite core of 9.5mm with this proportioning selection in order to make external diameter, the about 1250MPa of hot strength, and the E glass fibre weight sum in the carbon fiber in the inner core 1 and outer 2 accounts for about 50% of composite core total weight.Outer 2 is fiberglass braided layer, the about 80mm of fibre bundle pitch.The power transmission line operating temperature reaches 100 ℃.
Embodiment two: about 29 square millimeters of internal layer 1 sectional area, about 2.6 square millimeters of outer 2 sectional areas.Inner core 1 is selected 46 on the carbon fiber of 12K for use, and fibre diameter is 7 microns; Outer 2 select the E glass fibre for use, and fiberglass braided with 24 bundles, every bundle glass fibre is 120 two strands; Select one the 24 horizontal braiding machine of ingot for use; Thermosetting resin is selected epoxy resin for use, and glass transition temperature Tg is about 160 ℃, makes curing agent with acid anhydrides, and miaow Cuo does promoter.Epoxide-resin glue proportioning: epoxy resin: methyl tetrahydro phthalic anhydride: 1-methylimidazole: zinc stearate=100: 80: 1.5: 2.E glass fibre weight sum in the carbon fiber in the inner core 1 and outer 2 accounts for about 75% of composite core total weight.
Is the composite core of 6.35mm with this proportioning selection in order to make external diameter, hot strength 1800MPa, and the E glass fibre weight sum in the carbon fiber in the inner core 1 and outer 2 accounts for about 75% of composite core total weight.Outer 2 is fiberglass braided layer, the about 2mm of fibre bundle pitch.The power transmission line operating temperature reaches 130 ℃.
Embodiment three: about 74 square millimeters of inner core 1 sectional area, about 52 square millimeters of outer 2 sectional areas.Inner core 1 is selected 100 on the carbon fiber of 12K for use, and fibre diameter is 50 of 7 microns and 800Tex basalt fibres, and 9 microns of fibre diameters, inner core 1 used carbon fiber and basalt fibre mix arranges; Outer 2 select two horizontal braiding machine braidings for use, and first braiding machine is 24 ingots, and second braiding machine is 16 ingots, and the braiding machine of 24 ingots is fiberglass braided with 24 bundle E, and every bundle glass fibre is 400Tex; The braiding machine of 16 ingots weaves with 16 bundle aramid fibers, and every bundle aramid fiber is selected Kevlar49 for use; Thermosetting resin is selected epoxy resin for use, and glass transition temperature Tg is about 190 ℃, makes curing agent with acid anhydrides, and miaow Cuo does promoter.Epoxide-resin glue proportioning: epoxy resin: methyl tetrahydro phthalic anhydride: 1-methylimidazole: zinc stearate: 12～14 alkyl glycidyl ethers=100: 80: 1.6: 2: 5.E glass fibre in carbon fiber in the inner core 1, the basalt fibre and outer 2, the weight sum of aramid fiber account for about 85% of composite core total weight.
Is the composite core of 12.7mm with this proportioning selection in order to make external diameter, hot strength 1950MPa, and the E glass fibre in the carbon fiber in the inner core 1, the basalt fibre and outer 2, the weight sum of aramid fiber account for about 85% of composite core total weight.Outer 2 are the fibrage layer, and the pitch of first braiding is about 450mm, and the pitch of second braiding is about 120mm.The power transmission line operating temperature reaches 160 ℃.
Embodiment four: about 50 square millimeters of inner core 1 sectional area, about 11 square millimeters of outer 2 sectional areas.Inner core 1 is selected 54 on the carbon fiber of 12K for use, and fibre diameter is 18 in the S glass fibre of 7 microns and 800Tex, 11 microns of fibre diameters, and carbon fiber and S glass fibre layered arrangement, innermost layer is a carbon fiber, inferior internal layer is the S glass fibre; Outer 2 select a vertical braiding machine braiding for use, are 48 ingot braiding machines, and glass fibre is selected 40 8 strands for use; Adopt two polyester felt that width is 15MM, felt heavily be 24 the gram/square metre; Thermosetting resin is selected modified epoxy for use, and glass transition temperature Tg is about 230 ℃, makes curing agent with acid anhydrides, and miaow Cuo does promoter.Modified epoxy glue proportioning: modified epoxy: methyl tetrahydro phthalic anhydride: 1-methylimidazole: zinc stearate=100: 80: 2: 2
Is the composite core of 8.8mm with this proportioning selection in order to make external diameter, hot strength 1750MPa, and the weight sum of the glass fibre in the carbon fiber in the inner core 1, the S glass fibre and outer 2 accounts for about 72% of composite core total weight.Outer 2 are fibrage layer, the about 0.4mm of the about 5mm section thickness of fibre bundle pitch.The power transmission line operating temperature reaches 200 ℃.
In the above-described embodiments, be the pultrude process of fiberglass because of what take, in the processing step: determine the radical of yarn by Theoretical Calculation, used yarn removes unnecessary glue by frictioning and device for squeezing glue again at glue drill traverse glue, enters mold heated and solidifies.From then on technology sees that the content of plastic emitting is can not be accurate, and because of not being quantifiable, thereby the content of yarn can not can accurately be known before doing goods, it can only be big approximate number, the exact value that draws goods yarn content detects by inustion and draws, and this value is not weigh surely, changes.Secondly, braided sleeving is resilient, and through pultrusion, the pitch of the fibre bundle definite value that neither weigh.Because the actual fabrication process characteristic causes, when relating to numerical value such as constituent content, area, thickness, pitch, because of the occurrence that records disperses, not a fixed value, so all at numerical value front use " pact " word.But do not influence the enforcement of embodiment.In the art, the numerical value that brings of the above-mentioned preparation technology fixed problem that can't weigh is known general knowledge.
In above-mentioned 4 embodiment, the composite core that embodiment 1,3,4 makes can twist as required at least around layer of aluminum conductor 4, as Fig. 7, shown in Figure 8.Generally twist, also can twist around 3 to 4 layers of annealed aluminum wire around 1～2 layer of electrician's annealed aluminum wire.The composite core that embodiment 2 makes can twist as required around 1～2 layer of electrician's annealed aluminum wire.The aluminium conductor cross section is generally circle, trapezoidal.
Claims (7)
1. composite core that is used to strengthen cable, comprise inner core (1), outer (2), it is characterized in that: described skin (2) comprises fiber braided tube, the network structure of described fiber braided tube for being formed by the interlaced braiding of plurality of fibers bundle, the pitch H of described fibre bundle is between 0.1mm-500mm.
2. composite core according to claim 1 is characterized in that: described inner core (1) adopts same thermosetting resin with outer (2), and is integrally formed.
3. composite core according to claim 1 is characterized in that: the cross section of described inner core (1) is 1 layer or 2 layers or sandwich construction.
4. a kind of enhancing cable composite core according to claim 1 is characterized in that: also comprise resin-rich layer (3), described resin-rich layer (3) is coated on described skin (2), and described resin-rich layer (3) comprises polyester felt or glass felt.
5. a kind of enhancing cable composite core according to claim 1, it is characterized in that: the section thickness of described fiber braided tube is between 0.1mm-1.5mm.
6. a kind of enhancing cable composite core according to claim 1, it is characterized in that: the quantity of described fiber braided tube is at least 1, and the quantity of described fiber braided tube is that 1 when above, a plurality of fiber braided tube socket-connect.
7. enhancing cable of using aforesaid right requirement 1 to 6 arbitrary described composite core, it is characterized in that: the outer surface of described composite core twists at least and is wound with one deck annealed aluminum wire (4).
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| CN102610314A (en) * | 2011-01-24 | 2012-07-25 | 吉夫特技术有限责任公司 | Composite core conductors and method of making the same |
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| CN102157235A (en) * | 2011-04-15 | 2011-08-17 | 江苏澳盛复合材料科技有限公司 | Carbon fiber composite core for cable and manufacturing method thereof |
| CN106298010A (en) * | 2016-09-13 | 2017-01-04 | 山东大学 | A kind of high tenacity anti-splitting carbon fibre composite wire plug and preparation method thereof |
| CN110352541A (en) * | 2017-02-13 | 2019-10-18 | 住友电装株式会社 | Guard block, vehicle high-tension bus-bar and harness |
| CN112769086A (en) * | 2021-01-19 | 2021-05-07 | 李世伟 | Novel plastic-steel composite cable pipeline, production equipment and production process |
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