JPH0718351A - Sintered current collecting sliding material - Google Patents
Sintered current collecting sliding materialInfo
- Publication number
- JPH0718351A JPH0718351A JP16822393A JP16822393A JPH0718351A JP H0718351 A JPH0718351 A JP H0718351A JP 16822393 A JP16822393 A JP 16822393A JP 16822393 A JP16822393 A JP 16822393A JP H0718351 A JPH0718351 A JP H0718351A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- sintered
- arc
- sliding material
- wear
- 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.)
- Pending
Links
Landscapes
- Powder Metallurgy (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、焼結集電摺動材料に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sintered current collecting sliding material.
【０００２】[0002]
【従来技術とその課題】集電摺動材料は、さまざまな分
野で幅広く利用されているが、高速鉄道車両のパンタグ
ラフすり板のように過酷な条件下で使用される場合に
は、特に優れた耐摩耗性が要求される。2. Description of the Related Art Current collecting sliding materials are widely used in various fields, but are particularly excellent when used under severe conditions such as pantograph sliding plates of high-speed railway vehicles. Wear resistance is required.
【０００３】従来からのパンタグラフすり板としては、
焼結金属製のすり板が用いられている。上記すり板は、
主に鉄合金、銅合金等を素地とし、これに金属間化合物
（ＦｅＭｏ等）又は金属（Ｃｒ等）を耐摩耗性成分とし
て添加したものである。As a conventional pantograph slider,
A scraping plate made of sintered metal is used. The sliding plate is
Mainly, an iron alloy, a copper alloy, or the like is used as a base material, and an intermetallic compound (FeMo or the like) or a metal (Cr or the like) is added as a wear-resistant component.
【０００４】しかしながら、近年の車両速度の高速化、
パンタグラフ数の減少等により、パンタグラフすり板に
かかる負担が非常に大きくなっている。即ち、車両速度
の高速化によってパンタグラフとトロリ線の間の離線が
増加し、アーク放電がより発生し易くなる結果、すり板
のアークに起因する摩耗が極めて大きくなる。また、パ
ンタグラフ数の減少（１／２〜１／４）によってすり板
当たりの集電量が増加することも上記の摩耗を大きくす
る原因となっている。However, in recent years, speeding up of vehicle speed,
Due to the decrease in the number of pantographs and the like, the burden on the pantograph contact plate has become very large. That is, as the vehicle speed increases, the separation between the pantograph and the trolley wire increases, and arc discharge is more likely to occur. As a result, the abrasion of the contact plate due to the arc becomes extremely large. In addition, the decrease in the number of pantographs (1/2 to 1/4) increases the amount of current collected per contact plate, which also causes the above-mentioned wear to increase.
【０００５】このように、従来の集電摺動材料では、そ
の耐摩耗性が上記のような過酷な使用条件に対応し切れ
なくなりつつあり、より優れた耐摩耗性を有する材料の
開発が切望されている。As described above, the current-collecting sliding material of the related art is becoming hard to be worn against the above-mentioned severe operating conditions, and it is desired to develop a material having more excellent wear resistance. Has been done.
【０００６】[0006]
【発明が解決しようとする課題】従って、本発明は、高
速鉄道車両のパンタグラフすり板におけるような過酷な
使用条件下でも優れた耐アーク性、耐摩耗性等を発揮で
きる集電摺動材料を提供することを主な目的とする。SUMMARY OF THE INVENTION Therefore, the present invention provides a current-collecting sliding material capable of exhibiting excellent arc resistance, wear resistance, etc. even under severe use conditions such as in pantograph contact plates of high-speed railway vehicles. The main purpose is to provide.
【０００７】[0007]
【課題を解決するための手段】本発明者は、上記従来技
術の問題点に鑑み、鋭意研究を重ねたところ、一般的な
金属素地に対して一定量のタングステンを添加した材料
が、良好な耐アーク性を有する結果、優れた耐摩耗性を
発揮できることを見出し、本発明を完成するに至った。The inventors of the present invention have conducted extensive studies in view of the above-mentioned problems of the prior art, and found that a material obtained by adding a certain amount of tungsten to a general metal base is favorable. As a result of having arc resistance, they have found that they can exhibit excellent wear resistance, and have completed the present invention.
【０００８】即ち、本発明は、鉄若しくは鉄合金又は銅
若しくは銅合金にタングステンを８〜６０重量％含むこ
とを特徴とする焼結集電摺動材料材料に係るものであ
る。That is, the present invention relates to a material for a sintered current collecting sliding material, characterized in that iron or iron alloy or copper or copper alloy contains 8 to 60% by weight of tungsten.
【０００９】以下、本発明について詳細に説明する。The present invention will be described in detail below.
【００１０】本発明における素地金属としては、鉄若し
くは鉄合金又は銅若しくは銅合金が挙げられ、鉄合金と
しては鉄−ニッケル系、鉄−炭素等、銅合金としては銅
−スズ系、銅−亜鉛系等がそれぞれ例示できる。この中
でも鉄−ニッケル系のものが好ましい。Examples of the base metal in the present invention include iron or iron alloys or copper or copper alloys. The iron alloys are iron-nickel type, iron-carbon, etc., and the copper alloys are copper-tin type, copper-zinc. Examples include systems. Among these, iron-nickel type is preferable.
【００１１】本発明材料は、上記金属素地中にタングス
テンが通常８〜６０重量％程度、好ましくは１０〜５０
重量％含有する。含有量が８重量％を下回る場合には高
レベルの耐アーク性を得ることが困難となる結果、耐摩
耗性が低下し、また６０重量％を上回る場合には強度が
低下するので好ましくない。In the material of the present invention, tungsten is usually contained in the metal base in an amount of about 8 to 60% by weight, preferably 10 to 50%.
Contains by weight%. If the content is less than 8% by weight, it becomes difficult to obtain a high level of arc resistance, and as a result, the wear resistance decreases, and if it exceeds 60% by weight, the strength decreases, which is not preferable.
【００１２】本発明では、必要に応じて耐摩耗成分、潤
滑成分等を耐アーク性等を低下させない範囲内で添加し
ても良い。耐摩耗成分の添加により、耐摩耗性が一層向
上する。また、潤滑成分の添加により、トロリ線を保護
し、摺動抵抗を低減することができる。なお、タングス
テン単独の添加でも十分に優れた耐摩耗性、低摺動抵抗
性等を発揮でき、しかもトロリ線を保護できることは言
うまでもない。In the present invention, if necessary, wear resistant components, lubricating components, etc. may be added within a range that does not deteriorate the arc resistance and the like. The addition of the wear-resistant component further improves wear resistance. In addition, the addition of the lubricating component can protect the trolley wire and reduce the sliding resistance. It is needless to say that addition of tungsten alone can exert sufficiently excellent wear resistance, low sliding resistance, etc. and can protect the contact wire.
【００１３】上記の耐摩耗成分としてはＦｅＭｏ、Ｆｅ
Ｗ、ＦｅＴｉ及びＣｒから選ばれた少なくとも１種を用
い、本発明焼結材料中に通常１〜２０重量％程度含有さ
せる。上記含有量が１重量％未満では耐摩耗性への寄与
が十分でなく、２０重量％を超えると強度が低下するの
で好ましくない。上記の潤滑成分としては、Ｐｂ、Ｍｏ
Ｓ2 及びＷＳ2 から選ばれた少なくとも１種を用い、本
発明焼結材料中に通常０．５〜１０重量％含有させる。
上記含有量が０．５重量％未満では上記効果が不十分で
あり、１０重量％を超えると強度が低下するので好まし
くない。FeMo and Fe are used as the above wear-resistant components.
At least one selected from W, FeTi and Cr is used and is usually contained in the sintered material of the present invention in an amount of about 1 to 20% by weight. If the content is less than 1% by weight, the contribution to the wear resistance is not sufficient, and if it exceeds 20% by weight, the strength decreases, which is not preferable. As the above-mentioned lubricating component, Pb, Mo
At least one selected from S 2 and WS 2 is used and is usually contained in the sintered material of the present invention in an amount of 0.5 to 10% by weight.
If the content is less than 0.5% by weight, the above effect is insufficient, and if it exceeds 10% by weight, the strength decreases, which is not preferable.
【００１４】本発明材料の製造方法は以下の通りであ
る。まず、素地金属の粉末を原料として用いる。粉末の
粒径は通常１５０μｍ以下程度とすれば良い。次に、上
記粉末原料に対し、所定量のタングステン粉末を添加
し、常法に従って混合する。原料タングステンの粒径は
通常４０〜４００μｍ程度とする。また、必要に応じて
前記の耐摩耗性成分、潤滑成分等も添加・混合する。続
いて、得られた混合粉末を通常の加圧成形法により成形
する。成形圧は粉末の組成等によっても異なるが、通常
３〜７ｔｏｎ／ｃｍ2 程度とする。The method for producing the material of the present invention is as follows. First, the base metal powder is used as a raw material. The particle size of the powder may normally be about 150 μm or less. Next, a predetermined amount of tungsten powder is added to the above powder raw material and mixed according to a conventional method. The grain size of the raw material tungsten is usually about 40 to 400 μm. In addition, the above-mentioned wear resistant component, lubricating component, etc. are added and mixed as necessary. Subsequently, the obtained mixed powder is molded by a usual pressure molding method. The molding pressure is usually 3 to 7 ton / cm 2 , though it depends on the composition of the powder and the like.
【００１５】次いで、常法に従って成形体の焼結を行な
う。焼結条件は、窒素ガス等による中性雰囲気又はアン
モニア分解ガス等による還元雰囲気下で通常８００〜１
２００℃程度で１〜２時間程度で行なうことが好まし
い。焼結後、必要に応じて再度焼結しても良い。また、
ホットプレス法により、上記の成形・焼結を同時に行な
うことも可能である。Then, the compact is sintered according to a conventional method. Sintering conditions are normally 800 to 1 under a neutral atmosphere such as nitrogen gas or a reducing atmosphere such as ammonia decomposition gas.
It is preferable to perform the treatment at about 200 ° C. for about 1 to 2 hours. After sintering, it may be re-sintered if necessary. Also,
It is also possible to simultaneously perform the above-mentioned molding and sintering by the hot pressing method.
【００１６】[0016]
【発明の効果】本発明の焼結集電摺動材料は、優れた耐
アーク性を発揮できる結果、耐摩耗性において優れた性
能を発揮し、過酷な条件下でも十分使用に耐えることが
可能となる。このため、本発明の焼結集電摺動材料は、
過酷な条件下で使用される高速鉄道車両のパンタグラフ
すり板等に特に有用である。EFFECT OF THE INVENTION The sintered current collecting sliding material of the present invention can exhibit excellent arc resistance and, as a result, exhibits excellent performance in abrasion resistance and can be sufficiently used even under severe conditions. Become. Therefore, the sintered current collector sliding material of the present invention is
It is particularly useful for pantograph contact plates of high-speed railway vehicles used under severe conditions.
【００１７】[0017]
【実施例】以下に実施例および比較例を示し、本発明の
特徴とするところをより一層明確にする。なお、本実施
例中の摩耗特性試験は、以下の設定条件下でそれぞれ行
なった。EXAMPLES Examples and comparative examples will be shown below to further clarify the features of the present invention. The wear characteristic test in this example was carried out under the following set conditions.
【００１８】（イ）アーク摩耗試験 摺動速度 １００ｋｍ／ｈ 通電電流 ２００Ａ 押付力 ５ｋｇｆ 試験時間 ０．５秒摺動：１秒休止×２００回 （ロ）定常摩耗試験 摺動速度 １００ｋｍ／ｈ 通電電流 １００Ａ 押付力 ５ｋｇｆ 試験時間 １秒摺動：１秒休止×２００回 実施例１ 表１に示す組成のＦｅ系混合粉末原料を、加圧成形によ
り６ｔｏｎ／ｃｍ2 で成形した後、得られた成形体をア
ンモニア分解ガス中１１５０℃で１時間焼結した。得ら
れた焼結体の材料特性及び摩耗特性を調べた。その結果
を表２及び３にそれぞれ示す。(A) Arc wear test Sliding speed 100 km / h Energizing current 200 A Pressing force 5 kgf Test time 0.5 seconds Sliding: 1 second pause × 200 times (b) Steady state abrasion test Sliding speed 100 km / h Energizing current 100A Pressing force 5 kgf Test time 1 second Sliding: 1 second pause × 200 times Example 1 Fe-based mixed powder raw material having the composition shown in Table 1 was molded by pressure molding at 6 ton / cm 2 and then obtained. The body was sintered in ammonia decomposition gas at 1150 ° C. for 1 hour. The material properties and wear properties of the obtained sintered body were examined. The results are shown in Tables 2 and 3, respectively.
【００１９】[0019]
【表１】 [Table 1]
【００２０】[0020]
【表２】 [Table 2]
【００２１】[0021]
【表３】 [Table 3]
【００２２】実施例２ 表４に示す組成のＣｕ系混合粉末原料を、加圧成形によ
り４ｔｏｎ／ｃｍ2 で成形した後、得られた成形体をア
ンモニア分解ガス中８５０℃で１時間焼結した。その
後、さらに４ｔｏｎ／ｃｍ2 で再圧縮した後、アンモニ
ア分解ガス中８５０℃で１時間再焼結した。得られた焼
結体の材料特性及び摩耗特性を調べた。その結果を表５
及び６にそれぞれ示す。Example 2 A Cu-based mixed powder raw material having the composition shown in Table 4 was molded by pressure molding at 4 ton / cm 2 , and the obtained molded body was sintered in ammonia decomposition gas at 850 ° C. for 1 hour. . Then, after further re-compressing at 4 ton / cm 2 , it was re-sintered in ammonia decomposition gas at 850 ° C. for 1 hour. The material properties and wear properties of the obtained sintered body were examined. The results are shown in Table 5.
And 6 respectively.
【００２３】[0023]
【表４】 [Table 4]
【００２４】[0024]
【表５】 [Table 5]
【００２５】[0025]
【表６】 [Table 6]
【００２６】以上の結果より、本発明品である試料Ｎ
ｏ．１〜９は、特に優れた耐摩耗性を発揮することがわ
かる。From the above results, the sample N which is the product of the present invention
o. It can be seen that 1 to 9 exhibit particularly excellent wear resistance.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 福原 邦夫 東京都国分寺市光町二丁目８番地38 財団 法人鉄道総合技術研究所内 (72)発明者 冨山 嘉孝 京都府京都市山科区栗栖野狐塚町５−１ 日本粉末合金株式会社内 (72)発明者 斎藤 浩次郎 京都府京都市山科区栗栖野狐塚町５−１ 日本粉末合金株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kunio Fukuhara Inventor Kunio Fukuhara 2-8-chome, Hikarimachi, Kokubunji, Tokyo 38 Inside the Railway Technical Research Institute 1 In Japan Powder Alloy Co., Ltd. (72) Inventor Kojiro Saito 5-1 Kurisuno Foxzuka Town, Yamashina-ku, Kyoto Prefecture Kyoto Prefecture
Claims (4)
タングステンを８〜６０重量％含有することを特徴とす
る焼結集電摺動材料。1. A sintered current collecting and sliding material comprising 8 to 60% by weight of tungsten in iron or iron alloy, copper or copper alloy.
タングステンを８〜６０重量％含有し、さらにＦｅＭ
ｏ、ＦｅＷ、ＦｅＴｉ及びＣｒから選ばれた少なくとも
１種を１〜２０重量％含む焼結集電摺動材料。2. Iron or iron alloy, copper or copper alloy containing 8 to 60% by weight of tungsten, and FeM.
A sintered current collector sliding material containing 1 to 20% by weight of at least one selected from o, FeW, FeTi and Cr.
タングステンを８〜６０重量％含有し、さらにＰｂ、Ｍ
ｏＳ2 及びＷＳ2 から選ばれた少なくとも１種を０．５
〜１０重量％含む焼結集電摺動材料。3. Iron or iron alloy, copper or copper alloy containing 8 to 60% by weight of tungsten, and further Pb, M
0.5 at least one selected from oS 2 and WS 2.
Sintered current collector sliding material containing 10 to 10% by weight.
タングステンを８〜６０重量％含有し、さらにＦｅＭ
ｏ、ＦｅＷ、ＦｅＴｉ及びＣｒから選ばれた少なくとも
１種１〜２０重量％並びにＰｂ、ＭｏＳ2 及びＷＳ2 か
ら選ばれた少なくとも１種０．５〜１０重量％を含む焼
結集電摺動材料。4. Iron or iron alloy, copper or copper alloy containing 8 to 60% by weight of tungsten, and FeM
A sintered current collector sliding material containing 1 to 20% by weight of at least one selected from o, FeW, FeTi and Cr and 0.5 to 10% by weight of at least one selected from Pb, MoS 2 and WS 2 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16822393A JPH0718351A (en) | 1993-07-07 | 1993-07-07 | Sintered current collecting sliding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16822393A JPH0718351A (en) | 1993-07-07 | 1993-07-07 | Sintered current collecting sliding material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0718351A true JPH0718351A (en) | 1995-01-20 |
Family
ID=15864070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16822393A Pending JPH0718351A (en) | 1993-07-07 | 1993-07-07 | Sintered current collecting sliding material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0718351A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100043662A1 (en) * | 2007-01-26 | 2010-02-25 | Hoganas Ab (Publ) | Diffusion alloyed iron powder |
| CN104032201A (en) * | 2014-04-28 | 2014-09-10 | 宁波恒基永昕粉末冶金有限公司 | Method for making pneumatic tool cylinder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51136520A (en) * | 1975-05-22 | 1976-11-26 | Mitsubishi Metal Corp | Wear res isting iron-based sintered alloy |
| JPS53146902A (en) * | 1976-12-17 | 1978-12-21 | Japanese National Railways<Jnr> | Preparation of wear-resisting sintered alloy of copper base |
| JPH05105995A (en) * | 1991-10-15 | 1993-04-27 | Railway Technical Res Inst | Pantograph contact strip for high speed electric rolling stock |
-
1993
- 1993-07-07 JP JP16822393A patent/JPH0718351A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51136520A (en) * | 1975-05-22 | 1976-11-26 | Mitsubishi Metal Corp | Wear res isting iron-based sintered alloy |
| JPS53146902A (en) * | 1976-12-17 | 1978-12-21 | Japanese National Railways<Jnr> | Preparation of wear-resisting sintered alloy of copper base |
| JPH05105995A (en) * | 1991-10-15 | 1993-04-27 | Railway Technical Res Inst | Pantograph contact strip for high speed electric rolling stock |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100043662A1 (en) * | 2007-01-26 | 2010-02-25 | Hoganas Ab (Publ) | Diffusion alloyed iron powder |
| CN104032201A (en) * | 2014-04-28 | 2014-09-10 | 宁波恒基永昕粉末冶金有限公司 | Method for making pneumatic tool cylinder |
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