KR100485242B1 - Method of forming an electric contact for a vehicle horn - Google Patents
Method of forming an electric contact for a vehicle horn Download PDFInfo
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- KR100485242B1 KR100485242B1 KR10-2002-0064307A KR20020064307A KR100485242B1 KR 100485242 B1 KR100485242 B1 KR 100485242B1 KR 20020064307 A KR20020064307 A KR 20020064307A KR 100485242 B1 KR100485242 B1 KR 100485242B1
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- tungsten
- welding
- tungsten carbide
- horn
- electric contact
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
- H01H11/041—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by bonding of a contact marking face to a contact body portion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q5/00—Arrangement or adaptation of acoustic signal devices
- B60Q5/001—Switches therefor
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Switches (AREA)
Abstract
본 발명에서는 자동차나 오토바이의 경적용 전기접점으로 사용되는 텅스텐 또는 텅스텐카바이드 디스크를 용접하기 위한 재료로서 니켈도금된 은납을 이용하여, 우수한 용접특성을 얻을 수 있다.In the present invention, excellent welding characteristics can be obtained by using nickel-plated silver lead as a material for welding tungsten or tungsten carbide discs used as horn electric contacts for automobiles and motorcycles.
Description
본 발명은 자동차 및 오토바이 등의 차량에 사용하는 경적(Horn)용 전기접점의 제조방법에 관한 것으로, 특히 텅스텐 및 텅스텐카바이드 접점을 철리벳에 용접하는 방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a horn electrical contact for use in vehicles such as automobiles and motorcycles, and more particularly, to a method of welding tungsten and tungsten carbide contacts to an iron rivet.
자동차의 경적용에 사용하는 전기접점인 텅스텐/철(W/FE) 및 텅스텐카바이더/철(WC/FE)을 제조하는 경우, 텅스텐(W) 또는 텅스텐카바이드 디스크를 철로 만든 리벳에 용접으로 제조하고 있다. 도 1은 그러한 경우의 접점의 구성을 나타낸 것이고, 도 2는 그 제조방법을 나타낸 것이다.When manufacturing tungsten / iron (W / FE) and tungsten carbide / iron (WC / FE), the electrical contacts used for horn application of automobiles, tungsten (W) or tungsten carbide discs are made by welding to steel rivets Doing. Fig. 1 shows the configuration of the contact point in such a case, and Fig. 2 shows the manufacturing method thereof.
도 1과 같이 텅스텐 또는 텅스텐카바이드 디스크(1)는 철리벳(3)에 일반적으로 은납(2)을 이용하여 용접되고 있다. As shown in FIG. 1, the tungsten or tungsten carbide disc 1 is welded to the iron rivet 3 using silver lead 2 generally.
혹은 다른 방법으로 텅스텐디스크(1)에 니켈을 도금하여 수소분위기에서 용접하는 방법도 있으며, 그 구체적 방법은 구체적으로 다음과 같다.Alternatively, the tungsten disc 1 may be plated with nickel to be welded in a hydrogen atmosphere, and the specific method thereof is as follows.
도 2에 나타낸 바와 같이, 우선 텅스텐 또는 텅스텐카바이드디스크(1)를 제조하기 위해서는, 텅스텐봉(W-ROD)을 제조한 후(S1), 봉절단에 의해 텅스텐디스크(W-DISK)를 제조하고(S2), 텅스텐디스크(W-DISC) 표면에 텅스텐카바이드처리를 하며(S3), 텅스텐 또는 텅스텐카바이드화된 디스크의 표면처리를 하고(S4), 거기에 니켈도금을 하여 형성된다(S5).As shown in Fig. 2, first, in order to manufacture tungsten or tungsten carbide disc 1, a tungsten rod (W-ROD) is manufactured (S1), and then a tungsten disc (W-DISK) is manufactured by cutting a rod. (S2), the surface of the tungsten disc (W-DISC) is tungsten carbide treated (S3), and the surface of the tungsten or tungsten carbide disc is subjected to surface treatment (S4), which is formed by nickel plating (S5).
철리벳(3)은, 우선 철리벳을 제조한 후에(S6), 철리벳의 표면처리를 실시하여 이루어진다(S7).The iron rivets 3 are made by first producing the iron rivets (S6), and then performing surface treatment of the iron rivets (S7).
용접용 은납(2)은, 은납테이프의 제조 후에(S8), 블랭킹처리에 의해 디스크형태의 은납이 된다(S9).The silver solder for welding 2 becomes disk-shaped silver solder by the blanking process after manufacture of a silver solder tape (S8).
이렇게 형성된 텅스텐 또는 텅스텐카바이드디스크(1)와 철리벳(3)은 은납(2)에 의해 용접(brazing)되는 것이다(S10).The tungsten or tungsten carbide disc 1 and the iron rivet 3 thus formed are welded by the silver lead 2 (S10).
하지만, 이러한 경적용 접접의 용접방법은 다음과 같은 문제점을 지니고 있다.However, the welding method of the horn welding has the following problems.
우선, 은납을 동 또는 은이 함유된 은납을 그대로 사용하여 수소분위기에서 용접할 경우에는, 동 또는 은납(2)이 철에서 흐름성이 좋아서 철리벳(3)과의 용접은 잘되지만, 접접접촉부인 텅스텐 또는 텅스텐카바이드디스크(1)에는 용접이 잘되지 않아 용접강도가 저하되어 자동차경적 사용시 탈락되는 경우가 종종 발생되고 있다.First of all, when welding silver lead in a hydrogen atmosphere using copper or silver lead containing silver as it is, copper or silver lead has good flowability in iron, so welding with the steel rivet 3 works well, The tungsten or tungsten carbide disc 1 is not well welded, so that the welding strength is lowered, so that the tungsten or tungsten carbide disc 1 is often dropped.
또한, 텅스텐 또는 텅스텐카바이드디스크(1)에 니켈을 도금하여 수소분위기에서 용접하는 경우에는, 텅스텐 및 텅스텐카바이드에 니켈도금이 잘되지 않고 제조코스트가 높으며 수소분위기에서 용접할 경우 디스크(1)에 니켈 도금이 잘 되지 않는 경우가 많아서 용접강도가 저하되고 자동차 경적 사용시 탈락되는 경우가 종종 발생한다.In addition, when nickel is plated on tungsten or tungsten carbide disc 1 and welded in a hydrogen atmosphere, nickel plating is poor on tungsten and tungsten carbide, the manufacturing cost is high, and when welding in a hydrogen atmosphere, nickel is applied to the disc 1. In many cases, the plating is not well performed, so that the welding strength is lowered and often dropped when the car horn is used.
본 발명은 상기한 종래기술의 문제점을 극복하기 위한 것으로, 우수한 용접특성을 갖는 차량의 경적용 전기접점의 제조방법을 제공하는 것을 목적으로 한다.The present invention is to overcome the problems of the prior art, it is an object of the present invention to provide a method for manufacturing a horn electric contact of a vehicle having excellent welding characteristics.
상기한 목적으로 달성하기 위한 본 발명의 차량 경적용 전기접점의 제조방법에 의하면, 차량 경적용 전기접점으로 사용되는 텅스텐 또는 텅스텐카바이드 디스크의 용접재료로서 니켈도금된 은납을 이용하는 것을 특징으로 한다.According to the manufacturing method of the vehicle horn electric contact of the present invention for achieving the above object, it is characterized by using nickel-plated silver lead as a welding material of tungsten or tungsten carbide disk used as the vehicle horn electric contact.
상기 은납에 도금되는 니켈의 두께는 0.01~50μm로 하는 것이 바람직하다.It is preferable that the thickness of nickel plated on the said silver lead shall be 0.01-50 micrometers.
또한, 상기 은납에 의해 상기 텅스텐 또는 텅스텐카바이드 디스크와 용접되는 대상이 철(Fe)로 이루어진 것이 바람직하다.In addition, the object to be welded to the tungsten or tungsten carbide disk by the silver lead is preferably made of iron (Fe).
이와 같은 경적용 전기접점의 제조방법에 의하면, 즉, 텅스텐 혹은 텅스텐카바이드 디스크의 용접시에, 은납에 니켈을 도금하여 용접을 실시하는 방법에 의하면, 종래의 방법에 비해 높은 용접강도 및 낮은 실장시 접점탈락율을 갖는다.According to the method of manufacturing the electric contact for horn, that is, when welding the tungsten or tungsten carbide disks by plating nickel with silver lead, the welding strength and the lower mounting time are higher than those of the conventional method. It has a contact dropout rate.
(실시예)(Example)
이하 본 발명의 차량의 경적용 전기접점의 제조방법의 실시예를 도면을 참조하여 상세히 설명한다.Hereinafter, an embodiment of a method of manufacturing a horn electric contact of a vehicle of the present invention will be described in detail with reference to the drawings.
도 3은 본 발명의 경적용 전기접점의 제조방법에 의해 형성된 전기접점을 나타낸 것으로, 철리벳(32)과 텅스텐 디스크 또는 텅스텐카바이드 디스크(텅스텐에 텅스텐카바이드층이 형성된 디스크)(33)와, 그 사이에 형성되어 서로를 용접하여 고정결합시키는 은납(32)으로 이루어져 있으며, 이렇게 형성된 전기접점을 지그(30)의 홈 내에 삽입정렬하여 수소분위기의 콘베이어로를 통과시키고, 이때의 용접온도를 950℃하고 3분간 유지하여 용접을 실시하였다.3 shows an electrical contact formed by the method of manufacturing a horn electric contact of the present invention, which includes an iron rivet 32 and a tungsten disc or a tungsten carbide disc (a disc having a tungsten carbide layer formed on tungsten) 33, and It is formed between the silver lead 32 is welded to each other and fixed to each other, the electrical contact formed in this way into the groove of the jig 30 to pass through the conveyor of the hydrogen atmosphere, the welding temperature at this time 950 ℃ And held for 3 minutes to perform welding.
본 발명의 특징은 은납(32)에 니켈도금이 되어 있는 것이며, 이 은납(32)은 은(Ag)이 40~70% 함유된 납재로 이루어져 있으며, 니켈도금은 0.01~50μm로 형성하면 가장 좋은 효과를 얻을 수 있다.A characteristic of the present invention is that the silver lead 32 is nickel plated, and the silver lead 32 is made of a brazing material containing 40 to 70% of silver (Ag), and the nickel plating is best formed at 0.01 to 50 μm. The effect can be obtained.
본 실시예에서는 텅스텐 또는 텅스텐카바이드 디스크(31)의 크기는 원통지름을 4mm로 하였고 두께를 1mm로 하였다. 철리벳의 크기는 4×1 + 2.5×2.5F로 하였다. 즉, 철리벳의 크기는 얇은 두께의 원통모양의 리벳머리부(31a)의 원통지름을 4mm로 하고, 두께를 1mm로 하였으며, 상대적으로 두꺼운 원통모양의 리벳다리부(31b)의 원통지름와 두께를 모두 2.5mm로 하였으며, 리벳머리부(31a)의 용접부분면을 평탄(F)하게 하였다.In the present embodiment, the size of the tungsten or tungsten carbide disk 31 is 4 mm in diameter and 1 mm in thickness. The size of the iron rivet was 4 × 1 + 2.5 × 2.5F. In other words, the size of the steel rivet is the cylindrical diameter of the thin cylindrical rivet head portion 31a to 4mm, the thickness of 1mm, and the cylindrical diameter and thickness of the relatively thick cylindrical rivet leg portion 31b. All were set to 2.5 mm, and the welded part surface of the rivet head 31 a was flat (F).
본 발명의 경적용 전기접점의 제조방법을 구체적으로 설명하면 다음과 같다.Referring to the method of manufacturing the horn electric contact of the present invention in detail.
도 5에 나타낸 바와 같이, 우선 텅스텐 또는 텅스텐카바이드디스크(31)를 제조하기 위해서는, 텅스텐봉(W-ROD)을 제조한 후(S21), 봉절단에 의해 지름이 4.0mm이고 두께가 1mm인 텅스텐디스크(W-DISK)를 제조하고(S22), 텅스텐디스크(W-DISC) 표면에 텅스텐카바이드처리를 하며(S23), 텅스텐 또는 텅스텐카바이드화된 디스크의 표면처리를 한다(S25).As shown in Fig. 5, first, in order to manufacture tungsten or tungsten carbide disc 31, after manufacturing tungsten rod (W-ROD) (S21), tungsten having a diameter of 4.0 mm and a thickness of 1 mm by cutting the rod A disk W-DISK is manufactured (S22), a tungsten carbide (W-DISC) surface is tungsten carbide treated (S23), and a tungsten or tungsten carbide disk is surface treated (S25).
철리벳(3)은, 우선 철(Fe)을 리벳모양으로 제조한 후에(S26), 철리벳의 표면처리를 실시하여 이루어진다(S27).The iron rivet 3 is made by first producing iron (Fe) into a rivet shape (S26) and then performing surface treatment of the iron rivet (S27).
용접용 은납(2)은, 은납테이프의 제조 후에(S28), 블랭킹처리에 의해 디스크형태이고 40~70%의 은이 함유된 납재로 이루어진 은납이 형성되며(S29), 본 발명의 특징으로서 이 은납에 니켈도금을 실시한다(S30). 도금되는 니켈의 두께는 0.01~50μm의 두께로 하는 것이 바람직하다.The silver solder for welding 2 is formed after the production of the silver lead tape (S28), and a silver lead made of a lead material in the form of a disk and containing 40 to 70% of silver is formed by the blanking treatment (S29), which is a feature of the present invention. Nickel plating is carried out on (S30). It is preferable to make the thickness of nickel plated into thickness of 0.01-50 micrometers.
이렇게 형성된 텅스텐 또는 텅스텐카바이드디스크(31)와 철리벳(33)은 은납(32)에 의해 용접(brazing)되는 것이다.The tungsten or tungsten carbide disk 31 and the iron rivet 33 thus formed are welded by the silver lead 32.
도 4는 본 발명의 비교예를 나타낸 것으로서, 철리벳(23)은 본 발명과 같은 방법으로 형성된다. 본 발명과 다른 점은 은납(22)이 니켈도금이 되어 있지 않다는 것과, 텅스텐카바이드 디스크(21)에 니켈도금이 된 것이다. 그 이외의 용접조건 등은 본 발명과 같이 하였다.Figure 4 shows a comparative example of the present invention, the iron rivet 23 is formed by the same method as the present invention. The difference from the present invention is that the silver lead 22 is not nickel plated, and that the tungsten carbide disk 21 is nickel plated. Other welding conditions were performed as in the present invention.
이러한 방법으로 형성된 비교예의 전기접점을 지그(20)에 삽입정렬하여 본 발명의 실시예와 함께 용접강도 및 실장시 접점부의 탈락 발생율에 대한 비교를 하였으며, 도 6에 나타낸 표와 같이, 본 발명의 실시예에 의하면, 용접강도가 25~34Kg/cm2이었고, 실장시 접점탈락율이 0.002%이었고, 종래방법에 의한 비교예는 각각 16~23Kg/cm2이었고, 0.03%이었다.The electrical contact of the comparative example formed in this way was inserted into the jig 20 and compared with the embodiment of the present invention for the welding strength and the dropout occurrence rate of the contact portion during mounting. As shown in FIG. According to the embodiment, the welding strength was 25 ~ 34Kg / cm 2 , the contact drop rate at the time of mounting was 0.002%, the comparative example by the conventional method was 16 ~ 23Kg / cm 2 , respectively, 0.03%.
이와 같이, 본 발명의 경적용 전기접점의 제조방법에 의하면, 즉, 텅스텐 혹은 텅스텐카바이드 디스크의 용접시에, 은납에 니켈을 도금하여 용접을 실시하는 방법에 의하면, 종래의 방법에 비해 우수한 용접특성을 갖는다.As described above, according to the method of manufacturing the horn electric contact of the present invention, that is, when welding tungsten or tungsten carbide discs by plating nickel with silver lead, welding is superior to the conventional method. Has
도 1은 종래의 차량 경적용 전기접점을 나타낸 도면이다.1 is a view showing a conventional electric horn for a vehicle horn.
도 2는 종래의 차량 경적용 전기접점을 제조하는 방법을 나타낸 도면이다.2 is a view showing a method for manufacturing a conventional electric horn for a vehicle horn.
도 3은 본 발명의 차량 경적용 전기접점을 나타낸 도면이다.3 is a view showing an electrical contact for a vehicle horn of the present invention.
도 4는 비교예의 차량 경적용 전기접점을 나타낸 도면이다.4 is a view showing an electrical contact for a vehicle horn of a comparative example.
도 5는 본 발명의 차량 경적용 전기접점을 제조하는 방법을 나타낸 도면이다.5 is a view showing a method for manufacturing a vehicle horn electrical contact of the present invention.
도 6은 본 발명의 실시예와 비교예의 용접특성을 비교한 결과를 나타낸 표이다.6 is a table showing the results of comparing the welding characteristics of the embodiment of the present invention and the comparative example.
* 도면의 주요부분에 대한 부호설명* Explanation of symbols on the main parts of the drawings
31. 텅스텐카바이드 디스크 32. 용접용 은납31. Tungsten Carbide Disc 32. Silver Lead for Welding
33. 철리벳33. Iron Rivets
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0064307A KR100485242B1 (en) | 2002-10-21 | 2002-10-21 | Method of forming an electric contact for a vehicle horn |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0064307A KR100485242B1 (en) | 2002-10-21 | 2002-10-21 | Method of forming an electric contact for a vehicle horn |
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| Publication Number | Publication Date |
|---|---|
| KR20040034219A KR20040034219A (en) | 2004-04-28 |
| KR100485242B1 true KR100485242B1 (en) | 2005-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2002-0064307A KR100485242B1 (en) | 2002-10-21 | 2002-10-21 | Method of forming an electric contact for a vehicle horn |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100485242B1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59156571A (en) * | 1983-02-24 | 1984-09-05 | Sumitomo Metal Mining Co Ltd | Joining method of parts |
| JPH02103828A (en) * | 1988-10-11 | 1990-04-16 | Fuji Electric Co Ltd | Contact for vacuum switch |
| KR19990045905A (en) * | 1999-02-05 | 1999-06-25 | 정호신 | Diffusion joint method of puberty material |
-
2002
- 2002-10-21 KR KR10-2002-0064307A patent/KR100485242B1/en active IP Right Grant
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59156571A (en) * | 1983-02-24 | 1984-09-05 | Sumitomo Metal Mining Co Ltd | Joining method of parts |
| JPH02103828A (en) * | 1988-10-11 | 1990-04-16 | Fuji Electric Co Ltd | Contact for vacuum switch |
| KR19990045905A (en) * | 1999-02-05 | 1999-06-25 | 정호신 | Diffusion joint method of puberty material |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20040034219A (en) | 2004-04-28 |
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