JPH0826423B2 - Wear-resistant Cu alloy with excellent synchronization characteristics with mating members - Google Patents
Wear-resistant Cu alloy with excellent synchronization characteristics with mating membersInfo
- Publication number
- JPH0826423B2 JPH0826423B2 JP62040661A JP4066187A JPH0826423B2 JP H0826423 B2 JPH0826423 B2 JP H0826423B2 JP 62040661 A JP62040661 A JP 62040661A JP 4066187 A JP4066187 A JP 4066187A JP H0826423 B2 JPH0826423 B2 JP H0826423B2
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- content
- wear
- resistant
- synchronization characteristics
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910000881 Cu alloy Inorganic materials 0.000 title claims description 17
- 230000013011 mating Effects 0.000 title claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- 229910000765 intermetallic Inorganic materials 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000013585 weight reducing agent Substances 0.000 description 3
- 229910018575 Al—Ti Inorganic materials 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 229910008332 Si-Ti Inorganic materials 0.000 description 1
- 229910006749 Si—Ti Inorganic materials 0.000 description 1
- 229910003077 Ti−O Inorganic materials 0.000 description 1
- QRSFFHRCBYCWBS-UHFFFAOYSA-N [O].[O] Chemical compound [O].[O] QRSFFHRCBYCWBS-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001192 hot extrusion Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Mechanical Operated Clutches (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、摩耗係数で評価される相手部材に対する
同期特性にすぐれ、さらにすぐれた耐摩耗性と、高強度
および高靱性を有し、これらの特性が要求される自動車
のトランスミッション構造部材や変速機のシンクロナイ
ザリングなどの製造に用いるのに適したCu合金に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention has excellent synchronization characteristics with respect to a mating member evaluated by a wear coefficient, and further has excellent wear resistance, high strength and high toughness. The present invention relates to a Cu alloy suitable for use in the production of automobile transmission structural members, transmission synchronizer rings, etc.
従来、一般に、上記の自動車のトランスミッション構
造部材や変速機のシンクロナイザリングなどの製造に
は、強度および靱性、耐摩耗性、さらに高い摩擦係数が
要求されることから、これらの特性を具備したアルミニ
ウム青銅や高力黄銅をはじめ、その他多くのCu合金が用
いられている。Conventionally, strength, toughness, wear resistance, and higher friction coefficient are generally required for manufacturing the above-mentioned automobile transmission structural members and transmission synchronizer rings, and thus aluminum bronze having these characteristics is required. Many other Cu alloys are used, including high strength brass.
しかし、近年、上記各種機器の小型化および軽量化、
並びに高出力化に伴い、これらを構成する部材には、一
段と高い摩擦係数およびすぐれた耐摩耗性を具備するこ
とが要求されるようになっているが、従来Cu合金ではこ
れらの要求に十分満足に対応することができないのが現
状である。However, in recent years, downsizing and weight reduction of the above various devices,
In addition, with the increase in output, it is becoming necessary for the members that compose these materials to have a higher coefficient of friction and superior wear resistance, but conventional Cu alloys are sufficiently satisfied with these requirements. It is the current situation that we cannot deal with.
そこで、本発明者等は、上述のような観点から、上記
各種機器の小型化および軽量化、さらに高出力化に対応
できる構造部材用Cu合金を開発すべく研究を行なった結
果、重量％で（以下％は重量％を示す）、 Zn:17〜40％、Al:2〜11％、 Ti:1％超〜3.5％、Mn:0.1〜0.9％、 Si:0.005〜0.5％、酸素:50〜3000ppm、 を含有し、残りがCuと不可避不純物からなる組成、並び
に素地中に金属間化合物と酸化物が均一分散した組織を
有するCu合金は、著しく高い摩擦係数を有し、かつ耐摩
耗性にもすぐれ、さらに高強度および高靱性を有し、し
たがってこのCu合金をトランスミッション構造部材やシ
ンクロナイザリングなどの製造に用いた場合に、これら
部材で構成される各種機器の小型化および軽量化が可能
となり、かつ高性能化をはかることができるようになる
という研究結果を得たのである。この発明は、上記の研
究結果にもとづいてなされたものであって、以下に成分
組成を上記の通りに限定した理由を説明する。Therefore, the present inventors, from the above viewpoints, as a result of conducting research to develop a Cu alloy for structural members that can correspond to miniaturization and weight reduction of the above-mentioned various devices, and further high output, as a result of weight% (The following% indicates% by weight), Zn: 17-40%, Al: 2-11%, Ti: more than 1% -3.5%, Mn: 0.1-0.9%, Si: 0.005-0.5%, oxygen: 50 〜3000ppm, the rest is composed of Cu and unavoidable impurities, and the Cu alloy has a structure in which intermetallic compounds and oxides are uniformly dispersed in the matrix, and has a remarkably high friction coefficient and wear resistance. It also has high strength and high toughness. Therefore, when this Cu alloy is used for manufacturing transmission structural members and synchronizer rings, it is possible to reduce the size and weight of various devices made of these members. And it will be possible to improve performance. We had obtained the research results. The present invention has been made based on the above research results, and the reasons why the component compositions are limited as described above will be described below.
（ａ）ZnおよびAl これらの成分には、共存した状態で合金の強度および
靱性を向上させる作用があるが、その含有量がそれぞれ
Zn:17％未満およびAl:2％未満では所望の高強度および
高靱性を確保することができず、一方その含有量がZn:4
0％およびAl:11％を越えてもより一層の向上効果は現わ
れないことから、その含有量をそれぞれZn:17〜40％お
よびAl:2〜11％と定めた。(A) Zn and Al These components have the effect of improving the strength and toughness of the alloy in the coexisting state, but their contents are
If the Zn content is less than 17% and the Al content is less than 2%, the desired high strength and toughness cannot be secured, while the content of Zn: 4
Even if it exceeds 0% and Al: 11%, no further improvement effect appears, so the contents were set to Zn: 17-40% and Al: 2-11%, respectively.
（ｂ）Ti Ti成分には、CuおよびAlと結合して素地中に均一に分
散するCu−Al−Ti系金属間化合物（以下、単に金属間化
合物という）を形成するほか、酸素と結合し、AlやSiと
共にAl−Si−Ti−Ｏ系酸化物（以下、単に酸化物とい
う）を形成して、相手部材に対する同期特性を改善する
と共に、耐摩耗性を向上させる作用があるが、その含有
量が１％以下では前記作用に所望のすぐれた効果が得ら
れず、一方その含有量が3.5％を越えると、合金の靱性
が低下するようになることから、その含有量を１％超〜
3.5％と定めた。(B) Ti In the Ti component, Cu-Al-Ti-based intermetallic compound (hereinafter simply referred to as intermetallic compound) that is bonded to Cu and Al and uniformly dispersed in the matrix is formed, and is also bonded to oxygen. , Al and Si together with Al-Si-Ti-O-based oxide (hereinafter simply referred to as oxide) to improve the synchronization characteristics with respect to the mating member and to improve wear resistance. If the content is 1% or less, the desired excellent effect cannot be obtained, while if the content exceeds 3.5%, the toughness of the alloy tends to decrease, so the content exceeds 1%. ~
It was set at 3.5%.
（ｃ）Mn Mn成分には、合金の強度を一段と向上させ、かつ熱履
歴に対して合金組織を安定化する作用があるが、その含
有量が0.1％未満では前記作用に所望の向上効果が得ら
れず、一方その含有量が0.9％を越えると、溶製時に酸
化物スラグが形成し易くなり、鋳塊の健全性低下の原因
となることから、その含有量を0.1〜0.9％と定めた。(C) Mn The Mn component has the effect of further improving the strength of the alloy and stabilizing the alloy structure against heat history, but if the content is less than 0.1%, the desired effect of improving the above effect is obtained. If not obtained, on the other hand, if its content exceeds 0.9%, oxide slag is likely to be formed during melting, which causes deterioration of the soundness of the ingot, so the content was defined as 0.1 to 0.9%. It was
（ｄ）Si Si成分には、素地を強化し、もって耐摩耗性を向上さ
せる作用があるが、その含有量が0.005％未満では所望
の耐摩耗性向上効果が得られず、一方その含有量が0.5
％を越えると、靱性が低下するようになることから、そ
の含有量を0.005〜0.5％と定めた。(D) Si The Si component has the effect of strengthening the base material and thereby improving wear resistance, but if the content is less than 0.005%, the desired wear resistance improving effect is not obtained, while the content thereof is Is 0.5
%, The toughness will decrease, so the content was set to 0.005 to 0.5%.
（ｅ）酸素 酸素には、AlやTi,さらにSiと結合して素地中に均一
に分散する酸化物を形成し、もって相手部材に対する同
期特性の評価となる摩擦係数を高めるほか、耐摩耗性を
向上させる作用があるが、その含有量が50ppm未満では
前記作用に所望の効果が得られず、一方その含有量が30
00ppmを越えると、酸化物が凝集し、かつ多量となって
強度および靱性が低下するようになることから、その含
有量を50〜3000ppmと定めた。(E) Oxygen Oxygen combines with Al, Ti, and Si to form an oxide that is uniformly dispersed in the base material, thereby increasing the friction coefficient, which is the evaluation of the synchronization characteristics of the mating member, and wear resistance. However, if its content is less than 50 ppm, the desired effect cannot be obtained, and its content is 30 ppm.
If the amount exceeds 00 ppm, the oxides agglomerate and increase in amount, resulting in a decrease in strength and toughness. Therefore, the content was set to 50 to 3000 ppm.
つぎに、この発明のCu合金を実施例により具体的に説
明する。Next, the Cu alloy of the present invention will be specifically described by way of Examples.
通常の高周波炉を用い、溶解雰囲気をAr-10容量％CO
の混合ガス雰囲気とし、かつ酸素含有量の調整は、Ar-1
0容量％酸素の混合ガスを溶解末期に溶湯中に１〜10分
の範囲内の所定時間吹き込むことによって行ない、それ
ぞれ第1,2表に示される成分組成をもった溶湯を調整
し、これらの溶湯をそれぞれ水冷鋳型に鋳造し、直径:2
00mm×長さ:400mmのビレットとし、このビレットに600
〜750℃の範囲内の所定温度で熱間押出し加工を施し
て、所定径の丸棒試験片とし、ついでこの丸棒試験片に
550〜700℃の範囲内の所定温度に１時間保持後空冷の熱
処理を施すことによって本発明Cu合金１〜19および比較
Cu合金１〜９ をそれぞれ製造した。Using a normal high frequency furnace, set the melting atmosphere to Ar-10 volume% CO
The mixed gas atmosphere of and the adjustment of oxygen content is Ar-1
It is carried out by blowing a mixed gas of 0% by volume oxygen into the molten metal at a final stage of melting for a predetermined time within a range of 1 to 10 minutes, and adjusting the molten metal having the component composition shown in Tables 1 and 2, respectively. Each melt was cast in a water-cooled mold, diameter: 2
00mm x Length: 400mm billet, 600 in this billet
Hot extrusion is performed at a specified temperature within the range of ~ 750 ° C to make a round bar test piece of a specified diameter.
The Cu alloys of the present invention 1 to 19 and comparative samples were prepared by subjecting to a predetermined temperature within the range of 550 to 700 ° C. for 1 hour and then subjecting to air cooling heat treatment
Cu alloy 1-9 Were manufactured respectively.
なお、比較Cu合金１〜９は、いずれも構成成分のうち
のいずれかの成分含有量（第２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, the comparative Cu alloys 1 to 9 all contain any one of the constituent components (marked with * in Table 2)
Are out of the scope of the present invention.
つぎに、この結果得られた本発明Cu合金１〜19および
比較Cu合金１〜９について、組織をＸ線マイクロアナラ
イザーを用いて観察したところ、素地中に分散する金属
間化合物がいずれもCu,Al、およびTiを主成分とするCu
−Al−Ti系金属間化合物からなり、また同酸化物がいず
れもAl,Si,Ti、および酸素を主成分とするAl−Si−Ti−
Ｏ系酸化物からなることが確認され、かつ前記Ｘ線マイ
クロアナライザーにて前記金属間化合物および前記酸化
物の含有割合も測定し、強度を評価する目的で引張強
さ、靱性を評価する目的でシャルピー衝撃性と伸びを測
定し、さらに耐摩耗性と、部材に対する同期特性を評価
する目的で、 試料：直径3mmのピン材、 相手材:JIS・SCM420の浸炭焼入鋼（硬さ：HR C61.5）、 オイル：ギヤオイル90番、 油温:60℃、摩擦速度:2m/sec、 圧力:100kg/cm2、滑り距離:1.5km、 の条件でピン摩耗試験を行ない、比摩耗量を測定すると
共に、トルクメータから摩擦係数を算出した。これらの
結果を第3,4表に示した。Next, the structures of the resulting Cu alloys 1 to 19 of the present invention and the comparative Cu alloys 1 to 9 were observed using an X-ray microanalyzer, and it was found that the intermetallic compounds dispersed in the matrix were Cu, Cu containing Al and Ti as main components
-Al-Ti-based intermetallic compound, and all of the oxides are Al, Si, Ti, and Al-Si-Ti-containing oxygen as the main component.
For the purpose of evaluating tensile strength and toughness for the purpose of evaluating strength by confirming that it is composed of an O-based oxide and measuring the content ratios of the intermetallic compound and the oxide by the X-ray microanalyzer. For the purpose of measuring Charpy impact and elongation, and further evaluating wear resistance and synchronization characteristics to the member, sample: 3 mm diameter pin material, mating material: JIS / SCM420 carburized and hardened steel (hardness: H R C61.5), oil: gear oil No. 90, oil temperature: 60 ° C, friction speed: 2m / sec, pressure: 100kg / cm 2 , sliding distance: 1.5km. Along with the measurement, the friction coefficient was calculated from the torque meter. The results are shown in Tables 3 and 4.
第１表および第４表に示される結果から、本発明Cu合
金１〜19は、いずれもすぐれた耐摩耗性と高い摩擦係数
を示し、かつ高強度および高靱性を有するのに対して、
比較Cu合金１〜９に見られるように、構成成分のうちの
いずれかの成分含有量がこの発明の範囲から外れると、
上記の特性のうちの少なくともいずれかの特性が劣った
ものになることが明らかである。From the results shown in Table 1 and Table 4, while the Cu alloys 1 to 19 of the present invention all show excellent wear resistance and high friction coefficient, and have high strength and high toughness,
When the content of any one of the constituents is out of the range of the present invention as seen in the comparative Cu alloys 1 to 9,
It is clear that at least one of the above properties will be inferior.
上述のように、この発明の耐摩耗性Cu合金は、特に高
い摩擦係数を有し、したがって摩擦係数で評価される相
手部材に対する同期特性にすぐれているので、自動車の
トランスミッション構造部材や変速機のシンクロナイザ
リングなどの製造に用いた場合に、これら機器の小型
化、軽量化、および高出力化を可能とするなど工業上有
用な特性を有するのである。As described above, the wear-resistant Cu alloy of the present invention has a particularly high coefficient of friction and, therefore, has excellent synchronous characteristics with respect to the counterpart member evaluated by the coefficient of friction, and therefore, it can be used for transmission structural members of automobiles and transmissions. When used in the production of synchronizer rings and the like, they have industrially useful characteristics such as the miniaturization, weight reduction, and high output of these devices.
Claims (1)
び素地中に金属間化合物と酸化物が均一分散した組織、 を有することを特徴とする相手部材に対する同期特性に
すぐれた耐摩耗性Cu合金。1. By weight%, Zn: 17-40%, Al: 2-11%, Ti: more than 1% -3.5%, Mn: 0.1-0.9%, Si: 0.005-0.5%, oxygen: 50- It has a composition that contains 3000ppm, the balance of which is Cu and unavoidable impurities, and a structure in which intermetallic compounds and oxides are uniformly dispersed in the base material, and is excellent in wear resistance with excellent synchronization characteristics to the mating member. Cu alloy.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62040661A JPH0826423B2 (en) | 1987-02-24 | 1987-02-24 | Wear-resistant Cu alloy with excellent synchronization characteristics with mating members |
| KR1019880000715A KR910001011B1 (en) | 1987-02-24 | 1988-01-28 | Wear resistant Cu alloy with high strength and high toughness |
| US07/157,634 US4874439A (en) | 1987-02-24 | 1988-02-18 | Synchronizer ring in speed variator made of wear-resistant copper alloy having high strength and toughness |
| DE3805794A DE3805794C2 (en) | 1987-02-24 | 1988-02-24 | Wear-resistant copper alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62040661A JPH0826423B2 (en) | 1987-02-24 | 1987-02-24 | Wear-resistant Cu alloy with excellent synchronization characteristics with mating members |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63206440A JPS63206440A (en) | 1988-08-25 |
| JPH0826423B2 true JPH0826423B2 (en) | 1996-03-13 |
Family
ID=12586713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62040661A Expired - Lifetime JPH0826423B2 (en) | 1987-02-24 | 1987-02-24 | Wear-resistant Cu alloy with excellent synchronization characteristics with mating members |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0826423B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR910003882B1 (en) * | 1988-12-21 | 1991-06-15 | 풍산금속공업주식회사 | Cu-alloy for electric parts and the process for making |
| JP3266325B2 (en) * | 1992-09-10 | 2002-03-18 | ▲滲▼透工業株式会社 | Heat exchange backing body |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59197543A (en) * | 1983-04-22 | 1984-11-09 | Sanpo Shindo Kogyo Kk | Tough abrasion resistant copper alloy |
| JPS60174842A (en) * | 1984-02-20 | 1985-09-09 | Toyota Motor Corp | Bearing material for turbo charger |
-
1987
- 1987-02-24 JP JP62040661A patent/JPH0826423B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63206440A (en) | 1988-08-25 |
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