JP2003073758A - Powder composition for sliding member, and sliding member - Google Patents
Powder composition for sliding member, and sliding memberInfo
- Publication number
- JP2003073758A JP2003073758A JP2001269209A JP2001269209A JP2003073758A JP 2003073758 A JP2003073758 A JP 2003073758A JP 2001269209 A JP2001269209 A JP 2001269209A JP 2001269209 A JP2001269209 A JP 2001269209A JP 2003073758 A JP2003073758 A JP 2003073758A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- alloy
- sliding member
- powder composition
- sintering
- 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
- 239000000843 powder Substances 0.000 title claims abstract description 51
- 239000000203 mixture Substances 0.000 title claims abstract description 21
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 43
- 239000000956 alloy Substances 0.000 claims abstract description 43
- 239000011159 matrix material Substances 0.000 claims abstract description 19
- 238000005245 sintering Methods 0.000 claims abstract description 16
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 9
- 229910052718 tin Inorganic materials 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims abstract description 6
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 6
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 18
- 229910052802 copper Inorganic materials 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- 229910000881 Cu alloy Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- 239000002245 particle Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000011701 zinc Substances 0.000 description 4
- 229910017755 Cu-Sn Inorganic materials 0.000 description 3
- 229910017927 Cu—Sn Inorganic materials 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- 241000357293 Leptobrama muelleri Species 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 229910017709 Ni Co Inorganic materials 0.000 description 1
- 230000018199 S phase Effects 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000007783 splat quenching Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- -1 that is Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Landscapes
- Powder Metallurgy (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、摺動材料用の粉末
組成物と、その粉末組成物を成形し焼結してなる摺動部
材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder composition for a sliding material and a sliding member obtained by molding and sintering the powder composition.
【０００２】[0002]
【従来の技術】種々の機械部品、たとえば自動車用の部
品であって摺動部分を有するものは、摺動面におけるメ
カニックロスを低減してエネルギーの有効利用を図るた
めに、摩擦係数を小さくすることが望まれる。2. Description of the Related Art Various mechanical parts, for example, parts for automobiles having a sliding portion, have a small friction coefficient in order to reduce mechanical loss on a sliding surface and effectively utilize energy. Is desired.
【０００３】そのような部分に使用する摺動材料であっ
て、摩擦係数の低い摺動面を与える合金として、出願人
は、重量％で、Ｍｏ：１８〜３０％、およびＳ：０．５
〜４％を含有し、残部がＦｅおよび不可避の不純物から
なる組成を有するＦｅＭｏＳ合金のマトリクス中に、Ｍ
ｏ−Ｓ系やＦｅ−Ｍｏ−Ｓ系の化合物であって、固体潤
滑作用を示す物質の相（以下、両者をあわせて「ＭｏＳ
相」と呼ぶ）を分散形成させたものが有用であることを
見出し、この合金粉末の焼結体を利用することを提案し
た（特願平１１−２４６１４２）。As a sliding material used for such a part, which is an alloy giving a sliding surface having a low coefficient of friction, the applicant of the present invention has Mo: 18 to 30% by weight, and S: 0.5.
In a matrix of FeMoS alloy having a composition of ~ 4% and the balance being Fe and unavoidable impurities.
An o-S-based or Fe-Mo-S-based compound, which is a phase of a substance exhibiting a solid lubricating action (hereinafter, both are collectively referred to as "MoS
It has been found that a dispersion of a "phase") is useful, and it has been proposed to utilize a sintered body of this alloy powder (Japanese Patent Application No. 11-246142).
【０００４】続いて出願人は、上記のＦｅＭｏＳ合金焼
結体を鋼製の裏金層の上に設けた、鋼裏金付きの摺動材
料を確立して、これも開示した（特願２０００−３４６
５３２）。この鋼裏金付き摺動材料のＦｅＭｏＳ合金焼
結体は、その３０重量％までを、Ｃｕおよび（または）
Ｓｎで置き換えられるということも、あわせて開示し
た。[0004] Subsequently, the applicant established a sliding material with a steel back metal, in which the above FeMoS alloy sintered body was provided on a steel back metal layer, and disclosed this (Japanese Patent Application No. 2000-346).
532). The FeMoS alloy sintered body of the sliding material with the steel backing contains up to 30% by weight of Cu and / or
It was also disclosed that it is replaced by Sn.
【０００５】その後、ＦｅＭｏＳ合金焼結体において、
Ｆｅの一部をＮｉおよびＣｏの１種または２種で置き換
えることができ、それによって、ＦｅＭｏＳ合金の欠点
である、耐食性の弱さが改善されることを見出して、こ
れもすでに提案した（特願２０００−３５３３１１）。
ＦｅＭｏＳ合金にはまた、使用環境によってはその中の
ＦｅとＳとが反応して硫化鉄を形成し、そのためにＭｏ
Ｓ相の生成が妨げられて潤滑作用が損なわれるという懸
念があるが、それもＮｉおよび（または）Ｃｏで置き換
えることにより緩和される。Then, in the FeMoS alloy sintered body,
We have found that a part of Fe can be replaced by one or two of Ni and Co, which improves the weakness of corrosion resistance, which is a drawback of the FeMoS alloy, and has already proposed it (special feature). Wish 2000-35311).
In the FeMoS alloy, Fe and S in the FeMoS alloy may react with each other to form iron sulfide depending on the use environment.
There is a concern that the generation of the S phase will be hindered and the lubrication effect will be impaired, but this can also be mitigated by replacing with Ni and / or Co.
【０００６】一方、ＣｕまたはＣｕ−Ｓｎ合金をマトリ
クス材料とし、これにＭｏＳ２を、たとえば５％程度配
合した粉末を焼結してなる、低摩擦合金が知られてい
る。同じく、Ｃｕ−Ｓｎ合金をマトリクスとし、硬質物
質の粒子をＢｉとともに含有させた摺動材料も知られて
いる（特開２００１−８１５２３）。発明者らは、この
銅系マトリクスすなわちＣｕまたはＣｕ−Ｓｎ合金のマ
トリクスと、上記のＦｅ（Ｎｉ，Ｃｏ）ＭｏＳ合金とを
組み合わせた粉末焼結体を着想し、試作した結果、これ
が、より低い摩擦係数を示し、耐食性もすぐれているこ
とを見出した。On the other hand, a low-friction alloy is known, which comprises Cu or Cu-Sn alloy as a matrix material and sinters a powder in which MoS 2 is mixed, for example, at about 5%. Similarly, a sliding material is known in which Cu-Sn alloy is used as a matrix and particles of a hard substance are contained together with Bi (Japanese Patent Laid-Open No. 2001-81523). The inventors of the present invention have invented a powder sintered body in which this copper-based matrix, that is, a matrix of Cu or Cu—Sn alloy, and the above Fe (Ni, Co) MoS alloy are combined and made a prototype, and as a result, this is lower. The coefficient of friction was shown and it was found that the corrosion resistance was also excellent.
【０００７】[0007]
【発明が解決しようとする課題】本発明の目的は、上記
した発明者らが得た新知見を活用し、銅系マトリクスと
Ｆｅ（Ｎｉ，Ｃｏ）ＭｏＳ合金とを組み合わせてなり、
比較的低温で焼結して摺動材料とすることができる粉末
組成物を提供することにある。この粉末組成物を使用し
て製造した、低減された摩擦係数と改善された耐食性と
をもち、熱伝導率が高い摺動材料を提供することも、本
発明の目的に含まれる。The object of the present invention is to combine the copper-based matrix and the Fe (Ni, Co) MoS alloy by utilizing the new knowledge obtained by the inventors.
It is to provide a powder composition that can be sintered at a relatively low temperature to form a sliding material. It is also an object of the present invention to provide a sliding material having a reduced coefficient of friction and improved corrosion resistance and a high thermal conductivity produced using this powder composition.
【０００８】[0008]
【課題を解決するための手段】本発明の摺動部材用の粉
末組成物は、下記のマトリクス材料の粉末と低摩擦合金
の粉末とを配合してなる、粉末組成物である（％および
部は重量）。
（マトリクス材料） Ｃｕ、またはＣｕの３０％以内を
ＳｎおよびＺｎの１種または２種で置き換えたもの ５
０〜９９部
（低摩擦合金） Ｆｅ、ＮｉおよびＣｏから選んだ１
種、２種または３種：６６〜８１％、Ｍｏ：１８〜３０
％およびＳ：１〜４％からなる合金 ５０〜１部A powder composition for a sliding member of the present invention is a powder composition (% and part) which is prepared by blending the following matrix material powder and low friction alloy powder. Is the weight). (Matrix material) Cu, or one in which 30% or less of Cu is replaced by one or two of Sn and Zn 5
0 to 99 parts (low friction alloy) 1 selected from Fe, Ni and Co
Type, 2 types or 3 types: 66 to 81%, Mo: 18 to 30
% And S: alloy consisting of 1 to 4% 50 to 1 part
【０００９】本発明の摺動部材は、上記した組成の粉末
組成物を部材形状に成形し、焼結してなるものである。The sliding member of the present invention is formed by molding the powder composition having the above composition into a member shape and sintering it.
【００１０】[0010]
【発明の実施形態】本発明の摺動部材用の粉末組成物に
おいて、マトリクス材料の粉末と低摩擦合金の粉末との
比率は、上記のように、重量で、前者が５０〜９９部、
後者が５０〜１部の範囲から選ぶ。一般に、低摩擦合金
の粉末が多いほど摩擦係数が低いという効果が確実に得
られ、マトリクス材料の粉末が多ければ、焼結温度を低
くすることができ、かつ、焼結によって得た摺動部材の
強度その他の物性はすぐれたものになる。焼結部材の用
途と、所望する低摩擦効果の程度に応じて両者の比率を
決定すべきことは、もちろんである。BEST MODE FOR CARRYING OUT THE INVENTION In the powder composition for a sliding member of the present invention, the ratio of the powder of the matrix material to the powder of the low friction alloy is 50 to 99 parts by weight in terms of weight, as described above.
The latter is selected from the range of 50 to 1 part. In general, the effect that the friction coefficient is low is obtained more as the powder of the low friction alloy is larger, and the sintering temperature can be made lower if the powder of the matrix material is larger, and the sliding member obtained by the sintering is obtained. The strength and other physical properties of are excellent. Of course, the ratio of the two should be determined according to the application of the sintered member and the desired degree of low friction effect.
【００１１】本発明で、マトリクス用粉末の合金組成を
前記のように限定した理由は、つぎのとおりである。The reason why the alloy composition of the matrix powder is limited as described above in the present invention is as follows.
【００１２】Ｃｕ、またはＣｕの３０％以内をＳｎおよ
びＺｎの１種または２種で置き換えたもの
Ｃｕの一部をＳｎまたはＺｎで置き換えることにより、
いっそう低い温度で焼結が行なえる。一方、焼結によっ
て得た部材の機械的強度は向上する。しかし、摩擦係数
は上昇する傾向を見せるので、重量で３０％を置き換え
の限界として定めた。Cu, or Cu with 30% or less replaced by one or two of Sn and Zn By substituting a part of Cu by Sn or Zn,
Sintering can be performed at a lower temperature. On the other hand, the mechanical strength of the member obtained by sintering is improved. However, since the friction coefficient tends to increase, 30% by weight was set as the limit of replacement.
【００１３】低摩擦合金粉末の組成を前記のように限定
した理由は、つぎのとおりである。The reason why the composition of the low friction alloy powder is limited as described above is as follows.
【００１４】Ｆｅ，ＮｉおよびＣｏから選んだ１種また
は２種以上：６６〜８１％
Ｆｅ，ＮｉおよびＣｏの量（２種または３種併用の場合
は合計量）が、重量で６６％に満たないと、耐食性の発
現が不十分であり、またＣｒ含有鉄合金またはＣ含有鉄
合金と配合使用したときに、ＣｒやＣとＭｏＳ相との反
応が十分に抑制されず、上記した効果が低い。Ｆｅ，Ｎ
ｉおよびＣｏの添加効果は量の増大に伴って大きくなる
が、８０％を超えると飽和してくるし、焼結用粉末とし
ての適用可能な範囲が限られてくるから、あまり多量に
使用することは得策でない。ＮｉおよびＣｏ、とくに後
者は、材料としてはやや高価であるから、コストを押し
上げる要因にもなる。そこで、６６〜８１％の範囲を定
めた。One or more selected from Fe, Ni and Co: 66 to 81% The amount of Fe, Ni and Co (in the case of using two or three kinds in combination, the total amount) is less than 66% by weight. If it is not, the corrosion resistance is not sufficiently expressed, and when compounded with a Cr-containing iron alloy or a C-containing iron alloy, the reaction between Cr and C and the MoS phase is not sufficiently suppressed, and the above effects are low. . Fe, N
The effect of adding i and Co increases as the amount increases, but when it exceeds 80%, it becomes saturated and the applicable range as a powder for sintering is limited. Therefore, use too much amount. Is not a good idea. Ni and Co, and particularly the latter, are slightly expensive as materials, and thus also contribute to cost increase. Therefore, the range of 66 to 81% is set.
【００１５】Ｍｏ：１８〜３０％
Ｍｏ量が１８％に達しないと、Ｓ成分が十分に存在して
も、ＭｏＳ相の形成が不十分になる。しかし、３０％を
超える多量を添加しても、ＭｏＳ相の生成量は飽和し、
潤滑性のそれ以上の向上は望めない。Ｍｏは高価な材料
であるから、過大な量を添加することは直ちにコスト増
に結びつく。好ましい範囲は、２０〜２８％である。Mo: 18-30% If the amount of Mo does not reach 18%, the MoS phase is not sufficiently formed even if the S component is sufficiently present. However, even if a large amount exceeding 30% is added, the amount of MoS phase produced is saturated,
Further improvement of lubricity cannot be expected. Since Mo is an expensive material, adding an excessive amount immediately leads to an increase in cost. A preferred range is 20 to 28%.
【００１６】Ｓ：１〜４％
Ｓ量が１％未満の少量では、ＭｏＳ相の形成が十分に行
なわれず、摩擦係数低減の目的が達成できない。４％を
超える多量になると、ＦｅＳのような潤滑性に寄与しな
い硫化物の生成を招き、かえって摩擦係数を高めること
になる。また、このような高いＳ量となると、合金の溶
製時にＳを均一に分布させることが困難になる。好まし
い範囲は、１．５〜３．０％である。S: 1-4% If the S content is less than 1%, the MoS phase is not sufficiently formed, and the purpose of reducing the friction coefficient cannot be achieved. If the amount exceeds 4%, sulfides such as FeS that do not contribute to lubricity are produced, and the friction coefficient is increased. Further, when such a high S content is obtained, it becomes difficult to uniformly distribute S during melting of the alloy. A preferred range is 1.5 to 3.0%.
【００１７】低摩擦合金の粉末の製造には、噴霧法が適
切であり、噴霧後の冷却は急冷が好ましい。急冷によ
り、ＦｅＳの生成が抑制された状態で、ＭｏＳ相が粉末
の粒子中に分散析出する。粉末の粒度は、１０〜２５０
μｍ程度が好適である。あまり大きい粒子は焼結に不都
合であり、一方、あまり微細であると、焼結のときに拡
散が容易であって、好ましくない反応が起こりやすくな
る。A spraying method is suitable for producing the powder of the low-friction alloy, and rapid cooling is preferable for cooling after spraying. Due to the rapid cooling, the MoS phase is dispersed and precipitated in the particles of the powder while the generation of FeS is suppressed. The particle size of the powder is 10 to 250
About μm is preferable. Particles that are too large are not suitable for sintering, while particles that are too fine tend to diffuse easily during sintering, which tends to cause undesirable reactions.
【００１８】粉末の製造法としては、もちろん噴霧法に
限らず、インゴットの粉砕によることも可能である。そ
のほか、回転電極法と呼ばれる、高速で回転する合金を
陽極とし、タングステンなどの陰極との間にアークを発
生させて陽極を部分的に溶融させ、飛散した微細な溶滴
を急冷する技術や、ロール急冷法とかスプラット急冷法
と呼ばれる、合金の溶湯を急速回転するロールで急冷し
てリボン状またはフレーク状にした後、粉砕して粉末を
得る技術なども利用できる。主としてコスト面で、また
製品粉末の粒度や形状の点からも、溶湯噴霧法、とりわ
け水噴霧による粉末製造法が有利である。The method for producing the powder is not limited to the spraying method, and it is also possible to pulverize the ingot. In addition, a technique called a rotating electrode method, which uses an alloy that rotates at high speed as an anode, generates an arc between a cathode such as tungsten to partially melt the anode, and rapidly cools fine droplets that have scattered, A technique called a roll quenching method or a splat quenching method, in which a molten alloy is rapidly cooled into a ribbon or flake by a rapidly rotating roll and then pulverized to obtain a powder, can be used. The melt spraying method, especially the powder manufacturing method by water spraying, is advantageous mainly in terms of cost and in terms of the particle size and shape of the product powder.
【００１９】粉末混合物の成形および焼結は、既知の技
術に従って実施すればよい。焼結の温度は、８００〜９
５０℃が適切である。このような比較的低い焼結温度を
採用できることは、本発明のひとつの利点である。Molding and sintering of the powder mixture may be carried out according to known techniques. Sintering temperature is 800-9
50 ° C is suitable. The ability to employ such relatively low sintering temperatures is an advantage of the present invention.
【００２０】[0020]
【実施例】以下の実施例において使用した材料は、下記
のとおりである。
（マトリクス合金）Ｃｕ−１０％Ｓｎの合金の溶湯を水
噴霧して得た粉末であって、平均粒径４５μｍのもの。
（低摩擦合金粉末）下記の成分の合金を溶製し、溶湯を
水噴霧して粉末化し、６０メッシュ（２５０μｍ）以下
の微細粉を還元性雰囲気下に焼鈍して、５種の合金粉末
を得た。低摩擦合金 Ｍｏ Ｎｉ Ｃｏ Ｓ Ｆｅ
実施例Ａ ２７．０ − − ２．６ ７０．４
Ｂ ２１．０ ４３．０ − ３．０ ３３．０
Ｃ ２１．０ − ４３．０ ３．０ ３３．０
Ｄ ２６．０ − ７１．５ ２．５ −
Ｅ ２７．０ ２０．３ ２０．０ ２．７ ３０．０
比較例Ｆ １５．０ − ５０．０ ３．０ ３２．０EXAMPLES Materials used in the following examples are as follows. (Matrix alloy) A powder obtained by spraying a molten alloy of Cu-10% Sn with water, having an average particle size of 45 μm. (Low-friction alloy powder) Alloys of the following components are melted, the molten metal is sprayed with water to be powdered, and fine powder of 60 mesh (250 μm) or less is annealed in a reducing atmosphere to obtain five alloy powders. Obtained. Low Friction Alloy Mo Ni Co S Fe Example A 27.0--2.6 70.4 B 21.0 43.0-3.0 33.0 C 21.0-43.0 3.0 33.0 D 26.0-71.5 2.5-E 27.0 20.3 20.0 2.7 30.0 Comparative example F 15.0-50.0 3.0 32.0
【００２１】［実施例１］マトリクス合金の粉末８０部
と低摩擦合金の粉末１０部とを配合し、潤滑剤としてス
テアリン酸亜鉛を１部添加して、Ｖブレンダーで混合し
た。粉末混合物を６．５トン／cm２の圧力でプレスして
圧粉成形体とし、５００℃×２時間の脱脂を行なった
後、８５０℃×１時間の焼結を行なった。比較のため、
常用の固体潤滑剤ＭｏＳ２（電解粉）を使用した場合に
ついても、焼結体を製造した。[Example 1] 80 parts of a powder of a matrix alloy and 10 parts of a powder of a low friction alloy were blended, 1 part of zinc stearate was added as a lubricant, and they were mixed with a V blender. The powder mixture was pressed at a pressure of 6.5 ton / cm 2 to obtain a powder compact, which was degreased at 500 ° C for 2 hours and then sintered at 850 ° C for 1 hour. For comparison,
Sintered bodies were also produced when the usual solid lubricant MoS 2 (electrolytic powder) was used.
【００２２】各焼結体について、ピンオンディスク摩耗
試験を行なって、摩擦係数を算出した。試験条件は、つ
ぎのとおりである。
相手材：マルテンサイト系ステンレス鋼ＳＵＳ４４０Ｃ溶製材
焼入れ・焼戻し後の硬さＨＲＣ６０ 表面仕上げ１．５μｍＲａ
摺動速度：０．５ｍ／秒 荷重：５ｋｇｆ 試験温度：室温
摺動距離：１０００ｍ 潤滑：なし
焼結材をディスク型の試験片とし、相手材をピン形状に
して組み合わせた。ピンは２本平行に配置し、ディスク
面に接触させた。A pin-on-disc wear test was performed on each sintered body to calculate the friction coefficient. The test conditions are as follows. Counterpart material: Martensitic stainless steel SUS440C Ingot material Hardness after quenching / tempering HRC60 Surface finish 1.5 μmRa Sliding speed: 0.5 m / sec Load: 5 kgf Test temperature: Room temperature Sliding distance: 1000 m Lubrication: None Sintered The material was used as a disk type test piece, and the mating material was made into a pin shape and combined. Two pins were arranged in parallel and brought into contact with the disk surface.
【００２３】結果を下に示す。低摩擦合金 Ａ Ｂ Ｃ Ｄ Ｅ Ｆ 摩擦係数 ０．１０ ０．１５ ０．１３ ０．１２ ０．１７ ０．３２The results are shown below. Low friction alloy A B C D E F Friction coefficient 0.10 0.15 0.13 0.12 0.17 0.32
【００２４】［実施例２］低摩擦合金の粉末Ａを使用
し、マトリクス材料に種々の割合で配合して、実施例１
と同様の条件で焼結体を製造した。比較のため、低摩擦
合金を配合しない場合についても試験した。測定された
摩擦係数を、下に示す。[Example 2] Powder A of a low friction alloy was used and mixed in various proportions in a matrix material, and Example 1 was used.
A sintered body was manufactured under the same conditions as in. For comparison, a test was also performed without the low friction alloy. The measured coefficient of friction is shown below.
【００２５】合金粉末（部） ０ ０．５ １ ５ １０ ２０ ３０ 摩擦係数 0.80 0.50 0.20 0.10 0.10 0.15 0.20 ４０ ５０ ６０ ７０ ８０ ９０ １００ 0.25 0.30 0.50 0.55 0.62 0.73 0.80 Alloy powder (parts) 0 0.5 1 5 10 20 30 30 Friction coefficient 0.80 0.50 0.20 0.10 0.10 0.15 0.20 40 50 50 60 70 80 80 90 100 0.25 0.30 0.50 0.55 0.62 0.73 0.80
【００２６】[0026]
【発明の効果】本発明の摺動材料用の粉末組成物は、プ
レス成形により容易に成形して高い充填密度の圧粉成形
体を製造することができ、この圧粉成形体は、８００〜
９５０℃という比較的低い温度で焼結して、摺動部材と
することができる。得られた摺動部材は、摩擦係数が低
く、かつ耐摩耗性が高いばかりでなく、耐食性も優れて
いる。マトリクス材料として、銅系すなわち、Ｃｕまた
はＣｕの３０％以内をＳｎおよびＺｎの１種または２種
で置き換えたものを使用したから、この摺動部材は熱伝
導率が高く、摩擦により発生する熱を放散させるのに好
都合である。The powder composition for a sliding material of the present invention can be easily molded by press molding to produce a powder compact having a high packing density.
The sliding member can be obtained by sintering at a relatively low temperature of 950 ° C. The obtained sliding member has not only a low friction coefficient and high wear resistance, but also excellent corrosion resistance. As the matrix material, a copper-based material, that is, Cu or a material in which 30% or less of Cu is replaced by one or two of Sn and Zn, is used. Therefore, this sliding member has high thermal conductivity and heat generated by friction. It is convenient to dissipate.
Claims (2)
金の粉末とを配合してなる、摺動材料用の粉末組成物
（％および部は重量）。 （マトリクス材料） Ｃｕ、またはＣｕの３０％以内を
ＳｎおよびＺｎの１種または２種で置き換えたもの ５
０〜９９部 （低摩擦合金） Ｆｅ、ＮｉおよびＣｏから選んだ１
種、２種または３種：６６〜８１％、Ｍｏ：１８〜３０
％およびＳ：１〜４％からなる合金 ５０〜１部1. A powder composition (% and parts by weight) for a sliding material, which comprises a powder of the following matrix material and a powder of a low friction alloy. (Matrix material) Cu, or one in which 30% or less of Cu is replaced by one or two of Sn and Zn 5
0 to 99 parts (low friction alloy) 1 selected from Fe, Ni and Co
Type, 2 types or 3 types: 66 to 81%, Mo: 18 to 30
% And S: alloy consisting of 1 to 4% 50 to 1 part
焼結してなる摺動部材。2. Molding the powder composition according to claim 1,
Sliding member made by sintering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001269209A JP2003073758A (en) | 2001-09-05 | 2001-09-05 | Powder composition for sliding member, and sliding member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001269209A JP2003073758A (en) | 2001-09-05 | 2001-09-05 | Powder composition for sliding member, and sliding member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003073758A true JP2003073758A (en) | 2003-03-12 |
Family
ID=19095068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001269209A Pending JP2003073758A (en) | 2001-09-05 | 2001-09-05 | Powder composition for sliding member, and sliding member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003073758A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006016680A (en) * | 2004-07-05 | 2006-01-19 | Tokai Carbon Co Ltd | Copper-based sintered friction material |
| WO2011132703A1 (en) | 2010-04-23 | 2011-10-27 | 株式会社栗本鐵工所 | Copper alloy for sliding member |
| JP2011214129A (en) * | 2010-03-31 | 2011-10-27 | Fuji Dies Kk | Sintered sliding member of configuration fixed to base metal and method of manufacturing the same |
-
2001
- 2001-09-05 JP JP2001269209A patent/JP2003073758A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006016680A (en) * | 2004-07-05 | 2006-01-19 | Tokai Carbon Co Ltd | Copper-based sintered friction material |
| JP2011214129A (en) * | 2010-03-31 | 2011-10-27 | Fuji Dies Kk | Sintered sliding member of configuration fixed to base metal and method of manufacturing the same |
| WO2011132703A1 (en) | 2010-04-23 | 2011-10-27 | 株式会社栗本鐵工所 | Copper alloy for sliding member |
| JPWO2011132703A1 (en) * | 2010-04-23 | 2013-07-18 | 株式会社栗本鐵工所 | Copper alloy for sliding material |
| US8906129B2 (en) | 2010-04-23 | 2014-12-09 | Kurimoto, Ltd. | Copper alloy for sliding materials |
| JP5902615B2 (en) * | 2010-04-23 | 2016-04-13 | 株式会社栗本鐵工所 | Copper alloy for sliding material |
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