JPS5981816A - Contact material for vacuum breaker - Google Patents

Contact material for vacuum breaker

Info

Publication number
JPS5981816A
JPS5981816A JP19278582A JP19278582A JPS5981816A JP S5981816 A JPS5981816 A JP S5981816A JP 19278582 A JP19278582 A JP 19278582A JP 19278582 A JP19278582 A JP 19278582A JP S5981816 A JPS5981816 A JP S5981816A
Authority
JP
Japan
Prior art keywords
alloy
contact material
weight
contact
performance
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
Application number
JP19278582A
Other languages
Japanese (ja)
Other versions
JPS6336089B2 (en
Inventor
奥村 光弘
納谷 榮造
出水 通之輔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP19278582A priority Critical patent/JPS5981816A/en
Priority to US06/547,218 priority patent/US4517033A/en
Priority to EP83110920A priority patent/EP0110176B1/en
Priority to DE8383110920T priority patent/DE3378088D1/en
Publication of JPS5981816A publication Critical patent/JPS5981816A/en
Publication of JPS6336089B2 publication Critical patent/JPS6336089B2/ja
Granted legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 この発明は、大電流しゃ断時性に優れ、かつ高耐圧性能
を有する真空しゃ断器用接点材料に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a contact material for a vacuum breaker that is excellent in large current interruption properties and has high withstand voltage performance.

真空しゃ断器は、その無1呆守、無公害性、優れ几しゃ
断性能等の利点を持つため、適用範囲、が急速に拡大し
て来ている6 ’! fCsそれに伴い、より高耐圧化
、大電流しゃ所出の要求がきびしくなって来ている。一
方、真空しゃ断器の性能は真空容器内の接点材料によっ
て決定される要素がきわめて大である。
Vacuum circuit breakers have advantages such as zero protection, non-pollution, and excellent breaker performance, so the scope of application is rapidly expanding6'! fCs Along with this, demands for higher voltage resistance and larger current shielding capabilities are becoming more severe. On the other hand, the performance of a vacuum breaker is determined to a large extent by the contact material inside the vacuum container.

真空しやu7r器用接点材料の満足すべき特性として、
【】1しゃ断容嘴′が大きいこと、(2)耐電圧が高い
こと、(3)接触抵抗が小さいこと、(4)溶着力が小
さいこ吉、(5r接点消耗mが小さいこと、+61さい
断電流値が小さいこと、+71加工性が良いこと、(8
1十分な機械的強IJ ?有すること、等がある。
The satisfactory characteristics of the contact material for vacuum shield U7R device are as follows:
[]1 Large breaking beak, (2) High withstand voltage, (3) Low contact resistance, (4) Small welding force, (5r contact wear m is small, +61 Small cut-off current value, +71 good workability, (8
1. Sufficient mechanical strength IJ? There are things like having, etc.

寿際の接点(オ料では、これらの特性を全て満足させる
ことは、かなり困難であって、一般Vcll−1:用途
に応じて特に重要な特性fti足させ、イ[口の特性を
ある程度犠牲にした材料全使用しているのが実状である
It is quite difficult to satisfy all of these characteristics at the contact point at the edge of life. The reality is that all the materials used are used.

従来、この種の接点材料として銅−ビスマス(以下0+
1−Bj、と表示する。他の元素および元素のイ11み
合せからなる合金についても同様に元素記号で表示する
。)、Ou −0r−J31 、0u−Co −Bj、
 、 0u−Or等が使用されていた。しかし、Cu−
Bj等の低融点金属を含有する合金接点では排気工程中
の高温加熱により、その一部が接点内から拡散、蒸発し
、真空容器内の金属シールドや絶縁容器に付着する。
Conventionally, copper-bismuth (hereinafter referred to as 0+
1-Bj, is displayed. Other elements and alloys consisting of 11 combinations of elements are similarly indicated by element symbols. ), Ou-0r-J31, Ou-Co-Bj,
, 0u-Or, etc. were used. However, Cu-
In an alloy contact containing a low melting point metal such as Bj, a portion of the contact diffuses and evaporates from within the contact due to high temperature heating during the evacuation process, and adheres to the metal shield or insulating container in the vacuum container.

こ1Lが真空しゃ断器の耐電圧を劣化させる大きな因子
のひとつになっている。廿た、負荷開閉や人?(曵流し
ゃ断時にも低融点金属のk(発、飛散が生じて耐電圧の
劣化、しゃ断性能の低下が見られる。
This 1L is one of the major factors that deteriorate the withstand voltage of the vacuum breaker. Also, load switching and people? (Even during flooding and shutoff, low melting point metals are emitted and scattered, resulting in deterioration of withstand voltage and deterioration of shutoff performance.

上記の欠点を除くために′真空耐11(圧に優れたCr
In order to eliminate the above drawbacks, 'Vacuum resistance 11 (Cr with excellent pressure resistance)
.

COなどを添加した0u−Or−Biなどにおいても、
低融点金属による上記の欠点は根本的に197N決され
ず、高電圧、大電流には対応できない。一方、Cu−0
rなどのように真空耐電圧に優れt金1.螺(0’r、
 Coなと)とnf気伝導/i K優れflcuとの組
み会ぜからなる材料は耐溶着性能に関しては低融点金属
を含有する接点材料に比較して、−やや劣るが、しゃ断
性能や耐重圧性能が優れているたぬ、高電圧、大小流域
ではよく使用されている。さらに、Co、−Cr合金な
どVCおいても、しゃ断性能[H限界が、らろために、
接点の形状を工夫し、接点f′Aりの電ya経路を操作
することで、磁場を発生さぜ、この力て友゛屯流−アー
クを強制!11<動して、しセ1オJr性能を上げ7)
努力がなされていた。
Even in 0u-Or-Bi etc. with addition of CO etc.
The above-mentioned drawbacks caused by low melting point metals are fundamentally unresolved, and 197N cannot cope with high voltages and large currents. On the other hand, Cu-0
t gold with excellent vacuum withstand voltage, such as r. screw (0'r,
Materials consisting of a combination of Co (co) and nf air conductivity/i K excellent flcu are slightly inferior in terms of welding resistance compared to contact materials containing low melting point metals, but have good breaking performance and heavy pressure resistance. It has excellent performance and is often used in high voltage, large and small basins. Furthermore, even in VC such as Co and -Cr alloys, the breaking performance [H limit] is
By devising the shape of the contact and manipulating the electric path around contact f'A, we can generate a magnetic field and use this force to force a friend current to form an arc! 11<Move and increase Shise 1 O Jr performance 7)
Efforts were being made.

1、かじ、高γl′c圧化、大小流化−・の要求げさら
Vこきびしく、従来の晰点材別では要求性能を十分溝1
dさ仕ることが困難となっている。又、真空しゃ+Of
器の小型化に対しても同様に従来の接点性能では十分で
なく、より優れた性能を持っ接点材料が求めら′11.
ていた。
1. The demands for high γl'c pressure, large and small flow rates are severe, and conventional clear point materials cannot meet the required performance sufficiently.
d It is difficult to serve. Also, vacuum +Of
Similarly, conventional contact performance is not sufficient for miniaturization of devices, and there is a need for contact materials with better performance.'11.
was.

この発明は上記のような従来のものの欠点を除去するた
めになされたもので、大電流しゃ順特性に優れ、かつ高
耐電圧性能を有するμ空(−や断器用接点材料を提供す
ることを目的としている。
This invention was made in order to eliminate the drawbacks of the conventional products as described above, and aims to provide a contact material for μ air (-) and disconnectors that has excellent large current breaking characteristics and high withstand voltage performance. The purpose is

我々はOuに棹々の金rig +合金、金1萬間化合物
を箭U1]シた接点材料を試作し、α空しやl#i器に
組み込んで■・17々の実験ケ行なった。この結果、C
u。
We fabricated a prototype contact material in which a typical gold rig + alloy and a gold compound were added to Ou, and incorporated it into an α-air and l#i device, and conducted the experiments described in (1) and 17. As a result, C
u.

Or、及びTaが、各々小体金属、三者もしくけ王者の
合金、三者もしくけ王者の金属間化合物、又はそれらの
複合体として分布している接点材料は非常にしゃ断性能
が優れていることがわかった。
Contact materials in which Or and Ta are distributed as small metals, three-way metal alloys, three-way metal intermetallic compounds, or composites thereof have extremely excellent breaking performance. I understand.

この発明による具空しゃ断器用接点材料は、Ouを含有
すると共に、他の成分としてOrが35市縦%以−ド及
びTaが50市縦%以下で、crとTaの合n1°が1
0 J 清%以上の範囲含有する、Ou、Cr及びTa
が、各々単体金属、王者もしくは王者の合金。
The contact material for a hollow circuit breaker according to the present invention contains O, and other components include Or of 35% or more and Ta of 50% or less, and the sum of cr and Ta is 1°.
Ou, Cr and Ta containing 0 J clear% or more
However, each is a single metal, a king, or a king's alloy.

王者もしくは王者の金属間化合物、又けそシフらのf#
吟体さして分布していることを特徴としている。
The king or the king of intermetallic compounds, also f# of Schiff et al.
It is characterized by being widely distributed.

以下、この発明の一実施例を図について説明する。An embodiment of the present invention will be described below with reference to the drawings.

第1図は真空スイッチ管の(n造図で、(11真空絶縁
容器、nij記具9.4 R(、縁容器(1)の両端を
閉塞する端板(2)および(3)表により形成された芥
器内部に電極(4)および(5)が、それぞれ電極事N
(6)および(71の一一喘Vこ、お互いが対向するよ
う配置されている。前記?lf極(71け、ベローズf
81を介してnor記痛板(3]に気密折”4′11う
ことなく軸方向の動作が可能なように接合されている。
Figure 1 is a diagram of the vacuum switch tube (11 vacuum insulated container, nij mark 9.4 R), end plate (2) closing both ends of the edge container (1) and (3) according to the table. Electrodes (4) and (5) are placed inside the formed waste container, respectively.
(6) and (71) are arranged so as to face each other.The ?lf pole (71, bellows
It is joined to the orifice plate (3) through a joint 81 so as to be able to move in the axial direction without any airtight folding.

シールド(91および叫がアーク(・でより発生する蒸
気ヤ汚染されることプバないよう、そ/7゜そi1前記
汽空絶縁容器(11の内面および111■記べo−ズ(
81を覆っている。電極(4)および(5)の構成を第
2図に示す。Mi極(51けその背面で’ilt極捧(
7)にろう材f511 ’Th介挿してろう付されてい
る。jiiJ記(fi極(4) 、 +5+ケまこの発
明に係るcu−Or−Ta系接点材料から成っている。
In order to prevent the shield (91 and
It covers 81. The structure of electrodes (4) and (5) is shown in FIG. Mi Goku ('ilt Goku dedicated on the back of 51 Kesono)
7) is brazed with a brazing material f511'Th inserted. jiiJ (fi pole (4), +5+) is made of the cu-Or-Ta based contact material according to this invention.

第3図シま比較例として従来の(コυ−cr合金接点材
料の倍率が1coの金属組織写真% f fii: ゛
す。これはCu粉とCr粉をそれぞれ゛15屯1%係、
25重量係で混合、成形し′焼結して得られたCu−0
r合金である。
Figure 3 is a comparative example of a metallographic photograph of a conventional (Coυ-Cr alloy contact material) with a magnification of 1co.
Cu-0 obtained by mixing, molding and sintering at 25 weight ratio
r alloy.

2434図はこの兄明の一寿施例と[7てC1ニー0r
−Ta合金接点イ゛(叫の倍寮が」00の金属組織写真
をボす。
Figure 2434 shows this brother Akira's Ichiju example and [7te C1 knee 0r
- Photograph of the metal structure of the Ta alloy contact point 2 (Screaming Double Dormitory) 00.

こ〕]5ば0uJ)とOr、0)の配e を’&々’r
5 市R% 、 25車ti俤と1.、、、、 fc混
合粉;K K Ta ’i 10 f ;ft %加え
たものを混合、成形、焼結し−こイ4fられft−Cu
−Cr−Ta合金である。なお、焼結は1100°C程
度で行ない、CrおよびTaの一部が反応してcr2’
ra全2’raる条件上した。
]5ba0uJ) and Or, the distribution e of 0) is '&...'r
5 city R%, 25 cars ti 俤 and 1. ,,,, fc mixed powder; K K Ta 'i 10 f ; ft % was mixed, molded, and sintered.
-Cr-Ta alloy. Note that sintering is performed at about 1100°C, and part of Cr and Ta reacts to form cr2'
All 2'ra conditions were met.

第5図はこの発明の(llJの実施例としてC1λ−C
!r−Ta合金′fY−CrとI’aが合金あるいは金
属間化合物全形成し難い程IWの比軟的低温で焼結し之
場合の倍率が100の金属組織写真紮示す。こ才1は、
第4図に示した実施例と同一の配合比からなるCu−C
r −’ra71L合粉末を成形、焼結してイ々lられ
る合金である。
FIG. 5 shows C1λ-C as an example of (llJ) of this invention.
! A photograph of the metallographic structure at a magnification of 100 is shown in which the r-Ta alloy'fY-Cr and I'a are sintered at a relatively soft temperature of IW so that it is difficult to form an alloy or an intermetallic compound. Kosai 1 is
Cu-C with the same blending ratio as the example shown in Figure 4
This is an alloy made by molding and sintering r-'ra71L composite powder.

第4図の合金HCu中VCOr、 Ta、 (:ryT
aが均一微細に分布していることがわかる。また、第5
1/1の合金にCu中にOr、 Ta力輩L、シして中
体金1萬で分布し、Cr2Ta ((f:、は七んど見
られない。
VCOr, Ta, (:ryT
It can be seen that a is uniformly and finely distributed. Also, the fifth
In the 1/1 alloy, Or, Ta and Ta are distributed in Cu, and 10,000 of gold is distributed in the middle, and Cr2Ta ((f:) is rarely seen.

以下にvh hの測定あるいは試h’fi k j’l
なつノ4結−ちについて説明する。
Below is the measurement or test of vh h'fi k j'l
I will explain the Natsuno 4 knot.

捷ず、戎/ンの% I!Iqの結果から、Cu 、 C
r ′7)、l’l Jrx絵金からなる接点合金でf
j;、 Or tfが20− 、’SOtl(+i係の
荀囲で各finの性能が非′、竹に優ハて友へり)こ、
l−4・+ha認しているので、第6I閃〜2れ9図(
て?イ0ろ接・!5材料中のOuとOrの市喰比ケ常に
一定(’;’5:251.4=し、これに添加ゴーるT
a量を神々変化させ之場自゛の合金の1渚特性の変化に
ついて示す。
% I! From the Iq results, Cu, C
r '7), l'l Jrx contact alloy consisting of picture metal f
j;, Or tf is 20-, 'SOtl (the performance of each fin is not good in the +i section, it is better than bamboo),
1-4・+ha is recognized, so the 6th flash - 2nd 9th figure (
hand? I0ro contact! The ratio of Ou and Or in the 5 materials is always constant (';'5:251.4=, and the amount of T added to this is
We will show the changes in the properties of the in-situ alloy by changing the amount of a.

第6図は合金中のCuとOrの市晴比率を75”′:)
、5に固定したものに添jJlj したTa量と′「(
i気伝導+11′ぴ〕関係を示しtものであり、Tag
の増加−1:、q−も1r屯気伝導ザが低下しているが
、合金中の(、’! u、 、l−Cr(7) ilj
 ffl比率’fr−75:25 K固定し7j ”A
h i’4、Ta、 +61qt 「1的により使用可
能であるが、特1’C’、5011t醋・#2.憫叶捷
でが望ましい。
Figure 6 shows the Ichiharu ratio of Cu and Or in the alloy, 75'':)
, the amount of Ta added to that fixed at 5 and ′
i air conduction + 11' p].
-1: , q- also decreases 1r ton air conduction, but (,'! u, , l-Cr(7) ilj
ffl ratio 'fr-75:25K fixed 7j''A
h i'4, Ta, +61qt "It is more usable in 1, but it is preferable to use 1'C', 5011t, #2.

なお、g 6図の1Rie l1NIij cu−25
(!r +7) i”lイ′、Qt fie 斗rgc
 工1としt、#−3合の比率、横軸は’−f’a j
イ9111じ[忙1−りす。
In addition, 1Rie l1NIij cu-25 in g6 figure
(!r +7) i”lii′, Qt fie dou rgc
Ratio of work 1 and t, #-3 go, horizontal axis is '-f'a j
I9111ji [busy 1-squirrel]

第7図tfi合金中のCdとCrのit<扇14.率を
・青東↓す・に固定したものに添加17たTa員と接触
抵抗の関係を示したもので、電気伝導度上同様の傾向ケ
示す。なお、第7図の縦軸は、従来品aの0u−25市
量チOr合金の4曲を1とした比率ケ示す◎第8図tよ
合金中のCuとOrの虫1畦比率を75 : 25に固
定しtもの1・C添加したTa竜としゃ断音−一の関係
ケ示しており、Ta ?r添加したものは従来品(0u
−25tlj fit% Cr合金)に比較(−で著し
くしゃ断性能が上昇し、ていることがわかる。
Fig. 7 It<Fan 14. of Cd and Cr in TFI alloy. This figure shows the relationship between the contact resistance and the added Ta member when the ratio is fixed at ・Aoto↓su・, and shows the same tendency in terms of electrical conductivity. In addition, the vertical axis in Figure 7 shows the ratio with 4 pieces of 0u-25 commercially available Chi-Or alloy of conventional product a as 1. ◎ Figure 8 t shows the ratio of Cu and Or in the alloy. 75: It shows that there is a relationship between Ta and 1.C added to 1.75:25, and Ta? The product with r added is the conventional product (0u
-25tlj fit% Cr alloy).

なお、嘱8図の縦軸は従来品aのCu−25東11J′
係Or今金の4rljをユよした比率ケ示す。第8図か
ら明らかなよう[Ta添加最の増加とともに、しゃ断各
1計は増加し、10重f4チTaでは従来品の1.7倍
に達し、Taが15市!を係程度でピークを示し、それ
以−LTa金加えると逆にじゃ1仇容IAの低下が生じ
る。即ら、′1゛aとOx−が共拝して、その相カ作用
により、しやIJT叶能を上ゼさせるが、あるla r
奪以上Ta (!: Cr金1i11加させると汁金中
において、良導゛市外のCuが減少して合金の電気伝導
度や熱伝導度が低下し、アークによる熱人力をすみ萱か
に放散するこ吉が困帷になり、逆にしシ1−tlli律
能ケ11.”くさけ゛る之めである。
In addition, the vertical axis of Figure 8 is Cu-25 East 11J' of conventional product a.
Shows the ratio of the 4rlj of Kaoru or Imakane. As is clear from Fig. 8, as the Ta addition increases, the total amount of cut-off increases, reaching 1.7 times that of the conventional product for the 10-weight f4-chi Ta, and 15 Ta! It shows a peak at a certain level, and if -LTa gold is added beyond that point, the IA decreases by 1. That is, '1゛a and Ox- worship together, and their interaction increases the power of IJT, but there is a certain la r
Ta(!): Adding 1i11 of Cr gold reduces the amount of Cu outside the area, which is a good conductor, and lowers the electrical conductivity and thermal conductivity of the alloy, making it difficult to absorb the heat generated by the arc. Kokichi, who is dissipating, becomes troubled, and on the contrary, he starts to scream.

第91×1は同様にTa添加屓七削t1(用件1七の1
51白糸を;1〈スものであ5゜図から明らかな上うに
1□j1. ’Mが5屯;#、 % H”Fでtit従
来品a (Cu−25if(’id ’fy r:r合
金ンと差がわずかであるが、155(ノ/II +=、
#がノIV /J1.I −1−#1は、Ta 774
≦」■汀の」曽l用とともに耐・11圧・1生1′七の
上層。
No. 91
51 White thread; 'M is 5 tons;
#ganoIV/J1. I-1-#1 is Ta 774
≦ `` ■ Seaside '' Sol use and the upper layer of resistance, 11 pressure, 1 life 1'7.

が11!、ら4シる。−1投的にはOrとTa  の合
計の市ルーdチが増1ノ11すiLは、附電圧性能が同
一[二#7h llJl回1・′じ←、る。
is 11! , et al. - In terms of input, the total city loop of Or and Ta increases.

lつ(p′c台金中(7) Ta p f 30m+r
t % #て固定1.2<’Tイ1.HH)のOuに対
するOrの4(量比率をベタ化させ5λ舅合・′り合金
の特性の変化についで示″1″。
1 (p'c base metal medium (7) Ta p f 30m+r
t % #tefixed1.2<'Ti1. HH) shows the change in properties of the alloy when the ratio of Or to O is made constant by increasing the ratio of Or to O.

車コ0図はCu&こ対するCrの市寸比1−とH,気!
ん。
The car's 0 diagram shows the city size ratio of Cr to Cu & 1- and H, mind!
yeah.

導μCの1jJJ係を示’tつ 次に?’F ’he甲のTa:3加+i k O,−L
、 3. :)、 /、 j−(、)。
Next, show the 1jJJ section of μC? 'F'he Ta of the instep: 3 addition + i k O, -L
, 3. :), /, j−(,).

、1.5.30.4す、 5(1,(io市ifチで各
々固定とし、3合金でのCu(tで対するcrの市hi
: 1.i5平り・〆り化を一部た場合のし−やrtl
i性能々Cr +、i、 量比率の関係6てつぃ−で4
11図に示す。なお、縦tl’+hけイ菫来情a(+和
−]ゲ・市敏係Or合金)の値を1とじt比率を示し、
横軸ViCuに対するCrの@端比率を示す。図かられ
かるように、従来品aのCu−Cr二元合金ではCr愉
が20〜30屯垣チの範囲にしゃ断容量のピークかあり
、Tn J1全1〜15 +lj針q6に固定した場合
も同様の傾向がある。また、Ta +11を15重1?
F%に固定した場合には、C1−の重(■比率がOuに
対して10重紺%程1#°(接点材料全体に対しでは8
.5屯指チ)からCulて対(〜て25重itチ程度(
接点材料全体に苅しては21,3市I硅チ)まで著しい
しゃ断性能の上昇かり、られる。一方、Ta、 liを
:50市科(%に固定した場合にはしゃ断容量のピーク
にCrの重11比率が10〜20償州チ(接点材料全体
に対しては7〜14.中、:砕%)・ン)範1川(てあ
り、そのビークイ直に1゛a曖が15 徂lTt乃の合
金よりやや劣る。
, 1.5.30.4, 5 (1, (io city if hi respectively fixed, Cu in 3 alloys (t in cr city hi
: 1. What happens when i5 flattening/closing is done partially
i performance Cr +, i, relationship between quantity ratio 6 Ttsui - and 4
It is shown in Figure 11. In addition, the value of the vertical tl' + hkeyi Sumiraijo a (+ sum -] Ge・Ichi Toshiki Or alloy) is set to 1 and the t ratio is shown,
The horizontal axis shows the @ end ratio of Cr to ViCu. As can be seen from the figure, in the Cu-Cr binary alloy of conventional product a, the peak of the breaking capacity is in the range of Cr 20 to 30, and when fixed at Tn J1 total 1 to 15 + lj needle q6 There is a similar tendency. Also, Ta +11 is 15 times 1?
When fixed at F%, the weight of C1- (■ ratio is about 10% to Ou, 1#° (8% to the entire contact material)
.. From 5 tons) to 25 layers (about 25 layers)
If the entire contact material is coated, the breaking performance will significantly increase to 21.3 mm. On the other hand, when Ta and Li are fixed at 50% (%), the peak of the breaking capacity occurs when the Cr weight 11 ratio is 10 to 20 Baozhou Chi (7 to 14% for the entire contact material). %)・n) Han 1 River (Teari), its beak directly 1゛a vagueness is slightly inferior to the alloy of 15 degrees lTtno.

第12図はCu l Taの二元合金において、Ta 
@と電気伝導度の関係を示し、阿13図はCuとOrの
二元汗金において0rfiと電気伝導度の関係を示す。
Figure 12 shows a binary alloy of Cu l Ta.
Figure A13 shows the relationship between 0rfi and electrical conductivity in binary gold of Cu and Or.

両図からTa、Orの各々が増加するに従いFIJ気伝
導1隼が低下し、Taでは50重晴係程度で、オたOr
では40 lj 4f %で一般にしゃ曲用接点として
要求さ!する電気伝導度の限界に達し、それ以上Ta、
 Orを増加させると通電、シやlfrなどから実用上
悪影響を及ぼす。また、第]−1図から明らかなように
、Taと共存する場合は接点材料全体に対してCr瞬が
J5@彎%以下の範囲でしやjυを性能の改善が見られ
、それ以上Cr敗を増/Jil t、ても効用が得られ
ない。一方、Ta[戊1しては、crとの共存によって
少量の添加でもしゃ断性能の改善が卵らI7、Ta所が
50市喰チ以下で一% I’14的である。なお、Te
t待は50重量%以上でも、しゃ断性能からみて有効な
範囲があると思わ!tろが、まず、製造上、通常の焼結
法では得難いこと、次に第12図から明らかなように5
0重吋係Ta以−ヒTけ・17気伝導度が低く、接触抵
抗な七′も上昇し、特殊1」4途以外のしゃ1所器には
実用化が雉しいう さらに、第11図から、従来品に比紋して、しゃ断性能
が著しく (1,5倍を超える)向上する範囲上して、
Ta P#が5〜30市tけ係、CrhjがOuK対し
て8〜33市量チ、すなわち接点イ・イネ・I全体に対
して880.7−5〜33X0.9′=+30重債チが
望ましい。
From both figures, as Ta and Or increase, FIJ air conduction 1 Hayabusa decreases.
So, 40lj 4f% is generally required as a bending contact! Ta,
Increasing Or will have an adverse effect in practice due to energization, shi, lfr, etc. Furthermore, as is clear from Fig. 1, when Ta coexists with Ta, the performance is improved in the range where the Cr instantaneous value is less than J5%, and beyond that, when Cr coexists with Ta, Even if you increase your losses, you will not get any benefit. On the other hand, Ta [1] improves the blocking performance even with the addition of a small amount due to its coexistence with Cr. In addition, Te
I think there is an effective range for t-waiting, even if it is 50% by weight or more, in terms of cutting performance! First of all, it is difficult to obtain 50% by the normal sintering method due to manufacturing reasons, and secondly, as is clear from Figure 12,
In addition, the air conductivity is low and the contact resistance is high, making it difficult to put it to practical use in any one-place device other than the special 1. From the figure, it can be seen that the breaking performance is significantly improved (more than 1.5 times) compared to the conventional product.
Ta P# is 5 to 30 points, Crhj is 8 to 33 points to OuK, that is, 880.7-5 to 33 is desirable.

さらに、H(r、11図から接点材料全体に対するOr
とTaの合計が10重耐−以上で効果があり、それより
少なくなるとしゃ断性能は向上しなかっtoさらに、第
11図から逆に接点材料全体に対するOrとTaの合計
がだんだん多くなると製造が内錐になり、65tlxM
係以上になると製造方法にもよるが充分なしゃ断性能が
期待できなくなる。
Furthermore, H(r, from Figure 11, Or for the entire contact material
It is effective when the sum of Or and Ta exceeds 10 loads, and when it is less than that, the breaking performance does not improve.Furthermore, as shown in Figure 11, conversely, as the sum of Or and Ta for the entire contact material gradually increases, the manufacturing process becomes more efficient. Becomes a cone, 65tlxM
If the temperature exceeds 100 mm, sufficient breaking performance cannot be expected, although it depends on the manufacturing method.

なお、前記第6図〜第11図の実験例で1dorとTa
からなる金属間化合物、即ち、0r2Ta ?:影形成
ており、Cu中にOr、 TaおよびC!r2Taが均
一微細に分布した合金の緒特性について示したが、焼結
温度を低くし、C!u、 Or、 Taがほとんど単体
として分布している合金においても、はは同様の傾向全
示し、従来の0u−25重量%Or合金に比較して著し
く大きなしゃ断性能を有する。しかし、同一の配合で混
合、成形、焼結されたCu−0r−Ta合金ではOr、
’I’aの金属間化合物を形成しているものの方がしゃ
断性能に優れていることがわかった。
In addition, in the experimental examples shown in FIGS. 6 to 11, 1dor and Ta
An intermetallic compound consisting of 0r2Ta? : Shadow formation, Or, Ta and C in Cu! We have shown the initial properties of an alloy in which r2Ta is uniformly and finely distributed, but when the sintering temperature is lowered, C! Alloys in which u, Or, and Ta are distributed almost as single substances also exhibit a similar tendency, and have a significantly greater breaking performance than the conventional 0u-25% by weight Or alloy. However, in the Cu-0r-Ta alloy mixed, molded and sintered with the same composition, Or,
It was found that those forming an intermetallic compound 'I'a had better interrupting performance.

また、図示しないが、上記合金にBi、Tet sb。Although not shown, Bi and Tetsb are added to the above alloy.

Tl、 Pb、 s=、 Oe及びOaの低融点金1瓜
、それらの合金、並びにそtlらの金属間化合物のうち
少なくとも1種以上を20−%以下添加した低さい断班
空しや1σ1滞用依点においても、[)II記実験例と
同様にじゃ曲性能や耐電圧性能を上昇させる効果がある
こと? (f(K 、Qtしている。
Low melting point gold 1σ1 of Tl, Pb, s=, Oe and Oa, their alloys, and at least 20% of at least one of these intermetallic compounds added. Even at the depletion point, does it have the effect of increasing the bending performance and withstand voltage performance as in the experimental example described in [2]? (f(K, Qt.

な伯、低融点全屈、そflらの合金、並びにそれらの金
属間化合物のうち少なくとも]種以上を20重In係以
上添加した場合には著しく、しゃ断性能が低下した。又
、低蘭点金属がCeあるいはCaの場合は、若干特性が
落ちto 以上のように、この発明によれは、銅を含有中ると共に
、他の成分としてクロムが35重り目」下及びタンタル
が50市量チ以トーで、クロノ、とタンタルの合計が1
0重階係以上の範囲含有するこ、!:を特徴とするもの
であるので、しゃ断性能に優れ、かつ12.高耐屯圧性
能を有する貞空しやlIJ「器用接点材料が得られる効
果がある。
When at least one of these alloys, low melting point alloys, and their intermetallic compounds were added in an amount of 20 times In or more, the breaking performance was significantly reduced. In addition, when the low point metal is Ce or Ca, the properties are slightly degraded. is 50 units, and the total of chrono and tantalum is 1
Contains a range of 0 layers or more! 12. It has excellent shutoff performance and 12. It has the effect of providing a dexterous contact material with high pressure resistance.

【図面の簡単な説明】[Brief explanation of the drawing]

第11g+はこの発明の一4施例k Jl宿用する真空
スインチ管の47j¥造ゲ示す萌面図、第2図はイの第
コー図のilK極部分の拡大+17’i面図でイ)る。 第3図は焼結法により製造した従老のCu−25N¥!
け%Or接点合金の100倍の金j萬組織写奥、第4図
は、)(+渦で焼結したこの発明の一実施例によるCu
 −25tli t4qI)Crの母合金KTaケ10
市量チ添加した接点合金の1()0倍の金1萬11t禮
写真、第5図はこの発明のfatの実施例による低温で
焼結し7j @4図と同様のv1己合を持つ接点合金の
100倍の金属組織写真、第6図はこの発明の接点材料
にお4ノるCuに対するCrのit量比率を’15:2
5vc固定した合金に対してTa添IJ111マ(全変
化させた時の電気伝導度の変化を示十特性図、第7図は
この発明の接点材料におけるOuに対するCrの市)踵
比率を75:25に固定した合金に対してTa添添加全
全変化せた時の接触机抗の変化を示す特性図、第8図u
二この発明の接点材(−[(ておける0ulC対するO
rの市域比率を’75:25に固定した合金に対してT
8添IJII L’(−!I−q化させた時のし7や断
音…の変化ンー示す特性図、第9図はこの発明の接点材
料におりるCu[対−UるCrの市(1!′比率を75
=25に固定し之合金Qて対してTa添加t11(化さ
随た時のu市(LE性能の変化を示す特性図、第’J−
OI:;<jはこの発明の接点材料にお(・Jる合金中
のTal袴香・30 +4j i+、 % +で固定し
た場合のCuに対するCY鴫′パ) +ti爪比率金歌
化させた時のC10,気体・4度の斐什、をづ[ζ寸時
Vト図、第11図C」この発明の接点柑ql +でおけ
るTa ’IfCk O,,1,、3,5,7,10,
15,30,4(J、 5t+、 60市川チに各々固
定した場合のCUに対1゛ムOrの1■h1比率を変化
させた合金のしゃ断容惜の4シ化ケ承す特性図、第12
図は参考に示し、Cu〜T8二元合金においてTavと
電気伝導度の関係を示1−特11↓図、第125図は参
考に示し、0u−Cr二元合金にオ;いてOr kjと
電気伝導度の関係を示す特性図である。 (1)・・・真空絶縁容器、(2+ 、 (3)・・端
板、(41、(5+  ↑1イ。 極、161 、 +7;・・・電極棒、+81・・・ベ
ローズ、(9)、叫・・・−ルド、61)・・・ろう材 なお、図中同一符号は各々同−又は相当部分を示す。 代理人  葛 野 信 − 第1−図 第211 第:3図 第J図 第5図 つ 第U i’4 一7’a 流力171(岨 童、r、 )第71・1 1硫奈卯予(鉦1%゛) 第>う口 7グシ〕イン〃119ト(杓! 4シ1()第≦) 1
lI T01帝2) 第1014 Carこ村すQCl−の午I歩比C欽導−/K)第13
.1m こ613寸−4−白 crの奄1」比 (車中5も)第
1>2図 乃浸卯童峰−1わ
No. 11g+ is a front view showing the 47j construction of a vacuum switch tube for use in one of the fourteenth embodiments of this invention. ). Figure 3 shows the sintered Cu-25N¥ produced by the sintering method!
Fig. 4 is a photograph of the gold structure 100 times larger than that of the contact alloy.
-25tli t4qI) Cr mother alloy KTa ke 10
A photograph of 10,000,11t gold of a commercially available contact alloy with 1()0 times the amount of gold, Fig. 5 shows a contact alloy sintered at a low temperature according to an embodiment of the present invention with v1 self-assembly similar to Fig. 7j @4. Fig. 6 is a photograph of the metallographic structure of the contact alloy at a magnification of 100 times.
For the alloy with a fixed 5vc, Ta-added IJ111 alloy (characteristic diagram showing the change in electrical conductivity when changing the total, Figure 7 shows the ratio of Cr to O in the contact material of this invention) was set to 75: Characteristic diagram showing the change in contact mechanism when the Ta addition is completely changed for the alloy fixed at No. 25, Figure 8 u
2 Contact material of this invention (-[(O for 0ulC in
T for the alloy with the city area ratio of r fixed at '75:25.
Figure 9 shows the characteristics of Cu [vs. Cr in the contact material of this invention]. (1!' ratio is 75
= 25 for alloy Q when Ta addition t11 (Characteristic diagram showing changes in LE performance, No. 'J-
OI:; At C10, when gas is 4 degrees, Ta 'If Ck O,,1,,3,5,7 ,10,
15, 30, 4 (J, 5t+, 60 Ichikawa Chi) Characteristic diagram of alloys with varying 1 h1 ratio of 1 mm Or to CU, which accepts 4-silicon transformation of CU, 12th
The figure is shown for reference and shows the relationship between Tav and electrical conductivity in the Cu-T8 binary alloy. FIG. 3 is a characteristic diagram showing the relationship between electrical conductivity. (1)...Vacuum insulation container, (2+, (3)...End plate, (41, (5+ ↑1a). Pole, 161, +7;...Electrode rod, +81...Bellows, (9 ), shout...-rudo, 61)...brazing filler metal The same reference numerals in the figures indicate the same or corresponding parts. Agent Shin Kuzuno - Figure 1-Figure 211 Figure 3-J Figure 5 U i'4 17'a Fluid power 171 (Kado, r, ) No. 71.1 1 Suna Uyo (1%゛) No. 7 Uchi 119 (Ladle! 4shi1()<=) 1
lI T01 Emperor 2) No. 1014 Car Komura QCl- no I Ayuto C Kindo-/K) No. 13
.. 1m 613 cm - 4 - White Cr's 1" ratio (5 in the car too) 1>2 Figure no Izubu Domine - 1

Claims (1)

【特許請求の範囲】 (11銅を含有すると共に、他の成分としてクロムが3
5重量%以下及びタンタルが50重量%以下で、クロム
とタンタルの合計が10重量%以上の範囲含有すること
を特徴とする真空しゃ断器用接点材料。 (2)  クロムとタンタルの合計が65重量%以下の
範囲含有する特許請求の範囲第1項記載の真空しゃ断器
用接点材料。 (3)  クロムが5〜30重量%、及びタンタルが5
〜30重量%の範囲にあることを特徴とする特許請求の
範囲第1項記載の真空しゃ断器用接点材料。 (4)銅、クロム、及びタンタルが、各々単体金属、王
者もしくは王者の合金、王者もしくは王者の金属間化合
物、又はそれらの複合体として分布1〜でいるこ、!:
全特徴とする特許請求の範囲第1項ないし第3項のいず
れかに記載の真空しゃ断器用゛接点材料。 (5) ビスマス、テルル、アンチモン、タリウム。 鉛、セレン、セリウム及びカルシウムの低融点金属、そ
れらの合金、菟びにそれらの金属間化合物のうち少なく
とも1種以上を20重量%以下含有していることを特徴
とする特許請求の範囲第1項ないし第4項のいずれかに
記載の真空しゃ断器用接点材料。
[Claims] (Contains 11 copper and 3 chromium as other components)
A contact material for a vacuum breaker, characterized in that it contains 5% by weight or less of tantalum, 50% by weight or less of tantalum, and a total of chromium and tantalum of 10% by weight or more. (2) The contact material for a vacuum breaker according to claim 1, wherein the total content of chromium and tantalum is 65% by weight or less. (3) 5-30% by weight of chromium and 5% by weight of tantalum
The contact material for a vacuum breaker according to claim 1, characterized in that the content is in the range of 30% by weight. (4) Copper, chromium, and tantalum each have a distribution of 1 to 1 as an elemental metal, a king or a king's alloy, a king or a king's intermetallic compound, or a composite thereof! :
A contact material for a vacuum breaker according to any one of claims 1 to 3, characterized in that it has all the characteristics. (5) Bismuth, tellurium, antimony, thallium. Claim 1, characterized in that it contains 20% by weight or less of at least one of low melting point metals such as lead, selenium, cerium, and calcium, their alloys, and their intermetallic compounds. 4. A contact material for a vacuum breaker according to any one of items 4 to 4.
JP19278582A 1982-11-01 1982-11-01 Contact material for vacuum breaker Granted JPS5981816A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP19278582A JPS5981816A (en) 1982-11-01 1982-11-01 Contact material for vacuum breaker
US06/547,218 US4517033A (en) 1982-11-01 1983-10-31 Contact material for vacuum circuit breaker
EP83110920A EP0110176B1 (en) 1982-11-01 1983-11-02 Contact material for vacuum circuit breaker
DE8383110920T DE3378088D1 (en) 1982-11-01 1983-11-02 Contact material for vacuum circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19278582A JPS5981816A (en) 1982-11-01 1982-11-01 Contact material for vacuum breaker

Publications (2)

Publication Number Publication Date
JPS5981816A true JPS5981816A (en) 1984-05-11
JPS6336089B2 JPS6336089B2 (en) 1988-07-19

Family

ID=16296953

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19278582A Granted JPS5981816A (en) 1982-11-01 1982-11-01 Contact material for vacuum breaker

Country Status (1)

Country Link
JP (1) JPS5981816A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5698008A (en) * 1994-02-21 1997-12-16 Kabushiki Kaisha Toshiba Contact material for vacuum valve and method of manufacturing the same
JP2015207456A (en) * 2014-04-21 2015-11-19 三菱電機株式会社 Contact material for vacuum valve, and vacuum valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5698008A (en) * 1994-02-21 1997-12-16 Kabushiki Kaisha Toshiba Contact material for vacuum valve and method of manufacturing the same
US5882448A (en) * 1994-02-21 1999-03-16 Kabushiki Kaisha Toshiba Contact material for vacuum valve and method of manufacturing the same
JP2015207456A (en) * 2014-04-21 2015-11-19 三菱電機株式会社 Contact material for vacuum valve, and vacuum valve

Also Published As

Publication number Publication date
JPS6336089B2 (en) 1988-07-19

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