JPH076044B2 - Fe-based sintered alloy transmission synchronization ring - Google Patents

Fe-based sintered alloy transmission synchronization ring

Info

Publication number
JPH076044B2
JPH076044B2 JP6178487A JP6178487A JPH076044B2 JP H076044 B2 JPH076044 B2 JP H076044B2 JP 6178487 A JP6178487 A JP 6178487A JP 6178487 A JP6178487 A JP 6178487A JP H076044 B2 JPH076044 B2 JP H076044B2
Authority
JP
Japan
Prior art keywords
based sintered
sintered alloy
less
porosity
contain
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
Application number
JP6178487A
Other languages
Japanese (ja)
Other versions
JPS63227747A (en
Inventor
英俊 阿久津
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Materials Corp
Original Assignee
Mitsubishi Materials Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Materials Corp filed Critical Mitsubishi Materials Corp
Priority to JP6178487A priority Critical patent/JPH076044B2/en
Priority to KR1019880002322A priority patent/KR910002918B1/en
Priority to US07/164,534 priority patent/US4943321A/en
Priority to DE3808460A priority patent/DE3808460A1/en
Publication of JPS63227747A publication Critical patent/JPS63227747A/en
Publication of JPH076044B2 publication Critical patent/JPH076044B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

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。TECHNICAL FIELD The present invention relates to a Fe-based sintered alloy transmission synchronizing ring having high strength, excellent wear resistance, and compatibility with a mating member. is there.

〔従来の技術〕[Conventional technology]

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、その外縁にそつて所定間隔おきに設けたチヤンフ
ア２がハブスリーブのチヤンフア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、チヤンフア
の数を減らしたり、これの形状を小さくすることが検討
されており、かかる点から、特にチヤンフアには、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、したがつてその製造には、これらの特
性をもつた高力黄銅は多用されている。なお、上記のテ
ーパーコーンとの摩擦面となる内面１にはペーパーや樹
脂、あるいはMoなどのコーテイングが施されている。2. Description of the Related Art Conventionally, a transmission synchronizing ring generally receives intermittent surface contact under high surface pressure with a rotating tapered cone of an inner surface 1 of a main body as shown in a perspective view in FIG. In addition to the function that the chain huas 2 provided on the outer edge of the hood at predetermined intervals engage with the hub sleeve chanfa, the number of the chaanhuas can be reduced or the shape thereof can be reduced due to the recent demand for weight reduction. From this point of view, in particular, it is required for Changhua to have strength, abrasion resistance, and compatibility with a mating member, and therefore, its manufacture has these characteristics. High strength brass is often used. The inner surface 1 which is a friction surface with the tapered cone is coated with paper, resin or Mo.

〔発明が解決しようとする問題点〕[Problems to be solved by the invention]

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、これに伴つて同期リングに対して
も、より一段の強度、耐摩耗性、およびなじみ性が要求
されるようになつているが、従来の高力黄銅製のもので
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, demands for higher output and lighter weight of transmissions have become strict, and accordingly, further higher strength, wear resistance, and conformability have also been required for the synchronizing ring. However, the current situation is that conventional high strength brass products cannot sufficiently cope with this.

〔問題点を解決するための手段〕[Means for solving problems]

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
行なつた結果、本体とチヤンフアが、重量％で（以下、
成分組成に関する％は重量％を示す）、 C:0.1〜0.9％、 を含有し、さらに必要に応じて、 NiおよびCuのうちの１種または２種:0.2〜８％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Si,S,お
よびＰは含量で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つ
て形成されたチヤンフアの空孔率を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は、高強度を有
し、特にチヤンフアが耐摩耗性および相手部材とのなじ
み性にすぐれ、したがつ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ペーパーや
樹脂、あるいはMoなどのコーテイングを施してよく、同
様な効果が得られる。Therefore, the inventors of the present invention have conducted research to develop a transmission synchronizing ring that can sufficiently meet the above-mentioned requirements, and as a result, the main body and the chain member have a weight% (hereinafter,
% In relation to the component composition represents% by weight), C: 0.1 to 0.9%, and, if necessary, one or two of Ni and Cu: 0.2 to 8% and B: 0.02 to Fe-based firing bond having a composition containing 0.5%, either or both of them, and the balance of Fe and unavoidable impurities (however, Si, S, and P as unavoidable impurities are 0.5% or less in content). A Fe-based sintered alloy transmission synchronizing ring having a porosity of 0.05 to 5 volumes, which is made of gold and is formed along at least the outer peripheral surface edge, has a high strength, and particularly Therefore, it was found that the material has excellent wear resistance and compatibility with a mating member, and therefore can sufficiently cope with higher output and lighter weight of the transmission. Also in the synchronizing ring of the present invention, as is well known, the inner surface serving as a friction surface with the tapered cone may be coated with paper, resin, Mo, or the like, 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 the porosity are limited as described above in the synchronizing ring of the present invention will be described.

（ａ） 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0.9％を越えると、靱
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％と定めた。(A) CC component has an effect of improving strength and wear resistance, but if its content is less than 0.1%, the desired effect cannot be obtained, while its content exceeds 0.9%. Then, as the toughness decreases, the attacking power of the opponent also increases, so the content was set to 0.1 to 0.9%.

（ｂ） NiおよびCu これらの成分には、強度、靱性、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％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
り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。(B) Ni and Cu These components have the effect of improving strength, toughness, wear resistance, and conformability, so they are contained as necessary. In addition, the desired improving effect is not observed, and on the other hand, even if the content exceeds 8%, the further improving effect cannot be obtained.
It was set at 0.2 to 8%.

（ｃ）Ｂ Ｂ成分には、焼結性を向上させるほか、靱性および強度
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％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0.02
〜0.5％と定めた。(C) BB The B component has the function of improving the toughness and strength as well as improving the sinterability, so it is contained as necessary, but if the content is less than 0.02%, it is desirable for the above function. If the improvement effect cannot be obtained and the content exceeds 0.5%,
Since the toughness is reduced, its content is 0.02
It was set at ~ 0.5%.

なお、不可避不純物として、Si,S,およびＰ成分を含有
するが、これらの成分は合量で0.5％を越えて含有する
ようになると、強度および靱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。Although Si, S, and P components are contained as unavoidable impurities, if these components exceed 0.5% in total, strength and toughness decrease, so the total amount is The content must be 0.5% or less.

（ｄ） 空孔率 特に外周面縁部にそつて形成されたチヤンフアにおける
空孔には、実用的に油溜りとなつて、相手部材たるハブ
スリーブのチヤンフア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％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％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％と定め
た。(D) Porosity In particular, the holes in the chamfer formed along the outer peripheral edge are practically used as oil reservoirs to allow smooth engagement with the chamfer of the hub sleeve, which is the mating member. However, if the ratio is less than 0.05% by volume, the desired effect cannot be obtained, while if the ratio exceeds 5% by volume, the strength is lowered. In addition, the wear also increases, so the ratio was set to 0.05 to 5% by volume.

〔実施例〕〔Example〕

つぎに、この発明の同期リングを実施例により具体的に
説明する。Next, the synchronizing ring of the present invention will be specifically described by way of examples.

原料粉末として、いずれも200mesh以下の粒度を有す
る、黒鉛粉末、Cu粉末、Ni粉末、Fe-B合金（B:15％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、5.5ton/cm2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を温間で、６〜8t
on/cm2の範囲内の圧力を用いて再加圧し（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つた焼
結体を成形し、さらにこれら焼結体の一部には、800〜1
000℃の範囲内の温度で熱間鍛造を施し（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SiとＳとＰからな
る不可避不純物含有量を有し、内径:62mmφ×厚さ:8mm
の寸法をもち、テーパーコーン摩擦面に厚さ: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
着した外面チヤンフア数:18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
〜16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）１〜５をそれぞれ製造した。As raw material powders, graphite powder, Cu powder, Ni powder, Fe-B alloy (B: 15% content) powder, and Fe powder each having a particle size of 200 mesh or less were prepared, and these raw material powders were respectively shown in Table 1. Blended to the blending composition shown in Fig. 1, mixed under normal conditions, and then press-molded into a green compact at a pressure of 5.5 ton / cm 2 , and these green compacts are heated at a predetermined temperature within the range of 700 to 900 ° C. After pre-sintering, a part of these pre-sintered body is warmed to 6-8t.
Re-pressurization is performed using a pressure within the range of on / cm 2 (the presence or absence of re-pressurization is displayed in the remarks column of Table 1), and then the pre-sintered body and the re-pressurized pre-sintered body In ammonia decomposition gas,
Sintered at a predetermined temperature within the range of 1000 to 1200 ° C for 1 hour to form a sintered body having substantially the same composition as the compounding composition, and further forming a part of these sintered bodies. Is 800-1
Hot forging was performed at a temperature in the range of 000 ° C (the presence or absence of hot forging is indicated in the remarks column of Table 1), and as a result, various porosities and Si and S also shown in Table 1 were obtained. It has an unavoidable impurity content consisting of P and P. Inner diameter: 62 mmφ x thickness: 8 mm
The outer surface of which the taper cone friction surface has a thickness of 0.8 mm and a cellulose fiber sheet lining material of 0.8 mm in thickness is adhered with an adhesive. Ring (hereinafter referred to as the present invention sintered ring) 1
16 and comparative Fe-based sintered alloy transmission synchronization rings (hereinafter referred to as comparative sintered rings) 1 to 5, respectively.

なお、比較焼結リング１〜５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。For the comparative sintered rings 1 to 5, any one of the component composition and the porosity (* marked in Table 1)
Is outside the scope of this invention Is.

つぎに、この結果得られた各種の焼結リングについて、
ビツカーフ硬さを測定し、さらに、 テーパーコーンの回転数:800r.p.m、 テーパーコーンの押付け荷重:40kg、 相手材たるテーパーコーンおよびハブスリーブの材質:S
CM-21の浸炭焼入れ材、 同期時間:0.3秒〜0.4秒（回数:10万回）、 油:85番ミツシヨンオイル、 油温:60℃、 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、いずれもチヤンフア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。Next, regarding the various sintered rings obtained as a result,
Measure the hardness of Bitzkarf, and further, the rotation speed of the taper cone: 800r.pm, the pressing load of the taper cone: 40kg, the material of the mating taper cone and hub sleeve: S
CM-21 carburized and hardened material, synchronization time: 0.3 seconds to 0.4 seconds (number of times: 100,000 times), oil: No. 85 mesh oil, oil temperature: 60 ° C. Bench test under conditions, both rings The presence or absence of cracks in the main body, the amount of depression, and the presence or absence of abnormalities during synchronization, and the maximum wear amount in the chain
The presence or absence of cracking and the presence or absence of abnormality during synchronization were measured. The results are shown in Table 2.

〔発明の効果〕〔The invention's effect〕

第２表に示される結果から、本発明焼結リング１〜16
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１〜５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つたものになる
ことが明らかである。From the results shown in Table 2, the present invention sintered rings 1 to 16
Have high hardness, crack resistance, wear resistance,
And, while being excellent in conformability, when any of the constitutional requirements deviates from the scope of the present invention as seen in Comparative Sintered Rings 1 to 5, at least the above-mentioned characteristics are obtained. It is clear that either property 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、特にチヤンフアがすぐれた耐摩耗
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 described above, the Fe-based sintered alloy transmission synchronizing ring of the present invention has high strength and, in particular, has excellent wear resistance and compatibility with the mating member, so that the transmission output can be increased. Further, it is possible to sufficiently satisfy the requirements for thinning and miniaturization associated with weight reduction.

【図面の簡単な説明】[Brief description of drawings]

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……チヤンフア。 FIG. 1 is a perspective view illustrating a transmission synchronization ring. 1 ... inside, 2 ... Jianghua.

Claims (4)

【特許請求の範囲】[Claims] 【請求項１】本体およびチヤンフアが、 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、かつ少くとも外周面縁部にそつて形成されたチヤン
フアの空孔率を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 the Changhua contain C: 0.1-0.9%, and the balance consists of Fe and unavoidable impurities (however, the total amount of Si, S, and P as unavoidable impurities is 0.5% or less). A speed change made of a Fe-based sintered alloy having a porosity of 0.05 to 5% by volume, which is composed of a Fe-based sintered alloy having a composition (above wt%) and is formed along at least an outer peripheral edge portion. Sync ring for aircraft. 【請求項２】本体およびチヤンフアが、 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:0.2〜８％、 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ヤ
ンフアの空孔率を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 the Changhua contain C: 0.1 to 0.9%, and one or two of Ni and Cu: 0.2 to 8%, and the balance Fe and inevitable impurities. (However, the total amount of Si, S, and P as unavoidable impurities is 0.5% or less) is composed of a Fe-based sintered alloy having a composition (equal to or more than wt%) and is formed along at least the outer peripheral edge portion. A synchronization ring for a transmission made of a Fe-based sintered alloy, which has a porosity of 0.05 to 5% by volume. 【請求項３】本体およびチヤンフアが、 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ヤ
ンフアの空孔率を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 the chain contain C: 0.1 to 0.9%, and further B: 0.02 to 0.5%, with the balance being Fe and unavoidable impurities (however, Si and S as unavoidable impurities). , And P are 0.5% or less in total), and the porosity of the Changhua formed at least along the edge of the outer peripheral surface is 0.05- 5% by volume Fe-based sintered alloy synchronization ring for transmissions. 【請求項４】本体およびチヤンフアが、 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:0.2〜８％、 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ヤ
ンフアの空孔率を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 the chain member contain C: 0.1-0.9%, and further contain one or two of Ni and Cu: 0.2-8%, B: 0.02-0.5%. , The balance is made of a Fe-based sintered alloy having a composition (equal to or less than 0.5% by weight) of Fe and inevitable impurities (however, Si, S, and P as inevitable impurities are 0.5% or less in total), and at least the outer circumference A Fe-based sintered alloy transmission synchronizing ring having a porosity of 0.05 to 5% by volume formed in a chamfer formed along the surface edge.
JP6178487A 1987-03-13 1987-03-17 Fe-based sintered alloy transmission synchronization ring Expired - Lifetime JPH076044B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP6178487A JPH076044B2 (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
JP6178487A JPH076044B2 (en) 1987-03-17 1987-03-17 Fe-based sintered alloy transmission synchronization ring

Publications (2)

Publication Number Publication Date
JPS63227747A JPS63227747A (en) 1988-09-22
JPH076044B2 true JPH076044B2 (en) 1995-01-25

Family

ID=13181059

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6178487A Expired - Lifetime JPH076044B2 (en) 1987-03-13 1987-03-17 Fe-based sintered alloy transmission synchronization ring

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JPS63227747A (en) 1988-09-22

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