JPS58224138A - Manufacture of sintered material for collector for traveling in low-speed region - Google Patents

Manufacture of sintered material for collector for traveling in low-speed region

Info

Publication number
JPS58224138A
JPS58224138A JP10757682A JP10757682A JPS58224138A JP S58224138 A JPS58224138 A JP S58224138A JP 10757682 A JP10757682 A JP 10757682A JP 10757682 A JP10757682 A JP 10757682A JP S58224138 A JPS58224138 A JP S58224138A
Authority
JP
Japan
Prior art keywords
sintered
collector
low
traveling
speed region
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.)
Granted
Application number
JP10757682A
Other languages
Japanese (ja)
Other versions
JPS631385B2 (en
Inventor
Iwao Azetsu
畔津 巌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TEIKOKU CARBON KOGYO KK
Original Assignee
TEIKOKU CARBON KOGYO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TEIKOKU CARBON KOGYO KK filed Critical TEIKOKU CARBON KOGYO KK
Priority to JP10757682A priority Critical patent/JPS58224138A/en
Publication of JPS58224138A publication Critical patent/JPS58224138A/en
Publication of JPS631385B2 publication Critical patent/JPS631385B2/ja
Granted legal-status Critical Current

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  • Powder Metallurgy (AREA)

Abstract

PURPOSE:To obtain a sintered material for a collector for traveling in a low- speed region with superior wear and arc resistances by sintering a powdered mixture contg. prescribed percentages of metallic sulfide, graphite, P, Cu and Fe. CONSTITUTION:A powdered blended starting material consisting of, by weight, 0.5-7% metallic sulfide, 0.5-5% graphite, <=2% P, 20-50% Cu and the balance Fe is prepared. The material is mixed, compression-molded, and sintered by heating. The sintered body has superior wear and arc resistances, and it is used as a sintered material for a collector for traveling in a low-speed region.

Description

【発明の詳細な説明】[Detailed description of the invention]

本発明は、主として起重機等の低速域走行運搬機械の集
電装置に用いられるトロリーホイール並びにトロリーシ
ュー(以下集電子という)に適した耐摩耗性、耐アーク
性焼結集電材の製造法に関するものである。 前記の如き集電子は、電気的性質良好で、架線との接触
摩擦係数が小さく、かつ耐摩耗性、耐アーク性に秀れた
材料で々くてはならないが、これらの条件をすべて具備
する集電子を得ることはきわめて困難である。すなわち
、起重機等の走行運搬機械は通常20 Km/ H以下
の速度であるため、その集電子は新幹線その他の高速車
用と比較すると架線との摩擦が大きく、架線への攻撃性
を小さくするためソフトな材質のもの全周いる必要があ
り、このため、賜金含有する青銅鋳物や銅系焼結合が 
一般に使用されている。しかし乍ら、青銅鋳物は潤滑材
不足による高摩擦のため相手架線を傷めると同時に自分
自身の摩耗を早め、また低融点金属である錫を含有して
いるところからアークに弱く、溶損などの欠点が生じや
すい。銅系焼結合金は前者に比較すると耐摩耗性および
相手方架線を傷めない点ではるかに優れているが、青銅
鋳物と同様VC錫k 含有しているため耐アーク性の点
において問題がある。 本発明は、前記従来の集電子の欠点を改善するのみなら
ず、さらにその性能の向上を目指したものである。すな
わち、従来の青銅鋳物や銅系焼結合金の基本的素地であ
る銅−錫にかえて融点の高い鉄−銅で素地全形成し、こ
れによつ′て耐摩耗性。 耐アーク性を大巾に改善し、さらに潤滑材であるグラフ
ァイトに加えて耐アーク性の高い二硫化モリプデン等の
金属硫化物を配合1.て、七の潤滑性能全飛躍的に向上
せしめんとするものである。 本発明は、前記の目的全達成するため、重舞比にて、金
属硫化物0.5〜7%、グラファイト0.5〜5%、燐
2%以下、銅Z)〜50%、残部鉄よりなり、これらの
粉末を混合後圧組成形
The present invention relates to a method for manufacturing a wear-resistant and arc-resistant sintered current collector material suitable for trolley wheels and trolley shoes (hereinafter referred to as "collector") used mainly in current collectors of low-speed transport machines such as hoists. be. The current collector described above must be made of a material that has good electrical properties, a low coefficient of friction when contacting with the overhead wire, and has excellent wear resistance and arc resistance, and it must meet all of these conditions. Obtaining a current collector is extremely difficult. In other words, since the speed of traveling transport machines such as hoists is usually less than 20 km/h, their collectors have more friction with the overhead wires than those for Shinkansen and other high-speed vehicles, so it is necessary to reduce the aggressiveness of the overhead wires. It is necessary to use a soft material all around, and for this reason bronze castings containing gold or copper-based sintered joints are not suitable.
Commonly used. However, due to the high friction caused by the lack of lubricant, bronze castings damage the other overhead wires and accelerate their own wear, and because they contain tin, a metal with a low melting point, they are susceptible to arcing and are susceptible to melting and damage. Defects are likely to occur. Copper-based sintered alloys are much better than the former in terms of wear resistance and not damaging the other party's overhead wires, but like bronze castings, they contain VCtin, so they have problems in terms of arc resistance. The present invention aims not only to improve the drawbacks of the conventional current collectors but also to further improve their performance. That is, instead of copper-tin, which is the basic base of conventional bronze castings and copper-based sintered alloys, the entire base is made of iron-copper, which has a high melting point, and this makes it wear-resistant. The arc resistance has been greatly improved, and in addition to graphite, which is a lubricant, metal sulfides such as molybdenum disulfide, which has high arc resistance, are added.1. The aim is to dramatically improve all lubrication performance. In order to achieve all of the above objects, the present invention has a weight ratio of 0.5 to 7% of metal sulfide, 0.5 to 5% of graphite, 2% or less of phosphorus, 50% of copper (Z), and the balance of iron. After mixing these powders, pressure composition is formed.

【−2、これ全加熱して焼結する
ことを特徴とする。 上記の組成よりなる本発明の合金は、低融点金属である
錫や亜鉛を含有していないため、還元雰囲気中で高い焼
結温度を用いることができ、これによって極めて強固な
鉄−銅素地全形成[7て優れた耐摩耗性、耐アーク性を
発揮することができる。 金属硫化物並びにグラファイトは微粒の粉末状で鉄−銅
素地中に均斉に混在されており、これにより高度の潤滑
性能全発揮することができる。ただし、潤滑成分はその
総量が12%を超えると鉄〜銅素地の機械的強度が弱く
なり、1%以下では摩擦・4  □7、*# < 、、
、9□−カ□□−22,える。燐は、前記鉄−銅−金属
硫化物−グラフ了イトの焼結合金をつくる際、その強い
脱酸作用によって含有金属を清浄化して母体合金の機械
的強度を高めるもので、2%以以上台するとかえって機
械的強度を低下させる。ただし、還元雰囲気が完全で含
有金属が酸化しないときには添加する必要がない。また
、本発明により得た集電子は、焼結後約1%含油せしめ
る。これは、鉄粉含有のため発錆防止と架線との摩擦力
低減のためである。 次に、本発明の具体的実施例を述べる。 配合比(重量%) Fe   Cu  MO8!  WSt   CP実施
例]  60  30  4  −  3  1/26
0302230 /350403−3] 〃 450402230 前記各実施例の割合で配合した材料を混合機で均斉に混
合後、これf 5 T/cJで圧縮成形し、環元雰囲気
中にて1050℃で焼結1.、その後約1%含油して製
品を得た。 上記各実施例により得た焼結合金の物理的特性を示すと
第1表のと卦りである。 第  】  表 上記本発明品と性能比較試験ヲするための資料として、
青銅鋳物と銅系焼結合金全入手した。その物理的特性ケ
示すと第2表のとかりである。 第2表、第3表の各材料から試験片1(I X 25 
X匍1!111’(+7切出17、これを回転式摺動試
験機にとりつけ、押付力5ky、通電電流AC100A
 、摺動速度54Km/)I。 4!10 r、p、mで100分間無潤滑で硬銅トロリ
ー線に摺動させ、その時の各試験片の比摩耗l(試験片
の摩耗【−た体積ttan”k試験片押付力kfと摩擦
距離■の積で除したもの)と、トロリー線の摩耗寸法部
の測定、並びに試験片の摺面の状態を観察し、た。 その結果を第3表に示す。 前記第1表により明らかなように、本発明により得た焼
結合金は、集電子に必要とする電気的。 機械的特性を具備し、かつ、第3表により明らかなよう
に、現在使用されている錫含有の有銅鋳物や銅系焼結合
金製集電子に比較【7て、矛の耐M耗性、耐アーク性を
顕著に向上せしめると共Vこ、相手方架線を痛めないこ
とが立証される。 特に、本発明においでは、前記の如く、耐摩耗性、耐ア
ーク性が向上し、ているだけではなく、その摺面は平滑
で黒褐色の8!!滑光沢があり、従って相手方架線の摺
動表面の損傷と摩耗全顕著に減少せし、めることができ
る効果があり、低速域走行用集電子としてきわめて有益
で7tI)る。
[-2, This is characterized by being completely heated and sintered. Since the alloy of the present invention having the above composition does not contain tin or zinc, which are low melting point metals, it is possible to use a high sintering temperature in a reducing atmosphere. Formation [7] can exhibit excellent wear resistance and arc resistance. Metal sulfides and graphite are uniformly mixed in the iron-copper matrix in the form of fine powder, and this makes it possible to fully exhibit a high level of lubrication performance. However, if the total amount of lubricating components exceeds 12%, the mechanical strength of the iron-copper base will weaken, and if it is less than 1%, it will cause friction.
, 9□-ka□□-22, get. When making the iron-copper-metal sulfide-graphite sintered alloy, phosphorus cleans the contained metals by its strong deoxidizing action and increases the mechanical strength of the base alloy, and is used in amounts of 2% or more. A stand will actually reduce the mechanical strength. However, it is not necessary to add it when the reducing atmosphere is complete and the contained metal is not oxidized. Further, the current collector obtained according to the present invention is impregnated with about 1% oil after sintering. This is because it contains iron powder to prevent rust and reduce frictional force with overhead wires. Next, specific examples of the present invention will be described. Blending ratio (weight%) Fe Cu MO8! WSt CP Example] 60 30 4 - 3 1/26
0302230 /350403-3] 〃 450402230 After uniformly mixing the materials blended in the proportions of each of the above examples in a mixer, this was compression molded at f 5 T/cJ, and sintered at 1050°C in a ring atmosphere. .. , and then impregnated with about 1% oil to obtain a product. Table 1 shows the physical properties of the sintered alloys obtained in each of the above examples. ] As a material for performing a performance comparison test with the above-mentioned invention product,
Obtained all bronze castings and copper-based sintered alloys. Its physical properties are shown in Table 2. Test piece 1 (I x 25
The
, sliding speed 54Km/)I. 4!Slide on a hard copper trolley wire without lubrication at 4.10r, p, m for 100 minutes, and calculate the specific wear of each test piece at that time l (wear of the test piece - volume ttan''k test piece pressing force kf) The results are shown in Table 3. The results are shown in Table 3. The results are shown in Table 3. As shown in Table 3, the sintered alloy obtained according to the present invention has the electrical and mechanical properties necessary for current collection, and as is clear from Table 3, it is superior to the currently used tin-containing alloys. Compared to collectors made of copper castings or copper-based sintered alloys, it has been proven that the wear resistance and arc resistance of the spears are significantly improved, and that they do not damage the other party's overhead wires. In particular, In the present invention, not only the abrasion resistance and arc resistance are improved as described above, but also the sliding surface is smooth and has a blackish-brown 8!! gloss, so that the sliding surface of the mating overhead wire is It has the effect of significantly reducing damage and wear, making it extremely useful as a current collector for low-speed driving.

Claims (1)

【特許請求の範囲】[Claims] 重量比にて、金属硫化物0.5〜7%、グラファイト0
.5〜5%、燐2%以下、銅加〜関%、残部鉄よりなる
粉末材料を混合後圧縮成形[7、これを加熱して焼結す
ることを特徴とする低速域走行用焼結集電材の製造法。
By weight: 0.5-7% metal sulfide, 0 graphite
.. A sintered current collector material for running in a low speed range, characterized in that a powder material consisting of 5 to 5% phosphorus, 2% or less phosphorus, 2% or less copper, and the balance iron is mixed and then compression molded [7] This is heated and sintered. manufacturing method.
JP10757682A 1982-06-24 1982-06-24 Manufacture of sintered material for collector for traveling in low-speed region Granted JPS58224138A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10757682A JPS58224138A (en) 1982-06-24 1982-06-24 Manufacture of sintered material for collector for traveling in low-speed region

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10757682A JPS58224138A (en) 1982-06-24 1982-06-24 Manufacture of sintered material for collector for traveling in low-speed region

Publications (2)

Publication Number Publication Date
JPS58224138A true JPS58224138A (en) 1983-12-26
JPS631385B2 JPS631385B2 (en) 1988-01-12

Family

ID=14462668

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10757682A Granted JPS58224138A (en) 1982-06-24 1982-06-24 Manufacture of sintered material for collector for traveling in low-speed region

Country Status (1)

Country Link
JP (1) JPS58224138A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03183744A (en) * 1989-12-11 1991-08-09 Komatsu Ltd Ferrous sintered sliding material
RU2471881C1 (en) * 2011-11-07 2013-01-10 Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет" Mechanically activated sintered iron-graphite composite for female dies of combined casting and rolling

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4920844A (en) * 1972-06-20 1974-02-23

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4920844A (en) * 1972-06-20 1974-02-23

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03183744A (en) * 1989-12-11 1991-08-09 Komatsu Ltd Ferrous sintered sliding material
RU2471881C1 (en) * 2011-11-07 2013-01-10 Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет" Mechanically activated sintered iron-graphite composite for female dies of combined casting and rolling
EA021430B1 (en) * 2011-11-07 2015-06-30 Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет" Mechanically activated sintered iron-graphite composite for female dies of combined casting and rolling

Also Published As

Publication number Publication date
JPS631385B2 (en) 1988-01-12

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