KR20170127985A - Manufacturing method for electric contact material and the electric contact material prepared thereby - Google Patents
Manufacturing method for electric contact material and the electric contact material prepared thereby Download PDFInfo
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- KR20170127985A KR20170127985A KR1020160059010A KR20160059010A KR20170127985A KR 20170127985 A KR20170127985 A KR 20170127985A KR 1020160059010 A KR1020160059010 A KR 1020160059010A KR 20160059010 A KR20160059010 A KR 20160059010A KR 20170127985 A KR20170127985 A KR 20170127985A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/131—Wire arc spraying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/08—Metallic material containing only metal elements
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/18—After-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
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Abstract
Description
본 발명은 용사법(thermal spraying)으로 전기 접점 재료를 제조하는 방법 및 상기 방법에 의해 얻어진 전기 접점 재료에 관한 것이다.The present invention relates to a method of manufacturing an electrical contact material by thermal spraying and an electrical contact material obtained by the method.
전기 접점 재료는 개폐기, 차단기 등의 전기기기에서 전기회로의 개폐를 제어하는데 사용되는 통전용 접촉 재료로서, 모터 스위치, 스위치 기어, MCB, 소형 모터 및 램프, 자동차 및 가전제품 등에 적용된다.The electrical contact material is used as a contact material for controlling the opening and closing of electric circuits in electric devices such as switches and breakers, and is applied to motor switches, switchgear, MCB, small motors and lamps, automobiles and household appliances.
이러한 전기 접점 재료는 모재에 용접재를 접합하는 과정을 거쳐 제조되는데, 종래에는 용접재를 용융시켜 접합함에 따라 전기 접점 재료의 접합 불량률이 높고 제조효율이 떨어지는 문제점이 있었다.Such an electrical contact material is manufactured through a process of joining a welding material to a base material. However, conventionally, there has been a problem in that a welding failure rate of the electrical contact material is high and manufacturing efficiency is lowered by melting the welding material.
구체적으로, 종래에는 질소 분위기의 열처리 로를 통해 용융된 용접재를 모재에 도포하여 전기 접점 재료를 제조하였는데, 이와 같이 제조된 전기 접점 재료는 용접재가 균일하게 도포되어 있지 않아(용접재 도포율 80% 이하) 모재와 용접재, 또는 상대재와 용접재 간의 접합 불량을 초래하였다. 또한, 용접재의 융점 온도에 따른 젖음성과 제조공정 조건을 조절해야 함에 따라 전기 접점 재료의 제조시간(lead time, L/T)이 길어지고, 생산 용량(capacity)에도 한계가 있었다.Specifically, conventionally, a welding material melted through a heat treatment furnace in a nitrogen atmosphere is applied to a base material to produce an electrical contact material. Since the electrical contact material thus produced is not uniformly coated with the welding material (welding rate 80 % Or less) caused poor bonding between the base material and the welding material or between the mating material and the welding material. Further, as the wettability according to the melting point temperature of the weld material and the manufacturing process conditions have to be adjusted, the lead time (L / T) of the electrical contact material becomes longer and the production capacity is limited.
따라서 전기 접점 재료의 접합 불량을 최소화하고 제조효율을 향상시킬 수 있는 제조방법이 요구되고 있다.Therefore, there is a demand for a manufacturing method capable of minimizing defective bonding of the electrical contact material and improving manufacturing efficiency.
본 발명은 상기한 문제점을 해결하기 위해, 접합 불량이 최소화되고 제조효율이 향상된 전기 접점 재료의 제조방법을 제공하는 것을 목적으로 한다.In order to solve the above problems, it is an object of the present invention to provide a method of manufacturing an electrical contact material in which defective junction is minimized and manufacturing efficiency is improved.
또한, 본 발명은 상기 제조방법으로 제조된 전기 접점 재료를 제공하는 것을 목적으로 한다.It is another object of the present invention to provide an electrical contact material produced by the above production method.
상기한 목적을 달성하기 위해 본 발명은, a) 모재를 준비하는 단계; 및 b) 상기 모재 상에 용접재를 아크 방전 용사하는 단계를 포함하는 전기 접점 재료의 제조방법을 제공한다.In order to achieve the above object, the present invention provides a method of manufacturing a semiconductor device, comprising: a) preparing a base material; And b) spraying a welding material on the base material by arc discharge.
여기서, 상기 용접재를 아크 방전 용사하는 온도는 2,000 내지 4,000 ℃일 수 있다.Here, the temperature at which the welding material is sprayed by arc discharge may be 2,000 to 4,000 占 폚.
또한, 상기 용접재를 아크 방전 용사하는 속도는 50 내지 60 ㎧이고, 거리는 0.3 내지 2.0 m일 수 있다.In addition, the rate of spraying the welding material by arc discharge may be 50 to 60,, and the distance may be 0.3 to 2.0 m.
또한, 상기 용접재는 아연, 알루미늄, 구리, 철 및 은으로 이루어진 군에서 선택되는 1종 이상의 금속 또는 합금일 수 있다.The welding material may be at least one metal or alloy selected from the group consisting of zinc, aluminum, copper, iron and silver.
또한, 상기 a) 단계는 모재의 표면에 조도를 형성시키는 단계를 포함할 수 있다.In addition, the step a) may include forming a roughness on the surface of the base material.
한편, 본 발명은 상기 제조방법으로 제조된 전기 접점 재료를 제공한다.Meanwhile, the present invention provides an electrical contact material produced by the above-mentioned production method.
이러한 본 발명의 전기 접점 재료는 모재와 용접재의 접합 강도가 270 내지 320 ㎏/㎠일 수 있다.The electrical contact material of the present invention may have a bonding strength of 270 to 320 kg / cm < 2 > between the base material and the welded material.
본 발명은 아크 방전 용사법으로 용접재를 모재에 도포하여 전기 접점 재료를 제조하기 때문에 모재에 용접재가 균일하게 도포되어 모재와 용접재, 또는 상대재와 용접재 간의 접합 불량을 최소화시킬 수 있다. 또한, 전기 접점 재료의 제조시간 및 작업인원이 감소되어 전기 접점 재료의 제조효율을 향상시킬 수 있다. 또한, 모재의 크기 및 형태에 제한없이 전기 접점 재료를 제조할 수 있기 때문에 다양한 크기 및 형태를 가지는 전기 접점 재료를 제공할 수 있다.Since the welding material is manufactured by applying the welding material to the base material by the arc discharge thermal spraying method, the welding material is uniformly applied to the base material, thereby minimizing the bonding failure between the base material and the welding material or between the counter material and the welding material. In addition, the manufacturing time and the number of workers of the electrical contact material can be reduced, and the manufacturing efficiency of the electrical contact material can be improved. In addition, since the electrical contact material can be manufactured without limitation on the size and shape of the base material, it is possible to provide an electrical contact material having various sizes and shapes.
도 1은 본 발명의 전기 접점 재료의 제조방법을 설명하기 위한 참고도이다.
도 2는 본 발명의 실시예 1에서 제조된 전기 접점 재료의 단면을 확인한 이미지이다.
도 3은 본 발명의 비교예 1에서 제조된 전기 접점 재료의 단면을 확인한 이미지이다.BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a reference diagram for explaining a method of manufacturing an electrical contact material of the present invention. Fig.
2 is an image showing a cross section of the electrical contact material produced in Example 1 of the present invention.
3 is an image showing a cross section of the electrical contact material produced in Comparative Example 1 of the present invention.
이하 본 발명을 설명한다.Hereinafter, the present invention will be described.
1. 전기 접점 재료의 제조방법1. Manufacturing method of electrical contact material
a) a) 모재Base material 준비 Ready
먼저, 모재(basic material)를 준비한다. 상기 모재를 이루는 물질은 특별히 한정되지 않으나, 은(Ag), 알루미늄(Al), 구리(Cu), 금(Au) 등을 포함하는 금속 또는 합금일 수 있다. 또한 모재의 형태도 특별히 한정되지 않으나, 판형, 또는 롤형 등을 들 수 있다.First, prepare a basic material. The material forming the base material is not particularly limited, but silver (Ag), aluminum (Al), copper (Cu), gold (Au) And the like. The shape of the base material is not particularly limited, but may be a plate, a roll or the like.
이러한 모재는 표면에 존재하는 불순물을 제거하기 위해 당 업계에 공지된 방법으로 세척하는 것이 바람직하다. 또한, 용접재와의 접합 강도를 높이기 위해 모재의 표면(구체적으로, 용접재가 도포되는 면)에 조도(거칠기)를 형성시키는 과정을 거치는 것이 바람직하다. 이때, 조도를 형성시키는 방법은 특별히 한정되지 않으나, 샌드 블라스트(sand blast) 등을 들 수 있다.Such a base material is preferably washed by a method known in the art in order to remove impurities present on the surface. Further, in order to increase the bonding strength with the welding material, it is preferable to undergo a process of forming roughness on the surface of the base material (specifically, the surface to which the welding material is applied). At this time, a method of forming the roughness is not particularly limited, but sandblast and the like can be mentioned.
b) 아크 방전 용사b)
다음, 준비된 모재 상에 용접재를 아크 방전 용사(arc discharge thermal spraying)한다. 상기 아크 방전 용사는 아크 방전을 이용하여 용접재를 용융시킨 후 입자 상태로 모재 상에 분사하여 용접재를 모재 상에 도포하는 방법이다. 구체적으로, 와이어 형태의 용접재를 도 1과 같은 장치에 공급하여 모재의 표면에 입자 상태의 용접재를 분사하는 것이다.Next, arc discharge thermal spraying is performed on the prepared base material. The arc discharge spraying method is a method of spraying a welding material on a base material by melting the welding material using arc discharge and spraying the same on a base material in a particle state. Specifically, a welding material in the form of a wire is supplied to an apparatus as shown in Fig. 1 to spray a welding material in the form of particles on the surface of the base material.
상기 아크 방전 용사를 통해 모재 상에 용접재를 도포함에 따라 본 발명은 접합 불량이 최소화된 전기 접점 재료를 제공할 수 있으며, 전기 접점 재료의 제조효율도 향상시킬 수 있다.By applying the welding material on the base material through the above-mentioned arc discharge spraying, the present invention can provide the electrical contact material with the minimized defective junction and the manufacturing efficiency of the electrical contact material.
즉, 종래에는 탄소 지그(carbon jig)에 고정된 모재를 질소 분위기의 열처리 로에 통과시켜 용융된 용접재를 모재에 도포하는 방법으로 전기 접점 재료를 제조하였다. 그러나 이러한 방법은 용융된 용접재의 젖음성 부족으로 인해 용접재의 도포량이 일정 기준 이하일 경우 모재와 용접재, 상대재와 용접재 간의 접합 불량이 초래되는 문제점이 있었다. 또한 열처리 로의 컨베이어 벨트(conveyor belt) 속도로 인해 제조시간(L/T)이 길고 양산 용량(capacity)에도 한계가 있어 결과적으로 제조효율이 떨어지는 문제점도 있었다.That is, conventionally, a base material fixed to a carbon jig is passed through a heat treatment furnace in a nitrogen atmosphere, and a molten weld material is applied to the base material to manufacture an electrical contact material. However, this method has a problem in that if the amount of the welding material applied is below a certain level due to insufficient wettability of the molten weld material, bonding failure occurs between the base material and the weld material, and between the mating material and the weld material. In addition, the manufacturing time (L / T) is long due to the conveyor belt speed of the heat treatment furnace, and the capacity is also limited. As a result, the manufacturing efficiency is low.
그러나 본 발명은 아크 방전 용사를 통해 용접재를 미세한 입자 상태로 모재에 도포하기 때문에 용접재가 모재에 균일하게 도포되어 용접재의 도포 불량(용접재 도포율 100 %)이 방지되며, 종래의 방법에 비해 전기 접점 재료의 제조시간이 짧고(구체적으로, 제조시간이 3.5 hr/4 roll -> 1.7 hr/4 roll로 감소) 양산 용량도 높아 제조효율을 향상시킬 수 있다. 또한 고온의 아크 방전을 이용함에 따라 분사되는 용접재의 입자 크기를 제어할 수 있어, 용접재로 이루어진 층의 밀도 및 균일도를 높일 수 있다.However, according to the present invention, since the welding material is coated on the base material in a fine particle state through the arc discharge thermal spraying, the welding material is uniformly applied to the base material to prevent the coating failure of the welding material (the welding material coverage rate is 100%), The manufacturing time of the electrical contact material is short (specifically, the production time is reduced from 3.5 hr / 4 roll to 1.7 hr / 4 roll) and the mass production capacity is also high, which can improve the manufacturing efficiency. Also, by using high-temperature arc discharge, it is possible to control the particle size of the welded material to be injected, thereby increasing the density and uniformity of the layer made of the welded material.
여기서 용접재를 아크 방전 용사하는 온도는 특별히 한정되지 않으나, 2,000 내지 4,000 ℃인 것이 바람직하다. 또한 용접재를 아크 방전 용사하는 속도(분사 속도)와 거리(모재에서 용접재가 분사되는 분사 거리)도 특별히 한정되지 않으나, 속도는 50 내지 60 ㎧이고, 거리는 0.3 내지 2.0 m인 것이 바람직하다. 또한 용접재를 아크 방전 용사하는 전류 세기와 공기(air) 압력도 특별히 한정되지 않으나, 전류 세기가 9 내지 20 kw이고, 공기(air) 압력은 3 내지 7 kg/㎠인 것이 바람직하다. Here, the temperature at which the welding material is sprayed by arc discharge is not particularly limited, but it is preferably 2,000 to 4,000 DEG C The speed (injection speed) and the distance (the spray distance at which the welding material is sprayed from the base material) are not particularly limited, but the speed is preferably 50 to 60 ㎧, and the distance is preferably 0.3 to 2.0 m. Also, the current intensity and the air pressure for spraying the arc material by arc discharge are not particularly limited, but it is preferable that the current intensity is 9 to 20 kW and the air pressure is 3 to 7 kg / cm 2.
이와 같이 용접재를 아크 방전 용사하는 과정은 1회 또는 다수회로 이루어질 수 있으며, 횟수를 조절하여 용접재로 이루어진 층의 두께를 제어할 수 있다.The process of spraying the arc material by the arc discharge may be performed once or a plurality of times, and the thickness of the layer made of the welding material can be controlled by controlling the number of times.
한편, 용접재로 사용 가능한 물질은 특별히 한정되지 않으나, 아연(Zn), 알루미늄(Al), 구리(Cu), 철(Fe) 및 은(Ag)으로 이루어진 군에서 선택되는 1종 이상의 금속 또는 합금인 것이 바람직하다.The material that can be used as the welding material is not particularly limited but may be one or more metals or alloys selected from the group consisting of zinc (Zn), aluminum (Al), copper (Cu), iron (Fe) .
2. 전기 접점 재료2. Electrical contact material
본 발명은 상기 제조방법으로 제조된 전기 접점 재료를 제공한다. 이러한 본 발명의 전기 접점 재료는 상기 제조방법으로 제조되기 때문에 모재와 용접재 간의 접합 강도가 우수하고, 용접재로 이루어진 층이 균일하면서도 치밀한 조직 구조를 가지게 된다. 구체적으로, 본 발명의 전기 접점 재료는 모재와 용접재의 접합 강도가 270 내지 320 ㎏/㎠를 나타낼 수 있다. 이와 같은 본 발명의 전기 접점 재료는 다양한 분야에 적용될 수 있으며, 특히 개폐기, 차단기 등의 전기기기의 전기회로에 유용하게 적용될 수 있다.The present invention provides an electrical contact material produced by the above production method. Since the electrical contact material of the present invention is manufactured by the above manufacturing method, the bonding strength between the base material and the welding material is excellent, and the layer made of the welding material has a uniform and dense structure. Specifically, the electrical contact material of the present invention may exhibit a bonding strength of 270 to 320 kg / cm < 2 > between the base material and the welded material. The electrical contact material of the present invention can be applied to various fields, and particularly applicable to electric circuits of electric devices such as switches and breakers.
이하 본 발명을 실시예를 통하여 상세히 설명하면 다음과 같다. 단, 하기 실시예는 본 발명을 예시하는 것일 뿐, 본 발명이 하기 실시예에 의해 한정되는 것은 아니다.Hereinafter, the present invention will be described in detail with reference to examples. However, the following examples are illustrative of the present invention, and the present invention is not limited by the following examples.
[[ 실시예Example 1] 전기 접점 재료의 제조 1] Manufacture of electrical contact materials
모재로는 롤 형태의 은 합금(은 81.3 %, 카드뮴 18.7 %)을 사용하였고, 용접재로는 와이어 형태의 은 합금(은 15 %, 구리 85 %)을 사용하였다.Silver alloy (silver: 81.3%, cadmium: 18.7%) was used as the base material, and wire type silver alloy (silver: 15%, copper: 85%) was used as the base material.
모재 표면에 아크 방전을 이용하여 용접재를 분사하였다. 이때, 모재와 용접재가 분사되는 거리를 0.5 m로 유지하면서 모재에 아크 방전 용사하는 온도를 3,000 ℃, 속도를 53 ㎧, 전류 세기를 12 kw, 공기 압력을 6 kg/㎠로 하여 2 분간 용접재를 분사하였다. 상기 전기 접점 재료를 제조하는데 1.7 hr/4 roll이 소요되었고, 제조효율이 94 % 였다.The welding material was sprayed on the surface of the base material by arc discharge. At this time, while maintaining the distance between the base material and the welding material at 0.5 m, the base material was sprayed for 2 minutes at a temperature of 3,000 ° C, a velocity of 53 kPa, a current intensity of 12 kW, and an air pressure of 6 kg / . It took 1.7 hr / 4 roll to manufacture the electrical contact material, and the production efficiency was 94%.
[[ 비교예Comparative Example 1] 전기 접점 재료의 제조 1] Manufacture of electrical contact materials
모재로는 롤 형태의 은 합금(은 81.3 %, 카드뮴 18.7 %)을 사용하였고, 용접재로는 테이프 형태의 은 합금(은 15 %, 구리 15 %)을 사용하였다.Silver alloy (silver 81.3%, cadmium 18.7%) was used as the base metal and silver alloy (silver 15%, copper 15%) was used as the welding material.
탄소 지그에 모재를 고정하고, 모재 표면에 용접재를 올려 질소 분위기의 상태에서 800 ℃인 열처리 로를 통과시켰다. 이후 용융된 용접재를 모재에 도포하여 전기 접점 재료를 제조하였다. 상기 전기 접점 재료를 제조하는데 3.5 hr/4 roll이 소요되었고, 제조효율이 88 %였다.The base material was fixed to the carbon jig, and the welding material was placed on the surface of the base material and passed through a heat treatment furnace at 800 ° C in a nitrogen atmosphere. The molten weld material was then applied to the base material to produce an electrical contact material. 3.5 hr / 4 roll was required to manufacture the electrical contact material, and the production efficiency was 88%.
[[ 실험예Experimental Example 1] 단면 확인 1] Cross section confirmation
실시예 1 및 비교예 1에서 제조된 전기 접점 재료의 단면을 광학현미경(Keyence社)으로 확인하였고, 그 결과를 도 2 및 3에 나타내었다.The cross-sections of the electrical contact materials prepared in Example 1 and Comparative Example 1 were confirmed by an optical microscope (Keyence), and the results are shown in FIGS.
도 2 및 3과 같이, 본 발명에 따라 용사법으로 제조된 전기 접점 재료(실시예 1, 도 2)는 모재에 용접재가 99% 이상 도포된 것을 확인할 수 있었고, 종래 열처리 로에서 제조된 전기 접점 재료(비교예 1, 도 3)는 모재에 용접재가 약 80% 도포된 것을 확인할 수 있었다.As shown in Figs. 2 and 3, it was confirmed that the electrical contact material (Example 1, Fig. 2) manufactured by the spraying method according to the present invention had a weld material coated with 99% or more of the weld material, and the electrical contact material (Comparative Example 1, Fig. 3), it was confirmed that about 80% of the welding material was applied to the base material.
[[ 실험예Experimental Example 2] 접합 강도 측정 2] Measurement of bonding strength
실시예 1 및 비교예 1에서 제조된 전기 접점 재료의 접합 강도를 만능재료시험기(태원테크社)로 측정하였고, 그 결과를 하기 표 1에 나타내었다.The bonding strengths of the electrical contact materials prepared in Example 1 and Comparative Example 1 were measured with a universal material testing machine (Taiyuan Tech Co., Ltd.), and the results are shown in Table 1 below.
상기 표 1에 나타낸 바와 같이, 본 발명에 따라 용사법으로 제조된 전기 접점 재료(실시예 1)는 종래 열처리 로에서 제조된 전기 접점 재료(비교예 1)에 비해 접합 강도가 우수한 것을 확인할 수 있었다.As shown in Table 1, it was confirmed that the electrical contact material (Example 1) manufactured by the spraying method according to the present invention had an excellent bonding strength as compared with the electrical contact material (Comparative Example 1) produced in the conventional heat treatment furnace.
Claims (7)
b) 상기 모재 상에 용접재를 아크 방전 용사하는 단계를 포함하는 전기 접점 재료의 제조방법.a) preparing a base material; And
b) a step of spraying the arc weld on the base material.
상기 용접재를 아크 방전 용사하는 온도가 2,000 내지 4,000 ℃인 전기 접점 재료의 제조방법.The method according to claim 1,
Wherein the temperature for spraying the welding material by arc discharge is 2,000 to 4,000 占 폚.
상기 용접재를 아크 방전 용사하는 속도가 50 내지 60 ㎧이고, 거리가 0.3 내지 2.0 m인 전기 접점 재료의 제조방법.The method according to claim 1,
Wherein the speed of spraying the welding material by arc discharge is 50 to 60, and the distance is 0.3 to 2.0 m.
상기 용접재는 아연, 알루미늄, 구리, 철 및 은으로 이루어진 군에서 선택되는 1종 이상의 금속 또는 합금인 전기 접점 재료의 제조방법.The method according to claim 1,
Wherein the welding material is at least one metal or alloy selected from the group consisting of zinc, aluminum, copper, iron and silver.
상기 a) 단계는 모재의 표면에 조도를 형성시키는 단계를 포함하는 전기 접점 재료의 제조방법.The method according to claim 1,
Wherein the step a) includes the step of forming roughness on the surface of the base material.
모재와 용접재의 접합 강도가 270 내지 320 ㎏/㎠인 전기 접점 재료.The method according to claim 6,
Wherein the bonding strength between the base material and the weld material is 270 to 320 kg / cm < 2 >.
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