CN103413629A - Electric transmission line carbon fiber composite core manufacturing method - Google Patents

Electric transmission line carbon fiber composite core manufacturing method Download PDF

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Publication number
CN103413629A
CN103413629A CN2013103729786A CN201310372978A CN103413629A CN 103413629 A CN103413629 A CN 103413629A CN 2013103729786 A CN2013103729786 A CN 2013103729786A CN 201310372978 A CN201310372978 A CN 201310372978A CN 103413629 A CN103413629 A CN 103413629A
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carbon fiber
fiber
heating
core
temperature
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陆鸽
俞小东
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SUZHOU SUYUE NEW MATERIAL Co Ltd
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SUZHOU SUYUE NEW MATERIAL Co Ltd
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Abstract

An electric transmission line carbon fiber composite core manufacturing method mainly includes the following steps of conducting preprocessing, dehumidification and glue infiltration, pre-hardening carbon fibers in a two-section heating mode, enabling high-strength glass fibers or basalt fibers to cover a pre-hardened carbon fiber core according to certain rules, hardening the carbon fiber core covered by the high-strength glass fibers or the basalt fibers in a three-section mode, and conducting post curing and cooling, wherein consumed epoxy resin is high-temperature-resistant special type pultrusion epoxy resin which is prepared by adding modified anhydride compounds in the glue infiltration process. The electric transmission line carbon fiber composite core manufacturing method has the advantages that the carbon fibers are preformed in a pultrusion mode to be in a semi-hardened state after being infiltrated, heating temperature sections are controlled so that the carbon fiber core with excellent performance can be obtained, particularly, heating and hardening are conducted in the three-section mode in the final covering and forming process, therefore, the rigidity of final products is ensured, the smoothness of production and production efficiency are improved, and the carbon fiber composite core produced through combination can completely meet the requirements of electric power transmission.

Description

A kind of electric power line carbon fiber compound core manufacture method
Technical field
The present invention relates in a kind of transmission line bear the manufacture method of the heart yearn of cable weight between two steel towers, particularly a kind of manufacture method of composite material core wire, specifically a kind of electric power line carbon fiber compound core manufacturing process.
Background technology
Since 1800, start, overhead power transmission seldom has large innovation with wire, wherein with aluminium steel conductor use amount maximum, as the steel strand wire of bearing overhead power transmission cable weight, this steel strand wire not only weight own are large, and easily because of magnetic loss and thermal effect, cause the line loss of outlet line, and the tensile strength of steel strand wire is not high in addition, weight that can not load-bearing ice and snow, easily cause collapse of iron tower under bad weather.There is the people to propose to utilize carbon fiber complex core to replace steel strand wire according to the characteristic of composite material for this reason, give full play to that it is lightweight, intensity is high, without magnetic loss, advantage that cost is low, but be difficult to realize owing to lacking corresponding manufacture method and equipment.
Summary of the invention
The objective of the invention is to be badly in need of for current power transmission line the problem of carbon fiber complex core, a kind of manufacturing method of carbon fiber composite core for the transmission line cable is provided.
The present invention adopts following technical scheme:
A kind of electric power line carbon fiber compound core manufacture method, comprise the steps:
Step 1: a kind of manufacturing equipment of carbon fiber complex core for transmission line is provided, and this equipment comprises: creel, collection yarn device, moisture separator, impregnated carbon fiber device, high-strength glass fibre infuser, the front mould yarn guide, front mould, front mould heater, the front mould spreader, the rear mold yarn guide, heater, rear mold, rear heater, the air cooling device of solidifying;
Step 2: preliminary treatment: adjust tension force and the linearity of carbon fiber and high strength glass fiber or Black Warrior fiber, the tension force that makes carbon fiber and high strength glass fiber or Black Warrior fiber is consistent and meet technological requirement, the linearity had respectively;
Step 3: dry: from the uniform velocity involving on creel, make it enter in moisture separator and remove moisture through collection yarn device carbon fiber and high strength glass fiber or Black Warrior fiber, and control fiber moisture and be not more than 3%, improve the goods mechanical strength;
Step 4: infiltrate gluing: the carbon fiber after drying is sent in the impregnated carbon fiber device and is infiltrated gluing with straight-line, and the translational speed that infiltrates gluing is controlled between 400~600mm/min; High strength glass fiber after drying or Black Warrior fiber are twisted with the fingers to cluster type and sent in the high-strength glass fibre infuser and infiltrate gluing to increase, and the translational speed that infiltrates gluing is controlled between 400~600mm/min; The epoxy resin used adds for adopting the fire resistant special type pultrusion epoxy resin that the modified anhydride compound is made;
Step 5: precuring: the carbon fiber that makes to scribble glue through infiltration enters in front mould and carries out precuring after the front mould yarn guide is removed surplus glue, control the heating-up temperature of front mould, form two sections heating, wherein the heating-up temperature of a section near the front mould yarn guide is 35 ℃-45 ℃, the heating-up temperature of another section is 70 ℃-90 ℃, make simultaneously to keep between two bringing-up sections the interval of 20-40cm, obtain the carbon fiber core of precuring;
Step 6: dividing sinker coats: make to enter in the front mould spreader together with high strength glass fiber through infiltrating gluing or Black Warrior fiber through the carbon fiber of precuring, the effect by the front mould spreader makes high strength glass fiber or Black Warrior fiber by certain rule, be coated on the carbon fiber core of precuring;
Step 7: solidify: the carbon fiber core that makes to be coated with the precuring of high strength glass fiber or Black Warrior fiber enters in the rear mold yarn guide to remove after glue unnecessary on high strength glass fiber or Black Warrior fiber to send in rear mold and is heating and curing, control heating-up temperature, make rear mold form three thermals treatment zone, the heating-up temperature of three thermals treatment zone is followed successively by 95 ℃-110 ℃, 165 ℃-175 ℃ and 155 ℃-175 ℃, interval 20-40cm between three thermals treatment zone, obtain the semi-solid preparation composite core, the depanning hardness of controlling the semi-solid preparation composite core by the temperature of adjusting three thermals treatment zone is not less than 85% of design hardness,
Step 8: rear solidifying: the composite core of above-mentioned semi-solid preparation is sent into to rear curing heater and be cured processing, after controlling, curing temperature is not less than 180 ℃, and rear curing time is not less than 3 minutes;
Step 9: cooling: will be cooling from the composite core pulled out rear curing heater, the composite core tensile strength obtained is greater than 2500MPa, and shear strength is greater than 70Mpa, and the minimum bend diameter is less than 55 times of core bar diameter, and elongation at break is greater than 1.2%.
Preferably, in above-mentioned electric power line carbon fiber compound core manufacture method, in described step 3, fiber moisture is less than 2%.
Preferably, in above-mentioned electric power line carbon fiber compound core manufacture method, in described step 4, the translational speed that infiltrates gluing is controlled to be 500mm/min.
Preferably, in above-mentioned electric power line carbon fiber compound core manufacture method, in described step 5, be 40 ℃ near the heating-up temperature of a section of front mould yarn guide, the heating-up temperature of another section is 80 ℃, the interval that keeps 30cm between two bringing-up sections.
Preferably, in above-mentioned electric power line carbon fiber compound core manufacture method, in described step 7, the heating-up temperature of three thermals treatment zone is distributed as 100 ℃, and 170 ℃ and 165 ℃, between three thermals treatment zone, interval is respectively 30cm.
Preferably, in above-mentioned electric power line carbon fiber compound core manufacture method, in described step 8, rear curing temperature is 190 ℃, and rear curing time is 5 minutes.
Beneficial effect of the present invention:
The present invention is through experiment repeatedly, compound characteristics in conjunction with carbon fiber and high-strength glass fibre (or Black Warrior fiber) on the basis of conventional composite materials manufacture method are passed through the appropriate design process route, especially adopt respectively, after infiltration, carbon fiber is carried out to pultrusion preforming semi-cured state, by controlling its heating-up temperature section, obtain the carbon fiber core of function admirable, especially in the process that final coating is shaped, go out to divide three sections by a large amount of experimental summaries and be heating and curing, both guaranteed the hardness of final products, the smoothness of production and the raising of production efficiency have been met again, method has originality, filled up domestic blank, for the renewal of outlet line provides cheap and good-quality core.The present invention simultaneously reasonably configures by the equipment to commonly used in existing composite material production according to the characteristics of carbon fiber complex core, and the carbon fiber complex core that combinations produce goes out can meet the needs that electric power is carried fully.The existing wire of the same type of compound wire strength ratio that utilizes carbon fiber complex core that method and apparatus of the present invention is produced to produce is high 2 times, conductance is higher and without magnetic loss and heat waste, can be energy-conservation more than 6%, simultaneously due to the weight saving that makes wire 10~20%, so sag is lower, can reduce sag more than 2 times, composite core of the present invention also has corrosion-resistant, the advantage of long service life, and its life-span is 2 times of conventional wires, can also save aluminium more than 50%, but reduce cost is over half.
The equipment configuration that the present invention uses is reasonable, control system is advanced, simple in structure, manufacture installation, debugging, easy to maintenance.Especially wherein solidify the mode of heating that heating has been found out to adopt respectively two-part heating and Three-section type heating through repetition test twice, given full play to the important function of heating in composite material is manufactured, to guaranteeing that product quality is most important.
The accompanying drawing explanation
Fig. 1 has been that the equipment of embodiment of the present invention technological process forms structural representation;
Fig. 2 is embodiment of the present invention process chart.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The equipment that completes the electric power line carbon fiber compound core manufacturing process that the embodiment of the present invention provides forms structure as shown in Figure 1.Wherein, described equipment is mainly by creel 1, collection yarn device 2, moisture separator 3, carbon fiber, high-strength glass fibre infuser 4, 4 ', front mould yarn guide 5, front mould 6, front mould heater 7, spreader 8, yarn guide 9, heater 10, rear mold 11, the rear heater 12 that solidifies, air cooling device 13, diameter detector 14, hauling machine 15 and double plate take-up 16 form, collection yarn device 2 is arranged on the yarn discharging end of creel 1, moisture separator 3 is arranged on collection yarn device 2 and carbon fiber, high-strength glass fibre infuser 4, between 4 ', front mould yarn guide 5, front mould 6 is arranged between impregnated carbon fiber device 4 and rear mold spreader 8 successively, front mould heater 7 is sleeved on front mould 6, infuser 4 ' is arranged between spreader 8 and moisture separator 3, yarn guide 9 is connected with spreader 8, the rear mold 11 of heater 10 is arranged on yarn outlet one side of yarn guide 9, the exit of rear mold 11 is equipped with the port of export of rear curing heater 12, 15 of hauling machines are arranged between double plate take-up 16 and air cooling device 13.Diameter detector 1(model can be CFBLS Shanghai Yi Chuan instrucment and meter plant) between hauling machine 15 and air cooling device 13, and be connected with alarm 19, and in Fig. 1,20 is the control system of whole production line, it can adopt prior art to be realized.
During concrete enforcement, creel 1 can adopt belt tension to show creel (model can be: CFBLS, Shanghai Yi Chuan instrucment and meter plant), and collection yarn device 2 can adopt the collection yarn device (model is thirsted for: SV, Yixing municipal one-tenth Pure Water Equipment Co., Ltd) of band broken end controller.In order to guarantee solidification effect, while specifically implementing, front mould heater 7 can form by two sections, and between two sections, spacing distance is 20~40 centimetres, and the heating-up temperature of two sections is respectively 35 ℃~45 ℃ and 70 ℃~90 ℃.Similarly heater 10 can form by three sections, spacing distance between section and section is 20~40 centimetres, wherein the heating-up temperature of a section near yarn guide 9 is 95 ℃~110 ℃, and the heating-up temperature of interlude is 165 ℃~175 ℃, and the heating-up temperature of the 3rd section is 155 ℃~165 ℃.Should be first before start by manually carbon fiber 17 and high-strength glass fibre (or Black Warrior fiber) being pulled out and are passed each corresponding device and be placed on after hauling machine 15 is fixed and could start shooting from creel.The following course of work is the process after the whole production line of supposition enters running status.
Be arranged on the exit of carbon fiber 17 on creel 1 and high-strength glass fibre (also can adopt Black Warrior fiber) 18 at first through collection yarn device 2 boundlings, then enter in moisture separator 3 dry rear enter respectively for infuser 4, impregnation in 4 ', carbon fiber 17 after impregnation enters extrusion modling in front mould 6 after entering the unnecessary glue of removal in front mould yarn guide 5, and the while forms the semi-solid preparation heart yearn at the heater wire of front mould heater 7, then with together with the high-strength glass fibre (or Black Warrior fiber) 18 of impregnation enter in spreader 8, under the effect of spreader 8, make high-strength glass fibre (or Black Warrior fiber) 18 be coated on the heart yearn surface of semi-solid preparation, then both enter in the rear mold 11 that three heaters 10 are housed the typing that is heating and curing after entering together the unnecessary glue of removal in yarn guide 9, obtaining inner core is carbon fiber 17, surface coverage has high-strength glass fibre (Black Warrior fiber) 18, curing degree is the heart yearn more than 85%, heart yearn enters follow-up rear curing heater 12 180-190 ℃ of further solidifying and setting, then entering air cooling device 13 carries out after cooling entering diameter detector its diameter is detected, if diameter is excessive or too small, should adjust infuser 4 by control system, glue amount in 4 ' or by adjusting the method for shrinking agent amount, the composite core of curing molding finally enters 16 take-ups of double plate take-up and forms the plate-like core coil of being convenient to transport under the traction of hauling machine 15.
The preferred embodiments of the present invention will describe in detail below:
Embodiment mono-
A kind of electric power line carbon fiber compound core manufacture method, comprise the steps:
Step 1: a kind of manufacturing equipment of carbon fiber complex core for transmission line is provided, and this equipment comprises: creel, collection yarn device, moisture separator, impregnated carbon fiber device, high-strength glass fibre infuser, the front mould yarn guide, front mould, front mould heater, the front mould spreader, the rear mold yarn guide, heater, rear mold, rear heater, the air cooling device of solidifying;
Step 2: preliminary treatment: adjust tension force and the linearity of carbon fiber and high strength glass fiber or Black Warrior fiber, the tension force that makes carbon fiber and high strength glass fiber or Black Warrior fiber is consistent and meet technological requirement, the linearity had respectively;
Step 3: dry: from the uniform velocity involving on creel, make it enter in moisture separator and remove moisture through collection yarn device carbon fiber and high strength glass fiber or Black Warrior fiber, and control fiber moisture and be less than 2%, improve the goods mechanical strength;
Step 4: infiltrate gluing: the carbon fiber after drying is sent in the impregnated carbon fiber device and is infiltrated gluing with straight-line, and the translational speed that infiltrates gluing is controlled at 500mm/min; High strength glass fiber after drying or Black Warrior fiber are twisted with the fingers to cluster type and sent in the high-strength glass fibre infuser and infiltrate gluing to increase, and the translational speed that infiltrates gluing is controlled at 500mm/min; The epoxy resin used adds for adopting the fire resistant special type pultrusion epoxy resin that the modified anhydride compound is made;
Step 5: precuring: the carbon fiber that makes to scribble glue through infiltration enters in front mould and carries out precuring after the front mould yarn guide is removed surplus glue, control the heating-up temperature of front mould, form two sections heating, wherein the heating-up temperature of a section near the front mould yarn guide is 40 ℃, the heating-up temperature of another section is 80 ℃, make simultaneously to keep between two bringing-up sections the interval of 30cm, obtain the carbon fiber core of precuring;
Step 6: dividing sinker coats: make to enter in the front mould spreader together with the high strength glass fiber that infiltrates gluing through the harmless straight line hopper of constant temperature or Black Warrior fiber through the carbon fiber of precuring, the effect by the front mould spreader makes around high strength glass fiber or the regular carbon fiber core that is coated on precuring of Black Warrior fiber;
Step 7: solidify: the carbon fiber core that makes to be coated with the precuring of high strength glass fiber (or Black Warrior fiber) enters in the rear mold yarn guide to remove after the upper unnecessary glue of high strength glass fiber (or Black Warrior fiber) to send in rear mold and is heating and curing, control heating-up temperature, make rear mold form three thermals treatment zone, the heating-up temperature of three thermals treatment zone is followed successively by 100 ℃, 170 ℃ and 165 ℃, interval 30cm between three thermals treatment zone, obtain the semi-solid preparation composite core, the depanning hardness of controlling the semi-solid preparation composite core by the temperature of adjusting three thermals treatment zone is not less than 85% of design hardness (being final finished hardness), the actual temp value of each thermal treatment zone can be determined in the debugging by limited number of time, and one measures mould hardness meets the demands and can determine, composite core diameter through semi-solid preparation is 6-10mm,
Step 8: rear solidifying: the composite core of above-mentioned semi-solid preparation is sent into to rear curing heater and be cured processing, after controlling, curing temperature is not less than 190 ℃, and rear curing time is 5 minutes; Rear curing time can be realized by length and the hauling speed of adjusting heater;
Step 9: cooling: will be cooling from the composite core pulled out rear curing heater, check can be received on the double plate take-up.
Embodiment bis-
In the present embodiment, except following process conditions, other processing steps are identical with embodiment mono-.
In step 3, fiber moisture is not more than 3%;
In step 4, the translational speed that infiltrates gluing is controlled at 400mm/min;
In step 5, be 35 ℃ near the heating-up temperature of a section of front mould yarn guide, the heating-up temperature of another section is 70 ℃, the interval that keeps 20cm between two bringing-up sections;
In step 7, the heating-up temperature of three thermals treatment zone is distributed as 95 ℃, and 165 ℃ and 155 ℃, between three thermals treatment zone, interval is respectively 20cm;
In step 8, rear curing temperature is 180 ℃, and rear curing time is 3 minutes.
Embodiment tri-
In the present embodiment, except following process conditions, other processing steps are identical with embodiment mono-.
In step 3, fiber moisture is not more than 3%;
In step 4, the translational speed that infiltrates gluing is controlled at 600mm/min;
In step 5, be 45 ℃ near the heating-up temperature of a section of front mould yarn guide, the heating-up temperature of another section is 90 ℃, the interval that keeps 40cm between two bringing-up sections;
In step 7, the heating-up temperature of three thermals treatment zone is distributed as 110 ℃, and 175 ℃ and 170 ℃, between three thermals treatment zone, interval is respectively 40cm;
In step 8, rear curing temperature is 200 ℃, and rear curing time is 8 minutes.
Part that the present invention does not relate to such as moisture separator, infuser, yarn guide, front mould, rear mold, hauling machine, double plate take-up etc. all prior art that maybe can adopt same as the prior art are realized.
Through experiment, in above preferred embodiment, resulting composite core tensile strength is greater than 2500MPa, shear strength is greater than 70Mpa, the minimum bend diameter is less than 55 times of core bar diameter, and elongation at break is greater than 1.2%, all can meet the requirement of the cable core that the current power transmission circuit uses.Wherein, the process program production process that embodiment mono-provides is more stable, and the product quality of producing is more reliable.
The above embodiment has only expressed embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.

Claims (6)

1. an electric power line carbon fiber compound core manufacture method, is characterized in that, comprises the steps:
Step 1: a kind of manufacturing equipment of carbon fiber complex core for transmission line is provided, and this equipment comprises: creel, collection yarn device, moisture separator, impregnated carbon fiber device, high-strength glass fibre infuser, the front mould yarn guide, front mould, front mould heater, the front mould spreader, the rear mold yarn guide, heater, rear mold, rear heater, the air cooling device of solidifying;
Step 2: preliminary treatment: adjust tension force and the linearity of carbon fiber and high strength glass fiber or Black Warrior fiber, the tension force that makes carbon fiber and high strength glass fiber or Black Warrior fiber is consistent and meet technological requirement, the linearity had respectively;
Step 3: dry: from the uniform velocity involving on creel, make it enter in moisture separator and remove moisture through collection yarn device carbon fiber and high strength glass fiber or Black Warrior fiber, and control fiber moisture and be not more than 3%, improve the goods mechanical strength;
Step 4: infiltrate gluing: the carbon fiber after drying is sent in the impregnated carbon fiber device and is infiltrated gluing with straight-line, and the translational speed that infiltrates gluing is controlled between 400~600mm/min; High strength glass fiber after drying or Black Warrior fiber are twisted with the fingers to cluster type and sent in the high-strength glass fibre infuser and infiltrate gluing to increase, and the translational speed that infiltrates gluing is controlled between 400~600mm/min; The epoxy resin used adds for adopting the fire resistant special type pultrusion epoxy resin that the modified anhydride compound is made;
Step 5: precuring: the carbon fiber that makes to scribble glue through infiltration enters in front mould and carries out precuring after the front mould yarn guide is removed surplus glue, control the heating-up temperature of front mould, form two sections heating, wherein the heating-up temperature of a section near the front mould yarn guide is 35 ℃-45 ℃, the heating-up temperature of another section is 70 ℃~90 ℃, make simultaneously to keep between two bringing-up sections the interval of 20-40cm, obtain the carbon fiber core of precuring;
Step 6: dividing sinker coats: make to enter in the front mould spreader together with high strength glass fiber through infiltrating gluing or Black Warrior fiber through the carbon fiber of precuring, the effect by the front mould spreader makes high strength glass fiber or Black Warrior fiber by certain rule, be coated on the carbon fiber core of precuring;
Step 7: solidify: the carbon fiber core that makes to be coated with the precuring of high strength glass fiber or Black Warrior fiber enters in the rear mold yarn guide to remove after glue unnecessary on high strength glass fiber or Black Warrior fiber to send in rear mold and is heating and curing, control heating-up temperature, make rear mold form three thermals treatment zone, the heating-up temperature of three thermals treatment zone is followed successively by 95 ℃-110 ℃, 165 ℃-175 ℃ and 155 ℃-175 ℃, interval 20-40cm between three thermals treatment zone, obtain the semi-solid preparation composite core, the depanning hardness of controlling the semi-solid preparation composite core by the temperature of adjusting three thermals treatment zone is not less than 85% of design hardness,
Step 8: rear solidifying: the composite core of above-mentioned semi-solid preparation is sent into to rear curing heater and be cured processing, after controlling, curing temperature is not less than 180 ℃, and rear curing time is not less than 3 minutes;
Step 9: cooling: will be cooling from the composite core pulled out rear curing heater, the composite core tensile strength obtained is greater than 2500MPa, and shear strength is greater than 70Mpa, and the minimum bend diameter is less than 55 times of core bar diameter, and elongation at break is greater than 1.2%.
2. electric power line carbon fiber compound core manufacture method according to claim 1, is characterized in that, in described step 3, fiber moisture is less than 2%.
3. electric power line carbon fiber compound core manufacture method according to claim 1, is characterized in that, in described step 4, the translational speed that infiltrates gluing is controlled to be 500mm/min.
4. electric power line carbon fiber compound core manufacture method according to claim 1, it is characterized in that, in described step 5, the heating-up temperature of a section of close front mould yarn guide is 40 ℃, the heating-up temperature of another section is 80 ℃, between two bringing-up sections, keeps the interval of 30cm.
5. electric power line carbon fiber compound core manufacture method according to claim 1, is characterized in that, in described step 7, the heating-up temperature of three thermals treatment zone is distributed as 100 ℃, and 170 ℃ and 165 ℃, between three thermals treatment zone, interval is respectively 30cm.
6. electric power line carbon fiber compound core manufacture method according to claim 1, is characterized in that, in described step 8, rear curing temperature is 190 ℃, and rear curing time is 5 minutes.
CN2013103729786A 2013-08-23 2013-08-23 Electric transmission line carbon fiber composite core manufacturing method Pending CN103413629A (en)

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CN103956217A (en) * 2014-04-14 2014-07-30 上海大学 Hybrid fiber compound core forming process and compound core manufacturing device
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Application publication date: 20131127