JP2010153376A - Method and device for manufacturing resin covered cable, and resin covered cable - Google Patents

Method and device for manufacturing resin covered cable, and resin covered cable Download PDF

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JP2010153376A
JP2010153376A JP2009269044A JP2009269044A JP2010153376A JP 2010153376 A JP2010153376 A JP 2010153376A JP 2009269044 A JP2009269044 A JP 2009269044A JP 2009269044 A JP2009269044 A JP 2009269044A JP 2010153376 A JP2010153376 A JP 2010153376A
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resin
vacuum
region
electric wire
core wire
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Tsuneo Mamada
常夫 儘田
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MAMADA SANGYO KK
Mamada Sangyo KK
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MAMADA SANGYO KK
Mamada Sangyo KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing device for preventing air (bubbles) from entering into a resin covered cable, eliminating the need for inspection after manufacture because of constant quality in highly attaching a resin to the cable, achieving high current carrying performance and a lighter weight even when reducing the amount of the cable and its cover, and actualizing no inspection, lower cost, and higher and more efficient workability and productivity. <P>SOLUTION: The device S for manufacturing the resin covered cable includes a vacuum container 10 in which a core wire 110 is arranged, a vacuum cleaning device 21 connected to the vacuum container 10, a vacuum extrusion molding device 30 as a resin covering region connected to the cleaning device 21 for covering the core wire 110 with the resin, and a cooling device 40 arranged in a post-process for the resin covering region. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、樹脂被覆電線の製造方法及び樹脂被覆電線の製造装置並びに樹脂被覆電線に係り、特に、品質にバラツキがなく、導電率が良好で、耐久性に優れた樹脂被覆した樹脂被覆電線の製造方法及び樹脂被覆電線の製造装置並びに樹脂被覆電線に関する。 The present invention relates to a method for producing a resin-coated electric wire, an apparatus for producing a resin-coated electric wire, and a resin-coated electric wire, and in particular, a resin-coated resin-coated electric wire having no variation in quality, good conductivity, and excellent durability. The present invention relates to a manufacturing method, a resin-coated electric wire manufacturing apparatus, and a resin-coated electric wire.

従来から、電線(ケーブル)に樹脂を被覆するための技術が種々提案されている。例えば、フッ素樹脂の膜厚が大きくても、活性剤をほぼ揮散させて電気特性を従来よりも向上せしめるようにしたフッ素樹脂被覆電線の製造方法が提案されている(特許文献1)。   Conventionally, various techniques for coating an electric wire (cable) with a resin have been proposed. For example, even when the film thickness of the fluororesin is large, a method for producing a fluororesin-coated electric wire has been proposed in which the activator is substantially volatilized to improve the electrical characteristics as compared with the conventional one (Patent Document 1).

特許文献1によれば、導体を走行させた状態でフッ素樹脂の微分末を液体に分散させたフッ素樹脂ディスパージョンを塗布し、さらに、10-1
Torr以下の減圧下で150〜250℃の加熱処理を施す。次いで焼成することにより、従来よりも電気特性が向上したフッ素樹脂被覆電線が得られる技術が開示されている。
According to Patent Document 1, a fluororesin dispersion in which a derivative of a fluororesin is dispersed in a liquid while the conductor is running is applied, and further, 10 −1.
A heat treatment at 150 to 250 ° C. is performed under a reduced pressure of Torr or less. Next, a technique is disclosed in which a fluororesin-coated electric wire with improved electrical characteristics than before is obtained by firing.

また、特許文献2によれば、ポリアミド樹脂組成物により被覆された樹脂被覆電線が提案されている。このように、樹脂被覆電線には、被覆する樹脂の種類を含めて多くの提案技術が存在する。
特開平6−309972号公報(特許請求の範囲、図1) 特開2006−152039号公報
According to Patent Document 2, a resin-coated electric wire coated with a polyamide resin composition is proposed. As described above, there are many proposed technologies for resin-coated wires including the type of resin to be coated.
JP-A-6-309972 (Claims, FIG. 1) JP 2006-152039 A

従来の樹脂被覆電線は、電線のヨリコミ工程で空気や油を全て除去することなく製造されているため、空気や油が被覆膜中に含まれており、品質にムラがあり、ムラがトラブルの原因になっている。例えば、従来の樹脂被覆電線は、気温・気圧の変化(高温と低温の繰り返し等)で被覆内の空気が膨張・収縮しているため、膨張収縮疲労に加え、錆の発生原因となり、劣化が早いという不都合がある。   Conventional resin-coated electric wires are manufactured without removing all air and oil in the wire weaving process, so air and oil are contained in the coating film, and the quality is uneven and unevenness is a problem. It is the cause. For example, in conventional resin-coated wires, the air in the coating expands and contracts due to changes in temperature and atmospheric pressure (such as repeated high and low temperatures). There is inconvenience that it is early.

図10及び図11は従来の樹脂被覆電線を示すものであり、図10は縦断面の説明図、図11は図10のB−B線断面図である。
この図で示すように、従来の樹脂被覆電線Dは、被覆している樹脂層100に空気(気泡)120が混じっており、また電線110と樹脂層100との密着性に問題があった。さらに電線110の間にも空気(気泡)120が混じって、電線110どうしの密着度が低くなっている。
10 and 11 show a conventional resin-coated electric wire. FIG. 10 is an explanatory view of a longitudinal section, and FIG. 11 is a sectional view taken along line BB of FIG.
As shown in this figure, in the conventional resin-coated electric wire D, air (bubbles) 120 is mixed in the resin layer 100 that is covered, and there is a problem in the adhesion between the electric wire 110 and the resin layer 100. Further, air (bubbles) 120 is mixed between the electric wires 110, and the degree of adhesion between the electric wires 110 is low.

このように従来の樹脂被覆電線では、図示のように空気が混入しているので、通常の樹脂被覆電線を製造するときに、気候状態による空気の膨張などにより、線自体が一定の均一なものができないという不都合があり、凸が生じているかどうかの検査が必要となっていた。   In this way, in conventional resin-coated electric wires, air is mixed as shown in the figure, so when manufacturing ordinary resin-coated electric wires, the wires themselves are constant and uniform due to expansion of air due to climate conditions, etc. Inconvenience that it was not possible, it was necessary to inspect whether or not the convexity has occurred.

また、導電率についても、従来の樹脂被覆電線は、樹脂被覆内に空気(気泡)が入っているため、被覆内にムラが生じ、そのため、導電率が一定にならないだけでなく、被覆時における気温・気圧の関係によって、品質への影響が大きいという不都合があった。このため、地域によっては、品質に影響のないように特別な対応を行う必要があった。 In addition, with regard to electrical conductivity, the conventional resin-coated electric wires contain air (bubbles) in the resin coating, resulting in unevenness in the coating. Therefore, the electrical conductivity does not become constant, and at the time of coating Due to the relationship between temperature and pressure, there was a disadvantage that the effect on quality was large. For this reason, it was necessary to take special measures so as not to affect the quality in some regions.

そして、従来の樹脂被覆電線に、空気(気泡)が入る原因としては、電線(コイル)自体に入っている空気(気泡)、被覆する樹脂に入っている空気(気泡)等がある。従来から、このように樹脂被覆電線に空気(気泡)が混入することは不可避であると考えられており、止むを得ないものと考えられていた。 The causes of air (bubbles) entering a conventional resin-coated electric wire include air (bubbles) contained in the wire (coil) itself, air (bubbles) contained in the resin to be coated, and the like. Conventionally, it has been considered inevitable that air (bubbles) is mixed into the resin-coated electric wire in this way, and it has been considered inevitable.

本発明の目的は、樹脂と電線(ケーブル)との高い密着を可能とする品質が一定し製造後の検査が不要で、電線及び被覆量を減らしても通電性が高く軽量化が可能で、無検査、コスト節減、作業性や生産性の向上と効率化が可能になる樹脂被覆電線の製造方法及び樹脂被覆電線の製造装置並びに樹脂被覆電線を提供することにある。
本発明の目的は、空気(気泡)が樹脂被覆電線に入らない樹脂被覆電線の製造方法及び樹脂被覆電線の製造装置並びに樹脂被覆電線を提供することにある。
The purpose of the present invention is that the quality that enables high adhesion between the resin and the electric wire (cable) is constant and inspection after production is unnecessary, and even if the electric wire and covering amount are reduced, the electrical conductivity is high and the weight can be reduced. An object of the present invention is to provide a resin-coated electric wire manufacturing method, a resin-coated electric wire manufacturing apparatus, and a resin-coated electric wire that can be inspected, reduced in cost, and improved in workability and productivity.
An object of the present invention is to provide a method for producing a resin-coated electric wire in which air (bubbles) does not enter the resin-coated electric wire, an apparatus for producing a resin-coated electric wire, and a resin-coated electric wire.

前記課題は、本発明の樹脂被覆電線の製造方法によれば、真空条件下において、芯線を真空洗浄する洗浄工程と、該洗浄工程の後で、芯線に樹脂被覆する被覆工程と、前記被覆工程を行った後で冷却する冷却工程と、を備えたこと、により解決される。
また、真空条件下において、芯線を真空洗浄する洗浄工程と、該洗浄工程の後で、芯線に樹脂被覆する被覆工程と、を行い、前記被覆工程を行った後で、常圧下にて冷却する冷却工程と、を備えたこと、により解決される。
According to the method for producing a resin-coated electric wire of the present invention, the subject is a cleaning step of vacuum-cleaning the core wire under vacuum conditions, a coating step of resin-covering the core wire after the cleaning step, and the coating step And a cooling step of cooling after performing the above.
Further, under vacuum conditions, a cleaning process for vacuum-cleaning the core wire and a coating process for coating the core wire with resin after the cleaning process are performed, and after the coating process is performed, cooling is performed under normal pressure. And the cooling step.

このように、真空条件下において、芯線(電線)を真空洗浄しているので、電線に付着しているオイルやゴミなどの微細物の除去が可能となり、芯線が純粋なものとなる。また、このように付着物のない芯線に、真空条件下で樹脂被覆するので、被覆したときの樹脂層との密着性が向上し、同時に、芯線の密着度が向上するために、被覆層を厚くすることが可能となり、より外部からの影響を受けにくくなる。   Thus, since the core wire (electric wire) is vacuum-cleaned under vacuum conditions, it is possible to remove fine substances such as oil and dust adhering to the wire, and the core wire becomes pure. In addition, since the core wire without deposits is coated with a resin under vacuum conditions, the adhesion to the resin layer when coated is improved, and at the same time, the adhesion of the core wire is improved. It can be made thicker, and is less susceptible to external influences.

また、樹脂被覆電線内に空気(気泡)ができるだけ入らない状況とすることが可能であるため、空気の存在によって生じる漏電や放電の問題が生じない。さらに、伝導率が良くなるため通電性がよくなる。このように、通電性がよくなるために、芯線(電線)の量を減らして軽量化することが可能となるだけでなく、芯線(電線)の量を減らしても通電性が良好となるために、従来品に比して品質が劣化することがない。また、全ての工程を真空条件下で行うと、上記作用効果をより確実にすることが可能となる。 In addition, since it is possible to make the state where air (bubbles) does not enter the resin-coated electric wire as much as possible, there is no problem of leakage or discharge caused by the presence of air. Furthermore, since the conductivity is improved, the conductivity is improved. As described above, since the electrical conductivity is improved, not only can the weight of the core wire (electric wire) be reduced, but also the electrical conductivity is improved even if the amount of the core wire (electric wire) is reduced. As a result, quality does not deteriorate compared to conventional products. Moreover, when all the steps are performed under vacuum conditions, the above-described effects can be more reliably ensured.

また前記洗浄工程と前記被覆工程との間で、前記芯線に金属を真空蒸着する蒸着工程を行うと好適である。
このように金属の蒸着工程を備えているために、芯線に二重に被覆をすることが可能となり、電磁波防止、通電効果、漏電防止をさらに確実にすることが可能となる。
Further, it is preferable to perform a vapor deposition step in which a metal is vacuum-deposited on the core wire between the cleaning step and the covering step.
Since the metal vapor deposition step is provided in this way, it is possible to coat the core wire doubly, and it is possible to further ensure prevention of electromagnetic waves, energization effect, and prevention of leakage.

また、前記冷却工程の後工程で、真空状態の乾燥工程を行うように構成する好適である。冷却して乾燥するときに、真空乾燥を行うことにより、より確実に樹脂被覆電線の真空度を確保することが可能となる。 Moreover, it is suitable to comprise so that the drying process of a vacuum state may be performed in the post process of the said cooling process. By performing vacuum drying when cooling and drying, the degree of vacuum of the resin-coated electric wire can be more reliably ensured.

前記樹脂被覆は、ナイロン樹脂を含む熱可塑性樹脂で行うと好適である。このように、樹脂としてナイロン樹脂を含む熱可塑性樹脂を用いることで、吸水性がなくなり、同時に難燃性が高くなり、強度が倍加する。 The resin coating is preferably performed with a thermoplastic resin including a nylon resin. Thus, by using a thermoplastic resin containing a nylon resin as the resin, water absorption is eliminated, and at the same time, flame retardancy is increased, and the strength is doubled.

さらに、前記真空蒸着の金属は、銀、銅、アルミニウム、金を含む貴金属類のいずれかを用いることもできる。このように金属を真空蒸着することにより、芯線(電線)に被覆した金属の性質に応じた機能をもたせることが可能となる。 Furthermore, any of noble metals including silver, copper, aluminum, and gold can be used as the metal for vacuum deposition. Thus, it becomes possible to give the function according to the property of the metal which coat | covered the core wire (electric wire) by vacuum-depositing a metal.

前記課題は、本発明の樹脂被覆電線の製造装置によれば、芯線を供給する真空状態の芯材供給領域と、該芯材供給領域に接続され前記芯線を真空状態で洗浄する洗浄領域と、該洗浄領域と接続された真空状態の押出成形装置によって前記芯線に樹脂被覆する樹脂被覆領域と、該樹脂被覆領域の後工程に配設された真空状態の冷却領域と、を備えたこと、により解決される。
また前記課題は、芯線を供給する真空領域と、該真空領域と接続された真空状態の洗浄領域と、該洗浄領域と接続された真空状態の押出成形装置によって前記芯線に樹脂被覆する樹脂被覆領域と、該樹脂被覆領域の後工程に配設された常圧下の冷却領域と、を備えたこと、により解決される。
According to the resin-coated electric wire manufacturing apparatus of the present invention, the subject is a vacuum core material supply region for supplying a core wire, a cleaning region connected to the core material supply region and cleaning the core wire in a vacuum state, A resin-coated region that is resin-coated on the core wire by a vacuum extrusion apparatus connected to the cleaning region; and a vacuum-cooled region that is disposed in a subsequent process of the resin-coated region, Solved.
In addition, the problem is that a vacuum region for supplying a core wire, a cleaning region in a vacuum state connected to the vacuum region, and a resin-coated region in which the core wire is resin-coated by an extrusion molding apparatus connected to the cleaning region. And a cooling region under normal pressure disposed in a subsequent process of the resin coating region.

また、前記洗浄領域と前記樹脂被覆領域との間に、真空状態の蒸着領域を設けると好適であり、上記冷却領域の後工程に配設された真空状態の乾燥領域を備えると好適である。
このように蒸着領域を備えているために、この蒸着によって芯線に二重に被覆をすることが可能となり、電磁波防止、通電効果、漏電防止をさらに確実にすることが可能となる。
また、冷却して乾燥するときに、真空状態の乾燥領域を備えているために、より確実に樹脂被覆電線の真空度を確保することが可能となる。
In addition, it is preferable to provide a vacuum deposition region between the cleaning region and the resin coating region, and it is preferable to provide a vacuum drying region disposed in a subsequent process of the cooling region.
Since the vapor deposition region is provided in this way, it is possible to coat the core wire doubly by this vapor deposition, and it is possible to further ensure prevention of electromagnetic waves, energization effect, and prevention of leakage.
Moreover, since the vacuum drying region is provided when cooling and drying, the degree of vacuum of the resin-coated electric wire can be more reliably ensured.

前記課題は、本発明の樹脂被覆電線によれば、前記請求項1乃至6のいずれか1項に記載の樹脂被覆電線の製造方法、又は請求項7乃至10のいずれか1項に記載の樹脂被覆電線の製造装置、によって製造されたこと、により解決される。 The said subject is the resin coated electric wire manufacturing method of any one of the said Claim 1 thru | or 6, or the resin of any one of Claim 7 thru | or 10 according to the resin coated electric wire of this invention. It is solved by having been manufactured by the manufacturing apparatus of a covered electric wire.

上記製造方法或いは製造装置によって製造された樹脂被覆電線によれば、空気(気泡)が樹脂被覆電線に入らない、前述した作用効果を備えた樹脂被覆電線を得られることになり、被覆樹脂と電線(ケーブル)との高い密着を可能とする品質が一定し製造後の検査が不要で、電線及び被覆量を減らしても通電性が高く軽量化が可能で、無検査、コスト節減、作業性や生産性の向上と効率化が可能になる。   According to the resin-coated electric wire manufactured by the above-described manufacturing method or manufacturing apparatus, air (bubbles) does not enter the resin-coated electric wire, and the resin-coated electric wire having the above-described effects can be obtained. The quality that enables high adhesion to the cable is constant and inspection after production is not required. Even if the amount of wire and covering is reduced, the electrical conductivity is high and the weight can be reduced. No inspection, cost saving, workability Increases productivity and efficiency.

本発明によれば、被覆樹脂と電線(ケーブル)との高い密着を可能とする品質が一定し製造後の検査が不要で、電線及び被覆量を減らしても通電性が高く軽量化が可能で、無検査、コスト節減、作業性や生産性の向上と効率化が可能になる。
そして、樹脂の被覆量を15〜20%減らすことが可能となり、芯線が密着することによって生産性が向上し、芯線の密着度が高くなるために通電性が高くなるため、芯線の本数を減らすことが可能となり、ハーネス等の場合には細くできて占有断面積スペースも縮減できる。また軽量化と無検査等により作業者の負担がなくなり、作業効率が向上する。
特に、例えば砂漠に太陽エネルギーを電力に変換して都市部へ供給するときに、本発明の樹脂被覆電線を用いると、温度や気圧の影響を少なくして正確な数値で供給でき、品質のよい電気の安定供給が可能となり、電力のロスを少なくして効率よく送電することが可能となるだけでなく、エアコン・テレビ・冷蔵庫等の電気製品、工場・オフィスビル内の配線、電気自動車等のハーネス等で漏電による火災の心配がない。
According to the present invention, the quality that enables high adhesion between the coating resin and the electric wire (cable) is constant, and inspection after manufacturing is not required. No inspection, cost savings, improved workability and productivity and efficiency.
And it becomes possible to reduce the coating amount of the resin by 15 to 20%, the productivity is improved by the close contact of the core wire, and the electrical conductivity is increased because the close contact degree of the core wire is increased, thereby reducing the number of core wires. In the case of a harness or the like, it can be made thinner and the occupied sectional area space can be reduced. In addition, the burden on the operator is eliminated by weight reduction and no inspection, and work efficiency is improved.
In particular, for example, when solar energy is converted into electric power in the desert and supplied to urban areas, if the resin-coated electric wire of the present invention is used, it can be supplied with accurate numerical values with less influence of temperature and atmospheric pressure, and the quality is good. Stable supply of electricity is possible, reducing power loss and enabling efficient power transmission, as well as electrical products such as air conditioners, TVs and refrigerators, wiring in factories and office buildings, electric vehicles, etc. There is no risk of fire due to electrical leakage in harnesses.

本発明の第1の実施形態を示す製造工程の概略図である。It is the schematic of the manufacturing process which shows the 1st Embodiment of this invention. 本発明の第2の実施形態を示す製造工程の概略図である。It is the schematic of the manufacturing process which shows the 2nd Embodiment of this invention. 本発明の第3の実施形態を示す製造工程の概略図である。It is the schematic of the manufacturing process which shows the 3rd Embodiment of this invention. 本発明の第4の実施形態を示す製造工程の概略図である。It is the schematic of the manufacturing process which shows the 4th Embodiment of this invention. 蒸着領域を示す説明図である。It is explanatory drawing which shows a vapor deposition area | region. 洗浄領域と樹脂被覆領域との接合を示す説明図である。It is explanatory drawing which shows joining of a washing | cleaning area | region and a resin coating area | region. 本発明の第5の実施形態を示す製造工程の概略図である。It is the schematic of the manufacturing process which shows the 5th Embodiment of this invention. 樹脂被覆電線の縦断面の説明図である。It is explanatory drawing of the longitudinal cross-section of a resin-coated electric wire. 図7のA−A線断面図である。It is the sectional view on the AA line of FIG. 従来の樹脂被覆電線の縦断面の説明図である。It is explanatory drawing of the longitudinal cross-section of the conventional resin-coated electric wire. 図10のB−B線断面図である。It is the BB sectional view taken on the line of FIG.

以下、本発明の一実施形態について、図を参照して説明する。なお、以下に説明する部材、配置等は、本発明を限定するものではなく、本発明の趣旨に沿って各種改変することができることは勿論である。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. It should be noted that members, arrangements, and the like described below do not limit the present invention, and it goes without saying that various modifications can be made in accordance with the spirit of the present invention.

図1乃至図10は本発明の実施形態を示すものであり、図1は第1の実施形態を示す製造工程の概略図、図2は第2の実施形態を示す製造工程の概略図、図3は第3の実施形態を示す製造工程の概略図、図4は第4の実施形態を示す製造工程の概略図、図5は蒸着領域を示す説明図、図6は洗浄領域と樹脂被覆領域との接合を示す説明図、図7は第5の実施形態を示す製造工程の該略図、図8は樹脂被覆電線の縦断面の説明図で、図9は図8のA−A線断面図、図10は従来の樹脂被覆電線の縦断面の説明図、図11は図10のB−B線断面図である。   FIG. 1 to FIG. 10 show an embodiment of the present invention, FIG. 1 is a schematic view of a manufacturing process showing the first embodiment, and FIG. 2 is a schematic view of the manufacturing process showing the second embodiment. 3 is a schematic diagram of the manufacturing process showing the third embodiment, FIG. 4 is a schematic diagram of the manufacturing process showing the fourth embodiment, FIG. 5 is an explanatory diagram showing a vapor deposition area, and FIG. 6 is a cleaning area and a resin coating area. FIG. 7 is a schematic view of the manufacturing process showing the fifth embodiment, FIG. 8 is an explanatory view of a longitudinal section of the resin-coated electric wire, and FIG. 9 is a sectional view taken along line AA in FIG. 10 is an explanatory view of a longitudinal section of a conventional resin-coated electric wire, and FIG. 11 is a sectional view taken along line BB of FIG.

図1は第1実施形態の製造工程を示す概略図であり、本実施形態の樹脂被覆電線の製造装置Sは、真空容器10と、パイプ体20と、押出成形装置30と、冷却装置40と、真空乾燥装置50と、真空ポンプ60を備えている。本実施形態では真空ポンプ60は、真空容器10と、押出成形装置30と、真空乾燥装置50とに管体70によって連結されており、これらを−100kps以上の真空状態に保持している。 FIG. 1 is a schematic view showing the manufacturing process of the first embodiment. A resin-coated wire manufacturing apparatus S of this embodiment includes a vacuum vessel 10, a pipe body 20, an extrusion molding apparatus 30, a cooling apparatus 40, and the like. A vacuum drying device 50 and a vacuum pump 60 are provided. In the present embodiment, the vacuum pump 60 is connected to the vacuum vessel 10, the extrusion molding device 30, and the vacuum drying device 50 by a pipe body 70, and holds these in a vacuum state of −100 kps or higher.

本例の真空容器10は、芯線110を供給する真空領域を構成するものであり、上記のように真空ポンプ60と連結されている。真空容器10内には、芯線(電線)110の送出リール11が配置され、芯線110は、芯線(電線)110の送出リール11に巻回された状態で、その一端が次のパイプ体20へ導かれている。なお芯線(電線)110送出リール11は、芯線(電線)110の所定テンションにより、芯線(電線)110を樹脂で被覆して樹脂被覆電線Dとした巻取リール12へ巻き取られるように構成されている。   The vacuum container 10 of this example constitutes a vacuum region for supplying the core wire 110 and is connected to the vacuum pump 60 as described above. A delivery reel 11 of a core wire (electric wire) 110 is disposed in the vacuum container 10, and the core wire 110 is wound around the delivery reel 11 of the core wire (electric wire) 110, and one end thereof is connected to the next pipe body 20. Led. The core wire (electric wire) 110 delivery reel 11 is configured to be wound around a take-up reel 12 having a predetermined tension of the core wire (electric wire) 110 and covering the core wire (electric wire) 110 with resin to form a resin-coated electric wire D. ing.

またパイプ体20は所定径をした中空筒体であり、上記真空容器10と接続された真空状態となっており、洗浄装置21が配設されており、洗浄領域を構成している。この洗浄装置21では、水や、メチクロで芯線(電線)110に付着した汚れや油脂分を取るように構成されている。例えば、洗浄容器内を通すことにより洗浄することで、被覆する樹脂との密着性が良好となるだけでなく、油脂分や空気等が混在しないので、発熱しても発火等の虞が極めて少なくなる。 Further, the pipe body 20 is a hollow cylinder body having a predetermined diameter, is in a vacuum state connected to the vacuum vessel 10, is provided with a cleaning device 21, and constitutes a cleaning region. The cleaning device 21 is configured to remove dirt and oils and fats adhering to the core wire (electric wire) 110 with water or methichro. For example, by washing through a washing container, not only the adhesion with the resin to be coated is improved, but also oil and fat, air, etc. are not mixed, so there is very little risk of ignition even if heat is generated. Become.

本例の押出成形装置30は、洗浄領域を構成するパイプ体20と接続された真空状態で芯線110に樹脂被覆する樹脂被覆領域を形成している。押出成形装置30は、真空ホッパー31及び真空ホッパー31に接続されたダイス32と、を備えている。 The extrusion molding apparatus 30 of this example forms a resin-coated region that covers the core wire 110 in a vacuum state connected to the pipe body 20 constituting the cleaning region. The extrusion molding apparatus 30 includes a vacuum hopper 31 and a die 32 connected to the vacuum hopper 31.

本例の樹脂被覆は、ナイロン樹脂で行っており、図6で示されるように、ダイス32の芯線110の挿入口32aから芯線110を通すもので、ダイス32内で芯線110を通すことにより、芯線110を樹脂で被覆することができる。このように、樹脂としてナイロンを用いることで、吸水性がなくなり、同時に難燃性が高くなり、強度が倍加する。 The resin coating of this example is made of nylon resin. As shown in FIG. 6, the core wire 110 is passed through the insertion port 32 a of the core wire 110 of the die 32, and by passing the core wire 110 in the die 32, The core wire 110 can be covered with a resin. Thus, by using nylon as a resin, water absorption is lost, and at the same time, flame retardancy is increased and strength is doubled.

本発明の樹脂被覆電線Dを製造する方法は、芯線(電線)110の供給元(真空容器10)、洗浄、樹脂被覆までが真空状態で行えることが条件となるが、成形機としては、単軸、2軸の押出機など真空ホッパー31と、ダイス32を用いることで、各種の樹脂を被覆することができる。
なお、樹脂にシリコーンを3〜5%混入することにより強度や柔軟性および通電性を高くすることができる。これにより、脱塩化ビニル樹脂とすることが可能になる。
なお、上記実施形態では被覆する樹脂としてナイロンを例示したが、全ての熱可塑性樹脂を用いることが可能である。
The method for producing the resin-coated electric wire D of the present invention requires that the supply source (vacuum vessel 10) of the core wire (electric wire) 110, cleaning, and resin coating can be performed in a vacuum state. Various resins can be coated by using a vacuum hopper 31 such as a biaxial extruder and a die 32.
In addition, intensity | strength, a softness | flexibility, and electricity supply can be made high by mixing 3-5% of silicone with resin. Thereby, it becomes possible to set it as a dechlorinated vinyl resin.
In the above embodiment, nylon is exemplified as the resin to be coated, but all thermoplastic resins can be used.

また被覆技術としては、真空状態を維持した真空ホッパー31から溶融混練機に樹脂を供給して、樹脂の融解ピーク+5〜60℃
の加工温度で混練した後、ダイス32内で芯線(電線)110を取囲んで押し出しする方法、ダイス32出口で電線を取り囲んで押し出しする方法等により電線を被覆する方法等が挙げられる。
Further, as a coating technique, a resin is supplied from a vacuum hopper 31 maintained in a vacuum state to a melt kneader, and a melting peak of the resin +5 to 60 ° C.
Examples thereof include a method in which the core wire (electric wire) 110 is surrounded and extruded in the die 32 after being kneaded at the processing temperature, a method in which the electric wire is covered by a method in which the electric wire is surrounded and extruded at the outlet of the die 32, and the like.

冷却装置40は、樹脂被覆領域としての押出成形装置30の後工程に配設されるもので、常圧下の冷却領域を構成するものである。本例では、樹脂被覆によって、芯線110と共に加熱されている樹脂被覆電線Dを冷却するものである。冷却装置40は公知の装置を用いている。つまり、ダイスから出た直後の被覆電線の冷却手段は特に制限されるものではないが、冷却効率、安定性の面から水冷法が好適に用いられる。 The cooling device 40 is disposed in a subsequent process of the extrusion molding device 30 as a resin coating region, and constitutes a cooling region under normal pressure. In this example, the resin-coated electric wire D heated together with the core wire 110 is cooled by the resin coating. A known device is used as the cooling device 40. That is, the means for cooling the covered wire immediately after coming out of the die is not particularly limited, but a water cooling method is preferably used from the viewpoint of cooling efficiency and stability.

本例の真空乾燥装置50は、冷却領域を構成する冷却装置40の後工程に配設されるもので、真空ポンプ60と管体70を介して真空乾燥装置50と連結して、真空状態の乾燥領域を構成するものである。冷却して乾燥するときに、真空乾燥を行うことにより、より確実に樹脂被覆電線Dの真空度を確保することが可能となる。そして、巻取リール12により樹脂被覆電線Dを巻き取る。 The vacuum drying device 50 of this example is disposed in a subsequent process of the cooling device 40 constituting the cooling region. The vacuum drying device 50 is connected to the vacuum drying device 50 via the vacuum pump 60 and the tube body 70, and is in a vacuum state. It constitutes a dry region. By performing vacuum drying when cooling and drying, the degree of vacuum of the resin-coated electric wire D can be ensured more reliably. Then, the resin-coated electric wire D is taken up by the take-up reel 12.

本実施形態では、送出リール11には、芯線(電線)110が一定量の巻量で巻き取られている。この送出リール11に巻かれている芯線110が一定の線速で送り出され、パイプ体20、押出成形装置30、冷却装置40、真空乾燥装置50で各処理を行い、巻取リール12へ巻き取られる。 In the present embodiment, a core wire (electric wire) 110 is wound around the delivery reel 11 with a certain amount of winding. The core wire 110 wound around the delivery reel 11 is sent out at a constant linear speed, and each process is performed by the pipe body 20, the extrusion molding device 30, the cooling device 40, and the vacuum drying device 50, and the winding wire 12 is taken up. It is done.

以上のように、−100kps真空内では、図7及び図8で示すように、芯線110内の空気が真空圧10Tom圧縮され、芯線110と被覆樹脂との間、芯線110と芯線110に入っている空気(気泡)が抜けることになる。このため、芯線110と被覆樹脂、芯線110と芯線110とが、それぞれ密着され、きれいなひとかたまり(一本)の線となる。このように、膨らんでいる芯線110と芯線110及び被覆樹脂が−100kps真空においては、空気が抜けることにより、線自体の束が細くなり、また芯線110と被覆樹脂との間が細くなる。従って、全体に同じ径の樹脂被覆電線Dの場合には、被覆樹脂の量が多くなる。 As described above, in the -100 kps vacuum, as shown in FIGS. 7 and 8, the air in the core wire 110 is compressed by a vacuum pressure of 10 Tom, and enters the core wire 110 and the core wire 110 between the core wire 110 and the coating resin. Air (bubbles) will escape. For this reason, the core wire 110 and the coating resin, and the core wire 110 and the core wire 110 are in close contact with each other to form a clean lump (one). Thus, when the bulging core wire 110, the core wire 110, and the coating resin are in a −100 kps vacuum, the air itself is released, so that the bundle of the wires themselves becomes thin and the space between the core wire 110 and the coating resin becomes thin. Therefore, in the case of the resin-coated electric wire D having the same diameter as a whole, the amount of the coating resin increases.

そして、上記製造方法及び製造装置では、樹脂被覆の原材料から押出成形機まで、真空となって、空気が入っていないため、均一な被覆が可能であり、また、芯線110自体にも空気が入っていないため、より均一な品質の高い安定した電線ができる。 In the above manufacturing method and manufacturing apparatus, since the vacuum is applied from the resin-coated raw material to the extrusion molding machine and no air is contained, uniform coating is possible, and the core wire 110 itself also contains air. As a result, stable electric wires with higher quality can be obtained.

また、本発明の樹脂被覆電線Dでは、被覆樹脂とその内部が真空状態で被覆されているため、一定の導電率を維持することが可能となるだけでなく、切断面より内側に水が入らないように密着させることが可能となる。このため、強度および通電性の向上が図れると共に、芯線110の本数も10本から8本にしても、通電性が変化しない。   Further, in the resin-coated electric wire D of the present invention, since the coating resin and the inside thereof are coated in a vacuum state, not only can a constant conductivity be maintained, but also water can enter inside the cut surface. It becomes possible to make it closely contact. For this reason, while improving an intensity | strength and electrical conductivity, even if the number of the core wires 110 is 10 to 8, the electrical conductivity does not change.

図2は第2実施形態を示すものであり、図1の実施形態の洗浄領域(洗浄工程、洗浄装置)に続いて、蒸着領域として、芯線110に金属を真空蒸着する蒸着工程(蒸着装置22)を配設したものである。図5に示すように、蒸着装置22としては、加熱源22aと、蒸着源(蒸着用金属)22bを容器22c内に配置して、この容器22c内を芯線110が通過するように構成している。 FIG. 2 shows a second embodiment. Following the cleaning region (cleaning process, cleaning device) of the embodiment of FIG. 1, a vapor deposition step (deposition device 22) that deposits metal on the core wire 110 as a vapor deposition region. ). As shown in FIG. 5, as the vapor deposition apparatus 22, a heating source 22a and a vapor deposition source (metal for vapor deposition) 22b are arranged in a container 22c, and the core wire 110 passes through the container 22c. Yes.

このように蒸着装置22により、金属の蒸着工程を備えているために、芯線110に二重に被覆をすることが可能となり、電磁波防止、通電効果、漏電防止をさらに確実にすることが可能となる。この真空蒸着の金属は、銀、銅、アルミニウム、金を含む貴金属類のいずれかを用いることもできる。このように金属を真空蒸着することにより、芯線110(電線)に被覆した金属の性質に応じた機能を持たせることが可能となる。上記蒸着装置22としては、公知の装置を用いることができる。本実施形態の蒸着装置22は、蒸着源をヒータ等で加熱しているが、電子銃その他の手段を用いて加熱することができるのは公知技術と同様である。   As described above, since the vapor deposition apparatus 22 includes the metal vapor deposition step, the core wire 110 can be covered twice, and the electromagnetic wave prevention, the energization effect, and the leakage prevention can be further ensured. Become. Any of noble metals including silver, copper, aluminum, and gold can be used as the metal for vacuum deposition. Thus, it becomes possible to give the function according to the property of the metal which coat | covered the core wire 110 (electric wire) by vacuum-depositing a metal. A known device can be used as the vapor deposition device 22. In the vapor deposition apparatus 22 of the present embodiment, the vapor deposition source is heated by a heater or the like, but it can be heated by using an electron gun or other means as in the known technique.

本実施形態では、洗浄領域の後に、蒸着領域を設けており、洗浄装置21と蒸着装置22とがパイプ体20内に配設されているものである。なお、金属の蒸発物が洗浄領域に入らないように仕切り等を設けて、蒸着領域を独立させるようにしている。このように、洗浄と蒸着によれば、電線内に空気・油・汚れなどが入っていると漏電により火災になる原因となるが、本発明のように、全真空での電線では空気(酸素)が入っていないため、漏電による火災防止になる。 In the present embodiment, a vapor deposition region is provided after the cleaning region, and the cleaning device 21 and the vapor deposition device 22 are disposed in the pipe body 20. In addition, a partition or the like is provided so that the metal evaporant does not enter the cleaning region, and the vapor deposition region is made independent. Thus, according to cleaning and vapor deposition, if air, oil, dirt, etc. are contained in the electric wire, it may cause a fire due to electric leakage. However, as in the present invention, air (oxygen) ) Does not enter, preventing fire due to electrical leakage.

図3で示す実施形態は、図1で示す例において、乾燥を常圧で行っている例であり、真空ポンプ60が真空乾燥装置50に接続されていない例を示すものである。このように構成しても、優れた樹脂被覆電線Dが製造できる。   The embodiment shown in FIG. 3 is an example in which drying is performed at normal pressure in the example shown in FIG. 1, and shows an example in which the vacuum pump 60 is not connected to the vacuum drying device 50. Even if comprised in this way, the outstanding resin-coated electric wire D can be manufactured.

図4で示す実施形態は、図2で示す例において、乾燥を常圧で行っている例であり、真空ポンプ60が真空乾燥装置50に接続されていない例を示すものである。このように構成しても、優れた樹脂被覆電線Dが製造できる。   The embodiment shown in FIG. 4 is an example in which drying is performed at normal pressure in the example shown in FIG. 2, and shows an example in which the vacuum pump 60 is not connected to the vacuum drying device 50. Even if comprised in this way, the outstanding resin-coated electric wire D can be manufactured.

図7で示す実施形態は、図1で示す例において、全ての構成要素を真空状態にした例である。即ち、本実施形態の樹脂被覆電線の製造装置Sは、全体を気密になるように、金属等によって覆っている。つまり、芯線110の供給される真空容器10aと、被覆された樹脂被覆電線Dの巻取リール12配置される真空容器10bと、パイプ体20と、洗浄装置21と、押出成形装置30と、ダイス32と、冷却装置40と、真空乾燥装置50と、真空ポンプ60を備えており、これらの外周は真空状態を保持するために金属等により被覆されている。   The embodiment shown in FIG. 7 is an example in which all the components in the example shown in FIG. 1 are in a vacuum state. That is, the resin-coated wire manufacturing apparatus S of the present embodiment is covered with metal or the like so as to be airtight. That is, the vacuum container 10a to which the core wire 110 is supplied, the vacuum container 10b in which the take-up reel 12 of the coated resin-coated electric wire D is disposed, the pipe body 20, the cleaning device 21, the extrusion molding device 30, and the die 32, a cooling device 40, a vacuum drying device 50, and a vacuum pump 60, and the outer periphery thereof is covered with a metal or the like in order to maintain a vacuum state.

そして、これらの各装置は、真空ポンプ60と管体70を介して連通されており、同時に、また同様に、真空容器10aと連続するパイプ体20と、パイプ体20内に配置された洗浄装置21と、洗浄装置21と連続するダイス32と、ダイス32と連続する冷却装置40と、冷却装置40と連続する真空乾燥装置50と、真空乾燥装置50と連続する真空容器10bとにより、真空状態が保たれるように構成されている。 These devices communicate with each other via a vacuum pump 60 and a tube body 70, and at the same time, similarly, a pipe body 20 continuous with the vacuum vessel 10a, and a cleaning device disposed in the pipe body 20. 21, a die 32 that is continuous with the cleaning device 21, a cooling device 40 that is continuous with the die 32, a vacuum drying device 50 that is continuous with the cooling device 40, and a vacuum vessel 10 b that is continuous with the vacuum drying device 50. Is configured to be maintained.

なお、図7では図示していないが、図2で示す蒸着装置22も同様に真空状態にして配置した構成にしてもよい。また、図7の例では、真空ポンプ60を管体70で接続した構成例を示しているが、蒸着装置22を配置するパイプ体20にも真空ポンプ60を接続させることで、真空度をより確保することができ、金属膜の被覆精度を高めることが可能となる。
以上のように、樹脂被覆電線の製造装置Sの全体を気密になるように覆って形成しているので、芯線を樹脂で被覆するときに、気泡が被覆内に残留するのをより確実に防止できる。
Although not shown in FIG. 7, the vapor deposition apparatus 22 shown in FIG. 2 may be similarly arranged in a vacuum state. In the example of FIG. 7, the configuration example in which the vacuum pump 60 is connected by the pipe body 70 is shown. However, by connecting the vacuum pump 60 to the pipe body 20 in which the vapor deposition apparatus 22 is arranged, the degree of vacuum can be further increased. It can be ensured, and the coating accuracy of the metal film can be increased.
As described above, since the entire resin-coated electric wire manufacturing apparatus S is formed so as to be airtight, it is more reliably prevented that bubbles remain in the coating when the core wire is coated with resin. it can.

本発明の樹脂被覆電線は、外観、難燃性、柔軟性、耐屈曲性および耐熱性が良好であることから各種用途に展開可能であり、例えば、電気・電子関連用途、精密機械関連機器、事務用機器、家電、住宅、自動車・車両関連部品、医療、航空機関連などに適している。   The resin-coated electric wire of the present invention has good appearance, flame retardancy, flexibility, bending resistance and heat resistance, and can be used in various applications. For example, electrical / electronic related applications, precision machine related equipment, Suitable for office equipment, home appliances, housing, automotive / vehicle-related parts, medical care, aircraft-related, etc.

10a,10b 真空容器
11 送出リール
12 巻取リール
20 パイプ体
21 洗浄装置
22 蒸着装置
22a 加熱源
22b 蒸着源(蒸着用金属)
22c 容器
30 押出成形装置
31 真空ホッパー
32 ダイス
32a 挿入口
40 冷却装置
50 真空乾燥装置
60 真空ポンプ
70 管体
100 樹脂層
110 芯線(電線)
120 空気(気泡)
D 樹脂被覆電線
S 製造装置
10a, 10b Vacuum container 11 Delivery reel 12 Take-up reel 20 Pipe body 21 Cleaning device 22 Deposition device 22a Heating source 22b Deposition source (metal for deposition)
22c Container 30 Extrusion device 31 Vacuum hopper 32 Die 32a Insert 40 Cooling device 50 Vacuum drying device 60 Vacuum pump 70 Tubing body 100 Resin layer 110 Core wire (electric wire)
120 Air (bubbles)
D Resin-coated wire S production equipment

Claims (11)

真空条件下において、芯線を真空洗浄する洗浄工程と、該洗浄工程の後で、芯線に樹脂被覆する被覆工程と、前記被覆工程を行った後で冷却する冷却工程と、を備えたことを特徴とする樹脂被覆電線の製造方法。   A vacuum process for cleaning the core wire under vacuum conditions, a coating process for coating the core wire with resin after the cleaning process, and a cooling process for cooling after the coating process is performed. A method for producing a resin-coated electric wire. 真空条件下において、芯線を真空洗浄する洗浄工程と、該洗浄工程の後で、芯線に樹脂被覆する被覆工程と、を行い、
前記被覆工程を行った後で、常圧下にて冷却する冷却工程と、を備えたことを特徴とする樹脂被覆電線の製造方法。
Under vacuum conditions, a cleaning process for vacuum cleaning the core wire, and a coating process for resin coating the core wire after the cleaning process,
And a cooling step of cooling under normal pressure after performing the covering step.
前記洗浄工程と前記被覆工程との間で、前記芯線に金属を真空蒸着する蒸着工程を行うことを特徴とする請求項1又は2記載の樹脂被覆電線の製造方法。   The method for producing a resin-coated electric wire according to claim 1 or 2, wherein a vapor deposition step of vacuum-depositing a metal on the core wire is performed between the cleaning step and the covering step. 前記冷却工程の後工程で、真空状態の乾燥工程を行うことを特徴とする請求項1又は2記載の樹脂被覆電線の製造方法。   The method for producing a resin-coated electric wire according to claim 1, wherein a drying step in a vacuum state is performed after the cooling step. 前記樹脂被覆は、ナイロン樹脂を含む熱可塑性樹脂で行うことを特徴とする請求項1乃至4のいずれか1項に記載の樹脂被覆電線の製造方法。   The method for producing a resin-coated electric wire according to any one of claims 1 to 4, wherein the resin coating is performed with a thermoplastic resin containing a nylon resin. 前記真空蒸着の金属は、銀、銅、アルミニウム、金を含む貴金属類のいずれかであることを特徴とする請求項3記載の樹脂被覆電線の製造方法。 4. The method for producing a resin-coated electric wire according to claim 3, wherein the metal for vacuum deposition is any one of noble metals including silver, copper, aluminum, and gold. 芯線を供給する真空状態の芯材供給領域と、該芯材供給領域に接続され前記芯線を真空状態で洗浄する洗浄領域と、該洗浄領域と接続された真空状態の押出成形装置によって前記芯線に樹脂被覆する樹脂被覆領域と、該樹脂被覆領域の後工程に配設された真空状態の冷却領域と、を備えたことを特徴とする樹脂被覆電線の製造装置。   A core material supply region in a vacuum state for supplying a core wire, a cleaning region connected to the core material supply region to clean the core wire in a vacuum state, and an extrusion molding device connected to the cleaning region in the vacuum state to the core wire An apparatus for producing a resin-coated electric wire, comprising: a resin-coated region to be resin-coated; and a cooling region in a vacuum state disposed in a subsequent process of the resin-coated region. 芯線を供給する真空領域と、該真空領域と接続された真空状態の洗浄領域と、該洗浄領域と接続された真空状態の押出成形装置によって前記芯線に樹脂被覆する樹脂被覆領域と、該樹脂被覆領域の後工程に配設された常圧下の冷却領域と、を備えたことを特徴とする樹脂被覆電線の製造装置。   A vacuum region for supplying a core wire, a vacuum cleaning region connected to the vacuum region, a resin coating region for resin coating the core wire by a vacuum extrusion apparatus connected to the cleaning region, and the resin coating An apparatus for producing a resin-coated electric wire, comprising: a cooling region under normal pressure disposed in a subsequent process of the region. 前記洗浄領域と前記樹脂被覆領域との間に、真空状態の蒸着領域を設けたことを特徴とする請求項7又は8記載の樹脂被覆電線の製造装置。   The apparatus for producing a resin-coated electric wire according to claim 7 or 8, wherein a vacuum-deposited region is provided between the cleaning region and the resin-coated region. 前記冷却領域の後工程に真空状態の乾燥領域を備えたことを特徴とする請求項7乃至9のいずれか1項に記載の樹脂被覆電線の製造装置。 The apparatus for producing a resin-coated electric wire according to any one of claims 7 to 9, wherein a drying region in a vacuum state is provided in a subsequent process of the cooling region. 前記請求項1乃至6のいずれか1項に記載の樹脂被覆電線の製造方法、又は請求項7乃至10のいずれか1項に記載の樹脂被覆電線の製造装置、によって製造されたことを特徴とする樹脂被覆電線。   It was manufactured by the manufacturing method of the resin-coated electric wire according to any one of claims 1 to 6, or the apparatus for manufacturing the resin-coated electric wire according to any one of claims 7 to 10. Resin-coated electric wire.
JP2009269044A 2008-11-28 2009-11-26 Method and device for manufacturing resin covered cable, and resin covered cable Withdrawn JP2010153376A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109616260A (en) * 2019-01-02 2019-04-12 圣泽电缆有限公司 A kind of cable cooling device for processing
KR20220061353A (en) * 2020-11-06 2022-05-13 이상민 Cables and winding machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109616260A (en) * 2019-01-02 2019-04-12 圣泽电缆有限公司 A kind of cable cooling device for processing
KR20220061353A (en) * 2020-11-06 2022-05-13 이상민 Cables and winding machine
KR102502177B1 (en) 2020-11-06 2023-02-20 이상민 Cables and winding machine

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