JPH0368496B2 - - Google Patents
Info
- Publication number
- JPH0368496B2 JPH0368496B2 JP57127084A JP12708482A JPH0368496B2 JP H0368496 B2 JPH0368496 B2 JP H0368496B2 JP 57127084 A JP57127084 A JP 57127084A JP 12708482 A JP12708482 A JP 12708482A JP H0368496 B2 JPH0368496 B2 JP H0368496B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- electrical contact
- resistance
- bismuth
- copper
- 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 22
- 229910052797 bismuth Inorganic materials 0.000 claims description 10
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 239000011572 manganese Substances 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
- 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 description 5
- 238000005299 abrasion Methods 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
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 3
- 239000005751 Copper oxide Substances 0.000 description 3
- 229910000431 copper oxide Inorganic materials 0.000 description 3
- 229910000416 bismuth oxide Inorganic materials 0.000 description 2
- WZSWPMDIARCYDN-UHFFFAOYSA-N copper;oxosilver Chemical compound [Ag].[Cu]=O WZSWPMDIARCYDN-UHFFFAOYSA-N 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
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
Landscapes
- Contacts (AREA)
- Manufacture Of Switches (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−酸化銅が用いられてきた。銀
−酸化銅は、電気伝導度が高く接触抵抗が低い
が、耐溶着性、耐消耗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、耐消耗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、マンガン１〜10重量％と、銅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％、マンガン１〜10重量％と、銅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％、マンガン１〜10重量％、銅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、マンガン１重
量％未満では耐アーク性を改善することができな
いため耐消耗性が十分得られず、銅１重量％未満
では耐溶着性、耐消耗性に関しては良好な結果が
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、マンガン10重量％を越えると酸化物が層状
に析出し接触抵抗を劣化させ、銅10重量％を越え
ると酸化銅の球状粒子が粗大化して接触抵抗を不
安定にさせ、また耐溶着性を劣化させるので、ビ
スマス0.1〜５重量％、マンガン１〜10重量％、
銅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％、マンガン１〜10重
量％、銅１〜10重量％以外に鉄族元素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、酸化マンガン及び酸化銅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、酸化マ
ンガン及び酸化銅が均一微細に分散せず、0.5重
量％を越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-copper oxide has conventionally been used as one of the electrical contact materials manufactured by internal oxidation. Silver-copper oxide has high electrical conductivity and low contact resistance, but is inferior in welding resistance and wear resistance. Therefore, the inventor of the present invention has conducted extensive research to develop an electrical contact material that has contact properties superior to those of this electrical contact material in terms of welding resistance and abrasion resistance, 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 manganese, and 1~1% by weight of copper.
It is a material consisting of 10% by weight and the balance silver, and is internally oxidized. Another electrical contact material of the present invention is bismuth
0.1-5% by weight, 1-10% by weight of manganese, and 1% by weight of copper.
~10% by weight, 0.01~0.5% by weight of iron group elements, and the balance is silver, and is internally oxidized. In the electrical contact material of the present invention, bismuth 0.1
The reason for setting bismuth to 5% by weight, 1 to 10% by weight of manganese, and 1 to 10% by weight of copper is that less than 0.1% by weight of bismuth has little effect on improving welding resistance, while less than 1% by weight of manganese improves arc resistance. If it is less than 1% by weight of copper, good results cannot be obtained in terms of welding resistance or abrasion resistance, and if it exceeds 5% by weight of bismuth, the melting point of the alloy will be low. If the temperature drops too low, internal oxidation becomes difficult, and if the content exceeds 10% by weight of manganese, oxides will precipitate in layers and deteriorate the contact resistance, and if the content exceeds 10% by weight of copper, the spherical particles of copper oxide will become coarse and reduce the contact resistance. Bismuth 0.1 to 5% by weight, manganese 1 to 10% by weight,
When the copper content is within the range of 1 to 10% by weight, an electrical contact material with sufficiently satisfactory welding resistance, abrasion resistance, and contact resistance properties can be obtained. Furthermore, in another electrical contact material of the present invention, in addition to 0.1 to 5% by weight of bismuth, 1 to 10% by weight of manganese, and 1 to 10% by weight of copper, 0.01 to 0.5% of iron group elements
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, manganese oxide, and copper oxide further reduces consumption due to discharge. If the amount is less than 0.01% by weight, bismuth oxide, manganese oxide, and copper oxide will not be uniformly and finely dispersed, and if it exceeds 0.5% by weight, their segregation will increase. 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
の電気接点材料で従つたリベツト型電気接点に比
し、耐消耗性、耐溶着性が遥かに優れ、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、耐消耗性に優
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 better wear resistance and wear resistance than the rivet-type electrical contacts made with the conventional electrical contact materials. It can be seen that the welding resistance is far superior, and the contact resistance characteristics are approximately the same. As described in detail above, the electrical contact material of the present invention has contact properties that are superior in welding resistance and abrasion resistance than conventional electrical contact materials, so it is a revolutionary product that can replace conventional electrical contact materials. It can be said that it is something like that.
Claims (1)
重量％と、銅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、マンガン１〜10
重量％と、銅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。[Claims] 1. 0.1 to 5% by weight of bismuth and 1 to 10% of manganese.
% by weight, 1 to 10% by weight of copper, and the balance silver, and is internally oxidized. 2 Bismuth 0.1-5% by weight and manganese 1-10
% by weight, 1 to 10% by weight of copper, 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 |
|---|---|---|---|
| JP57127084A JPS5918521A (en) | 1982-07-21 | 1982-07-21 | Electric contact material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57127084A JPS5918521A (en) | 1982-07-21 | 1982-07-21 | Electric contact material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5918521A JPS5918521A (en) | 1984-01-30 |
| JPH0368496B2 true JPH0368496B2 (en) | 1991-10-28 |
Family
ID=14951178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57127084A Granted JPS5918521A (en) | 1982-07-21 | 1982-07-21 | Electric contact material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5918521A (en) |
-
1982
- 1982-07-21 JP JP57127084A patent/JPS5918521A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5918521A (en) | 1984-01-30 |
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