JPH0368729A - Copper-base sintered alloy having excellent high temperature wear resistance - Google Patents
Copper-base sintered alloy having excellent high temperature wear resistanceInfo
- Publication number
- JPH0368729A JPH0368729A JP20251489A JP20251489A JPH0368729A JP H0368729 A JPH0368729 A JP H0368729A JP 20251489 A JP20251489 A JP 20251489A JP 20251489 A JP20251489 A JP 20251489A JP H0368729 A JPH0368729 A JP H0368729A
- Authority
- JP
- Japan
- Prior art keywords
- wear resistance
- copper
- based sintered
- sintered alloy
- alloy
- 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
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 47
- 239000000956 alloy Substances 0.000 title claims abstract description 47
- 229910052802 copper Inorganic materials 0.000 claims abstract description 24
- 229910000765 intermetallic Inorganic materials 0.000 claims abstract description 17
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 15
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 15
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 13
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 11
- 229910052742 iron Inorganic materials 0.000 claims abstract description 11
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 11
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 5
- 239000010949 copper Substances 0.000 claims description 50
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 239000011148 porous material Substances 0.000 claims description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 14
- 239000001301 oxygen Substances 0.000 claims description 14
- 239000012535 impurity Substances 0.000 claims description 10
- 239000011159 matrix material Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 6
- 238000005299 abrasion Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 abstract description 16
- 229910052721 tungsten Inorganic materials 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract 3
- 229910052718 tin Inorganic materials 0.000 abstract 3
- 229910000881 Cu alloy Inorganic materials 0.000 abstract 2
- 229910017755 Cu-Sn Inorganic materials 0.000 abstract 1
- 229910017927 Cu—Sn Inorganic materials 0.000 abstract 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 239000011812 mixed powder Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 20
- 230000000694 effects Effects 0.000 description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 230000007423 decrease Effects 0.000 description 10
- 230000013011 mating Effects 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 229910001128 Sn alloy Inorganic materials 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000000573 anti-seizure effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、常温から高温までのいずれの状況下におい
てもすぐれた耐摩耗性を有する銅基焼結合金、特に高温
下での耐摩耗性にすぐれた銅基焼結合金に関するもので
あり、内燃機関のガイドブツシュ、ターボチャージャー
の軸受などとして用いるに適した銅基焼結合金に関する
ものである。[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a copper-based sintered alloy that has excellent wear resistance under any conditions from room temperature to high temperature, and in particular has excellent wear resistance under high temperature conditions. The present invention relates to a copper-based sintered alloy that has excellent properties, and is suitable for use as guide bushings for internal combustion engines, bearings for turbochargers, and the like.
従来、上記各種部材の製造に、重量％で（以下％は、重
量％を示す。 ） 、Ｃｕ ２８％Ｚｎ−６％ＡＩの
代表組成を有する銅基溶製合金または鉄系焼結合金など
が用いられており、特に上記ガイドブツシュには鉄系焼
結合金が用いられていた。Conventionally, in the production of the above-mentioned various parts, copper-based molten alloys or iron-based sintered alloys having a typical composition of Cu 28% Zn-6% AI, etc., have been used in weight percent (hereinafter % refers to weight percent). In particular, an iron-based sintered alloy was used for the guide bushing.
しかし、上記の従来のＩ基溶製合金および鉄系焼結合金
は、比較的低温から高温にわたって使用した場合、高温
下において、焼付きが発生し、耐摩耗性に問題があった
。However, when the above-mentioned conventional I-based alloys and iron-based sintered alloys are used from relatively low temperatures to high temperatures, seizure occurs at high temperatures and there are problems in wear resistance.
最近の、内燃機関は、高出力化にともない、従来よりも
摺動部が一層高温に曝らされる。そのため、常温での耐
摩耗性は勿論のこと、高温下においても焼付きが発生せ
ずかつ耐摩耗性にすぐれた銅基合金の開発が強く望まれ
て↓）た。As the output of recent internal combustion engines increases, the sliding parts of internal combustion engines are exposed to higher temperatures than in the past. Therefore, there was a strong desire to develop a copper-based alloy that not only has wear resistance at room temperature but also does not seize and has excellent wear resistance even at high temperatures.
そこで、本発明者らは、上述のような観点から、−段と
すぐれた耐焼付き性および耐摩耗性を有する銅基焼結合
金を開発すべく研究を行った結果、Ｓｎ：１〜５％、
Ｍｎ：０．１〜３％、
Ｓｉ：０．１〜２％、
酸素： ０．０１〜０．５％、
を含有し、さらに必要に応じて、
（ａ） Ｃｒ、 Ｍｏ、およびＷのうち１種または２
種以上二０．１〜２％、
（ｂ） Ｆｅ、 Ｎｉ、およびＣｏのうち１種または
２種以上＝０．１〜３％、
（ｅ） Ａｎ ：０．１〜０．３％、以上（ａ）〜（
Ｃ）のうちのいずれか１種または２種以上を含有し、残
りがＣｕおよび不可避不純物からなる組成、並びに素地
中に微細な酸化物および金属間化合物が均一に分散しか
つ空孔が容量率で０．５〜１０％分布した組織を有する
銅基焼結合金は、常温および高温における耐摩耗性が向
上し、さらに素地中に微細な酸化物および空孔が存在す
ることにより高温下での耐焼付き性が向上するという知
見を得たのである。Therefore, from the above-mentioned viewpoint, the present inventors conducted research to develop a copper-based sintered alloy with significantly superior seizure resistance and wear resistance. , Mn: 0.1-3%, Si: 0.1-2%, Oxygen: 0.01-0.5%, and further contains (a) Cr, Mo, and W as necessary. 1 or 2 of these
(b) One or more of Fe, Ni, and Co=0.1-3%; (e) An: 0.1-0.3% or more. (a)～(
A composition containing one or more of C), with the remainder consisting of Cu and unavoidable impurities, and a composition in which fine oxides and intermetallic compounds are uniformly dispersed in the base material, and the volume ratio of pores is low. Copper-based sintered alloys, which have a structure with a distribution of 0.5 to 10%, have improved wear resistance at room and high temperatures, and furthermore, due to the presence of fine oxides and pores in the base material, they have improved wear resistance at high temperatures. They found that the seizure resistance was improved.
この発明は、かかる知見にもとづいてなされたものであ
って、この発明の銅基焼結合金は、上記組成によって、
素地中に、１〜４０μの粒度範囲内に分布した酸化物が
０．１〜７％の面積率で均一分散し、かつ同じく１〜２
５−の粒度範囲内に分布した金属間化合物が１〜８％の
面積率で均一分散し、さらに、１〜４０μの粒度範囲内
の空孔が０．５〜１０容量％の均一分布した組織を持ち
、これら酸化物と金属間化合物が素地中に存在すること
によって常温および高温での耐摩耗性が著しく向上し、
これら酸化物と空孔が素地中に存在することによって高
温下での耐焼付き性が著しく向上するものである。This invention was made based on this knowledge, and the copper-based sintered alloy of this invention has the above composition.
In the matrix, oxides distributed within the particle size range of 1 to 40μ are uniformly dispersed at an area ratio of 0.1 to 7%, and
A structure in which intermetallic compounds distributed within the particle size range of 5- are uniformly dispersed at an area ratio of 1 to 8%, and pores within the particle size range of 1 to 40μ are uniformly distributed at 0.5 to 10% by volume. The presence of these oxides and intermetallic compounds in the base material significantly improves wear resistance at room and high temperatures.
The presence of these oxides and pores in the matrix significantly improves the seizure resistance at high temperatures.
つぎに、この発明の銅基焼結合金の成分組成および空孔
を上記のごとく限定した理由について説明する。Next, the reason why the composition and pores of the copper-based sintered alloy of the present invention are limited as described above will be explained.
（ａ）、空孔
空孔は、摺動面に分布し、特に高温下での耐焼付き性を
改善する作用を有するが、０．５容量％未満ではその効
果が得られず、一方、１０容量％より多く分布すると強
度が低下するのみでなく、熱伝導度が低下することによ
り逆に耐熱性が悪くなり、高温下での耐焼付き性が低下
し、また耐摩耗性も低下するので好ましくない。(a) Void pores are distributed on the sliding surface and have the effect of improving seizure resistance, especially at high temperatures, but if it is less than 0.5% by volume, this effect cannot be obtained; If it is distributed in an amount larger than % by volume, not only the strength will decrease, but also the heat resistance will deteriorate due to a decrease in thermal conductivity, the seizing resistance at high temperatures will decrease, and the wear resistance will also decrease, so this is preferable. do not have.
したがって、空孔の分布量は、０．５〜１０容量％に定
めた。Therefore, the distribution amount of pores was set to 0.5 to 10% by volume.
（ｂ）、 ５ｎ
Ｓｎは、Ｃｕと共に素地を形威し、素地の強化と耐凝着
性を向上させる効果があるが、１％未満では所望の効果
がなく、一方、５％を越えて含有すると、靭性が低下す
るとともに耐熱性の劣化にともなう耐焼付き性が低下す
るようになる。(b), 5n Sn shapes the substrate together with Cu, and has the effect of strengthening the substrate and improving adhesion resistance, but if it is less than 1%, it does not have the desired effect; on the other hand, if it is contained more than 5%, This results in a decrease in toughness and a decrease in seizure resistance due to deterioration in heat resistance.
したがって、Ｓｎの含有量は、１〜５％に定めた。Therefore, the content of Sn was set at 1 to 5%.
（ｃ）、ＭｎおよびＳｉ
これらの成分は、お互いに結合して素地中に微細に分散
する金属間化合物を形成して耐摩耗性、耐焼付き性およ
び強度を向上する作用を有し、さらにＷ、Ｍｏ、または
Ｃｒとも結合して硬くて微細な金属間化合物を形成する
ほか、酸素とも結合して複酸化物を形成し、より一層耐
摩耗性および耐焼付き性を改善する作用を有するが、こ
れらの成分は、それぞれ０．１％未満ではその効果がな
く、一方、Ｍｎは３％を、Ｓｉは２％をそれぞれ越えて
含有すると逆に耐焼付き性が低下し相手攻撃性が増すの
で好ましくない。(c), Mn and Si These components combine with each other to form intermetallic compounds that are finely dispersed in the base material, and have the effect of improving wear resistance, seizure resistance, and strength. In addition to bonding with , Mo, or Cr to form a hard and fine intermetallic compound, it also bonds with oxygen to form a double oxide, which has the effect of further improving wear resistance and seizure resistance. If each of these components is less than 0.1%, there is no effect. On the other hand, if the content exceeds 3% of Mn and 2% of Si, the anti-seizure property will decrease and the aggressiveness against the opponent will increase, so it is preferable. do not have.
したがって、Ｍｎの含有量は０．１〜３％、Ｓｉの含有
量は、０．１〜２％にそれぞれ定めた。Therefore, the Mn content was determined to be 0.1 to 3%, and the Si content was determined to be 0.1 to 2%.
（ｄ）、酸素
酸素は、Ｃｕ、 Ｍｎ、およびＳｉ、並びに必要に応じ
て含有されるＡｌ、Ｗ、Ｍｏ、およびＣｒと結合して、
素地中に均一微細に分散する酸化物を形成し、常温およ
び高温での耐摩耗性を向上させ、特に耐焼付き性および
高温下での耐摩耗性を向上させる作用を有するが、０．
０１％未満では効果がなく、一方、０．５％を越えて含
有すると、酸化物の粒径が４０−を越えて粗大化するば
かりでなく、面積率で７％を越えて多くなりすぎ、合金
の強度および靭性を低下させるほか、相手攻撃性を増し
、好ましくない。(d), Oxygen combines with Cu, Mn, and Si, and optionally contained Al, W, Mo, and Cr,
It forms oxides that are uniformly and finely dispersed in the base material, and has the effect of improving wear resistance at room temperature and high temperature, especially seizure resistance and wear resistance at high temperature.
If the content is less than 0.01%, there is no effect; on the other hand, if the content exceeds 0.5%, the particle size of the oxide not only becomes coarser, exceeding 40%, but also becomes too large, exceeding 7% in terms of area ratio. This is undesirable because it not only reduces the strength and toughness of the alloy, but also increases its aggressiveness.
したがって、酸素の含有量は、０．Ｏ１〜０．５％に定
めた。Therefore, the oxygen content is 0. O was set at 1 to 0.5%.
（ｅ）、 Ｗ、 Ｍｏ 、およびＣｒ
これらの成分は、いずれも素地中に分散して強度を向上
させ、さらにＳｉおよび必要に応じて添加されるＦｅ、
Ｎｆ、およびＣｏと結合して、微細な金属間化合物を
形成し、また酸素とも結合して微細な酸化物を形成し、
耐摩耗性を向上させるとともに耐焼付き性を向上させる
作用があるが、その含有量が０．１％未満では、所望の
効果が得られず、一方、その含有量が２％を越えて含有
すると靭性が低下するので好ましくない。(e), W, Mo, and Cr These components are all dispersed in the base material to improve the strength, and furthermore, Si and Fe added as necessary,
It combines with Nf and Co to form a fine intermetallic compound, and also combines with oxygen to form a fine oxide,
It has the effect of improving wear resistance and seizure resistance, but if the content is less than 0.1%, the desired effect cannot be obtained, while if the content exceeds 2%. This is not preferable because the toughness decreases.
したがって、Ｗ、Ｍｏ、 およびＣｒの含有量は、０
．１〜２％に定めた。Therefore, the contents of W, Mo, and Cr are 0
．． It was set at 1 to 2%.
（ｆ’）、 Ｆｅ 、 Ｎｌ 、およびＣ。(f'), Fe, Nl, and C.
これらの成分は、いずれも素地中に分散して合金の強度
および靭性を向上させるとともに、Ｃｕ並びに必要に応
じて含有されるＡｆｌ、Ｗ、Ｍｏ。All of these components are dispersed in the base material to improve the strength and toughness of the alloy, and include Cu and Afl, W, and Mo contained as necessary.
およびＣｒと結合して、素地中に分散する微細な金属間
化合物を形成し、耐摩耗性を向上させるとともに耐焼付
き性を向上させる効果もあるが、その含有量が０，１％
未満では、所望の効果が得られず、一方、その含有量が
３％を越えて含有すると靭性が低下するようになるので
好ましくない。It combines with Cr and Cr to form fine intermetallic compounds that are dispersed in the base material, and has the effect of improving wear resistance and seizure resistance, but its content is 0.1%.
If the content is less than 3%, the desired effect cannot be obtained, while if the content exceeds 3%, the toughness will decrease, which is not preferable.
したがって、Ｆｅ、Ｎｉ、およびＣｏの含有量は、０．
１〜３％に定めた。Therefore, the content of Fe, Ni, and Co is 0.
It was set at 1 to 3%.
（ｇ）、 ＡＩ
ＡＮは、酸素と結合して酸化物を形成し、耐摩耗性およ
び高温下での耐焼付き性を向上させる作用があるが、そ
の含有量が０．１％未満では、所望の効果が得られず、
一方、その含有量が０．３％を越えて含有すると酸化物
の粗大化および酸化物量の増加により靭性が低下し、さ
らに相手攻撃性が増大するようになるので好ましくない
。(g), AI AN combines with oxygen to form an oxide and has the effect of improving wear resistance and seizure resistance at high temperatures, but if its content is less than 0.1%, the desired The effect of
On the other hand, if the content exceeds 0.3%, the oxide becomes coarser and the amount of the oxide increases, resulting in a decrease in toughness and an increase in aggressiveness towards opponents, which is not preferable.
したがって、ＡＩＩの含有量は、０．１〜０．３％に定
めた。Therefore, the content of AII was set at 0.1 to 0.3%.
なお、この発明の銅基焼結合金は、不可避不純物として
Ｐ、Ｍｇ、Ｚｎ、およびｐｂを含有する場合があるが、
その含有量が合計で１．５％以下であれば、合金特性が
何等損なわれるものでないので、その含有量を許容でき
る。Note that the copper-based sintered alloy of the present invention may contain P, Mg, Zn, and PB as inevitable impurities.
If the total content is 1.5% or less, the alloy properties are not impaired in any way, so the content can be tolerated.
つぎに、この発明の銅基焼結合金を実施例により具体的
に説明する。Next, the copper-based sintered alloy of the present invention will be specifically explained with reference to Examples.
原料粉末として、いずれも２００ｍｅｓｈ以下の、Ｃｕ
−３％Ｓｎ合金粉末、Ｃｕ−９％Ｓｎ合金粉末、Ｃｕ粉
末、Ｓｎ粉末、１１粉末、Ｓ＋粉末、Ｍｏ粉末、Ｗ粉末
、Ｃｒ粉末、Ｆｅ粉末、Ｎｉ粉末、およびＣｏ粉末を用
意し、これら原料粉末を配合し、Ｖ型ミキサーで３時間
粉砕混合したのち、５〜７ｔｏｎ／ｃ−の範囲内の所定
の圧力で圧粉体にプレス成型し、露点：０℃〜−３０℃
の水素ガス中、６００〜８５０℃の範囲内の所定の温度
で１時間保持の条件で焼結し、ついで空孔量をコントロ
ールするために、必要に応じて３００〜５００℃の範囲
内の所定の温度に１分間保持後、再加圧を行うことによ
り、
圧壊荷重測定用として、外径；７０關、内径＝６３關、
厚さ：１２ｍｍの寸法を有し、第１表に示される組成を
有するリングからなる本発明Ｃｕ基焼結合金１〜４４、
および比較Ｃｕ基焼結合金１〜１５を、また、
摩耗測定用として、直径： １０ｍｔｓｓ高さ：３０關
の寸法を有する丸棒および外径：１２關、内径：６１！
１１％長さ： ４５ｍｍの寸法を有するパイプからなる
本発明Ｃｕ基焼結合金１〜４４、および比較Ｃｕ基焼結
合金１〜１５を、それぞれ製造した。As raw material powder, Cu
-3%Sn alloy powder, Cu-9%Sn alloy powder, Cu powder, Sn powder, 11 powder, S+ powder, Mo powder, W powder, Cr powder, Fe powder, Ni powder, and Co powder were prepared. After blending the raw material powders and pulverizing and mixing with a V-type mixer for 3 hours, press molding into a green compact at a predetermined pressure within the range of 5 to 7 tons/c-, dew point: 0°C to -30°C.
sintered in hydrogen gas at a predetermined temperature within the range of 600 to 850°C for one hour, and then sintered at a predetermined temperature within the range of 300 to 500°C as necessary to control the amount of pores. After holding the temperature for 1 minute, pressurize again to measure the crushing load.Outer diameter: 70 mm, inner diameter: 63 mm.
Cu-based sintered alloys 1 to 44 of the present invention consisting of rings having dimensions of thickness: 12 mm and compositions shown in Table 1;
Comparative Cu-based sintered alloys 1 to 15 were also used for wear measurement: a round bar with diameter: 10 mtss height: 30 mtss, outer diameter: 12 mtss, inner diameter: 61 mtss!
11% Length: Cu-based sintered alloys 1 to 44 of the present invention and comparative Cu-based sintered alloys 1 to 15 each consisting of a pipe having a dimension of 45 mm were manufactured.
さらに、通常の溶解法により溶解し鋳造して上記寸法の
リング、丸棒およびパイプからなる従来Ｃｕ基基型製合
金製造した。Furthermore, conventional Cu-based alloys consisting of rings, round bars and pipes having the above-mentioned dimensions were manufactured by melting and casting using a conventional melting method.
なお、本発明Ｃｕ基焼結合金１〜４４は、いずれも素地
中に微細な酸化物および金属間化合物が均一に分散した
組織をもつものであった。The Cu-based sintered alloys 1 to 44 of the present invention all had a structure in which fine oxides and intermetallic compounds were uniformly dispersed in the base material.
また、比較Ｃｕ基焼結合金１〜１５は、いずれも構成成
分のうちのいずれかの成分含有量または空孔含有量（第
１表に※印を付したもの）がこの発明の範囲から外れた
ものである。In addition, all of Comparative Cu-based sintered alloys 1 to 15 have a component content or a vacancy content (those marked with * in Table 1) outside the scope of the present invention. It is something that
つぎに、この結果得られた各種のＣｕ基焼結合金につい
て、強度および靭性を評価する目的で上記リングを三分
割し、その１つを試料として常温下の圧壊荷重を測定し
、その結果を第１表に示すとともにさらに高温下での耐
摩耗性を評価する目的で下記の摩耗試験を行った。Next, for the purpose of evaluating the strength and toughness of various Cu-based sintered alloys obtained as a result, the ring was divided into three parts, one of which was used as a sample, and the crushing load at room temperature was measured. In addition to the results shown in Table 1, the following abrasion test was conducted for the purpose of evaluating the abrasion resistance at high temperatures.
摩耗試験 １
上記直径： １０ｍｍ、高さ： ３０ｍｍの寸法を有す
る丸棒を加工して直径：１．５ａｍのビンを作製し、さ
らに相手材としてクロムメツキしたＳＵＨ材製ディスク
を用意し、上記ディスクの裏側よりバーナーにてディス
クを５１０℃に加熱しながら周速：１．８ｍ／ｓｅｅで
回転せしめ、一方、上記ビンを押し付荷型：７ｋｇで上
記ディスクに押付け、５Ｗ−３０オイルを滴下しながら
摺動距Ｍ：Ｌ５−を摺動せしめ、相手材に対する高温で
の同期特性を評価する目的でビンオンディスク摩擦摩耗
試験を行い、トルクメーターにより発生トルクの変化か
ら焼付き発生の有無の調査を行い、これらの結果を第１
表に示した。Wear Test 1 A bottle with a diameter of 1.5 am was prepared by processing a round bar having the above dimensions of diameter: 10 mm and height: 30 mm. Furthermore, a chromium-plated SUH material disk was prepared as a mating material, and the diameter of the above disk was While heating the disc to 510°C with a burner from the back side, it was rotated at a circumferential speed of 1.8 m/see, while the bottle was pressed against the disc with a load of 7 kg, and while dripping 5W-30 oil. Sliding distance M: L5- was slid, and a bin-on-disc friction and wear test was performed for the purpose of evaluating the synchronization characteristics at high temperatures with respect to the mating material, and the presence or absence of seizure was investigated using a torque meter based on changes in the generated torque. and use these results as the first
Shown in the table.
摩耗試験 ■
上記外径：１２ｍｍ、内径＝６關、長さ：４５關の寸法
を有するパイプからなる各種本発明Ｃｕ基焼結合金、比
較Ｃｕ基焼結合金および従来Ｃｕ基基型製合金それぞれ
加工して外径、１１１１％内径二６．２關、長さ： ４
５ｍｍの寸法を有するパイプからなる各種本発明Ｃｕ基
焼結合金、比較Ｃｕ基焼結合金および従来Ｃｕ基基型製
合金らなる試料を製造し、一方、相手材としてＳＵＨ材
を塩浴窒化処理した直径：６．１＋ａｍ、長さ： １５
０＋ａｍの丸棒を用意した。Wear Test ■ Various Cu-based sintered alloys of the present invention, comparative Cu-based sintered alloys, and conventional Cu-based alloys, each consisting of a pipe having the above dimensions of outer diameter: 12 mm, inner diameter = 6 mm, and length: 45 mm. Processed outer diameter: 1111% inner diameter: 26.2 mm, length: 4
Samples of various inventive Cu-based sintered alloys, comparative Cu-based sintered alloys, and conventional Cu-based alloys made of pipes having a size of 5 mm were manufactured, and on the other hand, SUH material as a counterpart material was subjected to salt bath nitriding treatment. Diameter: 6.1+am, Length: 15
A round bar of 0+am was prepared.
上記相手材である丸棒を上記試料であるパイプ孔に挿入
し、相手材である丸棒の片端部をバーナーで加熱しつつ
片端部雰囲気温度を４４０℃とし、上記試料を相手材に
押付荷重：５ｋｇで押付け、５Ｗ−３０オイルを滴下し
ながら、上記相手材である丸棒を上記試料であるパイプ
孔の軸方向にストローク摺動距Ｍ ： １２＋ａｍ、
４０００ストロ一ク／分で３０分間摺動の条件で摩耗試
験を行い、摩耗量を測定し、さらに焼付きの有無および
相手材の表面状態を観察し、それらの結果を第１表に示
した。Insert the round bar that is the mating material into the pipe hole that is the specimen, heat one end of the round bar that is the mating material with a burner, set the atmospheric temperature at one end to 440°C, and press the sample against the mating material under a load. : While pressing with 5 kg and dropping 5W-30 oil, stroke sliding distance M: 12+am of the round bar that is the mating material in the axial direction of the pipe hole that is the sample.
A wear test was conducted under the conditions of sliding at 4000 strokes/min for 30 minutes, the amount of wear was measured, and the presence or absence of seizure and the surface condition of the mating material were observed. The results are shown in Table 1. .
なお、相手材の表面状態は、表面に全くキズのないもの
に○、一部焼付きキズのあるものにΔ、摩耗キズのある
ものに×を付して区別した。The surface condition of the mating material was classified by marking ○ for those with no scratches on the surface, Δ for those with some burn-in scratches, and × for those with wear scratches.
第１表に示される結果から、本発明Ｃｕ基焼結合金１〜
４４は、いずれも従来Ｃｕ基溶製合金に比べて、−段と
すぐれた耐摩耗性および耐焼付き性をもち、また比較Ｃ
ｕ基焼結合金１〜１５に見られるように、構成成分およ
び空孔のうちいずれかでもこの発明の範囲から外れると
、高温下での耐摩耗性、耐焼付き性もしくは相手攻撃性
、または常温下での強度および靭性のうち少なくともい
ずれかの性質が劣ったものとなることが明らかである。From the results shown in Table 1, Cu-based sintered alloys 1 to 1 of the present invention
44 has superior wear resistance and seizure resistance compared to conventional Cu-based alloys, and
As seen in U-based sintered alloys 1 to 15, if any of the constituent components and pores are out of the scope of the present invention, the wear resistance, seizure resistance, or attack against others at high temperatures, or at room temperature It is clear that at least one of the strength and toughness at the bottom is inferior.
上述のように、この発明のＣｕ基焼結合金は、高温下で
の耐摩耗性および同期特性を有するので、高出力化に伴
う高温度にさらされる各種機器の構造部材として十分に
対応することができ、実用に際しては、すぐれた性能を
長期にわたって発揮することにより工業上すぐれた効果
をもたらすものである。As mentioned above, the Cu-based sintered alloy of the present invention has wear resistance and synchronization characteristics at high temperatures, so it can be used satisfactorily as a structural member of various devices that are exposed to high temperatures associated with high output. In practical use, it exhibits excellent performance over a long period of time, resulting in excellent industrial effects.
Claims (8)
（以上重量％）、並びに素地中に微細な酸化物および金
属間化合物が均一に分散しかつ空孔が０．５〜１０容量
％分布した組織を有することを特徴とする高温で耐摩耗
性にすぐれた銅基焼結合金。(1) Contains Sn: 1-5%, Mn: 0.1-3%, Si: 0.1-2%, Oxygen: 0.01-0.5%, and the rest is Cu and inevitable impurities. Abrasion resistant at high temperatures, characterized by a composition of A copper-based sintered alloy with excellent properties.
１〜２％、 を含有し、残りがＣｕおよび不可避不純物からなる組成
（以上重量％）、並びに素地中に微細な酸化物および金
属間化合物が均一に分散しかつ空孔が０．５〜１０容量
％分布した組織を有することを特徴とする高温で耐摩耗
性にすぐれた銅基焼結合金。(2) Contains Sn: 1-5%, Mn: 0.1-3%, Si: 0.1-2%, Oxygen: 0.01-0.5%, and further contains Cr, Mo, and One or more types of W: 0.
1 to 2%, with the remainder being Cu and unavoidable impurities (wt%), and fine oxides and intermetallic compounds are uniformly dispersed in the matrix, and the number of pores is 0.5 to 10. A copper-based sintered alloy with excellent wear resistance at high temperatures, characterized by a structure with a volume percent distribution.
．１〜３％、 を含有し、残りがＣｕおよび不可避不純物からなる組成
（以上重量％）、並びに素地中に微細な酸化物および金
属間化合物が均一に分散しかつ空孔が０．５〜１０容量
％分布した組織を有することを特徴とする高温で耐摩耗
性にすぐれた銅基焼結合金。(3) Contains Sn: 1-5%, Mn: 0.1-3%, Si: 0.1-2%, Oxygen: 0.01-0.5%, and further contains Fe, Ni, and One or more types of Co: 0
．． 1 to 3%, with the remainder consisting of Cu and unavoidable impurities (wt%), and a composition in which fine oxides and intermetallic compounds are uniformly dispersed in the matrix and pores are 0.5 to 10%. A copper-based sintered alloy with excellent wear resistance at high temperatures, characterized by a structure with a volume percent distribution.
（以上重量％）、並びに素地中に微細な酸化物および金
属間化合物が均一に分散しかつ空孔が０．５〜１０容量
％分布した組織を有することを特徴とする高温で耐摩耗
性にすぐれた銅基焼結合金。(4) Contains Sn: 1-5%, Mn: 0.1-3%, Si: 0.1-2%, Oxygen: 0.01-0.5%, and further contains Al: 0.1 ~0.3%, with the remainder consisting of Cu and unavoidable impurities (wt%), fine oxides and intermetallic compounds are uniformly dispersed in the matrix, and pores are 0.5~0.3%. A copper-based sintered alloy with excellent wear resistance at high temperatures, characterized by having a structure with a 10% distribution by volume.
１〜２％、 Ｆｅ、Ｎｉ、およびＣｏのうち１種または２種以上：０
．１〜３％、 を含有し、残りがＣｕおよび不可避不純物からなる組成
（以上重量％）、並びに素地中に微細な酸化物および金
属間化合物が均一に分散しかつ空孔が０．５〜１０容量
％分布した組織を有することを特徴とする高温で耐摩耗
性にすぐれた銅基焼結合金。(5) Contains Sn: 1-5%, Mn: 0.1-3%, Si: 0.1-2%, Oxygen: 0.01-0.5%, and further contains Cr, Mo, and One or more types of W: 0.
1 to 2%, one or more of Fe, Ni, and Co: 0
．． 1 to 3%, with the remainder consisting of Cu and unavoidable impurities (wt%), and a composition in which fine oxides and intermetallic compounds are uniformly dispersed in the matrix and pores are 0.5 to 10%. A copper-based sintered alloy with excellent wear resistance at high temperatures, characterized by a structure with a volume percent distribution.
１〜２％、 Ａｌ：０．１〜０．３％、 を含有し、残りがＣｕおよび不可避不純物からなる組成
（以上重量％）、並びに素地中に微細な酸化物および金
属間化合物が均一に分散しかつ空孔が０．５〜１０容量
％分布した組織を有することを特徴とする高温で耐摩耗
性にすぐれた銅基焼結合金。(6) Contains Sn: 1-5%, Mn: 0.1-3%, Si: 0.1-2%, Oxygen: 0.01-0.5%, and further contains Cr, Mo, and One or more types of W: 0.
1 to 2%, Al: 0.1 to 0.3%, and the remainder is Cu and unavoidable impurities (weight%), and fine oxides and intermetallic compounds are uniformly distributed in the matrix. A copper-based sintered alloy having excellent wear resistance at high temperatures and having a structure in which pores are dispersed and distributed at 0.5 to 10% by volume.
．１〜３％、 Ａｌ：０．１〜０．３％、 を含有し、残りがＣｕおよび不可避不純物からなる組成
（以上重量％）、並びに素地中に微細な酸化物および金
属間化合物が均一に分散しかつ空孔が０．５〜１０容量
％分布した組織を有することを特徴とする高温で耐摩耗
性にすぐれた銅基焼結合金。(7) Contains Sn: 1-5%, Mn: 0.1-3%, Si: 0.1-2%, Oxygen: 0.01-0.5%, and further contains Fe, Ni, and One or more types of Co: 0
．． 1 to 3%, Al: 0.1 to 0.3%, and the remainder is Cu and unavoidable impurities (weight%), and fine oxides and intermetallic compounds are uniformly distributed in the matrix. A copper-based sintered alloy having excellent wear resistance at high temperatures and having a structure in which pores are dispersed and distributed at 0.5 to 10% by volume.
１〜２％、 Ｆｅ、Ｎｉ、およびＣｏのうち１種または２種以上：０
．１〜３％、 Ａｌ：０．１〜０．３％、 を含有し、残りがＣｕおよび不可避不純物からなる組成
（以上重量％）、並びに素地中に微細な酸化物および金
属間化合物が均一に分散しかつ空孔が０．５〜１０容量
％分布した組織を有することを特徴とする高温で耐摩耗
性にすぐれた銅基焼結合金。(8) Contains Sn: 1-5%, Mn: 0.1-3%, Si: 0.1-2%, Oxygen: 0.01-0.5%, and further contains Cr, Mo, and One or more types of W: 0.
1 to 2%, one or more of Fe, Ni, and Co: 0
．． 1 to 3%, Al: 0.1 to 0.3%, and the remainder is Cu and unavoidable impurities (weight%), and fine oxides and intermetallic compounds are uniformly distributed in the matrix. A copper-based sintered alloy having excellent wear resistance at high temperatures and having a structure in which pores are dispersed and distributed at 0.5 to 10% by volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20251489A JP2697171B2 (en) | 1989-08-04 | 1989-08-04 | Copper-based sintered alloy with excellent wear resistance at high temperatures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20251489A JP2697171B2 (en) | 1989-08-04 | 1989-08-04 | Copper-based sintered alloy with excellent wear resistance at high temperatures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0368729A true JPH0368729A (en) | 1991-03-25 |
| JP2697171B2 JP2697171B2 (en) | 1998-01-14 |
Family
ID=16458751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20251489A Expired - Lifetime JP2697171B2 (en) | 1989-08-04 | 1989-08-04 | Copper-based sintered alloy with excellent wear resistance at high temperatures |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2697171B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003033751A1 (en) * | 2001-10-16 | 2003-04-24 | International Non-Toxic Composites Corp. | Composite material containing tungsten and bronze |
| US7666246B2 (en) | 2005-09-13 | 2010-02-23 | Honda Motor Co., Ltd. | Particle dispersion copper alloy and method for producing the same |
-
1989
- 1989-08-04 JP JP20251489A patent/JP2697171B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003033751A1 (en) * | 2001-10-16 | 2003-04-24 | International Non-Toxic Composites Corp. | Composite material containing tungsten and bronze |
| US7232473B2 (en) | 2001-10-16 | 2007-06-19 | International Non-Toxic Composite | Composite material containing tungsten and bronze |
| US7666246B2 (en) | 2005-09-13 | 2010-02-23 | Honda Motor Co., Ltd. | Particle dispersion copper alloy and method for producing the same |
| US7811511B2 (en) | 2005-09-13 | 2010-10-12 | Hondo Motor Co., Ltd. | Particle dispersion copper alloy and method for producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2697171B2 (en) | 1998-01-14 |
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