KR100977994B1 - Manufacturing method of heat resistant vehicle wire with improved wiring harness workability - Google Patents
Manufacturing method of heat resistant vehicle wire with improved wiring harness workability Download PDFInfo
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Abstract
본 발명은 와이어링 하네스 작업성을 향상한 내열성 차량용 전선의 제조방법에 관한 것으로, 특히 와이어링 하네스 작업시 하우징 삽입성을 향상시키기 위하여 전선 피복재의 좌굴하중 강성을 높여 전선의 휘어짐 성을 감소시킨 내열성 차량용 전선의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a heat resistant vehicle electric wire having improved wiring harness workability, and in particular, to improve the housing insertability during the wiring harness operation, by increasing the buckling load rigidity of the wire covering material and reducing the bending resistance of the electric wire. It relates to a method of manufacturing a wire for a vehicle.
본 발명은 차량용 전선의 제조에 있어서, 차량용 전선의 도체선 위에, 베이스기재인 호모폴리프로필렌, 그라프트중합 폴리프로필렌 및 초저밀도폴리에틸렌로 구성된 폴리머 100중량부에 대해 고강성수지 10중량부, 난연제로 수산화마그네슘 100중량부, 산화방지제 2중량부, 강성핵제 1중량부, 활제 2중량부를 첨가하여 이루어진 조성물로 피복하는 것을 특징으로 하는 와이어링 하네스 작업성을 향상한 내열성 차량용 전선의 제조방법이다.According to the present invention, in the manufacture of a vehicle electric wire, 10 parts by weight of a high rigid resin, flame retardant, on a conductor wire of a vehicle electric wire, with respect to 100 parts by weight of a polymer composed of a base material homopolypropylene, graft polymerized polypropylene, and ultra low density polyethylene. It is a manufacturing method of the heat resistant vehicle electric wire which improved the wiring harness workability characterized by coating with the composition which adds 100 weight part of magnesium hydroxide, 2 weight part of antioxidants, 1 weight part of hard nucleating agents, and 2 weight part of lubricant.
전선, 차량용, 좌굴하중 Electric wire, vehicle, buckling load
Description
본 발명은 와이어링 하네스 작업성을 향상한 내열성 차량용 전선의 제조방법에 관한 것으로, 특히 와이어링 하네스 작업시 하우징 삽입성을 향상시키기 위하여 전선 피복재의 좌굴하중 강성을 높여 전선의 휘어짐 성을 감소시킨 내열성 차량용 전선의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a heat resistant vehicle electric wire having improved wiring harness workability, and in particular, to improve the housing insertability during the wiring harness operation, by increasing the buckling load rigidity of the wire covering material and reducing the bending resistance of the electric wire. It relates to a method of manufacturing a wire for a vehicle.
일반적으로 자동차용 전선은 자동차 내부의 협소한 공간에 배치되고, 진동이나 오일 등의 환경에 노출되는 것이므로, 일반 전선과는 달리 특히 난연성, 내열성, 내마모성, 내긁힘성, 하네스성, 가공성, 경량 등의 특성이 요구된다.In general, since automotive wires are arranged in a narrow space inside the vehicle and exposed to an environment such as vibration or oil, they are particularly flame retardant, heat resistant, abrasion resistant, scratch resistant, harness, workability, and light weight, unlike general electrical wires. Characteristics are required.
이러한 자동차용 전선은 환경 및 위치에 따라 온도등급으로 구분하는 경우, 크게 80℃급, 120℃급, 150℃급 및 그 이상 등급으로 구분된다.Such automotive wires are classified into 80 ° C, 120 ° C, 150 ° C and higher grades when they are classified into temperature grades according to the environment and location.
80℃급 자동차용 전선은 주로 내부 인테리어 룸 부분의 일반 배선용으로 사용되는 것으로, 종래에는 그 재료로서 난연성, 가공성 및 하네스성이 우수하면서 또한, 저가인 폴리비닐클로라이드(PVC, Poly-Vinyl Chloride) 조성물이 많이 사용 되어 왔다.80 ℃ class automotive wire is mainly used for general wiring of the interior interior part, and as a material, polyvinyl chloride (PVC) composition which is excellent in flame retardancy, workability and harness, and is low cost This has been used a lot.
120℃급 자동차용 전선은 배터리 전선이나 고온 배선용으로 사용되는 것으로, 종래에는 그 재료로서 예를 들어 에틸렌비닐 아세테이트, 에틸렌 에틸 아세테이트, 에틸렌 메틸 아크릴레이트, 에틸렌 부틸 아크릴레이트, 에틸렌 옥텐 코폴리머 등의 에틸렌 공중합체, 예를 들어 선형저밀도 폴리에틸렌, 저밀도 폴리에틸렌, 중밀도 폴리에틸렌, 고밀도 폴리에틸렌 등의 폴리에틸렌 수지, 클로리네이티드 폴리에틸렌 등의 수지를 단독 또는 혼용하여 가교한 재료를 사용하거나, 상기 수지에 난Automotive wires for 120 ° C class are used for battery wires and high-temperature wiring. Conventionally, ethylene, such as ethylene vinyl acetate, ethylene ethyl acetate, ethylene methyl acrylate, ethylene butyl acrylate and ethylene octene copolymer, is used as the material. Copolymers such as linear low density polyethylene, low density polyethylene, medium density polyethylene, polyethylene resins such as high density polyethylene, resins such as chlorinated polyethylene or the like are used alone or in combination to crosslink materials,
연성을 부여하기 위해 할로겐계 특히 브롬이나 염소계 난연재를 함께 사용하였다.Halogen-based bromine or chlorine-based flame retardants were used together to impart ductility.
또한, 상기 할로겐계 난연재에 더하여 금속 수산화물계 난연재를 일부 첨가하기도 하며, 난연성을 더 향상하기 위해 삼산화 안티몬 등의 난연조제를 함께 사용하기도 하였다.In addition, in addition to the halogen-based flame retardant material, some metal hydroxide-based flame retardant may be added, or a flame retardant aid such as antimony trioxide may be used together to further improve flame retardancy.
150℃ 급이나 그 이상의 등급의 자동차용 전선은 고내열성이 요구되는 엔진부분에 사용되는 것으로, 종래에는 상기 120℃ 급에 사용되는 재료의 산화방지제 및 난연 시스템의 문제점을 보완한 난연 조성물을 사용하였다.Automotive wires of 150 ° C or higher grades are used for engine parts requiring high heat resistance. In the past, flame retardant compositions that complement the problems of antioxidants and flame retardant systems of materials used in the 120 ° C grades have been used. .
그러나 상기 절연재료 중 80℃ 급의 폴리비닐클로라이드 조성물은, 난연성, 가공성 및 하네스성이 우수하면서 특히 우수한 마모성을 보유하여 절연두께가 얇은 전선에 적용이 가능하여 보다 좁은 공간에 배치될 수 있고 절연단가가 낮다는 장점을 갖는 반면, 연소시 다이옥신 및 염화수소가 포함된 유독성 가스가 발생하며 납계 안정제의 유해성 문제가 있어 점차 그 사용이 규제되고 있고, 120℃급, 150℃ 급의 경우도 할로겐계 난연제의 유독성 가스 및 과다한 스모크 발생의 문제로 인해 그 사용이 규제되고 있다.However, the polyvinyl chloride composition of 80 ° C. in the insulating material has excellent flame retardancy, workability and harness, and particularly excellent wearability, so that it can be applied to a wire having a thin insulating thickness and can be disposed in a narrower space. On the other hand, toxic gases containing dioxins and hydrogen chlorides are generated during combustion, and there are harmful effects of lead-based stabilizers. Therefore, their use is gradually regulated. The use of toxic gases and excessive smoke generation is regulated.
따라서 폴리비닐클로라이드나 할로겐계 난연성 조성물을 대체하기 위해 종래에 비할로겐계 폴리올레핀계 수지를 사용하였다.Therefore, non-halogen-based polyolefin resins have been conventionally used to replace polyvinyl chloride or halogen-based flame retardant compositions.
하지만, 지금까지의 차량용 전선은 난연성, 내열성, 내마모성, 내긁힘성등을 극복하는데 연구개발이 진행되어 와서 그에 만족하는 여러 전선이 있으나, 차량용 전선의 작업성을 향상시키는 하네스 작업성, 즉 차량용 전선으로 사용하기 위해서는 도 3a의 하네스 하우징에 전선 삽입 중인 사진 및 도 3b의 하네스 하우징에 전선 삽입 완료된 사진에 나타난 바와 같은 와이어링 하네스(Wiring Harness) 공정을 반드시 거처야 하며, 이 하네스 작업 공정 중 서브 작업시 하우징 삽입성이 떨어져 작업공정의 효율을 떨어뜨리는 문제점이 있었다. However, until now, automotive wires have been developed to overcome flame retardancy, heat resistance, abrasion resistance, scratch resistance, etc., and there are several wires satisfying them, but harness workability that improves workability of vehicle wires, that is, automotive wires In order to use it, the wiring harness process as shown in the photo of inserting the wire into the harness housing of FIG. 3A and the completed insertion of the wire into the harness housing of FIG. 3B must be passed. There was a problem in that the housing insertability is lowered when the efficiency of the work process.
이에 본 발명은 상기와 같은 문제점을 해결하는 것으로, 차량용 전선의 피복재의 좌굴강성을 향상시켜 와이어링 하네스 작업성을 향상한 내열성 차량용 전선을 제공하는 것을 해결하고자 하는 과제로 한다.Accordingly, an object of the present invention is to solve the problems described above, and to provide a heat-resistant vehicle electric wire having improved buckling rigidity of the covering material of the electric vehicle wire and improving the wiring harness workability.
본 발명은 차량용 전선의 제조에 있어서, 차량용 전선의 도체선 위에, 베이스기재인 호모폴리프로필렌, 그라프트중합 폴리프로필렌 및 초저밀도폴리에틸렌로 구성된 폴리머 100중량부에 대해 고강성수지 10중량부, 난연제로 수산화마그네슘 100중량부, 산화방지제 2중량부, 강성핵제 1중량부, 활제 2중량부를 첨가하여 이루어진 조성물로 피복하는 것을 특징으로 하는 와이어링 하네스 작업성을 향상한 내열성 차량용 전선의 제조방법이다.According to the present invention, in the manufacture of a vehicle electric wire, 10 parts by weight of a high rigid resin, flame retardant, on a conductor wire of a vehicle electric wire, with respect to 100 parts by weight of a polymer composed of a base material homopolypropylene, graft polymerized polypropylene, and ultra low density polyethylene. It is a manufacturing method of the heat resistant vehicle electric wire which improved the wiring harness workability characterized by coating with the composition which adds 100 weight part of magnesium hydroxide, 2 weight part of antioxidants, 1 weight part of hard nucleating agents, and 2 weight part of lubricant.
본 발명에 의하면, 차량용 전선의 피복재의 좌굴강성을 향상시켜 와이어링 하네스 작업성을 향상한 내열성 차량용 전선을 제공하는 효과를 갖는다.ADVANTAGE OF THE INVENTION According to this invention, it has the effect of providing the heat resistant vehicle electric wire which improved the buckling rigidity of the coating | cover material of the electric wire of a vehicle, and improved the wiring harness workability.
본 발명을 더욱 상세히 설명하면 다음과 같다.The present invention is described in more detail as follows.
본 발명은 차량용 전선의 제조에 있어서, 차량용 전선의 도체선 위에, 베이스기재인 호모폴리프로필렌, 그라프트중합 폴리프로필렌 및 초저밀도폴리에틸렌 로 구성된 폴리머 100중량부에 대해 고강성수지 10중량부, 난연제로 수산화마그네슘 100중량부, 산화방지제 2중량부, 강성핵제 1중량부, 활제 2중량부를 첨가하여 이루어진 조성물로 피복하는 것을 특징으로 하는 와이어링 하네스 작업성을 향상한 내열성 차량용 전선의 제조방법이다.According to the present invention, in the production of a vehicle electric wire, 10 parts by weight of a high rigid resin, a flame retardant, on a conductor wire of a vehicle electric wire, based on 100 parts by weight of a polymer composed of a base material homopolypropylene, graft polymerized polypropylene, and ultra low density polyethylene. It is a manufacturing method of the heat resistant vehicle electric wire which improved the wiring harness workability characterized by coating with the composition which adds 100 weight part of magnesium hydroxide, 2 weight part of antioxidants, 1 weight part of hard nucleating agents, and 2 weight part of lubricant.
상기의 본 발명의 제조방법에서 베이스 기재로 사용하는 폴리머 조성물은 호모폴리프로필렌, 그라프트중합 폴리프로필렌 및 초저밀도폴리에틸렌로 구성된 폴리머이며, 상기 베이스 기재 폴리머중 호모폴리프로필렌(homo polypropylene) 50중량%, 그라프트 중합 폴리프로필렌 10중량%, 초저밀도폴리에틸렌 40중량%로 이루어진다. The polymer composition used as the base substrate in the production method of the present invention is a polymer composed of homopolypropylene, graft polymerized polypropylene and ultra low density polyethylene, 50% by weight of homo polypropylene in the base substrate polymer, 10 wt% of graft polymerized polypropylene and 40 wt% of ultra low density polyethylene.
상기에서 베이스기재인 폴리머 조성중 호모폴리프로필렌(homo polypropylene)은 전선 피복 절연체의 베이스기재로 사용되며, 용융지수(Melt Index, MI) MI 1.5인 것으로, 좌굴하중 강성을 높이는 역할을 하며, 종래의 차량용 전선 피복에 절연체 조성물의 베이스 기재로 사용되고 있는 폴리에틸렌(PE)에 비해 굴곡 강도가 높다. 양 수지의 굴곡 강도를 비교하면, 종래의 피복절연체 조성인 폴리에틸렌은 굴곡 강도 7000kg/㎠ 인것에 비해, 본 발명에서 사용하는 호모프로필렌의 굴곡강도가 17500kg/㎠ 로 상당히 높다.In the polymer composition as the base material, homo polypropylene is used as the base material of the wire coating insulator, and has a melt index (MI) of MI 1.5, which serves to increase the buckling load stiffness, and is used for conventional vehicles. The flexural strength is higher than that of polyethylene (PE), which is used as the base substrate of the insulator composition for wire coating. Comparing the bending strength of the two resins, the polyethylene having the conventional coating insulation composition has a bending strength of 7000 kg / cm 2, and the bending strength of the homopropylene used in the present invention is 17500 kg / cm 2, which is considerably higher.
또한, 상기 본 발명의 베이스 기재의 한 성분으로 사용하는 그라프트중합 폴리프로필렌은 무수 말레익산과 그라프트 중합한 폴리프로필렌(MAH; Maleic AnHydride 을 graft 시킨 polypropylen)이며, 용융지수(Melt Index, MI) MI2.0인 것으로, 호모 폴리프로필렌과 난연재인 수산화마그네슘이 잘 혼합이 될 수 있게 하는 상용화제 역할을 한다. In addition, the graft polymerization polypropylene used as a component of the base substrate of the present invention is a polypropylene (MAH; polypropylen grafted with maleic anhydride) graft-polymerized with maleic anhydride, and a melt index (MI) It is MI2.0, and serves as a compatibilizer for homomixing homopolypropylene and flame retardant magnesium hydroxide.
상기 베이스 기재의 한 성분인 초저밀도폴리에틸렌(very low density polyethylene; VLDPE)은 용융지수(Melt Index, MI) MI 1.5인 것으로, 난연재인 수산화마그네슘을 로딩할 수 있고, 또한 신장률(늘어나는 정도)을 일정 수준 이상의 물성을 유지해주는 역할을 한다.Very low density polyethylene (VLDPE), which is a component of the base substrate, has a melt index (MI) of MI 1.5, and is capable of loading magnesium hydroxide, which is a flame retardant, and has a constant elongation (extension). It plays a role of maintaining physical properties above the level.
본 발명에서 사용하는 고강성수지는 엔지니어링 플라스틱(Engineering Plastic )을 사용하며, 좌굴하중 강성을 높이는 기능을 한다. 본 발명에서 사용하는 고강성수지는 사불화에틸렌고분자(PTFE), 폴리아마이드(PA), 폴리에스터계 일래스토머(TPEE)중 어느 하나의 성분을 사용하는 것을 특징으로 한다. 상기의 고강성수지중 사불화에틸렌고분자 (PolyTetraFluoro Ethylene; PTFE)는 굴곡강도가 19000kg/㎠ 이며, 폴리아마이드 (Polyamide (PA), 나일론 Nylon)는 굴곡강도가 23000kg/㎠, 폴리에스터계 일래스토머 (Thermoplastic polyester Elastomer, TPEE)는 굴곡강도 : 18000kg/㎠인것을 사용하는데 베이스기재인 호모 폴리프로필렌만으로는 부족한 좌굴하중 강성을 높이는 역할을 한다.The high stiffness resin used in the present invention uses engineering plastics and functions to increase buckling load stiffness. The high rigid resin used in the present invention is characterized by using any one component of ethylene tetrafluoride polymer (PTFE), polyamide (PA), and polyester-based elastomer (TPEE). Polytetrafluoroethylene (PTFE) of the above high stiffness resin has a flexural strength of 19000 kg / cm 2, and polyamide (Polyamide (PA) and nylon nylon) has a flexural strength of 23000 kg / cm 2 and a polyester-based elastomer. (Thermoplastic polyester Elastomer, TPEE) uses a flexural strength of 18000kg / ㎠, which enhances the buckling load stiffness that is not sufficient by the base polypropylene.
상기 본 발명에서 사용하는 난연제로는 표면처리, 1 ∼ 2 ㎛ 입경의 수산화마그네슘 (magnesium di-hydroxide)을 사용하며, 전선 피복의 난연성을 부여한다. 또한, 산화방지제는 통상의 산화방지제를 사용하며 전선의 노화를 지연시키는 첨가제이며, 즉 전선은 도체인 구리와 절연체로 구성이 되는데 구리와 절연체가 접촉이 되어 있는 부분에서 도체의 자유전자가 절연체에 활성을 띄게 하여 노화를 촉진 시킨다 이러한 점을 보완하기 위해 넣어주는 금속안정제이며, 상기의 강성핵제 는 전선의 압출시에 절연체를 구성하는 수지의 결정크기를 유지시켜 주는 첨가제이며, 활제는 전선의 압출시에 윤활 작용을 해 매끄럽게 압출이 되게 도와주는 역할을 한다. As the flame retardant used in the present invention, magnesium hydroxide (magnesium di-hydroxide) having a surface treatment and a particle diameter of 1 to 2 µm is used, and imparts flame retardancy of electric wire coating. In addition, the antioxidant is an additive that delays the aging of the wire using a conventional antioxidant, that is, the wire is composed of a copper and an insulator, where the free electrons of the conductor in the insulator where the copper and the insulator are in contact It is a metal stabilizer put in order to compensate for this, and the above-mentioned rigid nucleating agent is an additive that maintains the crystal size of the resin constituting the insulator when the wire is extruded. It acts as a lubricant to help smooth extrusion.
이하, 본 발명을 실시예로 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to Examples.
실시예Example 1 One
베이스기재로 호모폴리프로필렌(MI;1.5) 50중량%, 무수말레익산 그라프트중합 폴리프로필렌(MI;2.0) 10중량%, 및 초저밀도폴리에틸렌(MI;1.5)로 구성된 폴리머 100중량부에 대해 고강성수지로 사불화에틸렌고분자 (PolyTetraFluoro Ethylene; PTFE)(상품명, 듀폰사의 Tefron제품 )를 10중량부, 난연제로 수산화마그네슘 100중량부, 산화방지제 2중량부, 강성핵제 1중량부, 활제 2중량부를 첨가하여 이루어진 조성물을 제조하고 이 조성물로 피복하여 단면적 0.3㎟의 내열성 차량용 전선을 제조하였다.50% by weight of homopolypropylene (MI; 1.5) as a base, 10% by weight of maleic anhydride graft polymerized polypropylene (MI; 2.0), and 100 parts by weight of a polymer composed of ultra low density polyethylene (MI; 1.5) Add 10 parts by weight of PolyTetraFluoro Ethylene (PTFE) (trade name, Tefron from DuPont) as a rigid resin, 100 parts by weight of magnesium hydroxide, 2 parts by weight of antioxidant, 1 part by weight of hard nucleating agent, and 2 parts by weight of lubricant. Was prepared and coated with this composition to produce a heat-resistant automotive wire having a cross-sectional area of 0.3 mm 2.
실시예Example 2 2
상기 실시예 1에서 고강성수지로 폴리아마이드 (Polyamide (PA 12),나일론Nylon)(상품명;Daicel사의 Daiamid제품)를 10중량부를 사용한 것을 제외하고는 상기 실시예 1과 동일하게 행하여 실시예 2의 피복전선을 제조하였다.The coating of Example 2 was carried out in the same manner as in Example 1 except for using 10 parts by weight of polyamide (Polyamide (PA 12), Nylon (trade name; Daiamid Co., Ltd.) as a highly rigid resin in Example 1 The wire was made.
실시예Example 3 3
상기 실시예 1에서 고강성수지로 폴리에스터계 일래스토머 (Thermoplastic polyester Elastomer, TPEE)(상품명; 삼양사의 TRIPEL)를 10중량부를 사용한 것을 제외하고는 상기 실시예 1과 동일하게 행하여 실시예 3의 피복전선을 제조하였다.The coating of Example 3 was carried out in the same manner as in Example 1, except that 10 parts by weight of a polyester-based elastomer (TPEE) (trade name: Samyang Co., Ltd.) was used as the high stiffness resin. The wire was made.
비교예1Comparative Example 1
상기 본 발명의 실시예와 비교하기 위하여, 종래의 내열성 차량용 전선, 가교폴리에틸렌(XLPE, Crosslinked Polyethylene ) 100중량부를 베이스기재로 하고, 고강성수지를 첨가하지 않고, 비교예 1의 피복전선(단면적 0.3㎟)을 제조하였다(상기에서 가교폴리에틸렌(XLPE)을 피복전선은 전자선을 조사하여 내열특성을 올린 컴파운드의 종류로 가교제를 넣어 제조하며, 전자선 조사는 전선으로 압출 된 상태에서 이루어지고 내열성 전선에서 가장 많이 사용되고 있는 전선의 종류임).In order to compare with the embodiment of the present invention, a conventional heat-resistant vehicle wire, 100 parts by weight of crosslinked polyethylene (XLPE) as a base material, without the addition of high rigid resin, the coated wire of Comparative Example 1 (cross section 0.3 mm2 (The cross-linked polyethylene (XLPE) -coated wire is prepared by adding a crosslinking agent as a kind of compound that has a heat resistance property by irradiating electron beams. Type of wire being used).
시험예Test Example
본 발명에 의한 제조방법으로 얻어진 실시예 1 내지 3의 전선과 비교예 1의 전선의 좌굴하중을 하기의 좌굴하중 평가방법 및 조건으로 측정하여 하기 표 1에 나타냈다.The buckling loads of the wires of Examples 1 to 3 and the wires of Comparative Example 1 obtained by the production method according to the present invention were measured by the following buckling load evaluation method and conditions, and are shown in Table 1 below.
-좌굴은 축 방향에 압력을 받은 기둥이나 판이 어떤 한계를 넘으면 휘어지는 현상이다. - buckling phenomenon is a plate column receiving the pressure in the axis direction and the bending exceeds certain limits.
-좌굴하중은 좌굴을 일으키기 시작한 한계의 압력 (좌굴하중 Pe)으로 하기 수학식1로 얻어진다.The buckling load is obtained by the following equation as the pressure (buckling load Pe) of the limit at which buckling starts.
상기 식에서,π=3.14, E=영계수(굴곡 탄성율 kgf/mm2), I=단면2차모멘트(cm4), In the above formula, π = 3.14, E = Young's modulus (flexural modulus kgf / mm 2 ), I = cross section second moment (cm 4 ),
LK=유효부재길이(cm)LK = effective member length (cm)
좌굴하중Buckling load 평가 방법 및 조건 Evaluation method and condition
- 시험방법 : 도 1은 전선의 좌굴하중을 시험하는 방법을 설명하기 위한 도면이다. 즉, 단자를 고정하여 전선이 좌굴 되기까지의 하중 값 측정(도1참조). 도 2a는 시험전선을 장착한 사진이고, 도 2b는 좌굴된 상태의 전선을 나타내는 사진이다. -Test method: Figure 1 is a view for explaining a method of testing the buckling load of the wire. That is, the measurement of the load value until the wire is buckled by fixing the terminal (see Fig. 1). FIG. 2A is a photograph in which a test wire is mounted, and FIG. 2B is a photograph showing a wire in a buckled state.
좌굴하중Buckling load 평가 방법 및 조건 Evaluation method and condition
- 시험방법 : 단자를 고정하여 전선이 좌굴 되기까지의 하중 값 측정(10회반복측정함) -Test method: Measure the load value until the wire is buckled by fixing the terminal (Repeat 10 times)
- 시험조건 : Push speed(100mm/min), 시료(총40mm) -Test conditions: Push speed (100mm / min), sample (40mm total)
실시예repeat
Example
(단위: Kgf)(Unit: Kgf)
상기 표1에 나타난 바와 같이 본 발명에 의한 실시예 1 내지 3의 좌굴하중강성이 비교예1에 비해 향상된 결과를 얻었다.As shown in Table 1, the buckling load stiffness of Examples 1 to 3 according to the present invention was improved compared to Comparative Example 1.
도 1은 전선의 좌굴하중을 시험하는 방법을 설명하기 위한 도면이다.1 is a diagram for explaining a method for testing a buckling load of an electric wire.
도 2a는 시험전선을 장착한 사진이고, Figure 2a is a photograph equipped with a test wire,
도 2b는 좌굴된상태의 전선을 나타내는 사진이다.2B is a photograph showing an electric wire in a buckled state.
도 3a는 하네스 하우징에 전선 삽입 중인 사진이고,Figure 3a is a picture of the wire being inserted into the harness housing,
도 3b는 하네스 하우징에 전선 삽입 완료된 사진이다.Figure 3b is a picture of the electric wire inserted into the harness housing.
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| JP2002201317A (en) * | 2000-12-28 | 2002-07-19 | Sumitomo Wiring Syst Ltd | Olefinic thermoplastic elastomer composition |
| JP2004359751A (en) * | 2003-06-03 | 2004-12-24 | Fujikura Ltd | Wear-resistant flame-retardant resin composition |
| JP2007329013A (en) * | 2006-06-08 | 2007-12-20 | Fujikura Ltd | Flame-retardant insulated wire and wire harness |
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| JP2002201317A (en) * | 2000-12-28 | 2002-07-19 | Sumitomo Wiring Syst Ltd | Olefinic thermoplastic elastomer composition |
| JP2004359751A (en) * | 2003-06-03 | 2004-12-24 | Fujikura Ltd | Wear-resistant flame-retardant resin composition |
| JP2007329013A (en) * | 2006-06-08 | 2007-12-20 | Fujikura Ltd | Flame-retardant insulated wire and wire harness |
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