JPH01270571A - Production of carbon material for sliding and current collection - Google Patents
Production of carbon material for sliding and current collectionInfo
- Publication number
- JPH01270571A JPH01270571A JP9453288A JP9453288A JPH01270571A JP H01270571 A JPH01270571 A JP H01270571A JP 9453288 A JP9453288 A JP 9453288A JP 9453288 A JP9453288 A JP 9453288A JP H01270571 A JPH01270571 A JP H01270571A
- Authority
- JP
- Japan
- Prior art keywords
- sliding
- metal
- pore
- wire mesh
- carbonaceous powder
- 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
- 239000003575 carbonaceous material Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 40
- 239000002184 metal Substances 0.000 claims abstract description 39
- 239000000843 powder Substances 0.000 claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000011148 porous material Substances 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 6
- 238000010030 laminating Methods 0.000 claims abstract 2
- 238000010304 firing Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 41
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 23
- 229910052799 carbon Inorganic materials 0.000 abstract description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 12
- 229910045601 alloy Inorganic materials 0.000 abstract description 6
- 239000000956 alloy Substances 0.000 abstract description 6
- 229910052802 copper Inorganic materials 0.000 abstract description 6
- 239000010949 copper Substances 0.000 abstract description 6
- 239000011159 matrix material Substances 0.000 abstract description 5
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000011261 inert gas Substances 0.000 abstract description 2
- 229910017755 Cu-Sn Inorganic materials 0.000 abstract 1
- 229910017927 Cu—Sn Inorganic materials 0.000 abstract 1
- 239000002801 charged material Substances 0.000 abstract 1
- 239000010419 fine particle Substances 0.000 abstract 1
- 239000000571 coke Substances 0.000 description 9
- 239000002245 particle Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 5
- 238000005245 sintering Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000001993 wax Substances 0.000 description 4
- 229910000881 Cu alloy Inorganic materials 0.000 description 3
- LFVLUOAHQIVABZ-UHFFFAOYSA-N Iodofenphos Chemical compound COP(=S)(OC)OC1=CC(Cl)=C(I)C=C1Cl LFVLUOAHQIVABZ-UHFFFAOYSA-N 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 206010028347 Muscle twitching Diseases 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- PDYXSJSAMVACOH-UHFFFAOYSA-N [Cu].[Zn].[Sn] Chemical compound [Cu].[Zn].[Sn] PDYXSJSAMVACOH-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- CREMABGTGYGIQB-UHFFFAOYSA-N carbon carbon Chemical compound C.C CREMABGTGYGIQB-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は炭素系摺動集電材料の製造方法に関するもので
ある。更に詳しくいえはパンタフラフ摺板、電動機用集
電月料などに適用可能な炭素系槽動集電材料の製造方法
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a carbon-based sliding current collector material. More specifically, the present invention relates to a method for manufacturing a carbon-based cell dynamic current collector material that can be applied to pantograph sliding plates, current collectors for electric motors, and the like.
現在摺動集電用材料には、大きく分類して鋳造合金、焼
結合金等の金属系材料と炭素系材料の二つがある。Currently, materials for sliding current collectors are broadly classified into two types: metallic materials such as cast alloys and sintered alloys, and carbon-based materials.
金属系摺動集電材料は電気抵抗が極めて低く高強度を有
するが、アーク発生量が炭素系摺動集電材料と比較して
多く、高強度故に相手材の摩耗量を増加させてしまうと
いう欠点を有している。現在これら金属系摺動集電材料
は、特に高強度が要求される電車、電気機関車の集電用
パンタグラフ摺板等に利用されている。Metal-based sliding current collector materials have extremely low electrical resistance and high strength, but the amount of arc generated is greater than that of carbon-based sliding current collector materials, and their high strength increases the amount of wear on the mating material. It has drawbacks. Currently, these metal-based sliding current collector materials are used for current collecting pantograph sliding plates for electric trains and electric locomotives that require particularly high strength.
従来集電用パンタグラフ摺板材料には主に、銅、カーボ
ン、銅−鉄合金または銅−錫−亜鉛系合金なとの鋳造合
金、及び銅系又は鉄系の焼結合金などが用いられている
。しがし集電容量の増大、車両運行速度の増大により集
電用パンタフラフ摺板の使用環境は近年−段と過酷にな
ってきている。Traditionally, current collector pantograph sliding plate materials have mainly been cast alloys such as copper, carbon, copper-iron alloys or copper-tin-zinc alloys, and copper-based or iron-based sintered alloys. There is. In recent years, the environment in which current collecting pantograph sliding plates are used has become increasingly harsh due to increases in current collecting capacity and vehicle speeds.
最近は、車両の高速化にともない離線率が増加し、機械
的摩耗量及びアーク摩耗量が増大してきているほか、寒
冷地に於ける１〜ロリー線の氷結かもならず異常摩耗な
との問題や、摺動音か大きく騒音公害等の問題も発生し
ている。これらの摩耗に対しては摺板自身な４−１でな
く１−ロリー線、起電レール等の相手利料の摩耗をも少
なくする摺動特性のよい集電材料か望まれている。また
アーク発生はアーク摩耗のみならず電波障害も引き起こ
すため問題視されている。Recently, as the speed of rolling stock has increased, the wire loss rate has increased, and the amount of mechanical wear and arc wear has also increased.In addition, there is a problem that 1~Rolly wires may freeze in cold regions, causing abnormal wear. Problems such as loud sliding noise and noise pollution are also occurring. To prevent such abrasion, a current collecting material with good sliding properties is desired, which reduces the abrasion not only of the sliding plate itself but also of the other components such as the 1-rolly wire and the electromotive rail. Further, arc generation is viewed as a problem because it causes not only arc wear but also radio interference.
これら金属系摺動材料の欠点を補うことが可能であると
期待されているものに炭素系材料かある。Carbon-based materials are expected to be able to compensate for the drawbacks of these metal-based sliding materials.
炭素系摺動集電材料は良好な自己潤滑性と比較的低い電
気抵抗を有し、剛アーク性に優れ、軽量てありまた摺動
音も小さいという特徴を併せ持ち、上記金属系摺動集電
材料の欠点をカバーすることかてきる。しかし合属系材
料と比較すると電気抵抗かかなり高く、強度も極端に低
いという欠点を有することから、大きな力か直接かかる
箇所にζ」使えない。現在、これらはモーターフラジ等
に広く利用されている。炭素系摺動集電材料を利用して
いる分野でも使用条件か厳しくなってきている現在では
、その耐摩耗性向上、電気抵抗低下が更に求められてい
る。Carbon-based sliding current collector materials have good self-lubricating properties, relatively low electrical resistance, excellent rigid arc properties, light weight, and low sliding noise, and are superior to the metal-based sliding current collectors mentioned above. It can be used to cover up the shortcomings of the material. However, compared to composite materials, it has the drawbacks of considerably higher electrical resistance and extremely low strength, so it cannot be used in areas where large forces are directly applied. Currently, these are widely used in motor flages and the like. Nowadays, even in fields where carbon-based sliding current collector materials are used, the usage conditions are becoming stricter, and there is a growing demand for improved wear resistance and lower electrical resistance.
また炭素材料はその脆性がら折傷し易く、折損し７か場
合には集電材料か飛散し危険であると同時に最悪の場合
には集電か不用能となる恐れもある。Furthermore, carbon materials are brittle and easily break, and if they break, the current collecting material may scatter, which is dangerous, and in the worst case, the current collecting material may become unusable.
これらの欠点を解決ずへく各方面て検訃１が進められて
おり、現在では、炭素系摺動集電材料に金属を含浸した
り、炭素材料の原料粉末に金属粉を添加することにより
電気抵抗を下（すると共に強度の向−」−を計るという
方法が採られている （特公昭５２−８２２号公報、特
開昭６０−２３８４０２号公報）。しが１７ながら前述
の方法は強度向上、電気抵抗の低下にはある程度の効果
は期待てきるものの脆性破壊の防止に対する効果はあま
り期待てきない。In order to solve these shortcomings, examinations are being carried out in various fields, and currently, carbon-based sliding current collector materials are impregnated with metals, and metal powders are added to raw material powders of carbon materials. A method has been adopted in which the electrical resistance is decreased (and the direction of the strength is measured) (Japanese Patent Publication No. 52-822, Japanese Unexamined Patent Publication No. 60-238402). Although it is expected to be effective to some extent in improving electrical resistance and reducing electrical resistance, it is not expected to be very effective in preventing brittle fracture.
本発明は、従来の炭素材料と比較して低電気抵抗を有し
、かつ脆性破壊に対し゛Ｃ抵抗を有する高強度の炭素系
摺動集電材料の製造方法を提供するものである。The present invention provides a method for manufacturing a high-strength carbon-based sliding current collector material that has lower electrical resistance than conventional carbon materials and has a C resistance to brittle fracture.
本発明は、気孔形成剤を分散さぜな炭素質粉末中に、金
網を配設し、加圧成型した後力゛と成し、その後焼成し
ノこ際に生じる孔に金属を含浸することを特徴とする摺
動集電用炭素材料の製造方法である。本発明の摺動集電
用炭素材料の製造方法は多孔質炭素７トリツクス中に金
網あるいは金網と金属粉末を含有させたちのにさらに金
属を含浸することを特徴とする。The present invention involves disposing a wire mesh in a carbonaceous powder in which a pore-forming agent is dispersed, forming a pressure-molded material, and then impregnating the pores formed during firing with metal. A method for producing a carbon material for sliding current collector, characterized by: The method for producing a carbon material for sliding current collection according to the present invention is characterized by containing a wire mesh or a wire mesh and a metal powder in porous carbon 7 trix, and further impregnating it with a metal.
原料に用いる炭素質粉末としては自己焼結性を有する生
コークスを始めか類コークスとハインダービッヂの混合
物等が用いられる。その平均粒子径は３〜５０７１ｍ程
度か良いか、製品の均質化による炭素質７トリツクスの
強化、焼成時の割れ防止を考えると、５〜１５μｍ０程
度のものが好ましい。また炭素質粉末には銅、銅合金、
ニッケル、ニッケル合金等の金属粉末を５〜５０１％、
好ましくは２Ｏ−４０ｕ＋ｔ％混合添加し、でもよい。As the carbonaceous powder used as a raw material, raw coke having self-sintering properties, a mixture of coke and binder, etc. are used. The average particle diameter is preferably about 3 to 5,071 m, and preferably about 5 to 15 μm, considering strengthening of the carbonaceous 7-trix by homogenizing the product and prevention of cracking during firing. Carbonaceous powders include copper, copper alloys,
5-501% metal powder such as nickel and nickel alloy,
Preferably, a mixture of 2O-40u+t% may be added.
炭素質原料に金属粉末を添加することにより電気抵抗の
低下、金属線、含浸金属と炭素質基材との接合改善等か
期待てきる。By adding metal powder to the carbonaceous raw material, it is expected that the electrical resistance will be lowered and the bond between the metal wire or impregnated metal and the carbonaceous base material will be improved.
炭素質７１〜リツクスを多孔質化するためには、アソシ
カルポンアミド、シニ）へロソベンタメヂレンテｌ−ラ
ミン、ポリエチレン、ポリスチレン、フェノール樹脂、
アクリル樹脂、ワックス、各種でんぷん等の粉状の気孔
形成剤や、ナイロン、テ１−Ｉ７ン、アクリル、ポリエ
チレン、塩化ヒニル等の揮散（；１繊維、揮散性網等の
繊維状の気孔形成剤を炭素質原Ｎ’：ｌ中に分散させ、
加圧成型した後に焼成すればよい。気孔形成剤の添加量
は炭素質粉末に列して内削゛ζ３−６’Ｏ＋ｕｌ；％程
度がよいが、強度の高い多孔質炭素７１〜リツクスを得
るためには５〜３０１１１１％か好ましい。気孔形成剤
に粉状の物を用いるより繊維、１にの物を用いる方が連
続気孔率の高い多孔質炭素材料を得ることができる。気
孔形成の目的て添加する揮散性繊組は線径０．００５〜
３ｍｍ、長さ０．０５−２０ ｍ ｌ１１程度でよいが
、気孔の均一で良好な分散状態、高強度の多孔質炭素マ
ｉ・ワックスを得るため好ましくは線径０．０１〜０
、５ｍｍ、長さ０１〜５ｍ、ｍ程度かよい。In order to make the carbonaceous material 71~lyx porous, asocycloamide, helosobentamedylamine, polyethylene, polystyrene, phenolic resin,
Powder-like pore-forming agents such as acrylic resins, waxes, and various starches, and fibrous pore-forming agents such as nylon, 1-I7, acrylic, polyethylene, and hinyl chloride (;1 fibers, volatile networks, etc.) is dispersed in carbonaceous raw material N':l,
It may be fired after pressure molding. The amount of the pore-forming agent to be added is preferably about 1% by internal cutting in line with the carbonaceous powder, but 5 to 301111% is preferable in order to obtain porous carbon 71 to 11% with high strength. It is possible to obtain a porous carbon material with a higher continuous porosity by using fibers as the pore-forming agent than by using a powdered material. Volatile fibers added for the purpose of pore formation have a wire diameter of 0.005~
A wire diameter of 3 mm and a length of 0.05-20 ml is sufficient, but in order to obtain a porous carbon fiber with a uniform and good dispersion of pores and a high strength, the wire diameter is preferably 0.01-0.
, 5mm, length 01-5m, about m is good.
本発明の摺動集電用炭素材料は、多孔質炭素７１−リッ
クス中に網状の金属が含有されている。金網は平板、状
の連続した物が製作の容易さ、あるいは強度の均一性を
与えるため好ましいが、細断したチップ状のもの、円筒
状、角柱状なと立体的なものてあっても差し支えない。The sliding current collector carbon material of the present invention contains a mesh of metal in porous carbon 71-lix. It is preferable to use a continuous wire mesh in the form of a flat plate or a shape because it is easy to manufacture or provides uniform strength, but it is also possible to use a three-dimensional wire mesh such as a shredded chip shape, a cylinder, or a prismatic shape. do not have.
平板状の金網を用いる場合は、これを複数用いると共に
、平行に配列することか均一性を保つため有利である。When using flat plate-like wire meshes, it is advantageous to use a plurality of them and to arrange them in parallel to maintain uniformity.
この場合、金網の間隔は０．５〜５０ｍｍｆ’ｉｌ−度
とし、且つ平行に配列した金網間をところどころ導線で
接続するようにずれは、抵抗かより低下する。また摺動
集電用炭素材料の端面てあって、摺動面及び集電面には
金網か露出することが望ましい。また金網を斜めに配設
しても良いし、一つの金網に対し直角方向に配設しても
良い。金網を本発明て用いる金網の金属は、銅、銅合金
、ステンレス鋼、ブロンス、燐青銅、真鋳、ニッケルメ
ッキを施した鉄等でよいか、高強度か要求される場合に
はステンレス鋼か、低電気抵抗が要求される場合には銅
、銅合金が好ましい。In this case, the distance between the wire meshes is set to 0.5 to 50 mmf'il-degrees, and the wire meshes arranged in parallel are connected here and there with conductive wires, so that the resistance is further reduced. Further, it is desirable that the end face of the carbon material for sliding current collection has a wire mesh exposed on the sliding surface and the current collecting surface. Further, the wire mesh may be arranged diagonally or perpendicularly to one wire mesh. The metal of the wire mesh used in the present invention may be copper, copper alloy, stainless steel, bronze, phosphor bronze, brass, nickel-plated iron, etc., or stainless steel if high strength is required. , copper and copper alloys are preferred when low electrical resistance is required.
金網を多孔質炭素７１〜リツクス中に分散させる方法の
一例について説明する。第１図に示す如く、気孔形成剤
を分散さぜた炭素質粉末１の一定量を金型３に装入後、
金網２を敷き、更にその上に前記炭素質粉末を装入する
という方法を繰り返す。An example of a method for dispersing wire mesh into porous carbon 71 will be described. As shown in FIG. 1, after charging a certain amount of carbonaceous powder 1 in which a pore-forming agent is dispersed into a mold 3,
The method of laying the wire mesh 2 and charging the carbonaceous powder thereon is repeated.
金網の装入量は多いほと電気抵抗を下げ、強度をあける
ことかできるが、極端に装入量を多くすると製品の強度
が低下してしまう。このため金網の装入量は上記炭素質
粉末１００ｇにつき金網０．５〜１５ｇ、好ましくは２
〜１０ｇ程度かよい。The larger the amount of wire mesh charged, the lower the electrical resistance and the greater the strength, but if the amount charged is extremely large, the strength of the product will decrease. Therefore, the amount of wire mesh to be charged is 0.5 to 15 g, preferably 2 g, per 100 g of the above carbonaceous powder.
It's about ~10g.
その後加圧成型し、アルコン、窒素等の不活性カス雰囲
気下で８００〜１６００℃程度て焼成することにより、
例えば第２図に示すような多孔質炭素７１〜リツクス４
と金網２を交互に積層した摺動集電用炭素材料を得るこ
とかできる。この金網を含有した多孔質炭素７トリツク
スに金属を含浸することにより更に電気抵抗の低い高強
度摺動集電用炭素材料か得られる。含浸する金属は金網
に用いた金属よりも融点か低いものてあればどのような
ものてもよい。After that, it is pressure molded and fired at about 800 to 1600°C in an inert gas atmosphere such as alcon or nitrogen.
For example, porous carbon 71 to lithics 4 as shown in FIG.
It is possible to obtain a sliding current collector carbon material in which wire meshes 2 and 2 are alternately laminated. By impregnating the porous carbon 7 trix containing this wire mesh with metal, a high-strength sliding current collector carbon material with even lower electrical resistance can be obtained. The metal to be impregnated may be any metal as long as it has a melting point lower than that of the metal used for the wire mesh.
本発明の方法により作製された摺動集電材料は、従来の
炭素材料と比較して極端に電気抵抗が低く、自己潤滑性
に富み摺動させる際相手材の摩耗量を低減し、摺動音か
小さく、高強度の金属強化炭素系材料となる。連続した
金網を用いることにより摺動集電材料の端面に露出して
いる金属線は他の端面に露出している金属線と同一の金
網である限り必ず導通しており、電気抵抗の低下が確実
に期待できる。本発明の摺動集電材料は金網をはさむ多
孔質炭素マＩ〜リックスの層は一体化されていることが
必要である。この部分の結合か弱いと摺動集電材料の全
体の強度か極端に低下してしまう。The sliding current collector material produced by the method of the present invention has extremely low electrical resistance compared to conventional carbon materials, has excellent self-lubricating properties, reduces the amount of wear on the mating material during sliding, and It is a low-noise, high-strength metal-reinforced carbon-based material. By using a continuous wire mesh, the metal wire exposed on the end face of the sliding current collector material is always conductive as long as it is the same wire mesh as the metal wire exposed on the other end face, and the electrical resistance decreases. You can definitely expect it. In the sliding current collecting material of the present invention, the layers of porous carbon matrix sandwiching the wire mesh must be integrated. If the bond in this part is weak, the overall strength of the sliding current collector material will be extremely reduced.
すなわち金網の目の荒さが細かすきなり線径が太いと、
焼成時に金網の」１下にある炭素質材料層と炭素質材料
層とか、金属と炭素材料との熱収縮率、熱膨張率の差に
よって金網のところで亀裂を生じ、炭素−炭素層の層間
剥離を起こすという現象か観察された。そのため本発明
に用いる金網としては、金網を構成している線材の直径
か０．０１〜３．０ｍｍ、開口間隔は線材の直径の５倍
以上の金網を用いることか望ましい。なお、本発明でい
う金網の開口間隔とは、金網を構成する線材の中心線の
間隔をいう。開口間隔の上限は無いと考えてよいが、開
口間隔を余り大きくとると導入できる金網の量か減少し
てしまう。このため余り開口間隔を大きくとると金網を
導入するメリッ１〜かなくなってしすうので、開口間隔
を変化させ導入する金属の量をコントロールし、電気抵
抗を所望の値に調整するようにずれはよい。In other words, if the coarseness of the wire mesh is fine and the wire diameter is thick,
During firing, cracks occur in the wire mesh due to the difference in thermal contraction and thermal expansion coefficients between the carbonaceous material layer underneath the wire mesh and the metal and carbon material, resulting in delamination of the carbon-carbon layer. It was observed that this phenomenon occurred. Therefore, it is preferable that the wire mesh used in the present invention has a diameter of 0.01 to 3.0 mm and an opening interval of at least 5 times the diameter of the wire rod. In addition, the opening interval of the wire mesh as used in the present invention refers to the interval between the center lines of the wires that constitute the wire mesh. Although there is no upper limit to the gap between the openings, if the gap between the openings is too large, the amount of wire mesh that can be introduced will be reduced. For this reason, if the gap between the openings is made too large, the advantage of introducing a wire mesh will be lost. Therefore, the gap between the openings can be changed to control the amount of metal introduced and adjust the electrical resistance to the desired value. good.
本発明における摺動集電用炭素材料は、炭素質マトリッ
クスに金属が含浸されている上、金網を含有しているた
めに電気抵抗は黒鉛を下回っており、必ずしも多孔質炭
素７トリツクスを黒鉛化して電気抵抗を下げる必要はな
く、焼成温度は９００〜１４００℃程度でも所望の電気
抵抗値とすることが出来る。しかし焼成温度を導入する
金属の融点よりも余り高くし過きると、焼成中に金網か
溶融し内部て断線を生することかある。この様な状態が
進むと挟み込んな金属の電気伝導性か極端に低下するた
めに、電気抵抗を低下させるという初期の目的を達成す
ることはてきず、好ましくない。そのなめ、金網の素層
の融点を若干下回る温度以下で焼成すると良い。The carbon material for sliding current collection in the present invention has a carbonaceous matrix impregnated with metal and also contains a wire mesh, so the electrical resistance is lower than graphite, and it is not necessary to graphitize the porous carbon 7 trix. There is no need to lower the electrical resistance by heating, and a desired electrical resistance value can be obtained even when the firing temperature is about 900 to 1400°C. However, if the firing temperature is set too high above the melting point of the metal introduced, the wire gauze may melt during firing, causing internal wire breakage. If such a state progresses, the electrical conductivity of the sandwiched metal will drop drastically, making it impossible to achieve the initial objective of lowering the electrical resistance, which is not preferable. Therefore, it is best to fire at a temperature slightly lower than the melting point of the wire mesh base layer.
本発明による摺動集電炭素材料は、第２図に示すように
金１１１２Ｊ層と直角方向の多孔質炭素７１〜リツクス
４中に金ｍ２か存在するへ面を摺動面に、反対側の８面
を端子に接続することによって、その比抵抗値を極端に
下けることが出来る。また摺動する際の摺動面の方向は
摺動面と集電端子接続面とか金網の平面に垂直な方向と
なるようにずれは問題はないが、摺動面」二に出現する
線材の数を絶えず一定に保つ必要があれは、金網を構成
している線材か摺動面に対して平行となるような方向は
避Ｇ−ｊか方かよい。金網の装入量を多くし電気抵抗を
下げ強度を高めるためには金属線材に屈曲をす。As shown in FIG. 2, the sliding current collector carbon material according to the present invention has a surface where gold m2 is present in porous carbon 71 to lithium 4 in the direction perpendicular to the gold 1112J layer, and a sliding surface on the opposite side. By connecting the 8 sides to the terminals, the specific resistance value can be extremely lowered. In addition, the direction of the sliding surface when sliding is perpendicular to the sliding surface and the current collector terminal connection surface or the plane of the wire mesh, so there is no problem with misalignment, but the wire rod that appears on the sliding surface. If it is necessary to keep the number constant, it is better to avoid the direction G-j that is parallel to the sliding surface of the wire making up the wire mesh. In order to increase the amount of wire mesh charged, lower the electrical resistance, and increase the strength, the metal wire is bent.
えておきこれで金網を作るか、金網全体を屈曲させてお
くことも有効である。It is also effective to make a wire mesh using this material in advance, or to bend the entire wire mesh.
本発明による摺動集電用炭素材料は従来の焼結金属と比
較すると、炭素材料の持つ良好な自己潤滑性を有するた
め特に相手摺動材「１にお（づろ摩耗を改善する特性に
優れ、摺動音も極めて低く、軽量であるという特徴を有
している。また本発明による摺動集電用炭素材料（Ｊ従
来の炭素系摺動集電材料と比較すると、低電気抵抗の金
網、含浸金属を用いることによりその電気抵抗を極端に
低下さぜることがてきる、断面部分ては金属か微細かつ
均一に７１へリックス中に点在しているため耐アーク性
に優れる、等の利点を持つ。加えて挟み込んな金属によ
り脆性破壊に対して強く、折損しても金属部分てつなが
るため飛散することの少ない安全な摺動集電材料といえ
る。Compared to conventional sintered metals, the carbon material for sliding current collectors according to the present invention has excellent self-lubricating properties of carbon materials, so it has a characteristic that improves the wear of the mating sliding material. The carbon material for sliding current collectors according to the present invention (J) has the characteristics of low electrical resistance and extremely low sliding noise when compared with conventional carbon-based sliding current collector materials. By using wire mesh or impregnated metal, the electrical resistance can be extremely reduced, and the cross section has excellent arc resistance because the metal is finely and uniformly scattered throughout the 71 helix. In addition, the sandwiched metal makes it resistant to brittle fracture, and even if it breaks, the metal parts are connected, so it can be said to be a safe sliding current collector material that is less likely to scatter.
本発明による摺動集電用炭素材料はパンククラフ摺板以
外にも集電材料として電動機用集電フラジ算法・く応用
か期待てきる。The carbon material for sliding current collectors according to the present invention is expected to be applied as a current collecting material in addition to Punkclough sliding plates, such as the current collecting flage algorithm for electric motors.
以下に、本発明の実施例を示す。 Examples of the present invention are shown below.
実施例１
平均粒径］］μｍに粉砕した自己焼結性生コークスに気
孔形成剤として３Ｆ均粒径３０μｍのワックスを１．５
ｉｕｔ％添加し、線径０．２８ｍｍ、開口間隔５．０ｍ
ｍの銅製の金網を生コークス１．００ｇに套１き銅網５
、５ ｇの割合で挟み込み］、２００ｋｇ／ｃｍ２て
加圧成型した後、］ＯＯＯ’Ｃで焼成した。ひきつつき
Ｏ，］、Ｔｏｒｒ下、８００°Ｃて溶融させｆ、、：
Ｃｕ−３ｎ＠金（５０： ５０）に前述の焼成体を浸し
３０ｋｇ／ｃ＋ｎ２まて窒素カスて加圧し金属含浸を行
い摺動集電材料を作製した。Example 1 Average particle size]] 1.5 μm of 3F wax with an average particle size of 30 μm was added as a pore-forming agent to self-sintering raw coke crushed to μm.
iut% added, wire diameter 0.28mm, opening interval 5.0m
Copper wire mesh 5 m with 1.00 g of raw coke
, 5 g] and pressure molded at 200 kg/cm 2 , and then fired at ]OOO'C. twitching O,], melted at 800°C under Torr, f,:
The above-mentioned fired body was immersed in Cu-3n@gold (50:50) and pressurized with nitrogen gas at 30 kg/c+n2 to impregnate metal, thereby producing a sliding current collector material.
実施例２
実施例１て用いた気孔形成剤を添加した原料生コークス
の代わりに、気孔形成剤を添加した原料生コークスと平
均粒径３０μｍの銅粉７；３ （重量比）の割合で混合
したものをマトリックスに用いる以外は実施例１と同様
の方法て摺動集電材料を作製した。Example 2 Instead of the raw raw coke added with a pore forming agent used in Example 1, raw raw coke added with a pore forming agent was mixed with copper powder having an average particle size of 30 μm at a ratio of 7:3 (weight ratio). A sliding current collector material was produced in the same manner as in Example 1, except that the obtained material was used as a matrix.
実施例３
実施例１て用いた銅製金網の代わりに、線径、開口間隔
が同一のステンレス製金網を用いる以外は実施例１と同
様の方法で摺動集電材料を作製した。Example 3 A sliding current collector material was produced in the same manner as in Example 1, except that a stainless steel wire mesh having the same wire diameter and opening interval was used instead of the copper wire mesh used in Example 1.
実施例４
実施例１て用いた気孔形成剤の代わりに、アクリル樹脂
粉末を用いる以外は実施例１と同様の方法て摺動集電材
料を作製した。Example 4 A sliding current collector material was produced in the same manner as in Example 1 except that acrylic resin powder was used instead of the pore forming agent used in Example 1.
実施例５
実施例１て用いた銅製金網の代わりに、線径０．５３ｍ
ｍ、開口間隔１０．０ｍｍの銅製金網を用いる以外は実
施例］と同様の方法て摺動集電材料を作製した。Example 5 Instead of the copper wire mesh used in Example 1, a wire diameter of 0.53 m was used.
A sliding current collector material was produced in the same manner as in Example] except that a copper wire mesh with an opening interval of 10.0 mm was used.
比較例１
平均粒径１１７１＋ｎに粉砕した自己焼結性生コークス
を１２００ｋｇ／ ｃｍ２で加圧成型した後、１０００
’Ｃて焼成し摺動集電材料を作製しな。Comparative Example 1 Self-sintering raw coke pulverized to an average particle size of 1171+n was pressure-molded at 1200 kg/cm2, and then
The sliding current collector material is produced by firing at 'C.
比較例２
平均粒径１］μｍに粉砕した自己焼結性生コークスと平
均粒径３０μ川の銅粉を７３（重量比）の割合て混合し
比較例１と同様の方法で成型、焼成し摺動集電材料を得
た。Comparative Example 2 Self-sintering raw coke pulverized to an average particle size of 1 μm and copper powder with an average particle size of 30 μm were mixed at a ratio of 73 (weight ratio), and molded and fired in the same manner as Comparative Example 1. A sliding current collecting material was obtained.
比較例３
平均粒径３０μｍのワックスを気孔形成剤として］、５
ｕ＋Ｌ％添加した平均粒径１１μｍに粉砕した自己焼結
性生コークスを１２００ｋｇ／ｃｍ２で加圧成型した後
、１１００℃で焼成した。ひきつづき０．ＩＴｏｒｒ下
、８００℃で溶融させたＣｕ−８ｎ合金（５０： ５０
）に前述の焼成体を浸し３０ｋｇ７ｃｍ２まで窒素カス
で加圧し金属含浸を行い摺動集電材料を作製した。Comparative Example 3 Wax with an average particle size of 30 μm as a pore forming agent], 5
Self-sintering raw coke pulverized to an average particle size of 11 μm and added with u+L% was press-molded at 1200 kg/cm 2 and then fired at 1100°C. Continued 0. Cu-8n alloy (50:50
) and pressurized with nitrogen gas to 30 kg and 7 cm 2 to impregnate metal, thereby producing a sliding current collector material.
前述の実施例、比較例で準備した摺動集電用炭素材料の
シ・ヤルピー衝撃値と電気比抵抗値を測定した結果をま
とめて下表に示した。表から明らかなように本発明の方
法によって得られた摺動集電用炭素材料は従来の炭素材
料に比べて低電気抵抗を有し耐衝撃性も高いことがわか
る。The results of measuring the Syalpy impact value and electrical specific resistance value of the carbon materials for sliding current collectors prepared in the above-mentioned Examples and Comparative Examples are summarized in the table below. As is clear from the table, the sliding current collector carbon material obtained by the method of the present invention has lower electrical resistance and higher impact resistance than conventional carbon materials.
本発明によれば、軽量、良潤滑性、良好な耐アーク性等
の炭素系摺動集電材料の特徴を継承し、かつ低電気抵抗
を有し耐衝撃性も良好なきわめて有用な摺動集電用炭素
材料を得ることができ、極めて有用である。According to the present invention, an extremely useful sliding material that inherits the characteristics of carbon-based sliding current collector materials such as light weight, good lubricity, and good arc resistance, and also has low electrical resistance and good impact resistance. It is possible to obtain a carbon material for current collection, which is extremely useful.
第１図は成形時の工程を、第２図は本発明の方法によっ
て製造された摺動集電用炭素材料を示す。
１・・炭素質粉末、 ２・金網、
３・金型、
４・・・多孔質炭素７１−ワックス。
（Ｎ ＼ｊFIG. 1 shows the process during molding, and FIG. 2 shows the carbon material for sliding current collector manufactured by the method of the present invention. 1. Carbonaceous powder, 2. Wire mesh, 3. Mold, 4. Porous carbon 71-wax. (N \j
Claims (3)
配設し、加圧成型した後焼成し、その後焼成した際に生
する孔に金属を含浸することを特徴とする摺動集電用炭
素材料の製造方法。(1) A sliding device characterized by disposing a wire mesh in carbonaceous powder in which a pore-forming agent is dispersed, press-molding and firing, and then impregnating metal into the pores created during firing. A method for producing a carbon material for current collection.
に積層し加圧成型した後焼成し、その後焼成した際に生
する孔に金属を含浸することを特徴とする摺動集電用炭
素材料の製造方法。(2) A sliding current collector characterized by alternately laminating carbonaceous powder in which a pore-forming agent is dispersed and wire mesh, press-molding and firing, and then impregnating metal into the pores created during firing. Method for manufacturing carbon materials for use.
末を用いる請求項１または２記載の摺動集電用炭素材料
の製造方法。(3) The method for producing a carbon material for a sliding current collector according to claim 1 or 2, wherein carbonaceous powder is used which is a mixture of metal powder and a pore-forming agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9453288A JPH01270571A (en) | 1988-04-19 | 1988-04-19 | Production of carbon material for sliding and current collection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9453288A JPH01270571A (en) | 1988-04-19 | 1988-04-19 | Production of carbon material for sliding and current collection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01270571A true JPH01270571A (en) | 1989-10-27 |
Family
ID=14112942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9453288A Pending JPH01270571A (en) | 1988-04-19 | 1988-04-19 | Production of carbon material for sliding and current collection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01270571A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6183667B1 (en) * | 1999-03-30 | 2001-02-06 | Railway Technical Research Institute | Titanium-and copper-containing carbon composite material and process for the production thereof |
| WO2005047051A1 (en) * | 2003-11-11 | 2005-05-26 | Morganite Electrical Carbon Limited | Composite collectors |
| DE102004006589B4 (en) * | 2004-02-10 | 2006-09-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Continuous production of carbon abrasive strips with a small amount of thin metallic conductors |
| US20190337860A1 (en) * | 2018-05-03 | 2019-11-07 | Doosan Fuel Cell America, Inc. | Method of making a porous fuel cell component |
-
1988
- 1988-04-19 JP JP9453288A patent/JPH01270571A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6183667B1 (en) * | 1999-03-30 | 2001-02-06 | Railway Technical Research Institute | Titanium-and copper-containing carbon composite material and process for the production thereof |
| WO2005047051A1 (en) * | 2003-11-11 | 2005-05-26 | Morganite Electrical Carbon Limited | Composite collectors |
| DE102004006589B4 (en) * | 2004-02-10 | 2006-09-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Continuous production of carbon abrasive strips with a small amount of thin metallic conductors |
| US20190337860A1 (en) * | 2018-05-03 | 2019-11-07 | Doosan Fuel Cell America, Inc. | Method of making a porous fuel cell component |
| US10689301B2 (en) * | 2018-05-03 | 2020-06-23 | Doosan Fuel Cell America, Inc. | Method of making a porous fuel cell component |
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