JPH0410312A - Compound material for electric contact - Google Patents
Compound material for electric contactInfo
- Publication number
- JPH0410312A JPH0410312A JP2110304A JP11030490A JPH0410312A JP H0410312 A JPH0410312 A JP H0410312A JP 2110304 A JP2110304 A JP 2110304A JP 11030490 A JP11030490 A JP 11030490A JP H0410312 A JPH0410312 A JP H0410312A
- Authority
- JP
- Japan
- Prior art keywords
- alloy layer
- oxide
- base material
- core
- area ratio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 38
- 150000001875 compounds Chemical class 0.000 title abstract 4
- 229910001316 Ag alloy Inorganic materials 0.000 claims abstract description 18
- 239000011162 core material Substances 0.000 claims abstract description 14
- 229910052793 cadmium Inorganic materials 0.000 claims abstract description 11
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 10
- 229910052738 indium Inorganic materials 0.000 claims abstract description 10
- 229910052718 tin Inorganic materials 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims description 24
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 10
- 238000005219 brazing Methods 0.000 abstract description 5
- 229910052709 silver Inorganic materials 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910017937 Ag-Ni Inorganic materials 0.000 description 1
- 229910017984 Ag—Ni Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
Landscapes
- Contacts (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野］
本発明は、Ａｇ−酸化物系材料を芯材とし、その外周に
Ａｇ合金層を形成したＡｇ−酸化物系による電気接点用
複合材料に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an Ag-oxide composite material for electrical contacts, which has an Ag-oxide-based material as a core material and an Ag alloy layer formed around its outer periphery. .
電気接点材料として従来、ＡｇやＡｇ−ＮｉあるいはＡ
ｇ中にＣｄおよびＳｎ等の酸化物を分散させた材料が用
いられている。Traditionally, Ag, Ag-Ni or A
A material in which oxides such as Cd and Sn are dispersed in g is used.
なかでも、Ａｇ−Ｃｄ０系は耐溶着性、耐消耗性等に優
れ、使用範囲が広いことで知られているが、加工性や台
材への固着接合が問題となる。Among these, the Ag-Cd0 system is known for its excellent welding resistance, abrasion resistance, etc., and for its wide range of use, but it poses problems in workability and adhesive bonding to the base material.
すなわち、合材と接点との界面にＣｄＯ等の酸化物が存
在するため、非酸化物系の材料と比較してスポット溶接
やろう付けでの接合強度が著しく小さい。そこで、Ａｇ
−Ｃｄ０系材料を母材としてその合材との接合部あるい
は母材の外周にスポット溶接やろう付けを可能にするＡ
ｇ層を形成した材料が考えられている。That is, since oxides such as CdO are present at the interface between the composite material and the contact point, the joint strength by spot welding or brazing is significantly lower than that of non-oxide materials. Therefore, Ag
-A that uses Cd0-based material as a base material and enables spot welding or brazing at the joint with the composite material or on the outer periphery of the base material
Materials that form a g-layer are being considered.
近年、各産業分野における合理化、機械装置の自動化は
目覚ましい発達を遂げているが、これに伴い装置はます
ます大型化、複雑化する傾向にあるのに対し、これらの
制御系は寧ろ小型化、動作の高頻度化、大容量化が要求
されている。また、機器の頻繁な運転に伴いその制御の
スイッチにあってはその接点表面が開閉に伴うアーク熱
やジュール熱によって稼働時には局部的に溶融するほど
の高温に熱せられ、休止時には室温にまで低下すること
になり、高温と低温の熱サイクルが繰り返されることに
なる。In recent years, there has been remarkable progress in rationalization and automation of machinery and equipment in various industrial fields, but as a result, equipment tends to become larger and more complex, whereas these control systems are becoming smaller and more complex. Higher frequency of operation and larger capacity are required. In addition, due to the frequent operation of equipment, the contact surfaces of the control switches are heated to high temperatures that melt locally due to arc heat and Joule heat during opening and closing, and when the equipment is not operating, the temperature drops to room temperature. As a result, thermal cycles of high and low temperatures are repeated.
（発明が解決しようとする課題〕
このような状況下でＡｇ−酸化物系接点材料を使用する
と、頻繁な膨張、収縮を繰り返し受けることになり、接
点内部に複雑な応力が集中的に加わり、接点の表面を凹
面状にするような弓状の湾曲変形が生じるため、スポッ
ト溶接やろう付けを可能にするために設けられたＡｇ層
は接点母材あるいは合材との境界面において引き剥がさ
れるような強い応力を受ける。(Problems to be Solved by the Invention) If Ag-oxide contact materials are used under these circumstances, they will repeatedly undergo frequent expansion and contraction, and complex stress will be intensively applied to the inside of the contacts. Since an arch-like curved deformation occurs that makes the surface of the contact concave, the Ag layer provided to enable spot welding and brazing is peeled off at the interface with the contact base material or composite material. subject to strong stress.
これにより、Ａｇ自体の機械的強度の低さと相まって接
点母材や合材との接合強度に問題が多く発生する。すな
わち、使用時にＡｇ−酸化物系材料の接点性能が充分に
発揮できないまま、接点母材とＡｇまたは合材との剥離
等の現象を生じることになり、それが異常消耗へと発展
するため、これらの改善が望まれている。This, combined with the low mechanical strength of Ag itself, causes many problems in the bonding strength with the contact base material and composite material. In other words, during use, the contact performance of the Ag-oxide material cannot be fully demonstrated, and phenomena such as separation between the contact base material and Ag or composite material occur, which develops into abnormal wear. These improvements are desired.
〔課題を解決する為の手段］
本発明は、Ａｇ中に５〜２０ｗｔχのＣｄ酸化物を分散
させた材料を芯材とし、その外周にＡｇ中にＣｄ、 Ｓ
ｎ、Ｓｂ、 Ｉｎの各元素の内の２種以上を０．０１〜
２ｈｔｚの範囲で添加したＡｇ合金層を形成し、かつそ
の複合材料の断面積全体に占めるＡｇ合金層の面積比率
が５〜４０χであることを特徴とする。[Means for Solving the Problems] The present invention uses a material in which 5 to 20 wtχ of Cd oxide is dispersed in Ag as a core material, and on the outer periphery of the material, Cd and S in Ag are dispersed.
Two or more of each element of n, Sb, In 0.01~
The composite material is characterized by forming an Ag alloy layer added in a range of 2htz and having an area ratio of 5 to 40χ to the entire cross-sectional area of the composite material.
また、Ａｇ中に５〜２０ｉｙｔχのＣｄ酸化物と０．０
５〜５呵χのＳｎ酸化物を分散させた材料を芯材とし、
その外周にＡｇ中にＣｄ、 Ｓｎ、 Ｓｂ、 Ｉｎの各
元素の内の２種以上を０．０１〜２ｈｔｚの範囲で添加
したＡｇ合金層を形成し、かつその複合材料の断面積全
体に占めるＡｇ合金層の面積比率が５〜４ｏｚであるこ
とを特徴とする。In addition, 5 to 20 iytχ of Cd oxide and 0.0
The core material is a material in which 5 to 5 呵χ of Sn oxide is dispersed,
On the outer periphery, an Ag alloy layer is formed by adding two or more of the elements Cd, Sn, Sb, and In in the range of 0.01 to 2htz, and the layer occupies the entire cross-sectional area of the composite material. It is characterized in that the area ratio of the Ag alloy layer is 5 to 4 oz.
さらに、Ａｇ中に５〜２０ｉｕ ｔｚのＣｄ酸化物と０
．０５〜５ｈｔｚのＳｎ酸化物およびＦｅもしくはＮｉ
の１種または双方の酸化物を０．０１〜Ｉｗｔχを分散
させた材料を芯材とし、その外周にＡｇ中にＣｄ、 Ｓ
ｎ、’ Ｓｂ、、Ｉｎの各元素の内の２種以上を０．０
１〜２ｗｔ＄の範囲で添加したＡｇ合金層を形成し、か
つその複合材料の断面積全体に占めるＡｇ合金層の面積
比率が５〜４０Ｘであることを特徴とする。Furthermore, 5 to 20 iu tz of Cd oxide and 0
．． 05-5htz Sn oxide and Fe or Ni
The core material is a material in which one or both of the oxides are dispersed in an amount of 0.01 to Iwtχ.
0.0 of two or more of the elements n, 'Sb, and In
The composite material is characterized in that an Ag alloy layer is added in an amount of 1 to 2 wt$, and the area ratio of the Ag alloy layer to the entire cross-sectional area of the composite material is 5 to 40X.
なお、上記においてＡｇ中に分散させるＣｄ酸化物量を
５〜２０−ｔｚと限定した理由は、５ｉｖ ｔＸ未満で
は開閉時に発生するアークによる清浄効果が期待できな
いためであり、２０ｗ ｔｚを超えるとアークによる消
耗飛散量がむしろ増加するためである。The reason why the amount of Cd oxide dispersed in Ag was limited to 5 to 20-tz in the above is that if it is less than 5iv tX, the cleaning effect due to the arc generated during opening and closing cannot be expected, and if it exceeds 20w tz, the cleaning effect due to the arc generated during opening and closing cannot be expected. This is because the amount of consumption and scattering actually increases.
また、Ｓｎ酸化物量の下限値を０．０５ｗｔχに限定し
た理由は、これ未満の添加ではＳｎ酸化物添加による耐
溶着性の向上が望めないからであり、５ｗｔχを超える
添加では加工性が著しく低下して接点として加工する際
の量産性が問題となるからである。In addition, the reason why the lower limit of the amount of Sn oxide was limited to 0.05wtχ is that if the addition is less than this, it is not possible to improve the welding resistance by adding Sn oxide, and if the addition exceeds 5wtχ, the workability will be significantly reduced. This is because mass productivity becomes a problem when processing them into contacts.
また、ＦｅおよびＮ１の添加は、０．０１ｗｔＸ未満の
添加では結晶粒微細化効果がなく、１ｗｔχを超える添
加では電気抵抗が高くなるなど他の特性に及ぼす影百が
大きくなるからである。Further, if Fe and N1 are added in an amount less than 0.01 wtX, there is no grain refining effect, and if added in more than 1 wtX, the effect on other properties such as increased electrical resistance becomes large.
一方、接点母材の外周に形成するＡｇ合金についてＣｄ
、 Ｓｎ、 Ｓｂ、 Ｉｎの各元素の内の２種以上を添
加する範囲を０．０１〜２ｈｔχに限定した理由を述べ
ると、添加元素の量が０．０１ｗｔχ未満では機械的強
度の向上と元素のれマトリクス中への拡散効果が薄く、
複合強度の増大が期待できないためであり、２ｗ ｔｚ
を超える添加では加工性が低下して被覆・保護効果が薄
れると共に芯材に複合する場合に、複合時の加熱雰囲気
によっては表面にスケールを住して複合が困難になるか
らである。On the other hand, regarding the Ag alloy formed on the outer periphery of the contact base material, Cd
, Sn, Sb, and In, the range for adding two or more of the elements is limited to 0.01 to 2htχ. The diffusion effect into the slip matrix is weak,
This is because an increase in composite strength cannot be expected, and 2w tz
This is because, if added in excess of 20%, the processability will be reduced and the coating/protection effect will be weakened, and when composited into a core material, scale will settle on the surface depending on the heating atmosphere at the time of composite, making it difficult to composite.
また、複合線材または条材断面に占めるＡｇ合金層の比
率は、５ｚ未満では接点母材に対する被覆効果が小さく
なると共に合材へのスポット溶接あるいはろう付けが困
難となり、４０χを超える比率では被覆材の量が多すぎ
て接点特性のうち特に耐溶着性に問題が生じてくるため
である。In addition, if the ratio of the Ag alloy layer to the cross section of the composite wire or strip is less than 5z, the coating effect on the contact base material will be small and spot welding or brazing to the composite material will be difficult, and if the ratio exceeds 40χ, the coating material This is because if the amount is too large, problems will arise in the contact properties, particularly in the welding resistance.
以下に本発明の実施例を図面を用いて説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１実施例
直径１３ｍｍのＡｇ−１２ｗｔ％ＣｄＯの線材に、引き
抜き加工により作成した厚さ０．５ｍｍのＡｇ−０，４
５ｗｔχＣｄ−０，２ｗｔ％Ｉｎのパイプを嵌合・密着
し、７００°Ｃに加熱して引き抜き加工により複合した
。First Example Ag-0.4 with a thickness of 0.5 mm was created by drawing a wire rod of Ag-12wt%CdO with a diameter of 13 mm.
5wtχCd-0.2wt%In pipes were fitted and brought into close contact, heated to 700°C, and composited by drawing.
この線材を不活性雰囲気中６５０°Ｃで４時間加熱して
Ａｇ −１２ｗ ｔＸｃｄｏ とＡｇ−０，４５ｗｔχ
Ｃｄ−０，２ｗｔ％Ｉｎとを相互拡散した。これを不活
性雰囲気中での焼鈍と引き抜き加工を繰り返して直径３
１Ｔ１ｍの線材を得た。This wire was heated at 650°C for 4 hours in an inert atmosphere to give Ag -12w tXcdo and Ag-0,45wtχ
Cd-0 and 2wt%In were interdiffused. This was then repeatedly annealed and drawn in an inert atmosphere to create a diameter of 3 mm.
A wire rod of 1T1m was obtained.
第２実施例
直径１３ｍｍのＡｇ−１８ｉｖｔＺＣｄＯの線材に、引
き抜き加工により作成した厚さ１ｍｍの八ｇ−０，４ｗ
ｔχ５ｎ−０，１５ｗｔχＳｄのパイプを嵌合・密着し
、７００″Ｃに加熱して引き抜き加工により複合した。Second Example 8g-0.4w with a thickness of 1 mm was created by drawing from a Ag-18ivtZCdO wire with a diameter of 13 mm.
tχ5n-0, 15wtχSd pipes were fitted and brought into close contact, heated to 700″C, and composited by drawing.
この線材を不活性雰囲気中６５０°Ｃで４時間加熱して
Ａｇ−１２ｗｔ％ＣｄＯとＡｇ−０，４ｗｔＸ５ｎ−０
，１５ｗｔχｓｂ とを相互拡散した。これを不活性雰
囲気中での焼鈍と引き抜き加工を繰り返して直径３ｍｍ
の線材を得た第３実施例
直径１３ｍｍのＡｇ−１１ｉｖＡｇ−１１ｉｖｔＩＣｄ
Ｏ−４の線材に、引き抜き加工により作成した厚さ１．
５ｍｍのＡｇ−０，０５ｗｔＥｄ−０，３ｗｔ％５ｂ−
０，０５ｗｔＸＩｎのパイプを嵌合・密着し、７００°
Ｃに加熱して引き抜き加工により複合した。This wire was heated at 650°C in an inert atmosphere for 4 hours to form Ag-12wt%CdO and Ag-0.4wtX5n-0.
, 15wtχsb were interdiffused. This was repeatedly annealed in an inert atmosphere and drawn to a diameter of 3 mm.
A third example in which a wire rod of 13 mm in diameter was obtained.Ag-11ivAg-11ivtICd
Thickness 1.0mm made from O-4 wire by drawing process.
5mm Ag-0,05wtEd-0,3wt%5b-
0.05wtXIn pipe is fitted and tightly attached, 700°
It was heated to C and composited by drawing.
この線材を不活性雰囲気中６５０°Ｃで４時間加熱して
ＡｇＡｇ−１１ｉｖｔＸＣｄＯ−４χ５ｎ０２とＡｇ−
０，０５ｗｔχＣｄ−０．３呵χ５ｂ−０．０５１ｗｔ
！Ｉｎとを相互拡散した。これを不活性雰囲気中での焼
鈍と引き抜き加工を繰り返して直径３ｍｍの線材を得た
。This wire was heated at 650°C in an inert atmosphere for 4 hours to form AgAg-11ivtXCdO-4χ5n02 and Ag-
0.05wtχCd-0.3呵χ5b-0.051wt
! and In were mutually diffused. This was repeatedly annealed and drawn in an inert atmosphere to obtain a wire rod with a diameter of 3 mm.
第４実施例
直径１３ｍｍの八ｇ−８ｗｔＩＣｄＯ−５ｗｔ％５ｎＯ
ｚの線材に、引き抜き加工により作成した厚さ０．２ｍ
ｍのＡｇ−０，０５ｗｔ％５ｎ−０，２ｗｔ％５ｂ−０
，０２ｗｔ％Ｉｎのパイプを嵌合・密着し、７００°Ｃ
に加熱して引き抜き加工により複合した。Fourth example 8g-8wtICdO-5wt%5nO with a diameter of 13mm
Thickness 0.2m made from Z wire material by drawing process.
Ag-0,05wt%5n-0,2wt%5b-0 of m
, 02wt%In pipes were fitted and tightly connected, and heated to 700°C.
It was heated to a temperature and composited by drawing.
この線材を不活性雰囲気中６５０°Ｃで４時間加熱して
Ａｇ−８ｗｔχＣｄ０−５ｗｔＸ５ｎＯｚ とＡｇ−０
，０５ｗｔχ５ｎ−０，２ｗｔ％５ｂ−０，０２ｗｔＸ
Ｉｎとを相互拡散した。これを不活性雰囲気中での焼鈍
と引き抜き加工を繰り返して直径３ｍｍの線材を得た。This wire was heated at 650°C in an inert atmosphere for 4 hours to form Ag-8wtχCd0-5wtX5nOz and Ag-0.
,05wtχ5n-0,2wt%5b-0,02wtX
and In were mutually diffused. This was repeatedly annealed and drawn in an inert atmosphere to obtain a wire rod with a diameter of 3 mm.
第５実施例
直径１３ｍｍとしたＡｇ−１０ｗｔχＣｄ０−０．２ｗ
ｔ％５ｎＯｚ−０，０５ｗｔχＦｅｚＯ３の線材に、引
き抜き加工により作成した厚さ１．８ｍｍのＡｇ−０，
２ｗｔ％Ｃｄ−０，２ＷｔχＳｎのパイプを嵌合・密着
し、７００°Ｃに加熱して引き抜き加工により複合した
。Fifth Example Ag-10wtχCd0-0.2w with a diameter of 13mm
Ag-0 with a thickness of 1.8 mm was made by drawing on a t%5nOz-0.05wtχFezO3 wire.
2wt%Cd-0,2WtχSn pipes were fitted and brought into close contact, heated to 700°C, and composited by drawing.
この線材を不活性雰囲気中６５０°Ｃで４時間加熱して
Ａｇ−１０ｗｔχＣｄ０−０．２ｗｔ％５ｎＯｚ−０，
０５ＷｔχＦｅ２Ｏ，とＡｇ−０，２ｗｔ％Ｃｄ−０，
２ＷｔχＳｎとを相互拡散した。これを不活性雰囲気中
での焼鈍と引き抜き加工を繰り返して直径３＋ｙ＋ｍの
線材を得た。This wire was heated at 650°C for 4 hours in an inert atmosphere to give Ag-10wtχCd0-0.2wt%5nOz-0,
05WtχFe2O, and Ag-0,2wt%Cd-0,
2WtχSn were mutually diffused. This was repeatedly annealed and drawn in an inert atmosphere to obtain a wire rod with a diameter of 3+y+m.
第６実施例
直径１３ｍｎ＋としたＡｇ−６ｗｔχＣｄ０−４ｗｔχ
５ｎＯｚ−０，４５ｗｔＸＦｅｚＯｚ−０，４５ｗｔ２
ＮｉＯの線材に、引キ抜キ加工ニヨリ作成した厚さ０．
７５ｍｍのＡｇ−０，１ｗｔｌＣｄ−０，８ｗｔ％Ｓｂ
のパイプを嵌合・密着し、７００°Ｃに加熱して引き抜
き加工により複合した。Sixth Example Ag-6wtχCd0-4wtχ with a diameter of 13mm+
5nOz-0,45wtXFezOz-0,45wt2
A NiO wire rod with a thickness of 0.
75mm Ag-0,1wtlCd-0,8wt%Sb
The pipes were fitted and brought into close contact, heated to 700°C, and then composited by drawing.
この線材を不活性雰囲気中６５０″Ｃで４時間加熱して
八ｇ−６ｗｔＸＣｄＯ−４ｗｔχ５ｎＯｚ−０，４５ｗ
ｔＺＦｅｚＯ：＋−０，４５ｗｔ％ＮｉＯとＡｇ−０，
１ｗｔχＣｄ−０，８ｗｔ！Ｓｂとを相互拡散した。This wire was heated at 650"C in an inert atmosphere for 4 hours to give 8g-6wtXCdO-4wtχ5nOz-0.45w
tZFezO: +-0, 45wt%NiO and Ag-0,
1wtχCd-0,8wt! and Sb were mutually diffused.
これを不活性雰囲気中での焼鈍と引き抜き加工を繰り返
して直径３ｎｏｎの線材を得た。This was repeatedly annealed and drawn in an inert atmosphere to obtain a wire rod with a diameter of 3non.
上記の各線材を長さ２．５ ｍｍに切断した後、合材に
スポット溶接し、剪断接合強度を測定すると共に、市販
のコンタクタ−に組み込み、電圧２２０ν、電流７８Ａ
、力率０．３５で実装テストを行った。After cutting each of the above wire rods to a length of 2.5 mm, they were spot welded to a composite material, the shear joint strength was measured, and the wires were assembled into a commercially available contactor, with a voltage of 220 ν and a current of 78 A.
, a mounting test was conducted at a power factor of 0.35.
そのテスト結果を表に示す。The test results are shown in the table.
なお、比較のために以下の従来技術による結果を載せる
。For comparison, results obtained using the following prior art are shown.
第１従来例
直径１３ｍｍのＡｇ−１２ｉｖｔＸＣｄＯの線材に、引
き抜き加工により作成した厚さ１ｍｍのＡｇのパイプを
嵌合・密着し、７００°Ｃに加熱して引き抜き加工によ
り複合した。First Conventional Example A 1 mm thick Ag pipe made by drawing was fitted and tightly attached to an Ag-12ivtXCdO wire having a diameter of 13 mm, heated to 700°C, and composited by drawing.
この線材を焼鈍と引き抜き加工を繰り返して直径３ｍｍ
の線材を得た。This wire was repeatedly annealed and drawn to a diameter of 3 mm.
A wire rod was obtained.
第２従来例
直径１３ｍｍのＡｇ−１８ｗｔｌＣｄ０の線材に、引き
抜き加工により作成した厚さ０．５ ｍｍのＡｇパイプ
を嵌合・密着し、７００″Ｃに加熱しで引き抜き加工に
より複合した。Second Conventional Example A 0.5 mm thick Ag pipe made by drawing was fitted and tightly attached to an Ag-18wtlCd0 wire having a diameter of 13 mm, heated to 700''C, and composited by drawing.
この線材を焼鈍と引き抜き加工を繰り返して直径３ｍｍ
の線材を得た。This wire was repeatedly annealed and drawn to a diameter of 3 mm.
A wire rod was obtained.
各実施例のテスト結果により、接点母材となる芯材の添
加元素と外周に形成するＡ’ｇ合金の添加元素は同一元
素数の多い方がより効果的であることがわかる。The test results of each example show that it is more effective when the number of elements added to the core material serving as the contact base material is the same as that of the A'g alloy formed on the outer periphery.
〔発明の効果］
以上説明した本発明によると、表に示す通り、合材との
スボント溶接強度もすくれ、実機ムこよる接点開閉テス
トにおいてきわめて優れた効果を示す。[Effects of the Invention] According to the present invention described above, as shown in the table, the spont welding strength with the composite material is also low, and it shows extremely excellent effects in the contact opening/closing test using an actual machine.
Claims (1)
材料を芯材とし、その外周にＡｇ中にＣｄ、Ｓｎ、Ｓｂ
、Ｉｎの各元素の内の２種以上を０．０１〜２ｗｔ％の
範囲で添加したＡｇ合金層を形成し、かつその複合材料
の断面積全体に占めるＡｇ合金層の面積比率が５〜４０
％であることを特徴とする電気接点用複合材料。 ２、Ａｇ中に５〜２０ｗｔ％のＣｄ酸化物と０．０５〜
５ｗｔ％のＳｎ酸化物を分散させた材料を芯材とし、そ
の外周にＡｇ中にＣｄ、Ｓｎ、Ｓｂ、Ｉｎの各元素の内
の２種以上を０．０１〜２ｗｔ％の範囲で添加したＡｇ
合金層を形成し、かつその複合材料の断面積全体に占め
るＡｇ合金層の面積比率が５〜４０％であることを特徴
とする電気接点用複合材料。 ３、Ａｇ中に５〜２０ｗｔ％のＣｄ酸化物と０．０５〜
５ｗｔ％のＳｎ酸化物およびＦｅもしくはＮｉの１種ま
たは双方の酸化物を０．０１〜１ｗｔ％を分散させた材
料を芯材とし、その外周にＡｇ中にＣｄ、Ｓｎ、Ｓｂ、
Ｉｎの各元素の内の２種以上を０．０１〜２ｗｔ％の範
囲で添加したＡｇ合金層を形成し、かつその複合材料の
断面積全体に占めるＡｇ合金層の面積比率が５〜４０％
であることを特徴とする電気接点用複合材料。[Claims] 1. A material in which 5 to 20 wt% of Cd oxide is dispersed in Ag is used as a core material, and on the outer periphery, Cd, Sn, and Sb in Ag are dispersed.
, In is added in an amount of 0.01 to 2 wt% to form an Ag alloy layer, and the area ratio of the Ag alloy layer to the entire cross-sectional area of the composite material is 5 to 40%.
% composite material for electrical contacts. 2. 5-20 wt% Cd oxide in Ag and 0.05-20 wt%
A material in which 5 wt% of Sn oxide was dispersed was used as the core material, and two or more of the elements Cd, Sn, Sb, and In were added to the outer periphery of the material in the range of 0.01 to 2 wt% in Ag. Ag
A composite material for electrical contacts, characterized in that an alloy layer is formed and the area ratio of the Ag alloy layer to the entire cross-sectional area of the composite material is 5 to 40%. 3. 5-20 wt% Cd oxide in Ag and 0.05-20 wt%
The core material is a material in which 5 wt% of Sn oxide and 0.01 to 1 wt% of one or both of Fe or Ni oxides are dispersed, and around the core material, Cd, Sn, Sb,
An Ag alloy layer is formed in which two or more of each element of In is added in a range of 0.01 to 2 wt%, and the area ratio of the Ag alloy layer to the entire cross-sectional area of the composite material is 5 to 40%.
A composite material for electrical contacts characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2110304A JP2884530B2 (en) | 1990-04-27 | 1990-04-27 | Composite materials for electrical contacts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2110304A JP2884530B2 (en) | 1990-04-27 | 1990-04-27 | Composite materials for electrical contacts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0410312A true JPH0410312A (en) | 1992-01-14 |
| JP2884530B2 JP2884530B2 (en) | 1999-04-19 |
Family
ID=14532306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2110304A Expired - Lifetime JP2884530B2 (en) | 1990-04-27 | 1990-04-27 | Composite materials for electrical contacts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2884530B2 (en) |
-
1990
- 1990-04-27 JP JP2110304A patent/JP2884530B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2884530B2 (en) | 1999-04-19 |
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