JPH0499836A - Sintered copper series sliding material - Google Patents
Sintered copper series sliding materialInfo
- Publication number
- JPH0499836A JPH0499836A JP21503690A JP21503690A JPH0499836A JP H0499836 A JPH0499836 A JP H0499836A JP 21503690 A JP21503690 A JP 21503690A JP 21503690 A JP21503690 A JP 21503690A JP H0499836 A JPH0499836 A JP H0499836A
- Authority
- JP
- Japan
- Prior art keywords
- alumina
- copper
- weight
- graphite
- sliding material
- 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
Links
- 239000000463 material Substances 0.000 title claims abstract description 47
- 150000001879 copper Chemical class 0.000 title abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 60
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000010949 copper Substances 0.000 claims abstract description 30
- 229910052802 copper Inorganic materials 0.000 claims abstract description 29
- 239000002245 particle Substances 0.000 claims abstract description 29
- 239000010439 graphite Substances 0.000 claims abstract description 24
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 23
- 230000013011 mating Effects 0.000 abstract description 13
- 239000011135 tin Substances 0.000 abstract description 6
- 229910052745 lead Inorganic materials 0.000 abstract description 4
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 4
- 229910052718 tin Inorganic materials 0.000 abstract description 4
- 238000005245 sintering Methods 0.000 abstract description 3
- 238000004898 kneading Methods 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 14
- 238000005461 lubrication Methods 0.000 description 12
- 239000000843 powder Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000003350 kerosene Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000007788 roughening Methods 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010723 turbine oil Substances 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野１
本発明は、銅系摺動材料に関するものであり、さらに詳
しく述べるならば、銅−黒鉛−アルミナを主成分とする
焼結摺動材料の改良に関するものである。[Detailed Description of the Invention] [Industrial Application Field 1] The present invention relates to a copper-based sliding material, and more specifically, a sintered sliding material whose main components are copper-graphite-alumina. It is about improvement.
従来から、青銅、鉛青銅、黄銅、ケルメツトなどの合金
が銅系摺動材料として使用されている。Conventionally, alloys such as bronze, lead bronze, brass, and kelmet have been used as copper-based sliding materials.
これらの材料はいずれも潤滑油が多く存在する使用条件
下でのみ摺動特性を発揮するが、潤滑条件の厳しいいわ
ゆる境界潤滑領域で使用された場合、摺動特性は甚だ不
充分であって、短時間で摩耗、焼付き等の損傷に至る。All of these materials exhibit sliding properties only under usage conditions where a large amount of lubricating oil is present, but when used in the so-called boundary lubrication region where lubrication conditions are severe, the sliding properties are extremely insufficient. Damage such as wear and seizure will occur in a short period of time.
そこで境界潤滑条件で使用可能な材料としてボリテトラ
フルオロエヂレン（ＰＴＦＥ）に代表される樹脂軸受や
、金属の摺動面に黒鉛を埋め込んだ軸受などが使用され
ていたが、いずれも耐摩耗性および耐焼付性が劣り、充
分な摺動特性は得られていなかった。Therefore, as materials that can be used under boundary lubrication conditions, resin bearings such as poritetrafluoroethylene (PTFE) and bearings with graphite embedded in the metal sliding surface have been used, but both are wear resistant. Also, the seizure resistance was poor, and sufficient sliding characteristics were not obtained.
そこで、本発明者らは、特開昭６１−６７７３６号およ
び特開昭６０−１０６９３２号などで提案されている銅
−黒鉛−アルミナを主成分とする焼結材料では、黒鉛に
よる低摩擦性およびアルミナによる耐摩耗性がみられる
ことに着目し、その摺動特性を研究した。しかしながら
、通常の焼結法により製造した銅−黒鉛−アルミナ系焼
結材料は、境界潤滑条件下で耐摩耗性試験および耐焼付
性試験において摺動面からのアルミナの脱落を呈し、優
れた軸受特性を備えていないために、本発明者等は境界
潤滑条件下における優れた軸受特性、特に耐摩耗性およ
び耐焼付性を有する銅−黒鉛−アルミナ系焼結摺動材料
を開発することを目的として、特開昭６３−３１２９３
３号公報において、１〜１０重量％の黒鉛、１〜７重量
％のアルミナおよび残部銅からなり、アルミナが銅マト
リツクス中に分散されている焼結摺動材料を提案した。Therefore, the present inventors have discovered that the sintered materials mainly composed of copper-graphite-alumina proposed in JP-A-61-67736 and JP-A-60-106932 have low friction and low friction due to graphite. Focusing on the wear resistance of alumina, we studied its sliding properties. However, the copper-graphite-alumina sintered material manufactured by the normal sintering method exhibits alumina falling off from the sliding surface in wear resistance tests and seizure resistance tests under boundary lubrication conditions, making it an excellent bearing material. Therefore, the present inventors aimed to develop a copper-graphite-alumina-based sintered sliding material that has excellent bearing properties under boundary lubrication conditions, especially wear resistance and seizure resistance. As, JP-A-63-31293
No. 3 proposed a sintered sliding material consisting of 1-10% by weight of graphite, 1-7% by weight of alumina and the balance copper, with the alumina being dispersed in a copper matrix.
前掲特開昭６３−３１２９３３号公報においては、アル
ミナは硬質粒子として焼結材料中に分散し、耐摩耗性を
向上せしめ、アルミナの量が１重量％未満では耐摩耗性
向上作用が少なく、一方アルミナの量が７重量％を越え
ると、アブレーシブな摩耗が起こり、その結果アルミナ
の脱落による焼結軸受材料の摩耗が起こるばかりでなく
、脱落粒子による相手材の摩耗が起こり、また耐焼付性
も不充分になる：好ましいアルミナ量は１〜５重量％で
あり、さらに好ましいアルミナ量は１゜５〜３重量％で
あると説明されている。In the above-mentioned Japanese Patent Application Laid-Open No. 63-312933, alumina is dispersed in the sintered material as hard particles to improve wear resistance, and if the amount of alumina is less than 1% by weight, the effect of improving wear resistance is small; If the amount of alumina exceeds 7% by weight, abrasive wear will occur, resulting in not only wear of the sintered bearing material due to shedding of alumina, but also wear of the mating material due to shedding particles, and a reduction in seizure resistance. Insufficient: It is explained that the preferred amount of alumina is 1 to 5% by weight, and the more preferred amount of alumina is 1.5 to 3% by weight.
また、アルミナ粒子としては、アルミナ粉（フジミ製作
所製、γ−ＡＩ２２０．．平均粒径５μｍ、商品名ＷＡ
＃３０００）が前掲特開昭６３−３１２９３３号（以下
、「先願」という）に記載されている。In addition, as alumina particles, alumina powder (manufactured by Fujimi Seisakusho, γ-AI220..average particle size 5 μm, trade name WA
#3000) is described in the aforementioned Japanese Patent Application Laid-Open No. 63-312933 (hereinafter referred to as the "prior application").
先願では焼付試験は下記条件で実験されている。In the previous application, a seizure test was conducted under the following conditions.
ビンディスク式スラスト試験機
すべり速度： ４ ｍ／ｓ（５００ｒｐｍ）潤滑油
：灯油（パッド給油）
： ３５５Ｃ焼入れ、■ｖ５００−６００＝ ０．８±
０． ２ μｍ
＝ １〜２μｍ
：漸増４０−２０−６０
２０ ｋｇ／ １５ ｍｉｎ
［発明が解決しようとする課題］
先願に開示された１〜７重量％のＡρ２０３を含有する
銅−黒鉛−アルミナ系摺動材料は上記焼付試験条件より
高速のすべり速度で試験された時は低い荷重で焼付きが
起こり耐焼付性の低下が見られた。Bin disk type thrust tester Sliding speed: 4 m/s (500 rpm) Lubricating oil
: Kerosene (pad lubrication) : 355C quenching, ■v500-600=0.8±
0. 2 μm = 1 to 2 μm: Gradual increase 40-20-60 20 kg/15 min [Problem to be solved by the invention] Copper-graphite-alumina based slide containing 1 to 7% by weight of Aρ203 disclosed in the previous application When dynamic materials were tested at a higher sliding speed than the seizure test conditions described above, seizure occurred at low loads and a decrease in seizure resistance was observed.
この原因を本発明者が研究したところ軸受のアルミナの
平均粒径が５ミクロンオーダーであると、通常ミクロン
オーダーの粗さに仕上げられている相手軸を軸受がラッ
プする作用が大きく；相手軸が鋳鉄または鋳鋼製である
ときはグラファイトが削り取られ、容易に焼付に至り、
また相手軸が鋼製であるときはマトリックスを削り取る
ため焼付が起こり易いことが判明した。The inventor researched the cause of this and found that when the average grain size of the alumina in the bearing is on the order of 5 microns, the bearing has a large effect of lapping the mating shaft, which is usually finished to a roughness on the micron order; If it is made of cast iron or cast steel, the graphite will be scraped off and it will easily seize.
It has also been found that when the mating shaft is made of steel, seizure is likely to occur because the matrix is scraped off.
したがって、本発明は高速摺動条件下でも相手相手軸
軸粗さ
軸受粗さ
荷重
軸をラップする作用が少な（、また耐摩耗性も優れてい
る銅−グラファイト−アルミナ系焼結摺動材料を提供す
ることを目的とする。Therefore, the present invention uses a copper-graphite-alumina sintered sliding material that has less lapping effect on the mating shaft roughness, bearing roughness, and load shaft even under high-speed sliding conditions (and also has excellent wear resistance). The purpose is to provide.
［課題を解決するための手段］
本発明に係る焼結銅系摺動材料は、１〜１０重量％の黒
鉛、０．０５〜１重量％未満の平均粒径が２μｍ以下の
アルミナ、および残部銅からなることを特徴とする。[Means for Solving the Problems] The sintered copper-based sliding material according to the present invention contains 1 to 10% by weight of graphite, 0.05 to 1% by weight of alumina with an average particle size of 2 μm or less, and the balance. It is characterized by being made of copper.
更に、本発明の焼結銅系摺動材料は上記組成に、任意成
分として（ａ）１〜１５重量％のＳｎと１〜３０重量％
のＰｂのいずれか一方または両方を添加し、（ｂ）１〜
１５重量％のＳｎと１〜３０重量％のＰｂのいずれか一
方または両方、１重量％以下のＰを添加し、あるいは（
ｃ）１重量％以下のＰを添加したものであってよい。Furthermore, the sintered copper-based sliding material of the present invention further includes (a) 1 to 15% by weight of Sn and 1 to 30% by weight as optional components in the above composition.
Adding either one or both of Pb (b) 1 to
Either one or both of 15% by weight of Sn and 1 to 30% by weight of Pb, 1% by weight or less of P is added, or (
c) P may be added in an amount of 1% by weight or less.
以下、本発明に係る焼結銅系摺動材料の構成を説明する
。Hereinafter, the structure of the sintered copper-based sliding material according to the present invention will be explained.
先ず共通の組成を説明する。First, the common composition will be explained.
黒鉛は潤滑作用を有し、耐焼付性を向上せしめる。黒鉛
の量が１重量％未満では境界潤滑条件下での耐焼付性向
上作用が少なく、一方１０重量％を越えると、銅粒子ど
うしの接触割合が低くなり、銅粒子が黒鉛の被膜に囲ま
れた孤立状態となるため、摺動材料のマトリックスの強
度が低下するとともに、この結果耐摩耗性が劣化する。Graphite has a lubricating effect and improves seizure resistance. If the amount of graphite is less than 1% by weight, the effect of improving seizure resistance under boundary lubrication conditions will be small, while if it exceeds 10% by weight, the contact ratio between copper particles will be low, and the copper particles will be surrounded by a graphite film. As a result, the strength of the matrix of the sliding material decreases, and as a result, the wear resistance deteriorates.
好ましい黒鉛量は１〜５重量％であり、さらに好ましい
黒鉛量は１〜３重量％である。The preferred amount of graphite is 1 to 5% by weight, and the more preferred amount of graphite is 1 to 3% by weight.
アルミナは摺動材料の耐摩耗性を高めるとともに、相手
軸の粗さを低減することによって耐焼付性を高める。こ
の作用を発揮するには、アルミナの平均粒径は２μｍ以
下でなければならず、好ましくは０．５μｍ以下である
。かつアルミナの含有量は０．０５〜１重量％未満でな
ければならない。アルミナの含有量が１％以上であるか
または平均粒径が２μｍを越えると、アルミナが軸を粗
す作用が大きくなる。アルミナの好ましい平均粒径は０
．２〜０．５μｍである。Alumina increases the wear resistance of the sliding material and also improves the seizure resistance by reducing the roughness of the mating shaft. In order to exhibit this effect, the average particle size of alumina must be 2 μm or less, preferably 0.5 μm or less. And the content of alumina should be less than 0.05-1% by weight. When the content of alumina is 1% or more or the average particle size exceeds 2 μm, the effect of alumina in roughening the shaft increases. The preferred average particle size of alumina is 0
．． It is 2 to 0.5 μm.
一方、アルミナの添加量は１重量％以下と少なくとも、
またアルミナの平均粒径は先願のように大きくともまた
本願のように小さくとも軸受自体の耐摩耗性にはさほど
の影響はない。On the other hand, the amount of alumina added is at least 1% by weight or less.
Furthermore, whether the average particle size of alumina is large as in the prior application or small as in the present application, it does not have much effect on the wear resistance of the bearing itself.
アルミナは出来るだけ多くの量が銅又は銅合金中に分散
していることがその作用を発揮する上で好ましい。グラ
ファイト中に分散したアルミナは脱落しやすく、その作
用を安定して発揮することが困難である。It is preferable that as much alumina as possible is dispersed in copper or copper alloy in order to exert its effect. Alumina dispersed in graphite easily falls off, making it difficult to stably exhibit its effects.
本発明の摺動材料は任意成分としてさらに１５重量％以
下のＳｎおよび３０重量％以下のＰｂの少な（とも一方
を添加したものであってもよい。これらの元素は軟質成
分として摺動材料中に分散し、潤滑性を付与する。Ｓｎ
およびＰｂの含有量がそれぞれ１５重量％および３０重
量％を越えると、摺動材料の強度が低下するので上限を
それぞれ１５重量％および３０重量％とする。好ましい
添加量の下限はいずれも１％である。The sliding material of the present invention may further contain 15% by weight or less of Sn and 30% by weight or less of Pb (either of which may be added as an optional component.These elements may be added as soft components in the sliding material). Dispersed in Sn and imparts lubricity.
If the content of Pb and Pb exceeds 15% by weight and 30% by weight, respectively, the strength of the sliding material decreases, so the upper limits are set to 15% by weight and 30% by weight, respectively. The lower limit of the preferable addition amount is 1%.
さらに、耐摩耗性向上成分としてＰを１重量％以下、好
ましくは０．００１ないし１重量％以下を添加すること
もできる。これらの添加成分は、銅との合金として添加
してもまた単独に添加してもあるいは相互の合金として
もほぼ同等の効果を奏する。但し、銅マトリツクス中に
アルミナを取り込むための方法との関連で添加量の制限
がある。Furthermore, 1% by weight or less, preferably 0.001 to 1% by weight of P can be added as a wear resistance improving component. These additive components produce substantially the same effect whether added as an alloy with copper, added alone, or as an alloy with each other. However, there are restrictions on the amount of alumina added due to the method of incorporating alumina into the copper matrix.
以下、本発明の摺動材料の製造方法を説明する。Hereinafter, the method for manufacturing the sliding material of the present invention will be explained.
通常、焼結銅系材料で銅（合金）粒子に使用されるアト
マイズ粉は形状が球形で、等方向であるため均一な焼結
製品が得られ易い。アトマイズ粉は製造が容易であるな
どの利点があるが、アルミナ粒子と混合焼結するとアル
ミナは銅（合金）粒子の外即ち粒界に分散される傾向が
大であるため、アトマイズ粉を使用する時はアルミナと
の長時間の混合が必要である。Generally, atomized powder used for copper (alloy) particles in sintered copper-based materials has a spherical shape and isotropic orientation, making it easy to obtain a uniform sintered product. Atomized powder has the advantage of being easy to manufacture, but when mixed with alumina particles and sintered, alumina tends to be dispersed outside the copper (alloy) particles, that is, at the grain boundaries, so atomized powder is not used. Sometimes long-term mixing with alumina is required.
銅粒子の形状が、樹枝状、顆粒を多数数珠つなぎにした
形状である電解銅粉はアルミナの粒子との混合が比較的
短時間でアルミナを銅粉中に取り込むことができる。例
えば、ボールミル式混合混錬機で２４時間以上撹拌する
ことにより所望の分散形態が得られる。Electrolytic copper powder, in which the shape of the copper particles is dendritic or has a large number of granules connected together, can incorporate alumina into the copper powder in a relatively short time when mixed with alumina particles. For example, a desired dispersion form can be obtained by stirring for 24 hours or more using a ball mill type mixing and kneading machine.
なお、現在市販されている銅粉は純銅粉が多いため、Ｃ
ｕ、Ｓｎ、Ｐなどの添加成分は銅粉とは別の粉末材料と
して添加することが必要である。In addition, since most of the copper powder currently on the market is pure copper powder, C.
Additional components such as u, Sn, and P need to be added as a powder material separate from the copper powder.
その添加工程はアルミナとの混合工程では、多少の酸化
等が起こり得るので、アルミナとの混合工程の後である
ことが望ましい。It is preferable that the addition step be performed after the mixing step with alumina, since some oxidation may occur during the mixing step with alumina.
なお、アルミナとしては、市販されているＮｉコートア
ルミナ粒子を使用することができる。この粒子の表面に
存在するＮｉは銅との相性が良い金属であるため、この
粒子を使用することにより焼結性が向上する。しかし、
Ｎｉはアルミナより硬度が低いため耐摩耗性はアルミナ
使用の場合より低（なる傾向があるが、アルミナ粒子が
長期間安定に銅マトリックスに保持されることによる長
時間の耐摩耗性改善の効果が期待される。Note that commercially available Ni-coated alumina particles can be used as the alumina. Since Ni present on the surface of these particles is a metal that is compatible with copper, the use of these particles improves sinterability. but,
Since Ni has lower hardness than alumina, its wear resistance tends to be lower than when alumina is used. Be expected.
なお、Ｃｕ、Ａｊ２などをアルミナ粒子にスパッタある
いは蒸着してもほぼ同じ効果が期待される。Note that almost the same effect is expected even if Cu, Aj2, etc. are sputtered or vapor deposited on alumina particles.
焼結の条件は、例えば７５０〜１０００℃である。得ら
れる焼結体では、通常の金属焼結体の場合は空孔の原因
となるマトリックス間の粒界には黒鉛が密に充填されて
おり、また場合により極（少量のアルミナなどが充填さ
れているため、これらの非金属成分の充填により殆ど空
孔がない。The sintering conditions are, for example, 750 to 1000°C. In the resulting sintered body, graphite is densely packed in the grain boundaries between the matrix, which causes pores in the case of ordinary metal sintered bodies, and in some cases, graphite is densely filled with graphite (a small amount of alumina etc. is filled in). Therefore, there are almost no pores due to the filling of these nonmetallic components.
本発明の実施態様として、焼結製品をタービン油、マシ
ン油、エンジンオイル、冷凍機油の中に浸漬して含油さ
せることができる。この場合油は黒鉛中に吸収され、摺
動材料と相手材の摺動面に給油を行って摺動特性を一層
改良する。ここで油が黒鉛中に飽和することにより制限
される含油量上限は約５重量％である。In an embodiment of the present invention, the sintered product can be impregnated by immersing it in turbine oil, machine oil, engine oil, or refrigeration oil. In this case, the oil is absorbed into the graphite and supplies oil to the sliding surfaces of the sliding material and the mating material, further improving the sliding characteristics. The upper limit of the oil content, which is limited by saturation of the oil in the graphite, is about 5% by weight.
［作用］
従来の銅−グラファイト系摺動材料はアルミナを添加し
たものでもしないものでも相手軸（鋼軸及び鋳鉄軸）を
粗す性質があった。このため潤滑条件が境界潤滑になり
やす（、特に高速摺動条件では耐焼付性が低下していた
。本発明のようにアルミナの含有量と平均粒径を限定す
ることによって前記系の摺動材料は相手軸を粗さず、む
しろ相手軸の粗さを細かくし、潤滑条件を流体潤滑に近
付ける作用があることが分かった。[Function] Conventional copper-graphite sliding materials, whether or not they contain alumina, have the property of roughening the mating shafts (steel shafts and cast iron shafts). For this reason, the lubrication conditions tend to become boundary lubrication (especially under high-speed sliding conditions, the seizure resistance is reduced. By limiting the alumina content and average particle size as in the present invention, the sliding It was found that the material does not make the mating shaft rough, but rather makes the mating shaft finer, bringing the lubrication conditions closer to fluid lubrication.
以下、さらに本発明の詳細な説明する。The present invention will be further explained in detail below.
［実施例］
第１表に示される組成の摺動材料を得るように、アトマ
イズ銅粉（１００メツシユアンダー）、とアルミナ粉な
ボールミルで５時間撹拌した後、これらの混合物と黒鉛
粉をブレンダーで３０分撹拌し、さらに適量の有機成型
剤を加え撹拌した。これらの混合物を約５ ｔｏｎ／ｃ
ｍ２の圧力で圧粉成型し、Ｈ２雰囲気、９００℃、１時
間の条件で焼結した。得られた焼結体を約５ ｔｏｎ／
ｃｍ２の圧力でサイジングして、２０Ｘ ３０Ｘ １０
ｍｍの寸法とした。[Example] To obtain a sliding material having the composition shown in Table 1, atomized copper powder (100 mesh under) and alumina powder were stirred in a ball mill for 5 hours, and then the mixture and graphite powder were mixed in a blender. The mixture was stirred for 30 minutes, and then an appropriate amount of an organic molding agent was added and stirred. Approximately 5 ton/c of these mixtures
The powder was compacted at a pressure of m2, and sintered in an H2 atmosphere at 900°C for 1 hour. Approximately 5 tons of the obtained sintered body
Sizing with cm2 pressure, 20X 30X 10
The dimensions were mm.
かかる試料を下記条件の耐摩耗性試験および耐焼付性試
験に付した。This sample was subjected to a wear resistance test and a seizure resistance test under the following conditions.
肚聚■ユ１１
円筒平板式摩擦摩耗試験機
すべり速度： ０．２１ｍ／ｓ（１００ｒｐｍ）潤滑油
：灯油とぶづけ
相手軸 ： ５５５Ｇ焼入れ、Ｈｖ５００−６００軸
粗さ ＝０．８±０．１μｍ
軸受粗さ ＝１〜２μｍ
荷重 ： １０ ｋｇ／ｃｍ２
塊土ｔｊＬ恥
ピンオンディスク式スラスト試験機
すべり速度： ８ｍ／ｓ （１０００ｒｐｍ）潤滑油
：灯油（パッド給油）
相手軸 ： ５５５Ｇ焼入れ、ＨＶ５００−６００軸
粗さ ：０．８±０．１μｍＲｚ
軸受粗さ ＝１〜２μｍ
荷重 ：漸増２０ ｋｇ／ １５ ｍｉｎ試験結果
を表１に示す。肚聚■ゆ 11 Cylindrical and flat plate friction and wear tester Sliding speed: 0.21m/s (100rpm) Lubricating oil: Kerosene and mating shaft: 555G quenching, Hv500-600 Shaft roughness = 0.8±0.1μm Bearing Roughness = 1 to 2 μm Load: 10 kg/cm2 Clod TJL pin-on-disc thrust tester Sliding speed: 8 m/s (1000 rpm) Lubricating oil
: Kerosene (pad lubrication) Mating shaft: 555G quenching, HV500-600 Shaft roughness: 0.8±0.1 μmRz Bearing roughness = 1 to 2 μm Load: Gradual increase of 20 kg/15 min The test results are shown in Table 1.
表１において比較材２５は従来のアルミナ無添加銅−グ
ラファイト摺動材料に該当し、アルミナが添加されてい
ないために耐摩耗性が悪い。この材料は相手軸を削る作
用が大きいアルミナが添加されていないので軸を粗す作
用がないと一見思われるが、試験により軸は粗くなって
いる。これは軸受台金と軸との間でおこる物質の移着お
よび合金化の繰り返しにより軸表面金属が脱落する現象
によると考えられる。In Table 1, comparative material 25 corresponds to a conventional alumina-free copper-graphite sliding material, and has poor wear resistance because no alumina is added. This material does not contain alumina, which has the effect of sharpening the mating shaft, so at first glance it seems that it does not have the effect of roughening the shaft, but tests have shown that the shaft has become rough. This is thought to be due to a phenomenon in which metal on the shaft surface falls off due to repeated transfer and alloying of substances between the bearing base metal and the shaft.
比較材２６はアルミナの添加量が多い場合であり、耐摩
耗性は優れているが耐焼付性は悪い。比較材２７．２８
はアルミナの添加量が多くかつ平均粒径が大きい場合で
あり、耐摩耗性は優れているが耐焼付性は最悪であり、
かつ焼付試験中に軸が著しく粗れている。Comparative material 26 has a large amount of alumina added, and has excellent wear resistance but poor seizure resistance. Comparative material 27.28
is the case where a large amount of alumina is added and the average particle size is large, and the wear resistance is excellent, but the seizure resistance is the worst.
Also, the shaft was noticeably rough during the seizure test.
一方本発明の材料では焼付試験中に軸の粗さが細かくな
っており、また耐焼付性と耐摩耗性は良いバランスを示
している。On the other hand, in the material of the present invention, the roughness of the shaft became fine during the seizure test, and the seizure resistance and wear resistance showed a good balance.
［発明の効果］
以上説明したように本発明は、高速摺動条件下における
軸受性能が優れた摺動材料を提供するものである。[Effects of the Invention] As explained above, the present invention provides a sliding material with excellent bearing performance under high-speed sliding conditions.
特許出願人 大豊工業株式会社Patent applicant: Taiho Kogyo Co., Ltd.
Claims (4)
平均粒径が２μｍ以下のアルミナ、および残部銅からな
ることを特徴とする焼結銅系摺動材料。A sintered copper-based sliding material comprising 1.1 to 10% by weight of graphite, 0.05 to less than 1% by weight of alumina with an average particle size of 2 μm or less, and the balance copper.
平均粒径が２μｍ以下のアルミナ、１〜１５重量％のＳ
ｎと１〜３０重量％のＰｂのいずれか一方または両方、
残部銅からなることを特徴とする焼結銅系摺動材料。2.1 to 10% by weight of graphite, 0.05 to 1% by weight of alumina with an average particle size of 2 μm or less, 1 to 15% by weight of S
Either or both of n and 1 to 30% by weight of Pb,
A sintered copper-based sliding material characterized by the balance being made of copper.
平均粒径が２μｍ以下のアルミナ、１〜１５重量％のＳ
ｎと１〜３０重量％のＰｂのいずれか一方または両方、
１重量％以下のＰ、残部銅からなることを特徴とする焼
結銅系摺動材料。3.1 to 10% by weight of graphite, 0.05 to 1% by weight of alumina with an average particle size of 2 μm or less, 1 to 15% by weight of S
Either or both of n and 1 to 30% by weight of Pb,
A sintered copper-based sliding material characterized by comprising 1% by weight or less of P and the balance copper.
粒径が０．５μｍ以下のアルミナ、１重量％以下のＰ、
および残部銅からなることを特徴とする焼結銅系摺動材
料。4.1 to 10% by weight of graphite, 0.05 to 1% by weight of alumina with an average particle size of 0.5 μm or less, 1% by weight or less of P,
A sintered copper-based sliding material characterized in that the balance is copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2215036A JP2974738B2 (en) | 1990-08-16 | 1990-08-16 | Sintered copper sliding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2215036A JP2974738B2 (en) | 1990-08-16 | 1990-08-16 | Sintered copper sliding material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0499836A true JPH0499836A (en) | 1992-03-31 |
| JP2974738B2 JP2974738B2 (en) | 1999-11-10 |
Family
ID=16665695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2215036A Expired - Fee Related JP2974738B2 (en) | 1990-08-16 | 1990-08-16 | Sintered copper sliding material |
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| Country | Link |
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| JP (1) | JP2974738B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2360294A (en) * | 2000-02-29 | 2001-09-19 | Daido Metal Co | A copper based sliding material |
| WO2010119091A3 (en) * | 2009-04-16 | 2010-12-09 | Federal-Mogul Wiesbaden Gmbh | Sintered plain bearing material and plain bearing element |
| WO2014180951A3 (en) * | 2013-05-08 | 2014-12-31 | Federal-Mogul Wiesbaden Gmbh | Copper alloy, use of a copper alloy, bearing having a copper alloy, and method for producing a bearing composed of a copper alloy |
| CN108570630A (en) * | 2018-05-21 | 2018-09-25 | 西南交通大学 | A kind of alumina particle and whisker enhance Cu-base composites and preparation method thereof altogether |
| CN109750184A (en) * | 2019-03-08 | 2019-05-14 | 金华市程凯合金材料有限公司 | A kind of preparation method of high fine grain atomization copper alloy powder |
-
1990
- 1990-08-16 JP JP2215036A patent/JP2974738B2/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2360294A (en) * | 2000-02-29 | 2001-09-19 | Daido Metal Co | A copper based sliding material |
| GB2360294B (en) * | 2000-02-29 | 2003-04-30 | Daido Metal Co | Sliding material made of copper alloy, method of producing same, sliding bearing material and method of producing same |
| US6905779B2 (en) | 2000-02-29 | 2005-06-14 | Daido Metal Company Ltd. | Sliding material made of copper alloy, method of producing same, sliding bearing material, and method of producing same |
| WO2010119091A3 (en) * | 2009-04-16 | 2010-12-09 | Federal-Mogul Wiesbaden Gmbh | Sintered plain bearing material and plain bearing element |
| WO2014180951A3 (en) * | 2013-05-08 | 2014-12-31 | Federal-Mogul Wiesbaden Gmbh | Copper alloy, use of a copper alloy, bearing having a copper alloy, and method for producing a bearing composed of a copper alloy |
| CN105209646A (en) * | 2013-05-08 | 2015-12-30 | 菲特尔莫古威斯巴登有限公司 | Copper alloy, use of a copper alloy, bearing having a copper alloy, and method for producing a bearing composed of a copper alloy |
| JP2016524652A (en) * | 2013-05-08 | 2016-08-18 | フェデラル−モーグル ヴィースバーデン ゲーエムベーハーＦｅｄｅｒａｌ−Ｍｏｇｕｌ Ｗｉｅｓｂａｄｅｎ Ｇｍｂｈ | Copper alloy, use of copper alloy, bearing having copper alloy, and method of manufacturing bearing made of copper alloy |
| CN105209646B (en) * | 2013-05-08 | 2018-05-29 | 菲特尔莫古威斯巴登有限公司 | The method for the bearing that copper alloy, the purposes of copper alloy, the bearing of copper-bearing alloy and production are formed by copper alloy |
| US10508322B2 (en) | 2013-05-08 | 2019-12-17 | Federal-Mogul Wiesbaden Gmbh | Copper alloy, use of a copper alloy, bearing having a copper alloy, and method for producing a bearing composed of a copper alloy |
| CN108570630A (en) * | 2018-05-21 | 2018-09-25 | 西南交通大学 | A kind of alumina particle and whisker enhance Cu-base composites and preparation method thereof altogether |
| CN108570630B (en) * | 2018-05-21 | 2020-08-25 | 西南交通大学 | Aluminum oxide particle and whisker co-reinforced copper-based composite material and preparation method thereof |
| CN109750184A (en) * | 2019-03-08 | 2019-05-14 | 金华市程凯合金材料有限公司 | A kind of preparation method of high fine grain atomization copper alloy powder |
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|---|---|
| JP2974738B2 (en) | 1999-11-10 |
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