KR101386130B1 - Manufacturing method for power line of aluminium using cnt - Google Patents

Manufacturing method for power line of aluminium using cnt Download PDF

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KR101386130B1
KR101386130B1 KR1020120121648A KR20120121648A KR101386130B1 KR 101386130 B1 KR101386130 B1 KR 101386130B1 KR 1020120121648 A KR1020120121648 A KR 1020120121648A KR 20120121648 A KR20120121648 A KR 20120121648A KR 101386130 B1 KR101386130 B1 KR 101386130B1
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aluminum
coating
cnt
rod
organic solvent
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KR1020120121648A
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Korean (ko)
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김종욱
김병걸
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한국전기연구원
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0026—Apparatus for manufacturing conducting or semi-conducting layers, e.g. deposition of metal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0006—Apparatus or processes specially adapted for manufacturing conductors or cables for reducing the size of conductors or cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0033—Apparatus or processes specially adapted for manufacturing conductors or cables by electrostatic coating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Metal Rolling (AREA)

Abstract

The present invention relates to a method for manufacturing an aluminum power line. The method for manufacturing an aluminum power line includes: a first step for melting aluminum; a second step for molding the aluminum into a cast bar; a third step for molding the cast bar into a rod by rolling the cast bar to have a cross section of a predetermined size in multiple phases; and a fourth step for surrounding the rolled aluminum rod. The third step of the aluminum power line manufacturing method includes: a coating step for coating a carbon nanotube (CNT) which is dispersed in organic solvent on the outer surface of the aluminum rod which is rolled in a first roller; an organic solvent removing step for removing the organic solvent which remains on the outer surface of the aluminum rod of the coating step; and a compressing step for compressing the CNT to the aluminum rod in a second roller after the organic solvent removing step. According to the forementioned, the present invention increases conductivity and water repellency by coating a CNT on an aluminum transmission/distribution line and prevents the damage of a power line in an extreme situation including an extremely low temperature situation by increasing heat of the power line to a predetermined level by receiving infrared light from sunlight.

Description

ＣＮＴ를 이용하여 표면 개질된 알루미늄 송전선의 제조방법{manufacturing method for power line of aluminium using CNT}Manufacturing method for power line of aluminum using CNT

본 발명은 CNT를 이용하여 표면 개질된 알루미늄 송전선의 제조방법에 관한 것으로, 더욱 상세하게는, 알루미늄 송/배전선에 CNT를 코팅하여 전도율 및 발수성을 높이고, 태양광으로부터 적외선을 받아 전선의 열을 일정수준으로 높여 극저온 상황 등의 극한상항에서 전선의 폐손을 방지시킬 수 있는 알루미늄 송전선을 제공하는 CNT를 이용하여 표면 개질된 알루미늄 송전선의 제조방법에 관한 것이다. The present invention relates to a method of manufacturing a surface-modified aluminum transmission line using CNTs, and more particularly, to improve conductivity and water repellency by coating CNTs on aluminum transmission / distribution lines, and to receive heat from the sunlight to heat the wires. The present invention relates to a method for manufacturing a surface-modified aluminum transmission line using a CNT providing an aluminum transmission line that can be raised to a level and prevents wire breakage in extreme conditions such as cryogenic conditions.

일반적으로, 발전소와 변전소 또는 변전소와 변전소 등을 연결하여 일반 가정이나 수용가에 전력을 수송하는 송전선은 가공송전선과 지중 송전선으로 크게 구분된다. 그 중 가공송전선은 외부 환경에 상대적으로 많이 노출되어 외부 환경에 의한 영향을 많이 받게 된다. In general, a transmission line connecting electric power plants and substations or substations and substations to transfer electric power to general homes or consumers is divided into overhead transmission lines and underground transmission lines. Among them, overhead transmission lines are relatively exposed to the external environment, and thus are affected by the external environment.

가공송전선이란 지상으로부터 공중으로 이격되어 전력을 전송하는 것으로 일반적으로 발전소에서 발생된 전력을 변전소 등에 보내기 위해 사용되고 있다. Overhead transmission lines transmit electric power spaced from the ground to the air and are generally used to transmit power generated from power plants to substations.

도 1은 일반적인 가공송전선의 사시도이다. 통상적인 가공송전선은 도 1에 도시된 바와 같이 중심 인장선(1)과 이를 둘러싸고 있는 도선(2)으로 이루어진다. 이러한 중심 인장선(1)은 가공송전선의 장력을 부담하여 가공송전선을 지지하면서 전선의 강도를 유지시켜주는 역할을 하며, 종래에는 일반적으로 중심 인장선에 강선이나 탄소강으로 이루어진 케이블을 사용하였다. 그리고 이를 둘러싼 도선(2)은 알루미늄으로 이루어지며 전류수송을 담당한다. 1 is a perspective view of a general overhead transmission line. A typical overhead transmission line consists of a central tension line 1 and a conductive line 2 surrounding it, as shown in FIG. The center tension line (1) serves to maintain the strength of the wire while supporting the overhead transmission line to bear the tension of the overhead transmission line, conventionally used a cable made of steel wire or carbon steel in the center tension line. And the wire (2) surrounding it is made of aluminum and is responsible for the current transport.

그리고 철탑에 설치되어 있는 가공송전선인 경우 외부 환경에 상대적으로 많이 노출되어 있는 실정이다. In the case of overhead transmission lines installed in the steel tower, the situation is relatively exposed to the external environment.

따라서 상기 종래기술에 따른 송전선인 경우 상기 알루미늄 자체의 전기전도도에 의해 전류 수송이 양호하지 못하다는 문제점이 존재할 뿐만 아니라, 극저온 상황 등의 극한상항에서 송전선이 폐손되는 등의 문제점이 발생한다.Therefore, in the case of the transmission line according to the prior art, not only there is a problem that the current transport is not good due to the electrical conductivity of the aluminum itself, there is a problem such that the transmission line is damaged in extreme conditions such as cryogenic conditions.

따라서, 본 발명은 상기한 종래기술의 문제점을 해결하기 위해 안출된 것으로, 알루미늄 송/배전선에 CNT를 코팅하여 전도율 및 발수성을 높이고, 태양광으로부터 적외선을 받아 전선의 열을 일정수준으로 높여 극저온 상황 등의 극한상항에서 전선의 폐손을 방지시킬 수 있는 알루미늄 송전선의 제조방법을 제공하는 것을 목적으로 한다. Therefore, the present invention has been made to solve the above problems of the prior art, by coating the CNT on the aluminum transmission / distribution line to increase the conductivity and water repellency, by receiving infrared rays from the sunlight to increase the heat of the wire to a certain level cryogenic situation It is an object of the present invention to provide a method for manufacturing an aluminum transmission line that can prevent wire damage in extreme conditions.

상기한 목적을 달성하기 위한 본 발명은, 알루미늄을 용해하는 제1단계와, 상기 알루미늄을 주조바로 성형하는 제2단계와, 상기 주조바를 일정한 크기의 단면으로 다단압연하여 라드로 성형하는 제3단계와, 상기 압연된 알루미늄 라드를 감는 제4단계;를 포함하여 이루어지는 알루미늄 송전선의 제조방법에 있어서, 상기 제3단계는, 1차 압연기에서 압연된 알루미늄 라드의 외표면에 유기용매에 분산된 CNT(carbon nano tube)를 코팅시키는 코팅단계와; 상기 코팅단계의 알루미늄 라드의 외표면에 잔류된 유기용매를 제거시키는 유기용매 제거단계와; 상기 유기용매 제거단계 후, 2차 압연기에서 상기 CNT가 상기 알루미늄 라드에 압착되도록 하는 압착단계;를 포함하여 구성되는 알루미늄 송전선의 제조방법을 기술적 요지로 한다.The present invention for achieving the above object, the first step of dissolving aluminum, the second step of molding the aluminum into a casting bar, and the third step of forming the rod by multi-stage rolling the casting bar into a cross section of a predetermined size And a fourth step of winding the rolled aluminum rod, wherein the third step comprises: CNT dispersed in an organic solvent on an outer surface of the aluminum rod rolled in a primary rolling mill; coating a carbon nanotube); An organic solvent removing step of removing the organic solvent remaining on the outer surface of the aluminum rod of the coating step; After the organic solvent removal step, the pressing step for the CNT is pressed to the aluminum rod in the secondary rolling mill; the manufacturing method of the aluminum transmission line comprising a technical gist.

상기 알루미늄은 알루미늄 합금을 포함하는 것이 바람직하다. It is preferable that the said aluminum contains an aluminum alloy.

상기 코팅단계의 코팅은 스프레이 코팅인 것이 바람직하다.The coating of the coating step is preferably a spray coating.

상기 코팅단계의 코팅은 함침에 의해 이루어지는 것이 바람직하다.Coating of the coating step is preferably made by impregnation.

상기 스프레이 코팅은 알루미늄 라드가 하우징을 통과하면서 노즐을 통해 분사된 CNT 코팅액에 의해 이루어지는 것이 바람직하다.The spray coating is preferably made by CNT coating liquid sprayed through the nozzle while the aluminum rod passes through the housing.

상기 함침에 의한 코팅은 알루미늄 라드가 CNT 탱크를 통과함에 의해 CNT 코팅액에 의해 이루어지는 것이 바람직하다.Coating by the impregnation is preferably made by the CNT coating liquid by passing the aluminum rod through the CNT tank.

상기 유기용매 제거단계는 코팅단계를 거친 알루미늄 라드가 원통형 고온로를 통과함에 의해 진행되는 것이 바람직하다.The organic solvent removing step is preferably carried out by passing the aluminum rod passed through the cylindrical high temperature furnace after the coating step.

상기 원통형 고온로의 온도는 150℃ 내지 500℃가 되는 것이 바람직하다.It is preferable that the temperature of the said cylindrical high temperature furnace becomes 150 degreeC-500 degreeC.

이에 따라, 알루미늄 송/배전선에 CNT를 코팅하여 전도율 및 발수성을 높이고, 태양광으로부터 적외선을 받아 전선의 열을 일정수준으로 높여 극저온 상황 등의 극한상항에서 전선의 폐손을 방지시킬 수 있는 이점이 있다. Accordingly, the CNT is coated on the aluminum transmission / distribution line to improve conductivity and water repellency, and to receive infrared rays from the sun to increase the heat of the wire to a certain level, thereby preventing damage to the wire in extreme conditions such as cryogenic conditions. .

상기의 구성에 의한 본 발명은, 알루미늄 송/배전선에 CNT를 코팅하여 전도율을 높아지고, CNT의 발수성에 의해 눈 등의 이물질이 송전선에 잘 달라붙지 않는 효과가 있으며, 태양광으로부터 적외선을 받아 전선의 열을 일정수준으로 높여 극저온 상황 등의 극한상항에서 전선의 폐손을 방지시킬 수 있는 효과가 있다. According to the present invention, the CNT is coated on the aluminum transmission / distribution line to increase conductivity, and the water repellency of the CNT prevents foreign substances such as snow from sticking to the transmission line. By increasing the heat to a certain level, there is an effect that can prevent the wire damage in extreme conditions such as cryogenic conditions.

도 1은 종래기술에 따른 알루미늄 송전선의 사시도이고,
도 2은 본 발명의 실시예에 따른 알루미늄 송전선 제조장치에 대한 모식도이고,
도 3은 본 발명의 실시예에 따른 스프레이 코팅을 나타낸 모식도이고,
도 4는 본 발명의 실시예에 따른 함침에 의한 코팅을 나타낸 모식도이다. 1 is a perspective view of an aluminum transmission line according to the prior art,
Figure 2 is a schematic diagram of the aluminum transmission line manufacturing apparatus according to an embodiment of the present invention,
3 is a schematic view showing a spray coating according to an embodiment of the present invention,
Figure 4 is a schematic diagram showing a coating by impregnation according to an embodiment of the present invention.

이하 첨부된 도면을 참조로 본 발명의 바람직한 실시예를 설명한다.DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

도 2는 본 발명의 실시예에 따른 알루미늄 송전선 제조장치에 대한 모식도이고, 도 3은 본 발명의 실시예에 따른 스프레이 코팅을 나타낸 모식도이고, 도 4는 본 발명의 실시예에 따른 함침에 의한 코팅을 나타낸 모식도이다.Figure 2 is a schematic diagram of the aluminum transmission line manufacturing apparatus according to an embodiment of the present invention, Figure 3 is a schematic diagram showing a spray coating according to an embodiment of the present invention, Figure 4 is a coating by impregnation according to an embodiment of the present invention It is a schematic diagram showing.

도시된 바와 같이, 본 발명에 따른 알루미늄 송전선의 제조방법은 배치타입(Batch type), 연속주조법(Properzi법) 등에 의해 제조될 수 있으나, 공정이 간단하여 제품의 균질성을 얻을 수 있는 연속주조법에 의해 제조된다.As shown, the manufacturing method of the aluminum transmission line according to the present invention can be manufactured by a batch type (Batch type), continuous casting method (Properzi method), etc., but by the continuous casting method to obtain a homogeneity of the product is simple process Are manufactured.

도 2은 본 발명의 실시예에 따른 알루미늄 송전선 제조장치에 대한 모식도를 나타낸 것으로, 용해로(100)를 통해 알루미늄을 용해하는 제1단계가 진행되는바, 필요 시 알루미늄에 다른 원소를 첨가하여 알루미늄 합금으로 형성하여도 무방하며, 송전선용 알루미늄 합금인 경우 공지의 것이므로 성분 등에 대한 설명은 생략하기로 한다. Figure 2 shows a schematic diagram of the aluminum transmission line manufacturing apparatus according to an embodiment of the present invention, the first step of dissolving aluminum through the melting furnace 100 is progressed, if necessary, by adding other elements to the aluminum alloy In the case of the aluminum alloy for power transmission lines, since it is a well-known thing, description about components etc. is abbreviate | omitted.

그런 다음, 주조기(200)를 통해 상기 알루미늄을 주조바로 성형하는 제2단계가 진행된 후, 다단압연기(300)를 통해 상기 주조바를 일정한 크기의 단면으로 압연하고, 외표면에 CNT를 코팅시키는 제3단계가 진행되고, 코일기(400)를 통해 상기 압연된 알루미늄 라드를 감는 제4단계가 진행되는 과정으로 크게 이루어진다. Then, after the second step of forming the aluminum into a casting bar through the casting machine 200 is carried out, the third step of rolling the casting bar into a cross section of a predetermined size through a multi-stage rolling mill 300, and coating a CNT on the outer surface The step proceeds, and the fourth step of winding the rolled aluminum rod through the coil machine 400 is largely made.

상기에서와 같이 연속주조에 의한 공정은 알루미늄을 용해로(100)에 투입하여 850℃에서 용해시킨다. In the continuous casting process as described above, aluminum is added to the melting furnace 100 to be dissolved at 850 ° C.

그런 다음, 용해로(100)에서 출탕된 용탕은 탕도를 따라 이동후 주조기(200)에 유입되고 주조기(200)는 내외부에서 냉각수가 분사되어 사각형태의 주조바로 응고시킨다. Then, the molten metal from the melting furnace 100 is moved along the water flow and then flows into the casting machine 200, and the casting machine 200 is sprayed with cooling water from the inside and outside to solidify the square casting bar.

주조바(200)는 약 850℃ 정도에서 형성되며, 약 490℃의 고온으로 유지된 상태로 다단압연기(300)로 공급된다. 여기에서 주조바의 온도가 너무 낮을 때에는 다음 과정인 다단압연에서 압착불량에 의한 균열의 위험성이 높아지고, 주조바의 온도가 너무 높을 때에는 압연은 용이하나 주조바의 중앙부에 미세수축공의 발생의 위험이 높아지게 되어 압연과정에서 압착되지 못하면 차후 공정에서 중앙부의 단선의 원인이 된다.The casting bar 200 is formed at about 850 ° C. and is supplied to the multi-stage rolling machine 300 while being maintained at a high temperature of about 490 ° C. In this case, when the casting bar temperature is too low, the risk of cracking due to poor crimping in the multi-stage rolling is increased. When the casting bar temperature is too high, rolling is easy, but there is a risk of micro shrinkage in the center of the casting bar. This becomes high and if the crimp in the rolling process is the cause of the disconnection of the central portion in the subsequent process.

그리고, 상기 주조바는 약 490℃의 고온으로 유지된 상태에서 3방향롤에 의한 연속 다단압연기(300)로 공급되며, 압연 시작은 약 490℃, 압연 종료는 150℃~250℃에서 이루어져, 직경 3.0mm~9.7mm 정도의 라드(rod)로 압연된다. And, the casting bar is supplied to the continuous multi-stage rolling mill 300 by a three-way roll in a state maintained at a high temperature of about 490 ℃, the rolling start is about 490 ℃, the rolling end is made at 150 ℃ ~ 250 ℃, diameter Rolled to a rod of 3.0mm ~ 9.7mm.

한편, 제조 공정에서 균열을 방지하기 위해 압연온도를 조절할 수 있으며, 편석층을 절삭하기 위해 열간 면삭기를 사용할 수도 있다.Meanwhile, the rolling temperature may be adjusted to prevent cracking in the manufacturing process, and a hot face grinder may be used to cut the segregation layer.

연속해서 압연된 라드는 통상 2~4톤 정도의 일정한 중량으로 감아 코일기를 통해 코일링(coiling)되며, 코일링시 압연공정을 정지하지 않기 위해 복수코일장치를 설치해 일정 중량으로 감아 완성한다.The continuously rolled rod is coiled through a coiling machine, usually wound at a constant weight of about 2 to 4 tons, and is wound up to a constant weight by installing a plurality of coil devices so as not to stop the rolling process during coiling.

그런데 상기 알루미늄 송전선을 제조하는 공정 중 제1단계, 제2단계 및 제4단계는 통상적인 절차에 따라 진행되는 기술이므로 더 이상의 설명은 생략하고 본 발명의 핵심 기술인 상기 제3단계에 대해 상세히 설명하기로 한다.However, the first step, the second step and the fourth step of the process of manufacturing the aluminum transmission line is a technology that proceeds according to a conventional procedure, so further description will be omitted and the third step, which is the core technology of the present invention, will be described in detail. Shall be.

상기 제3단계는 코팅단계와, 유기용매 제거단계와, 압착단계를 포함하여 구성되고, 상기 코팅단계와 유기용매 제거단계는 상기 다단 압연기(300)의 1차 압연기(310)와 2차 압연기(350) 사이에서 이루어진다.The third step includes a coating step, an organic solvent removing step, and a pressing step, wherein the coating step and the organic solvent removing step include the primary rolling mill 310 and the secondary rolling mill (of the multi-stage rolling mill 300). 350).

상기 코팅단계는 상기 1차 압연기(310)에서 1차로 압연된 선재인 알루미늄 라드(500)의 외표면에 CNT를 코팅하는 단계로, 도 3에 도시된 바와 같이, 유기용매에 분산되어 있는 CNT 코팅액이 CNT 탱크(320)에 수용되어 있다가 하우징(330)을 통과하는 압연된 알루미늄 라드(500)인 선재의 외표면에 분사되는바, 분사압력 조절기(321)를 통하고 노즐(331)을 통하여 CNT 코팅액이 분사되는 방법인 스프레이 방식으로 상기 선재의 외표면에 코팅된다. The coating step is a step of coating the CNT on the outer surface of the aluminum rod 500, the wire rod first rolled in the primary rolling mill 310, as shown in Figure 3, CNT coating liquid dispersed in an organic solvent The CNT tank 320 is injected into the outer surface of the wire rod, which is a rolled aluminum rod 500 passing through the housing 330, through the injection pressure regulator 321 and through the nozzle 331. The CNT coating liquid is coated on the outer surface of the wire by a spray method.

그런 다음, 상기 선재는 유기용매 제거단계를 거치는바, 코팅단계를 거친 선재는 하우징에 인접한 150℃ 내지 500℃의 온도를 유지하는 원통형 고온로(340)로 이동되며, 상기 원통형 고온로(340)에서 열에 의해 상기 CNT가 코팅된 선재인 알루미늄 라드(500)에 잔류된 유기용매가 제거된다. 이때, 하우징(330)은 상기에서 설명한 바와 같이, 150℃ 내지 500℃를 유지하는바, 이는 유기용매를 효율적으로 제거할 뿐만 아니라 CNT가 선재에 잘 코팅되도록 하는 것이다. Then, the wire rod is subjected to the organic solvent removal step, the wire rod after the coating step is moved to a cylindrical high temperature furnace 340 maintaining a temperature of 150 ℃ to 500 ℃ adjacent to the housing, the cylindrical high temperature furnace 340 The organic solvent remaining in the aluminum rod 500, which is the wire coated with CNTs, is removed by heat. In this case, as described above, the housing 330 maintains 150 ° C. to 500 ° C., which not only efficiently removes the organic solvent but also allows the CNT to be coated on the wire.

상기 유기용매 제거단계를 거친 선재는 2차 압연기(350)로 이동되어 재차 압연 되는바, 이는 CNT가 상기 알루미늄 라드(500)에 더욱더 압착되도록 하는 과정이다. After passing through the organic solvent removing step, the wire is moved to the secondary rolling mill 350 and rolled again, which is a process of allowing the CNT to be further compressed onto the aluminum rod 500.

상기의 다단 압연과정을 거친 선재는 상기에서 설명한 바와 같이, 코일기(400)에 감기게 된다. As described above, the wire rod subjected to the multi-stage rolling process is wound on the coil machine 400.

상기에서는 제3단계 중 코팅단계를 스프레이 코팅을 이용하여 구성하는 형태로 설명하였으나, 도4와 같이 함침을 이용하여 CNT 코팅액을 선재에 코팅하여도 무방하다. In the above description, the coating step of the third step is described as a configuration using spray coating, but it may be possible to coat the CNT coating liquid on the wire using impregnation as shown in FIG.

즉, 도4에서와 같이, 유기용매에 분산되어 있는 CNT 코팅액이 수용된 CNT 탱크(360)를 하우징(330)과 1차 압연기(310) 사이에 설치하고, 1차 압연기(310)에서 이동된 알루미늄 라드(500)인 선재를 상기 CNT 탱크(360)를 지나도록 하여 함침 방법으로 선재의 외표면에 CNT 코팅액이 코팅되도록 하는 방법이다. That is, as shown in FIG. 4, the CNT tank 360 containing the CNT coating liquid dispersed in the organic solvent is installed between the housing 330 and the primary rolling mill 310 and moved from the primary rolling mill 310. The rod of the rod 500 passes the CNT tank 360 to impregnate the CNT coating liquid on the outer surface of the wire by the impregnation method.

그리고 나머지 유기용매 제거단계 및 압착단계는 상기 도3에서 설명한 것과 동일한 과정을 거쳐 진행된다. The remaining organic solvent removing step and the pressing step are performed through the same process as described in FIG.

100 : 용해로 200 : 주조기
300 : 다단 압연기 310 : 1차 압연기
320 : CNT 탱크 321 : 분사 압력 조절기
330 : 하우징 331 : 노즐
340 : 원통형 고온로 350 : 2차 압연기
360 : CNT 탱크 400 : 코일기
500 : 알루미늄 라드100: melting furnace 200: casting machine
300: multi-stage rolling mill 310: primary rolling mill
320: CNT tank 321: injection pressure regulator
330 housing 331 nozzle
340: cylindrical high temperature furnace 350: secondary rolling mill
360: CNT tank 400: coil machine
500: aluminum rod

Claims (8)

알루미늄을 용해하는 제1단계와, 상기 알루미늄을 주조바로 성형하는 제2단계와, 상기 주조바를 일정한 크기의 단면으로 다단압연하여 라드로 성형하는 제3단계와, 상기 압연된 알루미늄 라드를 감는 제4단계;를 포함하여 이루어지는 알루미늄 송전선의 제조방법에 있어서,
상기 제3단계는, 1차 압연기에서 압연된 알루미늄 라드의 외표면에 유기용매에 분산된 CNT(carbon nano tube)를 코팅시키는 코팅단계와; 상기 코팅단계의 알루미늄 라드의 외표면에 잔류된 유기용매를 제거시키는 유기용매 제거단계와; 상기 유기용매 제거단계 후, 2차 압연기에서 상기 CNT가 상기 알루미늄 라드에 압착되도록 하는 압착단계;를 포함하여 구성되되,
상기 유기용매 제거단계는 코팅단계를 거친 알루미늄 라드가 원통형 고온로를 통과함에 의해 진행됨을 특징으로 하는 알루미늄 송전선의 제조방법.A first step of melting aluminum, a second step of molding the aluminum into a casting bar, a third step of rolling the casting bar into a cross section of a predetermined size into a rod, and a fourth step of winding the rolled aluminum rod. In the method of manufacturing an aluminum power transmission line comprising a;
The third step includes a coating step of coating a carbon nanotube (CNT) dispersed in an organic solvent on the outer surface of the aluminum rod rolled in the primary rolling mill; An organic solvent removing step of removing the organic solvent remaining on the outer surface of the aluminum rod of the coating step; After the organic solvent removing step, the second step in the rolling mill to press the CNT to the aluminum rod; comprising a,
The organic solvent removal step is a method of manufacturing an aluminum transmission line, characterized in that the aluminum rod undergoes a coating step passes through a cylindrical high temperature furnace. 제1항에 있어서, 상기 알루미늄은 알루미늄 합금을 포함함을 특징으로 하는 알루미늄 송전선의 제조방법.The method of claim 1, wherein the aluminum comprises an aluminum alloy. 제1항에 있어서, 상기 코팅단계의 코팅은 스프레이 코팅임을 특징으로 하는 알루미늄 송전선의 제조방법.The method of claim 1, wherein the coating of the coating step is a spray coating. 제1항에 있어서, 상기 코팅단계의 코팅은 함침에 의해 이루어짐을 특징으로 하는 알루미늄 송전선의 제조방법.The method of claim 1, wherein the coating of the coating step is performed by impregnation. 제3항에 있어서, 상기 스프레이 코팅은 알루미늄 라드가 하우징을 통과하면서 노즐을 통해 분사된 CNT 코팅액에 의해 이루어짐을 특징으로 하는 알루미늄 송전선의 제조방법.4. The method of claim 3, wherein the spray coating is made by CNT coating liquid sprayed through a nozzle while aluminum rod passes through the housing. 제4항에 있어서, 상기 함침에 의한 코팅은 알루미늄 라드가 CNT 탱크를 통과함에 의해 CNT 코팅액에 의해 이루어짐을 특징으로 하는 알루미늄 송전선의 제조방법.5. The method of claim 4, wherein the coating by impregnation is made by CNT coating liquid by aluminum rod passing through the CNT tank. 삭제delete 제1항에 있어서, 상기 원통형 고온로의 온도는 150℃ 내지 500℃가 됨을 특징으로 하는 알루미늄 송전선의 제조방법.The method of claim 1, wherein the temperature of the cylindrical high-temperature furnace is 150 ℃ to 500 ℃.
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