JP2001355028A - Silver-oxide based contact material - Google Patents
Silver-oxide based contact materialInfo
- Publication number
- JP2001355028A JP2001355028A JP2000176327A JP2000176327A JP2001355028A JP 2001355028 A JP2001355028 A JP 2001355028A JP 2000176327 A JP2000176327 A JP 2000176327A JP 2000176327 A JP2000176327 A JP 2000176327A JP 2001355028 A JP2001355028 A JP 2001355028A
- Authority
- JP
- Japan
- Prior art keywords
- oxide
- cross
- resistance
- section
- load
- 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.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 title claims abstract description 38
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 title abstract description 14
- 229910001923 silver oxide Inorganic materials 0.000 title abstract description 7
- 230000003647 oxidation Effects 0.000 claims abstract description 13
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 13
- 229910001316 Ag alloy Inorganic materials 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 5
- 238000001878 scanning electron micrograph Methods 0.000 claims abstract description 4
- 230000006698 induction Effects 0.000 claims abstract 2
- 238000003466 welding Methods 0.000 claims description 22
- 229910052709 silver Inorganic materials 0.000 claims description 9
- 239000004332 silver Substances 0.000 claims description 7
- 238000010191 image analysis Methods 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000009826 distribution Methods 0.000 abstract description 6
- 229910052738 indium Inorganic materials 0.000 abstract description 3
- 238000004458 analytical method Methods 0.000 abstract 1
- 230000004927 fusion Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 229910052718 tin Inorganic materials 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 11
- 238000011160 research Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010894 electron beam technology Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
Landscapes
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Contacts (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、耐溶着性および
耐消耗性にすぐれ、この結果長い使用寿命を示すように
なる銀―酸化物系電気接点材料に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a silver-oxide based electrical contact material which has excellent welding resistance and wear resistance and, as a result, has a long service life.
【０００２】[0002]
【従来の技術】従来、多くの電気接点材料が提案され、
かつ各種の電気電子機器に組込まれて実用に供されてお
り、これら多くの電気接点材料のうちで、広く実用に供
されている電気接点材料の一つとして、例えば特開平４
−３１４８３７号公報に記載される通り、重量％で（以
下％は重量％を示す）、Ｓｎ：４〜１１％、Ｉｎ：１〜
５％、Ｔｅ：０．０５〜４％、を含有し、さらに必要に
応じて、Ｆｅ、Ｎｉ、およびＣｏのうち1種または2種以
上：０．０１〜１％を含有し、残りがＡｇと残りがＡｇ
よび不可避不純物からなる組成を有するＡｇ合金に、内
部酸化処理、すなわち酸化雰囲気中、温度：７００℃に
２４時間保持の内部酸化処理を施してなる銀ー酸化物系
電気接点材料が知られている。2. Description of the Related Art Conventionally, many electrical contact materials have been proposed.
In addition, it is incorporated in various electric and electronic devices and used for practical use. Among these many electric contact materials, one of widely used electric contact materials is disclosed in
As described in JP-A-314837, in terms of% by weight (% indicates% by weight), Sn: 4 to 11%, In: 1 to 1
5%, Te: 0.05 to 4%, and if necessary, one or more of Fe, Ni, and Co: 0.01 to 1%, with the balance being Ag And the rest is Ag
A silver-oxide-based electrical contact material is known in which an Ag alloy having a composition including unavoidable impurities is subjected to an internal oxidation treatment, that is, an internal oxidation treatment in an oxidizing atmosphere at a temperature of 700 ° C. for 24 hours. .
【０００３】[0003]
【発明が解決しようとする課題】一方、近年の電気電子
機器の消費電力低減を図るために、電気回路のON／OFF
を頻繁に行うような機器設計がなされるようになり、機
器の高性能化および使用寿命の長期化はめざましく、こ
れに伴い、これに組込まれる電気接点材料にもより一層
の耐溶着性および耐消耗性の向上が要求される傾向にあ
るが、上記の従来電気接点材料はじめ、その他多くの電
気接点材料は耐溶着性および耐消耗性が十分でなく、こ
れらの要求に満足に対応することができないのが現状で
ある。On the other hand, in order to reduce the power consumption of electric and electronic equipment in recent years, the ON / OFF of electric circuits has been reduced.
In addition, the design of equipment that performs frequent welding has become remarkable, and the high performance and long service life of the equipment have been remarkable. As a result, the electrical contact materials incorporated in the equipment have further increased welding resistance and resistance. There is a tendency for improved wearability, but many other electrical contact materials, such as the above-mentioned conventional electrical contact materials, do not have sufficient welding resistance and wear resistance, and can satisfy these requirements satisfactorily. It is not possible at present.
【０００４】そこで、本発明者らは、上述のような観点
から、特に上記の従来電気接点材料に着目し、これの耐
溶着性および耐消耗性の一段の向上をはかるべく研究を
行なった結果、接点材料中に分散した酸化物粒子の粒度
分布と接点寿命との関連を見出した。そして、酸化物の
粒度分布をコントロールすることによって、抵抗負荷お
よびコイル負荷の用途において安定して高い接点寿命を
得ることができたものである。[0004] In view of the above, the present inventors have paid particular attention to the above-mentioned conventional electrical contact materials, and have conducted research to further improve the welding resistance and wear resistance thereof. The relationship between the particle size distribution of oxide particles dispersed in the contact material and the contact life was found. By controlling the particle size distribution of the oxide, a long contact life can be stably obtained in applications of resistance load and coil load.
【０００５】この発明は、かかる知見に基づいてなされ
たものであって、即ち、（a）重量％でＳｎ：３〜９．
５％、Iｎ：１〜５％、Ｔｅ：０．０５〜０．８％を含
有し、残りがＡｇよび不可避不純物からなる組成を有す
るＡｇ合金に、内部酸化処理を施してなる電気接点材料
であり、（ｂ）さらに、重量％でＳｎ：３〜９．５％、
Iｎ：１〜５％、Ｔｅ：０．０５〜０．８を含有し、さ
らに、Ｆｅ、ＮｉおよびＣｏのうちの１種または2種以
上：０．０１〜０．５％を含有し、残りがＡｇよび不可
避不純物からなる組成を有するＡｇ合金に、内部酸化処
理を施してなる電気接点材料である。（ｃ）上記
（a）、（ｂ）の材料断面のＳＥＭ像の画像解析により
測定した酸化物断面の円相当径の平均が０．１〜０．２
μｍで、かつ円相当径が０．１〜０．４μｍの範囲に含
まれる酸化物断面の面積の和が、総酸化物断面積の７５
％以上を占め、抵抗負荷および誘導負荷における耐溶着
性ならびに耐消耗性にすぐれた銀・酸化物系接点材料
は、上記の従来銀―酸化物系電気接点材料に比して一段
とすぐれた耐溶着性ならびに耐消耗性を具備するという
研究結果を得たのである。The present invention has been made on the basis of such findings, that is, (a) Sn: 3 to 9% by weight%.
An electrical contact material obtained by subjecting an Ag alloy containing 5%, In: 1 to 5%, Te: 0.05 to 0.8% and having a composition consisting of Ag and unavoidable impurities to an internal oxidation treatment. (B) Sn: 3 to 9.5% by weight.
In: 1 to 5%, Te: 0.05 to 0.8, one or more of Fe, Ni and Co: 0.01 to 0.5% Is an electrical contact material obtained by subjecting an Ag alloy having a composition consisting of Ag and unavoidable impurities to an internal oxidation treatment. (C) The average of the equivalent circle diameter of the oxide cross section measured by image analysis of the SEM image of the material cross section of (a) and (b) is 0.1 to 0.2.
μm, and the sum of the oxide cross-sectional areas included in the circle equivalent diameter range of 0.1 to 0.4 μm is 75% of the total oxide cross-sectional area.
The silver-oxide contact material, which occupies more than 1% and has excellent resistance to welding and wear under resistive and inductive loads, is more excellent in welding resistance than the above-mentioned conventional silver-oxide electrical contact material. The research results show that it has good resistance and wear resistance.
【０００６】[0006]
【発明の実施の形態】この発明は、上記の研究結果に基
づいてなされたものであって、以下に銀・酸化物系電気
接点材料の内部酸化処理前のＡｇ合金の成分組成を上記
の通りに限定した理由を説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention has been made based on the above research results, and the composition of the Ag alloy before the internal oxidation treatment of the silver / oxide electrical contact material is as follows. The reason for the limitation is explained.
【０００７】（１）Ｓｎ Ｓｎ成分には、主体が酸化物を形成して耐溶着性を向上
させる作用があるが、その含有量が３％未満では所望の
耐溶着性向上効果が得られず、一方その含有量が９．５
％を越えると、接点としての接触抵抗が過大になると共
に、製造時の加工性が低下するようになることから、そ
の含有量を３〜９．５％と定めた。(1) Sn The Sn component has a function of mainly forming an oxide to improve the welding resistance, but if its content is less than 3%, the desired effect of improving the welding resistance cannot be obtained. , While its content is 9.5
%, The contact resistance as a contact point becomes excessive and the workability at the time of production is reduced. Therefore, the content is determined to be 3 to 9.5%.
【０００８】（２）Ｉｎ Ｉｎ成分には、Ｓｎ成分の酸化を促進すると共に、自身
も酸化物を形成して耐溶接性および耐消耗性を向上させ
る作用があるが、その含有量が１％未満では前記作用に
所望の効果が得られず、一方その含有量が５％を越える
と耐溶着性に劣化傾向が現れるようになることから、そ
の含有量を１〜５％と定めた。(2) In The In component has the effect of accelerating the oxidation of the Sn component and also forming an oxide itself to improve the welding resistance and wear resistance, but the content is 1%. If the content is less than 5%, the desired effect cannot be obtained. On the other hand, if the content exceeds 5%, the welding resistance tends to deteriorate, so the content is set to 1 to 5%.
【０００９】（３）Ｔｅ Ｔｅ成分には、接点開閉によるアーク発生時に昇華し易
い酸化物を形成し、耐溶着性および耐消耗性を一段と向
上させる作用があるが、その含有量が０．０５％未満で
は前記作用に所望の向上効果が得られず、一方その含有
量が０．８％を越えると加工性が低下するようになるこ
とから、その含有量を０．０５〜０．８％と定めた。(3) Te The Te component has an effect of forming an oxide which is easily sublimated when an arc is generated by opening and closing a contact, thereby further improving the welding resistance and the wear resistance. If the content is less than 0.8%, a desired improvement effect cannot be obtained, and if the content exceeds 0.8%, the workability is reduced. It was decided.
【００１０】（４）Ｆｅ、ＮｉおよびＣｏ これらの成分には、素地に固溶して酸化物およびＡｇ粒
を微細化し、もって耐溶着性を向上させる作用があるの
で、必要に応じて含有されるが、その含有量が０．０１
％未満では前記作用に所望の効果が得られず、一方その
含有量が０．５％を越えると加工性が低下するようにな
ることから、その含有量を０．０１〜０．５％と定め
た。(4) Fe, Ni and Co Since these components have the effect of forming a solid solution in the base material to refine oxides and Ag grains and thereby improving the welding resistance, they are contained as necessary. But the content is 0.01
When the content is less than 0.5%, the desired effect cannot be obtained, and when the content exceeds 0.5%, the workability is reduced. I decided.
【００１１】この発明は、また上記の研究結果にもとづ
いてなされたものであって、接点材料中に分散した酸化
物粒子の粒度分布と接点寿命との関連についての知見に
より、酸化物の粒度分布を最適値にコントロールするこ
とによって、抵抗負荷およびコイル負荷の用途において
安定して高い接点寿命を得ることができたものである。The present invention has also been made based on the above research results, and based on the knowledge about the relationship between the particle size distribution of oxide particles dispersed in the contact material and the contact life, the particle size distribution of the oxide Is controlled to the optimum value, and a long contact life can be stably obtained in applications of resistance load and coil load.
【００１２】具体的には、接点製造工程における内部酸
化処理の条件を適当に設定し、接点材料の任意断面に現
れる酸化物粒子断面の円相当径の平均が０．１〜０．２
μｍで、かつ円相当径が０．１〜０．４μｍの範囲に含
まれる粒子断面の面積の和が、総酸化物断面積の７５％
以上を占めるように酸化物の粒度分布をコントロールし
た。それによって、抵抗負荷およびコイル負荷回路のAST
M電気試験で評価される接点寿命を従来の基準から、さ
らに高めることができた。Specifically, the conditions of the internal oxidation treatment in the contact manufacturing process are appropriately set, and the average of the equivalent circle diameters of the cross-sections of the oxide particles appearing on an arbitrary cross-section of the contact material is 0.1 to 0.2.
The sum of the cross-sectional areas of particles having a diameter of 0.1 μm and an equivalent circle diameter of 0.1 to 0.4 μm is 75% of the total oxide cross-sectional area.
The particle size distribution of the oxide was controlled so as to account for the above. Thereby, AST of resistive load and coil load circuit
The contact life evaluated by the M electrical test could be further increased from the conventional standard.
【００１３】つぎに、酸化物の平均径を０．１μｍ以上
と限定したのは、これ未満では特に耐消耗性が低下し、
微細な酸化物は接点表面の銀同士の接触不良となり、良
好な接触抵抗が得られない。一方平均径０．２μｍを越
えると耐溶着性が著しく劣化する。さらに、円相当径が
０．１〜０．４μｍの範囲に含まれる酸化物断面の面積
の和を耐消耗性、耐溶着性の劣化の観点から、総酸化物
断面積の７５％以上と定めた。Next, the reason why the average diameter of the oxide is limited to 0.1 μm or more is that if the average diameter is less than 0.1 μm, especially the wear resistance is reduced.
The fine oxide results in poor contact between silver on the contact surface, and good contact resistance cannot be obtained. On the other hand, if the average diameter exceeds 0.2 μm, the welding resistance is significantly deteriorated. Further, the sum of the areas of the oxide cross sections whose circle equivalent diameters fall within the range of 0.1 to 0.4 μm is defined as 75% or more of the total oxide cross sectional area from the viewpoint of deterioration of wear resistance and welding resistance. Was.
【００１４】［実施例］つぎに、この発明の銀・酸化物
系電気接点材料を実施例により具体的に説明する。通常
の高周波溶解炉を用い、それぞれ表１、２に示される成
分組成をもったＡｇ合金を溶製し、以下いずれも通常条
件で鋳造、および圧延を施して薄板とし、この薄板を小
片状に切断し、この切断片に対して、酸素雰囲気中酸化
物の粒度を制御しながら内部酸化処理を施し、ついでこ
の内部酸化処理後の切断片をまとめて、これに圧縮成形
を施してビレット状とし、このビレットに押出し、およ
び伸線加工を施して直径：２ｍｍの線材とし、最終的に
この線材からヘッダーマシンにて、頭径：４ｍｍ×頭
厚：１ｍｍ×足径：２ｍｍ×足長：２ｍｍの寸法持った
リベットを形成することにより本発明銀・酸化物系電気
接点１〜１３を製造した。また、通常の条件、すなわち
酸素雰囲気中、温度７００℃に２４時間保持の条件で内
部酸化処理を施す点を除いて本発明接点と同様の製造方
法によって、従来の銀・酸化物系電気接点１〜１３を製
造した。[Examples] Next, the silver / oxide-based electrical contact material of the present invention will be specifically described with reference to examples. Using an ordinary high-frequency melting furnace, an Ag alloy having the component composition shown in Tables 1 and 2 was melted, and then cast and rolled under normal conditions to form a thin plate. The cut pieces are subjected to an internal oxidation treatment while controlling the particle size of the oxide in an oxygen atmosphere, and then the cut pieces after the internal oxidation treatment are collectively subjected to compression molding to form billets. The billet is extruded and drawn to obtain a wire having a diameter of 2 mm. Finally, the wire is head-machined: 4 mm × head thickness: 1 mm × foot diameter: 2 mm × foot length: The silver / oxide based electrical contacts 1 to 13 of the present invention were manufactured by forming rivets having a size of 2 mm. A conventional silver / oxide-based electrical contact 1 was produced by the same manufacturing method as that of the contact of the present invention except that the internal oxidation treatment was performed under normal conditions, that is, at a temperature of 700 ° C. for 24 hours in an oxygen atmosphere. ~ 13 were produced.
【００１５】上記製造工程で作製したリベット型接点の
断面を研磨し、走査型電子顕微鏡により１５，０００倍
の反射電子線像写真を撮影した後、コンピュータに写真
データを入力、酸化物粒子の断面を抽出し、コンピュー
タ画像解析ソフトによって酸化物断面サイズの測定およ
びその統計処理を行った。本発明接点および従来接点に
ついて測定した酸化物の面積平均径および円相当径が
０．１〜０．４ｍｍの範囲に含まれる酸化物断面の面積
の和が総酸化物断面に占める割合を表１、２に示す。After polishing the cross section of the rivet-type contact manufactured in the above manufacturing process, taking a 15,000-fold backscattered electron beam photograph with a scanning electron microscope, photographic data is input to a computer, and the cross section of the oxide particles is obtained. The oxide cross-sectional size was measured and statistically processed by computer image analysis software. Table 1 shows the ratio of the sum of the areas of the oxide cross sections included in the range of 0.1 to 0.4 mm in the area average diameter and the equivalent circle diameter of the oxide measured for the contact of the present invention and the conventional contact to the total oxide cross section. 2 is shown.
【００１６】ついで、各種の接点材料についてＡＳＴＭ
電気接点試験機を用い、 直流電圧：１４Ｖ、 定格電流：１０Ａ インダクタンス負荷 通電時間：１秒ＯＮ−９秒ＯＦＦ 接触力：４０ｇ、 解離力：４０ｇ 開閉回数：１００，０００回、 の条件で電気試験を行い、溶着回数と消耗量を測定し、
耐溶着性および耐消耗性を評価した。これらの測定結果
を表１、２に示した。Next, ASTM for various contact materials
Using an electrical contact tester, DC voltage: 14 V, rated current: 10 A, inductance load, energization time: 1 second ON-9 seconds OFF contact force: 40 g, dissociation force: 40 g Number of times of switching: 100,000 times, electrical test And measure the number of weldings and the amount of wear,
The welding resistance and wear resistance were evaluated. Tables 1 and 2 show the measurement results.
【００１７】[0017]
【表１】 [Table 1]
【００１８】[0018]
【表２】 [Table 2]
【００１９】[0019]
【発明の効果】表１、２に示される結果から、本発明接
点材料１〜１３はいずれも比較従来接点材料１〜１３に
比して一段とすぐれた耐溶着性および耐消耗性を示し、
全ての酸化物断面の平均値が０．１〜０．２μｍとなっ
ており、これにより、本発明がすぐれた耐溶着性および
耐消耗性を示すことが明らかである。上述のように本発
明の銀ー酸化物系接点材料は安定してすぐれた耐溶着
性、耐消耗性を具備するため、各種電気電子機器に組込
まれて実用に供した場合、これら電気電子機器の長寿命
化ならびに高性能化に寄与し、また、省エネルギーを目
的としたより多くのスイッチの開閉に対応することで工
業上、環境上有用な特性を有するものである。From the results shown in Tables 1 and 2, all of the contact materials 1 to 13 of the present invention show much higher welding resistance and wear resistance than the comparative conventional contact materials 1 to 13,
The average value of all the oxide cross sections is 0.1 to 0.2 μm, which clearly shows that the present invention exhibits excellent welding resistance and wear resistance. As described above, the silver-oxide based contact material of the present invention has stable and excellent welding resistance and wear resistance. It has industrially and environmentally useful characteristics by contributing to longer service life and higher performance, and by responding to the opening and closing of more switches for the purpose of energy saving.
【００２０】[0020]
【図1】図１は本発明接点断面組織の一実施例をあらわ
す、走査型電子顕微鏡による１５，０００倍の反射電子
線像において、コンピュータ画像処理によって酸化物を
抽出したものである。FIG. 1 shows an example of a contact cross-section structure of the present invention, in which oxides are extracted by computer image processing from a 15,000-fold reflected electron beam image by a scanning electron microscope.
【図２】図2は比較従来接点断面積組織の一実施例をあ
らわす、走査型電子顕微鏡による１５，０００倍の反射
電子線像において、コンピュータ画像処理によって酸化
物を抽出したものである。FIG. 2 shows an example of a comparative contact point cross-sectional structure, in which oxides are extracted by computer image processing from a 15,000-fold reflected electron beam image by a scanning electron microscope.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 原川 俊郎 埼玉県大宮市北袋町一丁目297番地 三菱 マテリアル株式会社総合研究所内 (72)発明者 植村 雄三 静岡県裾野市千福46−１ 株式会社東富士 製作所内 (72)発明者 稲葉 明彦 静岡県裾野市千福46−１ 株式会社東富士 製作所内 (72)発明者 空澤 光将 静岡県裾野市千福46−１ 株式会社東富士 製作所内 (72)発明者 山梨 真嗣 静岡県裾野市千福46−１ 株式会社東富士 製作所内 Ｆターム(参考） 4K020 AA22 AC05 BB31 5G050 AA01 AA11 AA14 AA19 AA29 AA45 AA47 BA05 BA06 CA01 CA05 EA03 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshiro Harakawa 1-297 Kitabukuro-cho, Omiya-shi, Saitama Mitsubishi Materials Research Institute (72) Inventor Yuzo Uemura 46-1 Senfuku, Susono-shi, Shizuoka Prefecture Higashifuji Co., Ltd. Inside the factory (72) Inventor Akihiko Inaba 46-1 Chifuku, Susono-shi, Shizuoka Prefecture Inside Higashifuji Corporation (72) Inventor Mitsumasa Sorazawa 46-1 Chifuku, Susono-shi, Shizuoka prefecture Higashifuji Corporation (72) Invention Person Shinji Yamanashi 46-1 Chifuku, Susono City, Shizuoka Prefecture F-term in Higashifuji Corporation 4K020 AA22 AC05 BB31 5G050 AA01 AA11 AA14 AA19 AA29 AA45 AA47 BA05 BA06 CA01 CA05 EA03
Claims (2)
〜５％、Ｔｅ：０．０５〜０．８％を含有し、残りがＡ
ｇよび不可避不純物からなる組成を有するＡｇ合金に、
内部酸化処理を施してなる電気接点材料で、材料断面の
ＳＥＭ像の画像解析により測定した酸化物断面の円相当
径の平均が０．１〜０．２μｍで、かつ円相当径が０．
１〜０．４μｍの範囲に含まれる酸化物断面の面積の和
が、総酸化物断面積の７５％以上を占めることを特徴と
する、抵抗負荷および誘導負荷における耐溶着性ならび
に耐消耗性にすぐれた銀・酸化物系接点材料。1. Sn: 3 to 9.5% by weight, In: 1 by weight%
-5%, Te: 0.05-0.8%, the balance being A
g and an Ag alloy having a composition consisting of unavoidable impurities,
An electrical contact material that has been subjected to an internal oxidation treatment. The average of the equivalent circle diameter of the oxide cross section measured by image analysis of the SEM image of the material cross section is 0.1 to 0.2 μm, and the equivalent circle diameter is 0.
The sum of the areas of the oxide cross sections included in the range of 1 to 0.4 μm occupies 75% or more of the total oxide cross section, and is characterized by resistance to welding and wear under resistance load and induction load. Excellent silver / oxide contact material.
〜５％、Ｔｅ：０．０５〜０．８％を含有し、さらに、
Ｆｅ、ＮｉおよびＣｏのうちの１種または2種以上：
０．０１〜０．５％を含有し、残りがＡｇよび不可避不
純物からなる組成を有するＡｇ合金に、内部酸化処理を
施してなる電気接点材料で、材料断面のＳＥＭ像の画像
解析により測定した酸化物断面の円相当径の平均が０．
１〜０．２μｍで、かつ円相当径が０．１〜０．４μｍ
の範囲に含まれる酸化物断面の面積の和が、総酸化物断
面積の７５％以上を占めることを特徴とする、抵抗負荷
および誘導負荷における耐溶着性ならびに耐消耗性にす
ぐれた銀・酸化物系接点材料。2. Sn: 3 to 9.5% by weight, In: 1 by weight%
-5%, Te: 0.05-0.8%,
One or more of Fe, Ni and Co:
An electrical contact material obtained by subjecting an internal alloy to an Ag alloy containing 0.01 to 0.5%, with the balance being Ag and inevitable impurities, and measured by image analysis of a SEM image of the material cross section. The average of the circle-equivalent diameters of the oxide cross section is 0.
1 to 0.2 μm, and the equivalent circle diameter is 0.1 to 0.4 μm
Characterized in that the sum of the area of the oxide cross section included in the range occupies 75% or more of the total oxide cross sectional area, the silver / oxidation having excellent welding resistance and wear resistance under resistive load and inductive load. Material contact material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000176327A JP2001355028A (en) | 2000-06-13 | 2000-06-13 | Silver-oxide based contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000176327A JP2001355028A (en) | 2000-06-13 | 2000-06-13 | Silver-oxide based contact material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001355028A true JP2001355028A (en) | 2001-12-25 |
Family
ID=18678061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000176327A Withdrawn JP2001355028A (en) | 2000-06-13 | 2000-06-13 | Silver-oxide based contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001355028A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003063191A1 (en) * | 2002-01-21 | 2003-07-31 | Sumitomo Electric Industries, Ltd. | Electric contact and breaker using the same |
| EP1505164A2 (en) * | 2003-08-08 | 2005-02-09 | Mitsubishi Materials C.M.I. Corporation | Electrical contact having high electrical conductivity made of internally oxidized silver-oxide material for compact electromagnetic relay |
| JP2008127586A (en) * | 2006-11-17 | 2008-06-05 | Sumitomo Light Metal Ind Ltd | Method for producing dispersion strengthened alloy |
-
2000
- 2000-06-13 JP JP2000176327A patent/JP2001355028A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003063191A1 (en) * | 2002-01-21 | 2003-07-31 | Sumitomo Electric Industries, Ltd. | Electric contact and breaker using the same |
| US6974923B2 (en) | 2002-01-21 | 2005-12-13 | Sumitomo Electric Industries, Ltd. | Electric contact and breaker using the same |
| EP1505164A2 (en) * | 2003-08-08 | 2005-02-09 | Mitsubishi Materials C.M.I. Corporation | Electrical contact having high electrical conductivity made of internally oxidized silver-oxide material for compact electromagnetic relay |
| EP1505164A3 (en) * | 2003-08-08 | 2006-06-07 | Mitsubishi Materials C.M.I. Corporation | Electrical contact having high electrical conductivity made of internally oxidized silver-oxide material for compact electromagnetic relay |
| US8187395B2 (en) | 2003-08-08 | 2012-05-29 | Mitsubishi Materials C.M.I. Corporation | Electrical contact having high electrical conductivity made of internally oxidized silver-oxide material for compact electromagnetic relay |
| JP2008127586A (en) * | 2006-11-17 | 2008-06-05 | Sumitomo Light Metal Ind Ltd | Method for producing dispersion strengthened alloy |
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