JPH0368495B2 - - Google Patents
Info
- Publication number
- JPH0368495B2 JPH0368495B2 JP57127083A JP12708382A JPH0368495B2 JP H0368495 B2 JPH0368495 B2 JP H0368495B2 JP 57127083 A JP57127083 A JP 57127083A JP 12708382 A JP12708382 A JP 12708382A JP H0368495 B2 JPH0368495 B2 JP H0368495B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- electrical contact
- bismuth
- manganese
- zinc
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 23
- 229910052797 bismuth Inorganic materials 0.000 claims description 9
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 8
- 239000011701 zinc Substances 0.000 claims description 8
- 229910052725 zinc Inorganic materials 0.000 claims description 8
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000003466 welding Methods 0.000 description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- FUQJNDYDRODJDT-UHFFFAOYSA-N [Ag+].[O-2].[Mn+2] Chemical compound [Ag+].[O-2].[Mn+2] FUQJNDYDRODJDT-UHFFFAOYSA-N 0.000 description 2
- 229910000416 bismuth oxide Inorganic materials 0.000 description 2
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
Landscapes
- Manufacture Of Switches (AREA)
- Contacts (AREA)
Description
本発明は、電気接点材料に関するものである。
従来より内部酸化法により製作した電気接点材
料の一つとして銀−酸化マンガンが用いられてき
た。銀−酸化マンガンは、電気伝導度が低いため
接点開閉時に温度上昇が著しく耐溶着性に劣るも
のである。
そこで本発明者は、この電気接点材料よりも耐
溶着性に優れた接点特性を有する電気接点材料を
開発すべく鋭意考究の結果、満足できる電気接点
材料を見い出したものである。
本発明の電気接点材料の一つは、ビスマス0.1
〜５重量％と、亜鉛１〜10重量％と、マンガン１
〜10重量％と、残部銀から成る材料であつて、且
つ内部酸化されているものである。
本発明の電気接点材料の他の一つは、ビスマス
0.1〜５重量％と、亜鉛１〜10重量％と、マンガ
ン１〜10重量％、鉄族元素0.01〜0.5重量％と、
残部銀から成る材料であつて、且つ内部酸化され
ているものである。
本発明の電気接点材料に於いて、ビスマス0.1
〜５重量％、亜鉛１〜10重量％、マンガン１〜10
重量％とした理由は、ビスマス0.1重量％未満で
は耐溶着性を改善する効果が少なく、亜鉛１重量
％未満では耐消耗性に関しては良好な結果が得ら
れず、マンガン１重量％未満では耐消耗性、耐溶
着性が十分得られず、またビスマス５重量％を越
えると、合金の融点が下がりすぎ高温での内部酸
化が困難となり、亜鉛又はマンガン共に10重量％
を越えると酸化物が層状に析出し接触抵抗が高く
不安定となるので、ビスマス0.1〜５重量％、亜
鉛１〜10重量％、マンガン１〜10重量％の範囲内
では、耐溶着性、耐消耗性、接触抵抗特性の充分
満足できる電気接点材料が得られるものである。
さらに本発明の電気接点材料の他の一つに於い
て、ビスマス0.1〜５重量％、亜鉛１〜10重量％、
マンガン１〜10重量％以下に鉄族元素0.01〜0.5
重量％添加する理由は、これを電気接点材料に分
散させた場合、これにより得られる酸化ビスマ
ス、酸化亜鉛及び酸化マンガンの均一微細な分散
によつて、放電による消耗が一層減少するからで
あつて、0.01重量％未満では酸化ビスマス、酸化
亜鉛及び酸化マンガンが均一微細に分散せず、
0.5重量％を超えるとそれ自体の偏析が増加する
からである。
次に本発明による電気接点材料の効果を明瞭な
らしめる為に、具体的な実施例と従来例について
説明する。
下記の表の左欄に示す実施例１〜４の成分組成
の材料を溶解し、アトマイズ粉となした後、600
℃、９気圧、２日間内部酸化し、この酸化アトマ
イズ粉を圧縮焼結し、これを押出、引抜加工した
後切断してヘツダー加工し、頭部径５mm、頭高１
mm、脚部径2.5mm、脚長2.5mmの固定接点と頭部径
４mm、頭高1.1mm、脚部径2.8mm、脚長1.6mm、頭部
球状5Rの可動接点を得た。
然してこれら実施例１〜４の電気接点材料にて
作つたリベツト型電気接点と、下記の表の左欄に
示す従来例の成分組成の材料を実施例と同じ方法
で作つた同一寸法のリベツト型電気接点をヒンジ
型リレーに組み込み下記の試験条件にて開閉試験
を行つた処、下記の表の右欄に示すような結果を
得た。
試験条件
電圧：AC100V 50Hz
電流：投入40A、定常10A
負荷：抵抗
開閉頻度：20回／分
開閉回数：溶着発生迄
接触力：40ｇ
The present invention relates to electrical contact materials. Silver-manganese oxide has conventionally been used as one of the electrical contact materials manufactured by internal oxidation. Since silver-manganese oxide has low electrical conductivity, the temperature rises significantly when the contacts are opened and closed, and the welding resistance is poor. Therefore, the inventor of the present invention has conducted intensive studies to develop an electrical contact material having contact characteristics superior in welding resistance than this electrical contact material, and as a result, has found a satisfactory electrical contact material. One of the electrical contact materials of the present invention is bismuth 0.1
~5% by weight, 1-10% by weight of zinc, and 1% by weight of manganese.
~10% by weight, the balance being silver, and is internally oxidized. Another electrical contact material of the present invention is bismuth
0.1 to 5% by weight, 1 to 10% by weight of zinc, 1 to 10% by weight of manganese, 0.01 to 0.5% by weight of iron group elements,
It is a material consisting of balance silver and is internally oxidized. In the electrical contact material of the present invention, bismuth 0.1
~5% by weight, zinc 1-10% by weight, manganese 1-10
The reason why it is expressed as % by weight is that less than 0.1% by weight of bismuth has little effect on improving welding resistance, less than 1% by weight of zinc does not give good results in terms of wear resistance, and less than 1% by weight of manganese does not improve wear resistance. If bismuth exceeds 5% by weight, the melting point of the alloy will drop too much and internal oxidation at high temperatures will become difficult.
If the content exceeds 0.1 to 5% by weight of bismuth, 1 to 10% by weight of zinc, and 1 to 10% by weight of manganese, the welding resistance and An electrical contact material having sufficiently satisfactory consumable properties and contact resistance characteristics can be obtained. Furthermore, in another electrical contact material of the present invention, bismuth 0.1 to 5% by weight, zinc 1 to 10% by weight,
Manganese 1-10% by weight or less, iron group elements 0.01-0.5
The reason for adding % by weight is that when it is dispersed in an electrical contact material, the resulting uniform and fine dispersion of bismuth oxide, zinc oxide, and manganese oxide further reduces consumption due to discharge. , if it is less than 0.01% by weight, bismuth oxide, zinc oxide and manganese oxide will not be uniformly and finely dispersed,
This is because if it exceeds 0.5% by weight, segregation of itself increases. Next, in order to clarify the effects of the electrical contact material according to the present invention, specific examples and conventional examples will be described. After melting the materials having the compositions of Examples 1 to 4 shown in the left column of the table below and making them into atomized powder, 600
℃, 9 atm for 2 days, the oxidized atomized powder was compressed and sintered, extruded and drawn, then cut and processed into headers, with a head diameter of 5 mm and a head height of 1.
A fixed contact with a leg diameter of 2.5 mm, a leg length of 2.5 mm, and a movable contact with a head diameter of 4 mm, a head height of 1.1 mm, a leg diameter of 2.8 mm, a leg length of 1.6 mm, and a spherical head shape of 5R were obtained. However, the rivet-type electrical contacts made using the electrical contact materials of Examples 1 to 4 and the rivet-type electrical contacts of the same size made using the materials having the compositions of the conventional examples shown in the left column of the table below in the same manner as in the examples. When electrical contacts were assembled into a hinge-type relay and a switching test was conducted under the test conditions below, the results shown in the right column of the table below were obtained. Test conditions Voltage: AC100V 50Hz Current: 40A, steady 10A Load: Resistance Switching frequency: 20 times/min Number of switching: Contact force until welding occurs: 40g
【表】
上記の表で明らかなように実施例１〜４の電気
接点材料で作つたリベツト型電気接点は、従来例
の電気接点材料で作つたリベツト型電気接点に比
し、耐溶着性優れ、耐溶着性、接触抵抗特性につ
いては略同等に優れていることが判る。
以上詳記した通り本発明の電気接点材料は、従
来の電気接点材料よりも耐溶着性に優れた接点特
性を有するので、従来の電気接点材料にとつて代
わることのできる画期的なものと云える。[Table] As is clear from the above table, the rivet-type electrical contacts made with the electrical contact materials of Examples 1 to 4 have superior welding resistance compared to the rivet-type electrical contacts made with the conventional electrical contact materials. It can be seen that the welding resistance and contact resistance characteristics are almost equally excellent. As detailed above, the electrical contact material of the present invention has contact properties that are more resistant to welding than conventional electrical contact materials, so it is an epoch-making product that can replace conventional electrical contact materials. I can say that.
Claims (1)
％と、マンガン１〜10重量％と、残部銀から成る
材料であつて、且つ内部酸化されている電気接点
材料。 ２ ビスマス0.1〜５重量％と、亜鉛１〜10重量
％と、マンガン１〜10重量％と、鉄族元素0.01〜
0.5重量％と、残部銀から成る材料であつて、且
つ内部酸化されている電気接点材料。[Scope of Claims] 1. An electrical contact material consisting of 0.1 to 5% by weight of bismuth, 1 to 10% by weight of zinc, 1 to 10% by weight of manganese, and the balance being silver, and which is internally oxidized. 2 0.1 to 5% by weight of bismuth, 1 to 10% by weight of zinc, 1 to 10% by weight of manganese, and 0.01 to 10% of iron group elements
An electrical contact material consisting of 0.5% by weight and the balance silver, and which is internally oxidized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57127083A JPS5918520A (en) | 1982-07-21 | 1982-07-21 | Electric contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57127083A JPS5918520A (en) | 1982-07-21 | 1982-07-21 | Electric contact material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5918520A JPS5918520A (en) | 1984-01-30 |
| JPH0368495B2 true JPH0368495B2 (en) | 1991-10-28 |
Family
ID=14951151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57127083A Granted JPS5918520A (en) | 1982-07-21 | 1982-07-21 | Electric contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5918520A (en) |
-
1982
- 1982-07-21 JP JP57127083A patent/JPS5918520A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5918520A (en) | 1984-01-30 |