JPS63227751A - Fe sintered alloy synchronizing ring for transmission - Google Patents
Fe sintered alloy synchronizing ring for transmissionInfo
- Publication number
- JPS63227751A JPS63227751A JP62061783A JP6178387A JPS63227751A JP S63227751 A JPS63227751 A JP S63227751A JP 62061783 A JP62061783 A JP 62061783A JP 6178387 A JP6178387 A JP 6178387A JP S63227751 A JPS63227751 A JP S63227751A
- Authority
- JP
- Japan
- Prior art keywords
- chamfer
- synchronizing ring
- porosity
- ring
- strength
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 16
- 229910045601 alloy Inorganic materials 0.000 title claims description 11
- 239000000956 alloy Substances 0.000 title claims description 11
- 239000012535 impurity Substances 0.000 claims abstract description 13
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract 5
- 239000000203 mixture Substances 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000000470 constituent Substances 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 14
- 239000000843 powder Substances 0.000 description 11
- 230000013011 mating Effects 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 229910000521 B alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 229910002551 Fe-Mn Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/025—Synchro rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
- 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、高強度と、すぐれた耐摩耗性と相手部材と
のなじみ性を有するＦｅ系焼結合金製変速機用同期リン
グに関するものである。[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a synchronizing ring for a transmission made of an Fe-based sintered alloy that has high strength, excellent wear resistance, and compatibility with a mating member. be.
従来、一般に、変速機用同期リングは、第１図に斜視図
で例示されるように、本体の内面１が回転するテーパー
コーンとの高面圧下での断続的面接触を受け、また外周
面に、その外縁にそって所定間隔おきに設けたチャンフ
ァ２がハブスリーブのチャンファとかみ合う機能をもつ
ほか、近年の軽量化などに対する要求から、チャンファ
の数を減らしたり、これの形状を小さくすることが検討
されておシ、かかる点から、特にチャンファには。Conventionally, in general, a synchronizing ring for a transmission has an inner surface 1 of a main body that undergoes intermittent surface contact under high surface pressure with a rotating taper cone, and an outer peripheral surface of a synchronizing ring, as illustrated in a perspective view in FIG. In addition, chamfers 2 provided at predetermined intervals along the outer edge have the function of engaging with the chamfers of the hub sleeve, and in response to recent demands for weight reduction, the number of chamfers has been reduced and the shape of the chamfers has been made smaller. This is being considered, especially from the point of view of how much it costs.
強度、耐摩耗性、および相手部材とのなじみ性を具備す
ることが要求され、したがってその製造には、これらの
特性をもった高力黄銅が多用されている。なお、上記の
テーパーコーンとの摩擦面となる内面１にはＲ−パーや
樹脂、あるいはＭｏなどのコーティングが施されている
。They are required to have strength, wear resistance, and compatibility with the mating member, and therefore, high-strength brass having these properties is often used in their manufacture. The inner surface 1, which is a friction surface with the tapered cone, is coated with R-par, resin, Mo, or the like.
しかし、近年の変速機に対する高出力化および軽量化に
対する要求は厳しく、これに伴って同期リングに対して
も、よシ一段の強度、耐、１１！耗性、およびなじみ性
が要求されるようになっているが、従来の高力黄銅袋の
ものでは、これに十分対応することができないのが現状
である。However, in recent years there have been strict demands for higher output and lighter weight for transmissions, and as a result, synchronizer rings have become even stronger and more durable. Abrasion resistance and conformability are now required, but the current situation is that conventional high-strength brass bags cannot adequately meet these requirements.
そこで、本発明者等は、上記のような要求に十分対応す
ることができる変速機用同期リングを開発すべく研究を
行なった結果１本体とチャンファが、重量％で（以下、
成分組成に関するチは重量％を示す）、
Ｍｎ％Ｃｒ、およびＭｏのうちの１種または２種以上二
〇、１〜６チ。Therefore, the inventors of the present invention conducted research to develop a synchronizing ring for a transmission that can fully meet the above requirements.
20, 1 to 6 pieces of one or more of the following:
ｆ：’：０．１〜０．９チ。f:': 0.1~0.9ch.
を含有し、さらに必要に応じて。Contains and further if necessary.
Ｎ１およびＣｕのうちの１ｆｉｉまたは２ｆｉ：０．１
〜６チと、
Ｂ：０．０２〜０．５ ％、
のうちのいずれか、あるいは両方を含有し、残りがＦｅ
と不可避不純物（ただし、不可避不純物としてのＳｌ、
Ｓ、およびＰは合量で０．５％以下）からなる組成を有
するＦｅ系焼結合金で構成され、かつ少なくとも外周面
縁部にそって形成されたチャンファの空孔率を０．０５
〜５容量チとしてなるＦｅ系焼結合金製変速機用同期リ
ングは、高強度を有し、特にチャンファが耐摩耗性およ
び相手部材とのなじみ性にすぐれ、したがって変速機の
高出力化および軽量化に十分対応することができるとい
う知見を得たのである。なお、この発明の同期リングに
おいても、公知のようにテーパーコーンとの摩擦面とな
る内面には−パーや樹脂、あるいはＭＯなどのコーティ
ングを施してよく、同様な効果が得られる。1fii or 2fi of N1 and Cu: 0.1
~6%, B: 0.02% to 0.5%, or both, with the remainder being Fe.
and inevitable impurities (However, Sl as an inevitable impurity,
The porosity of the chamfer, which is made of an Fe-based sintered alloy having a composition consisting of S and P (total amount of 0.5% or less) and is formed along at least the edge of the outer peripheral surface, is 0.05.
Synchronizing rings for transmissions made of Fe-based sintered alloys with a capacity of ~5 have high strength, and the chamfer in particular has excellent wear resistance and compatibility with mating parts, thus making it possible to achieve high output and lightweight transmissions. They obtained the knowledge that it is possible to fully respond to the changes in technology. In the synchronization ring of the present invention, the inner surface that becomes the friction surface with the tapered cone may be coated with -par, resin, MO, etc., as is known, and the same effect can be obtained.
つぎに、この発明の同期リングにおいて、成分組成およ
び空孔率を上記の通りに限定した理由を説明する。Next, the reason why the component composition and porosity are limited as described above in the synchronous ring of the present invention will be explained.
（ａ） Ｍｎ、 Ｃｒ、およびＭ。(a) Mn, Cr, and M.
これらの成分には１強度および靭性な向上させるほか、
炭化物を形成して耐摩耗性を向上させ。In addition to improving strength and toughness, these ingredients
Improves wear resistance by forming carbides.
さらに硬さ上昇に寄与して、塑性流動による摩耗を防止
する作用があるが、その含有量が０．１％未満では前記
作用に所望の効果が得られず、一方その含有量が６％を
越えてもよシ一層の向上効果は現われ々いことから、経
済性を考慮して、その含有量を０．１〜６％と定めた。Furthermore, it contributes to an increase in hardness and has the effect of preventing wear due to plastic flow, but if the content is less than 0.1%, the desired effect cannot be obtained; on the other hand, if the content is less than 6%, Since it is unlikely that any further improvement will be achieved even if the content is exceeded, the content was set at 0.1 to 6% in consideration of economic efficiency.
（ｂ） ｃ
Ｃ成分には、強度および耐摩耗性を向上させる作用があ
るが、その含有量がＯ，１％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０、９ ％を越える
と、靭性が低下すると共に、相手攻撃性も増大するよう
になることから、その含有量を０，１〜０．９チと定め
た。(b) The C component has the effect of improving strength and wear resistance, but if its content is less than 1%, the desired effect cannot be obtained; If it exceeds 9%, the toughness decreases and the aggressiveness towards opponents increases, so the content was set at 0.1 to 0.9%.
（ｃ） ＮｉおよびＣｕ
これらの成分には１強度、靭性、耐摩耗性、およびなじ
み性を向上させる作用があるので、必要に応じて含有さ
れるが、その含有量が０．２チ未満では前記作用に所望
の向上効果が見られず、一方８％を越えて含有させても
よシ一層の向上効果が得られないことから、その含有量
を０．２〜８％と定めた。(c) Ni and Cu These components have the effect of improving strength, toughness, wear resistance, and conformability, so they are included as necessary, but if the content is less than 0.2 Since the desired effect of improving the above-mentioned action was not observed, and on the other hand, even if the content exceeded 8%, no further improvement effect could be obtained, so the content was determined to be 0.2 to 8%.
（ａ） Ｂ
Ｂ成分には、焼結性を向上させるほか、靭性および強度
を向上させる作用があるので、必要に応じて含有される
が、その含有量が０．０２％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０，５チを越え
ると、靭性が低下するようになることから、その含有量
を０．０２〜０．５％と定めた。(a) B In addition to improving sinterability, the B component has the effect of improving toughness and strength, so it is included as necessary, but if its content is less than 0.02%, the above effects will not be achieved. The desired improvement effect cannot be obtained, and if the content exceeds 0.5 inch, the toughness will decrease, so the content was set at 0.02 to 0.5%.
なお、不可避不純物として、 Ｓｉ％ ＳｌおよびＰ成
分を含有するが、これらの成分は含量で０．５ ％を越
えて含有するようになると、強度および靭性が低下する
ようになるので、合量で０．５％以下の含有にとどめな
ければならない。It should be noted that it contains Si% Sl and P components as unavoidable impurities, but if the content of these components exceeds 0.5%, the strength and toughness will decrease, so the total amount The content must be kept to 0.5% or less.
（ｅ） 空孔率
特に外周面縁部にそって形成されたチャンファにおける
空孔には、実用時に油溜りとなって、相手部材たるハブ
スリーブのチャソファとのなめらかなかみ合いを可能な
らしめると共に、これとのなじみ性を向上させる作用が
あるが、その割合が０．０５容量チ未満では前記作用に
所望の効果が得られず、一方その割合が５容量チを越え
ると、強度が低下するようになると共に、摩耗も増大す
るようになることから、その割合を０．０５〜５容量チ
と定めた。(e) Porosity In particular, the pores in the chamfer formed along the edge of the outer circumferential surface become oil reservoirs during practical use, and enable smooth engagement with the chamfer of the mating member, the hub sleeve. It has the effect of improving the compatibility with this, but if the ratio is less than 0.05 capacitance, the desired effect cannot be obtained, while if the ratio exceeds 5 capacitance, the strength will decrease. Since the wear also increases as the capacity increases, the ratio was determined to be 0.05 to 5 volumes.
つぎに、この発明の同期リングを実施例によシ具体的に
説明する。Next, the synchronization ring of the present invention will be specifically explained using examples.
原料粉末として、いずれも２００ ｍｅｓｈ以下の粒度
な有する。 Ｍｎ粉末、Ｍｏ粉末、ｃｒ粉末、黒鉛粉末
、Ｃｕ粉末、Ｎ１粉末、Ｆｅ−Ｂ合金（Ｂ：１５％含有
）粉末、Ｆｅ−Ｍｎ合金（Ｍｎ：２５％含有）粉末、Ｆ
ｅ−Ｃｒ合金（Ｃｒ：１Ｂ％含有）粉末、およびＦｅ粉
末を用意し、これら原料粉末をそれぞれ第１表に示され
る配合組成に配合し、通常の条件で混合した後、５、５
ｔｏｎ／ｃＩｒＬ２の圧力にて圧粉体にプレス成形し
、これら圧粉体を’７００〜９００℃の範囲内の所定温
度で仮焼結した後、これら仮焼結体の一部な温間で、６
〜８ｔｏｎ／Ｃｒ！Ｌ２の範囲内の圧力を用いて再加圧
しく第１表の備考欄に再加圧の有無を表示）、ついで、
前記仮焼結体、並びにこれの再加圧仮焼結体を、アンモ
ニア分解ガス中、１０００〜１２００℃の範囲内の所定
温度に１時間保持の条件で焼結して実質的に配合組成と
同一の成分組成をもった焼結体を成形し、さらにこれら
焼結体の一部には。All of the raw material powders have a particle size of 200 mesh or less. Mn powder, Mo powder, Cr powder, graphite powder, Cu powder, N1 powder, Fe-B alloy (B: 15% content) powder, Fe-Mn alloy (Mn: 25% content) powder, F
Prepare an e-Cr alloy (Cr: 1B% content) powder and Fe powder, blend these raw material powders into the composition shown in Table 1, mix them under normal conditions, and then
After press-forming into green compacts at a pressure of ton/cIrL2 and pre-sintering these green compacts at a predetermined temperature within the range of 700 to 900°C, a part of these pre-sintered bodies is heated at a warm temperature. ,6
~8ton/Cr! Re-pressurize using a pressure within the range of L2 (indicate whether or not re-pressurize is required in the remarks column of Table 1), then,
The pre-sintered body and the re-pressed pre-sintered body are sintered in an ammonia decomposition gas at a predetermined temperature within the range of 1000 to 1200°C for 1 hour to obtain a substantially blended composition. Sintered bodies with the same composition are molded, and some of these sintered bodies are
８００〜１０００℃の範囲内の温度で熱間鍛造を施しく
第１表の備考欄に熱間鍛造の有無を表示）、この結果と
して同じく第１表に示される各種の空孔率、並びに８１
とＳとＰからなる不可避不純物含有量を有し、内径：６
２Ｂφ×厚さ：８Ｂの寸法をもち、テーパーコーン摩擦
面に淳さ：０．８ｍｍのセルローズ繊維質系シート状ラ
イニング材を接着剤にて接着した外面チャンファ数：１
８個の本発明Ｆｅ系焼結合金製変速機用同期リング（以
下本発明焼結リングという）１〜２２および比較Ｆｅ系
焼結合金製変速機用同期リング（以下比較焼結リングと
いう）１〜６をそれぞれ製造した。(Hot forging is performed at a temperature within the range of 800 to 1000°C, and the presence or absence of hot forging is indicated in the remarks column of Table 1), and as a result, various porosity also shown in Table 1, and 81
It has an unavoidable impurity content consisting of S and P, inner diameter: 6
External chamfer number: 1 with dimensions of 2Bφ x thickness: 8B, with a 0.8mm cellulose fibrous sheet lining material bonded to the friction surface of the tapered cone with adhesive.
Eight synchronous rings for a transmission made of an Fe-based sintered alloy of the present invention (hereinafter referred to as the sintered ring of the present invention) 1 to 22 and a synchronous ring for a transmission made of a comparative Fe-based sintered alloy (hereinafter referred to as a comparative sintered ring) 1 -6 were produced, respectively.
なお、比較焼結リング１〜６は、成分組成および空孔率
のうちのいずれかの条件（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, comparative sintered rings 1 to 6 were made under any of the conditions of component composition and porosity (those marked with * in Table 1).
is outside the scope of this invention.
つぎに、この結果得られた各種の焼結リングについて、
ビッカース硬さを測定し、さらに、テーパーコーンの回
転数： ｌ Ｏ００ｒ−ｐ−ｍ−、テーパーコーンの押
付は荷重：４５ｋｇ、相手材たるテーパーコーンおよび
ノ・ブスリーブの材質：ＳＣ’Ｍ−２１の浸炭焼入れ材
、同期時間二０．３秒〜０．４秒（回数：１０万回）、
油：Ｓ５番ミッションオイノン。Next, regarding the various sintered rings obtained as a result,
The Vickers hardness was measured, and the number of revolutions of the taper cone: l O00rpm-, the load for pressing the taper cone: 45 kg, the material of the taper cone and knob sleeve as mating materials: SC'M-21. Carburized and quenched material, synchronous time 20.3 seconds to 0.4 seconds (number of times: 100,000 times),
Oil: S5 Mission Oinon.
油温ニア０℃、
の条件でのベンチ試験を行ない、いずれもリング本体に
おける割れ発生の有無、落ち込み量、および同期時の異
常の有無と、いずれもチャンファにおける最大摩耗量、
割れ発生の有無、および同期時の異常の有無をそれぞれ
測定した。これらの結果を第２表に示した。Bench tests were conducted under the conditions of an oil temperature of near 0°C, and all tests were conducted to determine the presence or absence of cracks in the ring body, the amount of depression, and the presence or absence of abnormalities during synchronization, as well as the maximum amount of wear in the chamfer,
The presence or absence of cracking and the presence or absence of abnormalities during synchronization were measured. These results are shown in Table 2.
第２表に示される結果から、本発明焼結リング１〜２２
は、いずれも高硬度を有し、かつ耐割れ性、耐摩耗性、
およびなじみ性にもすぐれているのに対して、比較焼結
リング１〜６に見られるように、構成要件のうちのいず
れかの要件でもこの発明の範囲から外れると、前記特性
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 2, the sintered rings 1 to 22 of the present invention
All have high hardness, crack resistance, wear resistance,
However, as seen in Comparative Sintered Rings 1 to 6, when any of the constituent requirements falls outside the scope of the present invention, at least one of the above characteristics It is clear that one of the characteristics will be inferior.
上述のように、この発明のＦｅ系焼結合金製変速機用同
期リングは、高強度と、特にチャンファがすぐれた耐摩
耗性および相手部材とのなじみ性を有するので、変速機
の高出力化および軽量化に伴う薄肉化および小型化に十
分満足して対応することができるのである。As mentioned above, the synchronizing ring for a transmission made of Fe-based sintered alloy of the present invention has high strength, excellent wear resistance especially in the chamfer, and compatibility with mating parts, so it can be used to increase the output of the transmission. It is also possible to satisfactorily respond to thinner walls and smaller sizes that accompany weight reduction.
第１図は変速機用同期リングを例示する斜視図である。 １・・・内面、 ２・・・チャンファ。 FIG. 1 is a perspective view illustrating a synchronizing ring for a transmission. 1...Inner side, 2...Changfa.
Claims (4)
０．１〜６％、 Ｃ：０．１〜０．９％、 を含有し、残りがＦｅと不可避不純物（ただし、不可避
不純物としてのＳｉ、Ｓ、およびＰは合量で０．５％以
下）からなる組成（以上重量％）を有するＦｅ系焼結合
金で構成され、かつ少なくとも外周面縁部にそつて形成
されたチャンファの空孔率を０．０５〜５容量％として
なるＦｅ系焼結合金製変速機用同期リング。(1) The main body and chamfer are one or more of Mn, Cr, and Mo:
0.1 to 6%, C: 0.1 to 0.9%, and the remainder is Fe and unavoidable impurities (however, the total amount of Si, S, and P as unavoidable impurities is 0.5% or less ), and the porosity of the chamfer formed along at least the edge of the outer peripheral surface is 0.05 to 5% by volume. Synchronizing ring for transmission made of metal.
０．１〜６％、 Ｃ：０．１〜０．９％、 を含有し、さらに、 ＮｉおよびＣｕのうちの１種または２種：０．１〜６％
、 を含有し、残りがＦｅと不可避不純物（ただし、不可避
不純物としてのＳｉ、Ｓ、およびＰは合量で０．５％以
下）からなる組成（以上重量％）を有するＦｅ系焼結合
金で構成され、かつ少なくとも外周面縁部にそつて形成
されたチャンファの空孔率を０．０５〜５容量％として
なるＦｅ系焼結合金製変速機用同期リング。(2) The main body and chamfer are one or more of Mn, Cr, and Mo:
0.1-6%, C: 0.1-0.9%, and further contains one or two of Ni and Cu: 0.1-6%
, and the remainder is Fe and unavoidable impurities (however, Si, S, and P as unavoidable impurities are 0.5% or less in total). A synchronizing ring for a transmission made of an Fe-based sintered alloy and having a porosity of 0.05 to 5% by volume of a chamfer formed along at least an edge of an outer peripheral surface.
０．１〜６％、 Ｃ：０．１〜０．９％、 を含有し、さらに、 Ｂ：０．０２〜０．５％、 を含有し、残りがＦｅと不可避不純物（ただし、不可避
不純物としてのＳｉ、Ｓ、およびＰは合量で０．５％以
下）からなる組成（以上重量％）を有するＦｅ系焼結合
金で構成され、かつ少なくとも外周面縁部にそつて形成
されたチャンファの空孔率を０．０５〜５容量％として
なるＦｅ系焼結合金製変速機用同期リング。(3) The main body and chamfer are one or more of Mn, Cr, and Mo:
Contains 0.1-6%, C: 0.1-0.9%, and further contains B: 0.02-0.5%, with the remainder being Fe and unavoidable impurities (however, unavoidable impurities The chamfer is made of a Fe-based sintered alloy having a composition (the total amount of Si, S, and P is 0.5% or less) (or more than 0.5% by weight), and is formed at least along the edge of the outer peripheral surface. A synchronous ring for a transmission made of Fe-based sintered alloy and having a porosity of 0.05 to 5% by volume.
０．１〜６％、 Ｃ：０．１〜０．９％、 を含有し、さらに、 ＮｉおよびＣｕのうちの１種または２種：０．１〜６％
、 Ｂ：０．０２〜０．５％、 を含有し、残りがＦｅと不可避不純物（ただし、不可避
不純物としてのＳｉ、Ｓ、およびＰは合量で０．５％以
下）からなる組成（以上重量％）を有するＦｅ系焼結合
金で構成され、かつ少なくとも外周面縁部にそつて形成
されたチャンファの空孔率を０．０５〜５容量％として
なるＦｅ系焼結合金製変速機用同期リング。(4) The main body and chamfer are one or more of Mn, Cr, and Mo:
0.1-6%, C: 0.1-0.9%, and further contains one or two of Ni and Cu: 0.1-6%
, B: 0.02 to 0.5%, and the remainder is Fe and unavoidable impurities (however, the total amount of Si, S, and P as unavoidable impurities is 0.5% or less) (or more) % by weight), and the porosity of the chamfer formed along at least the edge of the outer peripheral surface is 0.05 to 5% by volume. sync ring.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6178387A JPH076043B2 (en) | 1987-03-17 | 1987-03-17 | Fe-based sintered alloy transmission synchronization ring |
| KR1019880002322A KR910002918B1 (en) | 1987-03-13 | 1988-03-05 | Fe sintered alloy synchronizing ring for transmission |
| US07/164,534 US4943321A (en) | 1987-03-13 | 1988-03-07 | Synchronizer ring in speed variator made of iron-base sintered alloy |
| DE3808460A DE3808460A1 (en) | 1987-03-13 | 1988-03-14 | WEAR-RESISTANT IRON-BASED SINTER ALLOY AND SYNCHRONIZER RING CONSTRUCTED FROM THIS ALLOY FOR A SPEED CONTROLLER |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6178387A JPH076043B2 (en) | 1987-03-17 | 1987-03-17 | Fe-based sintered alloy transmission synchronization ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63227751A true JPS63227751A (en) | 1988-09-22 |
| JPH076043B2 JPH076043B2 (en) | 1995-01-25 |
Family
ID=13181031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6178387A Expired - Lifetime JPH076043B2 (en) | 1987-03-13 | 1987-03-17 | Fe-based sintered alloy transmission synchronization ring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH076043B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992002326A1 (en) * | 1990-08-07 | 1992-02-20 | Mitsubishi Materials Corporation | Process for producing annular part |
| JPH0466652A (en) * | 1990-07-06 | 1992-03-03 | Sumitomo Metal Mining Co Ltd | Alloy steel for injection molding powder metallurgy excellent in hardenability |
| JP2009185328A (en) * | 2008-02-05 | 2009-08-20 | Hitachi Powdered Metals Co Ltd | Iron-based sintered alloy and production method therefor |
| JP2009215630A (en) * | 2008-03-12 | 2009-09-24 | Toyota Motor Corp | Sintered connecting rod and method for production thereof |
| JP2014122396A (en) * | 2012-12-21 | 2014-07-03 | Toyota Motor Corp | Sinter forging member |
-
1987
- 1987-03-17 JP JP6178387A patent/JPH076043B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0466652A (en) * | 1990-07-06 | 1992-03-03 | Sumitomo Metal Mining Co Ltd | Alloy steel for injection molding powder metallurgy excellent in hardenability |
| WO1992002326A1 (en) * | 1990-08-07 | 1992-02-20 | Mitsubishi Materials Corporation | Process for producing annular part |
| US5290508A (en) * | 1990-08-07 | 1994-03-01 | Mitsubishi Materials Corporation | Manufacturing process for ring-shaped parts |
| JP2009185328A (en) * | 2008-02-05 | 2009-08-20 | Hitachi Powdered Metals Co Ltd | Iron-based sintered alloy and production method therefor |
| JP2009215630A (en) * | 2008-03-12 | 2009-09-24 | Toyota Motor Corp | Sintered connecting rod and method for production thereof |
| JP2014122396A (en) * | 2012-12-21 | 2014-07-03 | Toyota Motor Corp | Sinter forging member |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH076043B2 (en) | 1995-01-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |