JPS6348152B2 - - Google Patents
Info
- Publication number
- JPS6348152B2 JPS6348152B2 JP14654179A JP14654179A JPS6348152B2 JP S6348152 B2 JPS6348152 B2 JP S6348152B2 JP 14654179 A JP14654179 A JP 14654179A JP 14654179 A JP14654179 A JP 14654179A JP S6348152 B2 JPS6348152 B2 JP S6348152B2
- Authority
- JP
- Japan
- Prior art keywords
- metal
- carbon fiber
- coated carbon
- base
- coated
- 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
Links
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 56
- 239000004917 carbon fiber Substances 0.000 claims description 56
- 229910052751 metal Inorganic materials 0.000 claims description 49
- 239000002184 metal Substances 0.000 claims description 49
- 239000000835 fiber Substances 0.000 claims description 10
- 238000012856 packing Methods 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 238000009792 diffusion process Methods 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 33
- 238000003825 pressing Methods 0.000 description 12
- 238000000576 coating method Methods 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000012298 atmosphere Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 238000007733 ion plating Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Description
【発明の詳細な説明】
本発明は電気機器の給電、集電用の高性能電機
ブラシに関する。更に詳しくは炭素繊維を金属で
被覆して通電能力を高めた電機ブラシに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a high-performance electric brush for power supply and current collection of electric equipment. More specifically, the present invention relates to an electric brush in which carbon fiber is coated with metal to increase current carrying capacity.
従来、電機ブラシは黒鉛や黒鉛に金属粉を混ぜ
たものの塊が用いられてきた。しかし黒鉛質はも
ろいという欠点があり、更に最近の電動機等の進
歩により大電流を通せる材質が要求される様にな
り、炭素繊維を使用したブラシが提案されてい
る。 Conventionally, electric brushes have been made of graphite or a mass of graphite mixed with metal powder. However, graphite has the disadvantage of being brittle, and with the recent advances in electric motors and the like, there has been a demand for materials that can conduct large currents, and brushes using carbon fiber have been proposed.
炭素繊維は通電性で可撓性があり、これを電機
ブラシに用いれば従来の黒鉛塊製のものに比し、
通電能力、摺動性等において優れた性質を示す。
炭素繊維を金属で被覆すれば通電能力を更に高め
ることができる。 Carbon fiber is electrically conductive and flexible, and when used in electrical brushes, compared to conventional graphite blocks,
Shows excellent properties in terms of current carrying capacity, sliding properties, etc.
If carbon fibers are coated with metal, the current carrying capacity can be further increased.
本発明の目的は通電能力の高いブラシを提供す
ることにある。 An object of the present invention is to provide a brush with high current carrying capacity.
炭素繊維の可撓性を利用した電機ブラシは多点
接触で安定した通電能力を持つが、その為には、
多数の炭素繊維のそれぞれが保持体に通電性を持
つて保持され、他端が自由に動き得る分繊状態に
なければならない。炭素繊維をこの様な状態とす
る為に、繊維束を接着剤で固定したり、金属板等
でかしめて固定する方法が採られていた。しか
し、これらの方法では、通電能力を低下させた
り、繊維が抜けたり折れたりする問題があつた。 Electric brushes that utilize the flexibility of carbon fibers have the ability to conduct electricity stably through multi-point contact, but in order to do so,
Each of the large number of carbon fibers must be held in a holder with electrical conductivity, and the other end must be in a split state where it can move freely. In order to bring the carbon fibers into such a state, methods have been adopted in which the fiber bundles are fixed with an adhesive or caulked with a metal plate or the like. However, these methods have problems in that the current carrying capacity is reduced and the fibers come off or break.
本発明においては金属被覆炭素繊維を用い、そ
の通電能力を炭素繊維より数段高め、保持体との
接合は金属被覆炭素繊維を一体化した部分（基
部）との直接又は間接的接合をもつて行う。 In the present invention, metal-coated carbon fiber is used, its current carrying capacity is several steps higher than that of carbon fiber, and the connection to the holder is made by direct or indirect bonding to the part (base) where the metal-coated carbon fiber is integrated. conduct.
この発明にいう炭素繊維とは、一般にいう高弾
性炭素繊維、高強度炭素繊維、低弾性炭素繊維と
を総称するものである。被覆する金属は金、銀、
銅、アルミニウム、亜鉛、錫、ニツケル、クロム
及びこれらの合金が用いられる。中でも銅、アル
ミニウム、銀及びこれらの合金が好ましい。皮膜
の厚さは0.1〜3μが適当である。金属を皮覆する
方法としては、電気メツキ、化学メツキ、化学蒸
着、イオンプレーテイング等があるが、各炭素繊
維夫々が均一に被覆され、しかも金属被膜が炭素
繊維に強固に接着している点でイオンプレーテイ
ングによるのが特に好ましい。高真空蒸着、溶射
等の金属被覆方法は、被膜形成が不均一であるた
め好ましくなく、溶浸によつて金属被覆した場合
は被覆の薄いものが得られず好ましくない。 The carbon fiber referred to in this invention is a general term for high modulus carbon fiber, high strength carbon fiber, and low modulus carbon fiber. The metal to be coated is gold, silver,
Copper, aluminum, zinc, tin, nickel, chromium and alloys thereof are used. Among these, copper, aluminum, silver, and alloys thereof are preferred. The appropriate thickness of the film is 0.1 to 3μ. Methods for coating metal include electroplating, chemical plating, chemical vapor deposition, and ion plating, but each carbon fiber is coated uniformly, and the metal coating is firmly adhered to the carbon fiber. Particularly preferred is ion plating. Metal coating methods such as high vacuum evaporation and thermal spraying are not preferred because the film formation is non-uniform, and metal coating by infiltration is not preferred because a thin coating cannot be obtained.
次に本発明の電機ブラシを図面によつて説明す
る。 Next, the electric brush of the present invention will be explained with reference to the drawings.
第１図は本発明電機ブラシの断面を示すもの
で、金属被覆炭素繊維１の一体化接合部分（基
部）５と分繊部分（先端部）６とからなり、基部
５は導電性接着剤４で保持体２と接続している。
基部５と分繊部６とに金属被覆炭素繊維は連続し
ており、又基部５と分繊部６との境界域は明確と
はせず、部分的に接している中間領域を設けるこ
とが好ましい。これは、低伸度の金属被覆炭素繊
維の折損を防ぐためである。 FIG. 1 shows a cross section of the electric brush of the present invention, which consists of an integrated joint part (base part) 5 of metal-coated carbon fiber 1 and a split part (tip part) 6, and the base part 5 is made of a conductive adhesive 4 It is connected to the holding body 2 at.
The metal-coated carbon fibers are continuous between the base 5 and the splitting section 6, and the boundary area between the base 5 and the splitting section 6 is not clear, and an intermediate region where they are partially in contact may be provided. preferable. This is to prevent breakage of the metal-coated carbon fiber with low elongation.
この電機ブラシの基部の接合はホツトプレスに
よるが、その方法を具体例によつて説明する。 The base of this electric brush is joined by hot pressing, and the method will be explained using a specific example.
第２図は、金属被覆炭素繊維をホツトプレス金
型に入れた時の状態を示す断面図である。 FIG. 2 is a cross-sectional view showing a state in which the metal-coated carbon fiber is placed in a hot press mold.
図中７は金属被覆炭素繊維で、その上下各面に
ステンレス等の薄板８を配し、押圧板９，１０間
に仕込まれる。押圧板９，１０は一部が高くなつ
ており、両者を重ねたときに全面は接触しないよ
う、空隙を有する構造とする。この間にて金属被
覆炭素繊維を圧縮すると、凸部Ａが強くプレスさ
れ繊維表面の金属材料が圧着され金属被覆炭素繊
維相互が接合する。押圧板の凹部Ｂでは、金属被
覆炭素繊維７はプレスによつてある程度押しつけ
られるが凸部Ａの様に圧着はされず分繊状態で残
る。 In the figure, reference numeral 7 denotes a metal-coated carbon fiber, with thin plates 8 made of stainless steel or the like arranged on each of its upper and lower surfaces, and placed between pressing plates 9 and 10. The press plates 9 and 10 are partially elevated and have a structure with a gap so that when they are stacked, their entire surfaces do not come into contact. When the metal-coated carbon fibers are compressed during this time, the convex portions A are strongly pressed, the metal material on the fiber surface is crimped, and the metal-coated carbon fibers are bonded to each other. In the concave portion B of the pressing plate, the metal-coated carbon fiber 7 is pressed to some extent by the press, but unlike the convex portion A, it is not pressed and remains in a separated state.
このような状態とするためにプレス温度は被覆
金属炭素繊維の融点より低く、被覆金属の融点の
絶対温度の２分の１より高い温度が好ましい。 In order to achieve this state, the pressing temperature is preferably lower than the melting point of the coated metal carbon fiber and higher than half the absolute temperature of the melting point of the coated metal.
プレス温度が融点以上になると被覆金属が溶解
するため分繊部分が残らず、一部融着が起り目的
とするものが得られない。又絶対温度が上記の下
限温度より低いと接合すべき基部の圧着が充分で
ない。 When the pressing temperature exceeds the melting point, the coating metal melts, so no split portion remains, and some fusion occurs, making it impossible to obtain the desired product. Furthermore, if the absolute temperature is lower than the above-mentioned lower limit temperature, the bases to be joined will not be sufficiently crimped.
プレス圧力もプレス温度と関連しながら変化さ
せ得るが、その圧力は１Kg／cm2〜2000Kg／cm2の範
囲であり、被覆金属の融点に近い温度では１Kg／
cm2程度の圧力でよく、プレス温度が低くなるにつ
れて高い圧力が必要となる。しかしながら圧力が
2000Kg／cm2以上になると金属被覆炭素繊維の被断
が起りやすく好ましくなく、又実用的でない。 The pressing pressure can also be varied in relation to the pressing temperature, but the pressure is in the range of 1Kg/cm 2 to 2000Kg/cm 2 , and 1Kg/cm 2 at temperatures close to the melting point of the coating metal.
A pressure of about cm 2 is sufficient, and as the pressing temperature decreases, higher pressure is required. However, the pressure
If it exceeds 2000 kg/cm 2 , the metal-coated carbon fibers are likely to break, which is undesirable and impractical.
プレス雰囲気は空気中でもよいが金属被膜の酸
化を防ぐ意味で真空又はアルゴン等の不活性ガス
又は還元性ガス雰囲気が好ましい。接合部の充填
密度を上げる目的からは特に真空中が好ましい。 The press atmosphere may be air, but vacuum or an inert gas atmosphere such as argon or a reducing gas atmosphere is preferable in order to prevent oxidation of the metal coating. For the purpose of increasing the packing density of the joint, vacuum is particularly preferred.
これらプレス条件においてしかも押圧板の形状
が本発明ブラシを作成するための重要な条件とな
る。即ち押圧板の凸部Ａ，A′間の距離と凹部Ｂ，
B′間の距離の比を適度にとることで基部となる
一部のみ接合することが可能となる。 Under these pressing conditions, the shape of the pressing plate is an important condition for producing the brush of the present invention. That is, the distance between the convex parts A and A' of the pressing plate and the concave part B,
By setting an appropriate distance ratio between B′, it is possible to join only a portion that will become the base.
広部と狭部の比はＢ−B′／Ａ−A′：1.2〜3.0、
好ましくは1.5〜2.5がよい。 The ratio of wide part to narrow part is B-B'/A-A': 1.2 to 3.0,
Preferably 1.5 to 2.5.
押圧板の凸部Ａから凹部へは傾斜をもつて続い
ておりその傾斜角度は５〜60度、好ましくは10〜
45度である。傾斜角度が小さすぎると金属被覆炭
素繊維が独立し分繊している安定な部分が短くな
り又傾斜角度が大きすぎると金属被覆炭素繊維の
折損が起る。金属被覆炭素繊維の折損を防ぐため
の傾斜部の肩は適度の曲率半径を持たせるのが好
ましい。 The convex part A of the press plate continues to the concave part with an inclination, and the inclination angle is 5 to 60 degrees, preferably 10 to
It is 45 degrees. If the inclination angle is too small, the stable portion where the metal-coated carbon fibers are separated and separated becomes short, and if the inclination angle is too large, the metal-coated carbon fibers will break. It is preferable that the shoulder of the inclined portion has an appropriate radius of curvature in order to prevent the metal-coated carbon fiber from breaking.
第２図８のステンレス製薄板は、この目的を更
に進めるために効果がある。 The stainless steel sheet of FIG. 28 is effective to further this objective.
以上の如くして得られたブラシは、金属被覆炭
素繊維が相互に接合された基部と金属被覆炭素繊
維が分繊されている先端部の切断面を平面仕上げ
た後第１図の様に導電性接着剤で保持体と接合す
るか又は保持体と拡散接合する。 The brush obtained as described above has a base portion where the metal-coated carbon fibers are mutually bonded and a tip portion where the metal-coated carbon fibers are separated. It is bonded to the holder using a adhesive or diffusion bonded to the holder.
本発明による電機ブラシは第１図の如くなる
が、その特性として次のことが挙げられる。 The electric brush according to the present invention is shown in FIG. 1, and its characteristics include the following.
基部と分繊部分と結合及び基部と保持体との接
合が完全であるのでブラシがよく固定され、安定
して使用できる。保持体との接触が金属被覆炭素
繊維相互が接合した基部、すなわち密度の高い部
分で行われ、しかも金属被覆した炭素繊維と連続
しているので大電流を流すことが可能である。金
属被覆炭素繊維相互が接合し基部を形成している
ため、金属被覆炭素繊維が脱落したり、折れ難
い。 Since the connection between the base and the separating part and the connection between the base and the holder are perfect, the brush is well fixed and can be used stably. Contact with the holder is made at the base where the metal-coated carbon fibers are joined to each other, that is, at the high-density part, and since it is continuous with the metal-coated carbon fibers, it is possible to flow a large current. Since the metal-coated carbon fibers are joined together to form the base, the metal-coated carbon fibers are unlikely to fall off or break.
これらの性能を達成するためには、複合体化さ
れた部分の充填密度を90〜100％にし、各金属被
覆炭素繊維が独立している部分（分繊部分）の充
填密度を30〜90％好ましくは40〜70％にするのが
よい。 In order to achieve these performances, the packing density of the composite part should be 90 to 100%, and the packing density of the part where each metal-coated carbon fiber is independent (separated part) should be 30 to 90%. Preferably it is 40-70%.
ここでいう充填密度とは金属被覆炭素繊維束を
加熱圧着して空隙のない完全な炭素繊維／金属の
複合材料とした時の密度を100％とし、この複合
材料中の空隙の割合を100％より差引いた値をい
う。従つて空隙率50％とは、その空間で金属被覆
炭素繊維が、その50％の体積を占め、残部が空隙
であることをいう。 The packing density here refers to the density when a metal-coated carbon fiber bundle is heated and compressed to form a complete carbon fiber/metal composite material with no voids, and the percentage of voids in this composite material is 100%. This is the value subtracted from that amount. Therefore, a porosity of 50% means that the metal-coated carbon fibers occupy 50% of the volume of the space, with the remainder being voids.
「各金属被覆炭素繊維が独立している」或は
「分繊」とは金属被覆炭素繊維が金属の融着等で
固化していない、夫々の金属被覆炭素繊維がハケ
状に引揃えられていることを意味し、例えば特開
昭53−66831号公報記載のようなイオンプレーテ
イングによつて得られた接着点を持つたシート状
物もそのまゝで各金属被覆炭素繊維が独立してい
る或は分繊状態といえる。 "Each metal-coated carbon fiber is independent" or "separated" means that the metal-coated carbon fibers are not solidified by metal fusion, etc., but are arranged in a brush-like shape. This means that, for example, in a sheet-like material with adhesive points obtained by ion plating as described in JP-A-53-66831, each metal-coated carbon fiber can be separated independently. It can be said to be in a state of splitting.
本発明によつて得られた電気ブラシはそのまゝ
使用しても以上述べた如き効果を示すが、例えば
ごくわずかの金属被覆炭素繊維ケバが飛んでも短
絡の虞れがある場所で使用する際は、特に「各金
属被覆炭素繊維が独立している部分」に適度の樹
脂を付与して可撓性を失なわずに切断繊維の飛散
を防止することも可能である。 The electric brush obtained by the present invention exhibits the above-mentioned effects even when used as is, but for example, when used in a place where there is a risk of short circuit even if a small amount of metal-coated carbon fiber fluff flies off. It is also possible to prevent the cut fibers from scattering without losing flexibility by applying an appropriate amount of resin, especially to "the portions where each metal-coated carbon fiber is independent."
以上、この発明の概要について説明したが、実
施例に基づいて更に詳細に説明する。 The outline of the present invention has been described above, and it will be described in more detail based on examples.
実施例 １
公開公報昭53−66831実施例１によつて得られ
た直径９ミクロン、アルミニウム被膜4.0ミクロ
ン、繊維数6000本から成るアルミニウム被覆炭素
繊維シート（平均厚さ40ミクロン）200枚を幅30
mm、長さ50mmの第２図に示される様な金型に仕込
んだ。アルミニウム被覆炭素繊維シート層の上下
には0.5mmのステンレス薄板を配した。この押圧
板間の距離は第２図の凸部Ａ−A′の距離より凹
部Ｂ−B′の距離は、６mm広く、ＡからＢへの傾
斜角度は30゜である。Example 1 200 aluminum-coated carbon fiber sheets (average thickness 40 microns) consisting of a diameter of 9 microns, an aluminum coating of 4.0 microns, and a number of fibers of 6000 obtained according to Example 1 of Publication No. 53-66831 (average thickness 40 microns) were made into a sheet with a width of 30 microns.
It was placed in a mold with a length of 50 mm as shown in Figure 2. 0.5mm thin stainless steel plates were placed above and below the aluminum-coated carbon fiber sheet layer. The distance between the pressing plates is 6 mm wider from the concave portion B-B' than the convex portion A-A' in FIG. 2, and the inclination angle from A to B is 30 degrees.
この金型を真空ホツトプレス中に配置し、１×
10-4torrまで排気後、420℃、500Kg／cm2で10分間
プレスした。得られたものは接合基部の厚さ７
mm、長さ20mm、金属被覆炭素繊維が独立している
部分の厚さ13mm、長さ約25mm、傾斜部の長さ約５
mmのブラシであつた。このブラシの接合基部の充
填密度は98％であり、金属被覆炭素繊維が独立し
ている部分（分繊部分）の充填密度は約50％であ
つた。 Place this mold in a vacuum hot press and press 1×
After evacuating to 10 -4 torr, it was pressed at 420° C. and 500 Kg/cm 2 for 10 minutes. The thickness of the joint base is 7.
mm, length 20mm, thickness of the part where the metal-coated carbon fiber is independent is 13mm, length approx. 25mm, slope part length approx. 5mm
It was hot with a mm brush. The packing density of the joint base of this brush was 98%, and the packing density of the part where the metal-coated carbon fibers were independent (divided part) was about 50%.
このブラシの両端を平面に仕上げ、最終の長さ
が30mmになる様にした。これを鋼製の第１図に見
られる様なリード線付保持体に熱硬化銀接着剤に
よつて電機ブラシを作成した。 Both ends of this brush were finished flat so that the final length was 30mm. An electric brush was made from this by using a thermosetting silver adhesive on a steel holder with lead wires as shown in FIG.
この電機ブラシを用いて電流密度50A／cm2の大
電流を流すことが可能であつた。 Using this electric brush, it was possible to flow a large current with a current density of 50 A/cm 2 .
実施例 ２
直径７ミクロン、12000本よりなる炭素繊維束
を約10cm巾に拡げたものを真空槽内に配し、１×
10-4torr以下まで真空排気後、アルゴンガスを導
入し、２×10-2torrのアルゴン雰囲気で繊維電圧
−1.0KVで１分間プラズマエツチング後、この状
態を保持したまま鋼を高周波加熱ルツボより蒸発
させ、イオンプレーテイングを行なつた。得られ
た鋼被覆炭素繊維は鋼被膜層が1.0ミクロンのも
のであつた。Example 2 A carbon fiber bundle consisting of 12,000 carbon fibers with a diameter of 7 microns spread out to a width of about 10 cm was placed in a vacuum chamber, and
After evacuation to below 10 -4 torr, argon gas was introduced and plasma etching was performed for 1 minute at a fiber voltage of -1.0 KV in an argon atmosphere of 2 x 10 -2 torr, and the steel was placed in a high-frequency heating crucible while maintaining this state. It was evaporated and ion plating was performed. The obtained steel-coated carbon fiber had a steel coating layer of 1.0 micron.
この鋼被覆炭素繊維を実施例１と同じ形の金型
内に積層し、アルゴンガス雰囲気中、600℃、100
Kg／cm2で10分間ホツトプレスした。 This steel-coated carbon fiber was laminated in a mold of the same shape as in Example 1, and heated at 600℃ and 100℃ in an argon gas atmosphere.
Hot pressed at Kg/cm 2 for 10 minutes.
得られたものは、基部の厚さ８mm、金属被覆炭
素繊維が独立している部分の厚さ14mmのものであ
り、充填密度は前者が97％であり、後者は約55％
であつた。このブラシの両端を切り落し、平らに
した後、リード線付の鋼線保持体にホツトプレス
して接合し、電機ブラシを作成した。この電機ブ
ラシを用いて、電流密度40A／cm2の電流を流すこ
とが可能であつた。 The obtained product has a thickness of 8 mm at the base and 14 mm at the part where the metal-coated carbon fibers are independent, and the packing density is 97% for the former and approximately 55% for the latter.
It was hot. After cutting off both ends of this brush and making it flat, it was hot pressed and joined to a steel wire holder with lead wires to produce an electric brush. Using this electric brush, it was possible to flow a current with a current density of 40 A/cm 2 .
第１図は、電機ブラシの断面略図を示すもので
ある。第２図は金型内に仕込んだ金属被覆炭素繊
維の状態を示すものである。
図中１及び７：金属被覆炭素繊維、２：ブラシ
保持体、３：リード線、４：導電性接着剤、５：
基部、６：分繊部、８：ステンレス製薄板、９及
１０：押圧板（雄金型）、１１：側板（雌金型）
を夫々示す。
FIG. 1 shows a schematic cross-sectional view of an electric brush. FIG. 2 shows the state of the metal-coated carbon fibers charged into the mold. In the figure, 1 and 7: metal-coated carbon fiber, 2: brush holder, 3: lead wire, 4: conductive adhesive, 5:
Base, 6: Separating part, 8: Stainless steel thin plate, 9 and 10: Pressing plate (male mold), 11: Side plate (female mold)
are shown respectively.
Claims (1)
続金属被覆炭素繊維からなり、先端部該繊維の充
填密度が30〜90％であり、基部の当該繊維相互が
被覆金属材料によつて接合され、基部の該繊維充
填密度が90〜100％からなり、かつ該基部を導電
性接着剤又は拡散接合により保持体に接合してな
る電機ブラシ。1 The tip part is made of continuous metal-coated carbon fibers that are aligned on one side and separated into individual fibers, the packing density of the fibers at the tip part is 30 to 90%, and the fibers at the base part are joined to each other by the coated metal material. An electric brush, wherein the fiber packing density of the base is 90 to 100%, and the base is bonded to a holder using a conductive adhesive or diffusion bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14654179A JPS5671283A (en) | 1979-11-14 | 1979-11-14 | Electric brush and method of manufacturing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14654179A JPS5671283A (en) | 1979-11-14 | 1979-11-14 | Electric brush and method of manufacturing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5671283A JPS5671283A (en) | 1981-06-13 |
| JPS6348152B2 true JPS6348152B2 (en) | 1988-09-27 |
Family
ID=15409977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14654179A Granted JPS5671283A (en) | 1979-11-14 | 1979-11-14 | Electric brush and method of manufacturing same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5671283A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0391276U (en) * | 1989-12-29 | 1991-09-18 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997037847A1 (en) * | 1996-04-05 | 1997-10-16 | Kuhlmann Wilsdorf Doris | Continuous metal fiber brushes |
| US7423359B2 (en) * | 2004-06-18 | 2008-09-09 | Moog Inc. | Fluid-dispensing reservoir for large-diameter slip rings |
-
1979
- 1979-11-14 JP JP14654179A patent/JPS5671283A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0391276U (en) * | 1989-12-29 | 1991-09-18 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5671283A (en) | 1981-06-13 |
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