JP2570840B2 - Combination sliding member - Google Patents
Combination sliding memberInfo
- Publication number
- JP2570840B2 JP2570840B2 JP63330412A JP33041288A JP2570840B2 JP 2570840 B2 JP2570840 B2 JP 2570840B2 JP 63330412 A JP63330412 A JP 63330412A JP 33041288 A JP33041288 A JP 33041288A JP 2570840 B2 JP2570840 B2 JP 2570840B2
- Authority
- JP
- Japan
- Prior art keywords
- combination
- sliding member
- aluminum alloy
- plating layer
- test
- 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 - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/02—Light metals
- F05C2201/021—Aluminium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/04—PTFE [PolyTetraFluorEthylene]
Description
【発明の詳細な説明】 〈産業上の利用分野〉 本発明は組合せ摺動部材に関し、詳しくは共にアルミ
ニウム合金を母材とする一対の組合せ摺動部材に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a combination sliding member, and more particularly, to a pair of combination sliding members both using an aluminum alloy as a base material.
〈従来の技術〉 自動車等に用いられる摺動部材は軽量化を図るために
母材としてアルミニウム合金を用いることが要請されて
いる。ところでアルミニウム合金自体は、摺動部材とし
て使用するには耐摩耗性が劣るという欠点を有してい
る。この欠点を補うためには、陽極酸化処理により表面
にアルマイト皮膜を形成させればよいことが知られてい
る（「機械設計」第29巻第15号、77〜86頁、1985年）。
このアルマイト皮膜を形成させたもの（アルマイト材）
は母材がアルミニウム合金であるにも拘らず耐摩耗性が
かなり向上する。<Prior Art> It is required that a sliding member used in an automobile or the like use an aluminum alloy as a base material in order to reduce the weight. By the way, the aluminum alloy itself has a drawback that the wear resistance is poor when used as a sliding member. It is known that in order to make up for this defect, an alumite film may be formed on the surface by anodic oxidation treatment ("Mechanical Design" Vol. 29, No. 15, pp. 77-86, 1985).
What formed this alumite film (alumite material)
Although the base material is an aluminum alloy, the wear resistance is considerably improved.
しかし一対の組合せ摺動部材の両方を共にアルマイト
材にすると同種材が摺動することとなるため、かえって
摩耗が多くなる。したがって従来より、例えばピストン
型式の軽量摺動部材としては、アルミニウム合金に陽極
酸化処理してアルマイト材としたものをボディ側部材と
し、耐摩耗性に優れた鋼や熱処理された鋼をバルブ側部
材とした組合せ摺動部材が用いられてきた。However, if both of the pair of combined sliding members are made of an anodized material, the same kind of material slides, so that abrasion increases. Therefore, conventionally, for example, as a piston type lightweight sliding member, a body made of anodized aluminum alloy and made into anodized material is used as a body side member, and steel having excellent wear resistance or heat-treated steel is used as a valve side member. The combination sliding member described above has been used.
〈発明が解決しようとする課題〉 しかしながら該組合せ摺動部材がピストン型式で使用
されるとなると、潤滑油の温度変化によって生じる以下
のような問題点があった。<Problems to be Solved by the Invention> However, when the combination sliding member is used in a piston type, there are the following problems caused by a change in lubricating oil temperature.
即ち、ボディ側（アルミニウム合金＋アルマイト層）
とバルブ側（鉄系材）とでは熱膨張係数が異なるため
に、低温時には摺動部位のクリアランスが小さくなりス
ティック（バルブ摺動不良）が発生し、また高温時には
クリアランス大きくなって油洩れが発生するという問題
があった。そのうえ高温で使用された後に放冷されるこ
とによって、潤滑油回路中の異物がバルブとボディ間に
残り、スティックを起こすという問題もあった。That is, body side (aluminum alloy + alumite layer)
And the valve side (iron-based material) have different coefficients of thermal expansion, so at low temperatures the clearance of the sliding part becomes smaller and sticks (valve sliding failure) occur, and at higher temperatures the clearance increases and oil leakage occurs There was a problem of doing. In addition, there is also a problem in that, after being used at a high temperature and allowed to cool, foreign matter in the lubricating oil circuit remains between the valve and the body, causing sticking.
その対策としては、ボディ側、バルブ側ともに熱膨張
係数ができるだけ同じである部材を用いればよいことは
勿論であり、そのためバルブ側にもアルマイト化したア
ルミニウム合金を用いることが考えられ、一部実用化さ
れている。この組合せによると上記のクリアランス変化
等による不具合は発生しないが、前述したとおりアルマ
イト層どうしの摺動では耐摩耗性に劣るという問題点が
ある。As a countermeasure, it is a matter of course to use a member having the same thermal expansion coefficient on both the body side and the valve side. Therefore, it is conceivable to use an anodized aluminum alloy on the valve side. Has been Although this combination does not cause the above-described inconvenience due to a change in clearance or the like, there is a problem in that the sliding between the alumite layers is inferior in wear resistance as described above.
この点に関し本発明者等は、アルマイト材の相手材と
して熱処理により硬さをHv650以上としたNi−Ｐ合金メ
ッキ層が形成されているアルミニウム合金を提案し、あ
る程度の解決をみている。しかしこれとて完全に満足で
きるものではなく耐摩耗性、耐焼付性を更に高めること
が要請されている。In this regard, the present inventors have proposed an aluminum alloy having a Ni-P alloy plating layer having a hardness of Hv 650 or more formed by heat treatment as a counterpart to the alumite material, and have seen some solutions. However, it is not completely satisfactory, and it is required to further improve wear resistance and seizure resistance.
本発明はこの要請に応える目的でなされたものであ
り、軽量で温度によるクリアランス変化を起こさず、更
に優れた耐摩耗性、耐焼付性を示す組合せ摺動部材を提
供することが本発明の解決しようとする課題である。SUMMARY OF THE INVENTION The present invention has been made for the purpose of responding to this demand, and it is an object of the present invention to provide a combined sliding member which is lightweight, does not cause a clearance change due to temperature, and exhibits excellent wear resistance and seizure resistance. It is an issue to be tried.
〈課題を解決するための手段〉 本発明の組合せ摺動部材は、共にアルミニウム合金を
母材とする一対の摺動部材であって、一方の部材の摺動
面にアルマイト層が形成され、他方の部材の摺動面には
四フッ化エチレン樹脂（PTFE）含有Ni−Ｐ複合メッキ層
が形成されている組合せ摺動部材であって、 上記複合メッキ層中の四フッ化エチレン樹脂の含有量
は16〜30Vol％であることを特徴とする。<Means for Solving the Problems> The combination sliding member of the present invention is a pair of sliding members both having an aluminum alloy as a base material, and an alumite layer is formed on a sliding surface of one of the members, and A combination sliding member in which a Ni-P composite plating layer containing tetrafluoroethylene resin (PTFE) is formed on a sliding surface of the member, wherein the content of the tetrafluoroethylene resin in the composite plating layer is Is characterized by being 16 to 30% by volume.
一方の部材であるアルマイト層形成部材は常法に従
い、アルマイト層を形成し得るアルミニウム合金を電解
浴、例えば硫酸浴、シュウ酸浴、これらの混酸浴等を用
い、陽極側で処理することにより得られる。このアルマ
イト皮膜の硬さはHv150以上であればよい。それ以下で
はアルマイト層の摩耗が急増する。The alumite layer forming member, one of the members, is obtained by treating an aluminum alloy capable of forming an alumite layer in an electrolytic bath, for example, a sulfuric acid bath, an oxalic acid bath, or a mixed acid bath thereof, on the anode side according to a conventional method. Can be The hardness of this alumite film may be Hv150 or more. Below that, the wear of the alumite layer increases rapidly.
他方の部材（相手材）である四フッ化エチレン樹脂
（PTFE）含有Ni−Ｐ複合メッキ層形成部材は、PTFE粒子
を適当に分散させたNi−Ｐメッキ液でアルミニウム合金
にメッキ処理を施すことにより得られる。メッキ方法自
体は無電解・化学メッキが簡便であり、直接アルミニウ
ム合金に施してもよいが、密着性を確実なものとするに
は被処理部を脱脂、酸洗いした後、或は更に亜鉛置換メ
ッキ処理した後、上記メッキ液に所望の厚さのメッキ層
が得られるまで浸漬すればよい。なお上記方法によら
ず、電解析出法により上記複合メッキ層を形成させても
よいことは勿論である。The other member (counterpart), the Ni-P composite plating layer forming member containing tetrafluoroethylene resin (PTFE), is obtained by plating aluminum alloy with a Ni-P plating solution in which PTFE particles are appropriately dispersed. Is obtained by The plating method itself is simple electroless and chemical plating, and it may be applied directly to the aluminum alloy.However, in order to ensure the adhesion, the part to be treated is degreased and pickled, or further substituted with zinc. After plating, it may be immersed in the plating solution until a plating layer having a desired thickness is obtained. It is needless to say that the composite plating layer may be formed by an electrolytic deposition method instead of the above method.
上記複合メッキ層中のPTFEの含有量は16〜30Vol％と
する。またNi−Ｐメッキ中のＰは２〜13wt％であるのが
好ましい。これは２％未満では熱処理を行なっても十分
な硬さが得られず、メッキ層の摩耗量が増加し、13％を
越えるＰ量では硬さは得られてもメッキ層の靱性が低下
するためメッキ層の剥離が発生し易くなるからである。
また、上記複合メッキ層の硬さはHv400以上とするのが
好ましく、メッキ処理後の熱処理で達成し得る。該熱処
理はNi−Ｐ複合メッキ層を加熱することによりNi−Ni3P
共晶体として硬化させる処理である。その硬さは熱処理
の温度や時間で調節することができ、例えばHv650とす
るには250℃×1hrで熱処理を行なえばよい。The content of PTFE in the composite plating layer is 16 to 30% by volume. Further, the content of P in the Ni-P plating is preferably 2 to 13% by weight. If the content is less than 2%, sufficient hardness cannot be obtained even by heat treatment, and the wear amount of the plating layer increases. If the P content exceeds 13%, the hardness is obtained but the toughness of the plating layer decreases. This is because peeling of the plating layer easily occurs.
The hardness of the composite plating layer is preferably Hv400 or more, which can be achieved by heat treatment after plating. The heat treatment is performed by heating the Ni-P composite plating layer so that the Ni-Ni 3 P
This is a process of curing as an eutectic. The hardness can be adjusted by the temperature and time of the heat treatment. For example, in order to obtain Hv650, the heat treatment may be performed at 250 ° C. × 1 hr.
本発明の組合せ摺動部材の母材である両アルミニウム
合金の熱膨張係数差は３×10-6/℃以下であるのが好ま
しい。これ以上では高温（150℃）で使用し放冷した場
合、潤滑油回路中の異物がボディとバルブ間に残りステ
ィックを起こしやすく、３×10-6/℃以下では異物が残
ってもボディとバルブ間に若干の引っ掻き痕を生じさせ
るがスティックが発生することはないからである。The difference in thermal expansion coefficient between the two aluminum alloys, which are the base materials of the combined sliding member of the present invention, is preferably 3 × 10 −6 / ° C. or less. Above this, when used at high temperature (150 ° C) and allowed to cool, foreign matter in the lubricating oil circuit tends to remain between the body and the valve, causing sticks below 3 × 10 -6 / ° C. This is because a slight scratch is formed between the valves, but no stick is generated.
したがって本組合せ摺動部材はピストン型式の摺動部
材として、特にはオートマチックトランスミッションの
油路切替装置のボディおよびバルブ用の組合せ摺動部材
として好適である。Therefore, the present combination sliding member is suitable as a piston type sliding member, particularly as a combination sliding member for a body and a valve of an oil passage switching device of an automatic transmission.
〈実施例〉 以下に本発明の実施例を比較例と共に説明するが、こ
れにより本発明は何ら限定されるものではない。<Examples> Hereinafter, examples of the present invention will be described together with comparative examples, but the present invention is not limited thereto.
実施例１ アルミニウム合金（JIS規格ADC12）を用いて大きさが
外径35mm、内径30mm、巾10mmの円筒片を作成し、ついで
その外周面に硫酸浴を用いて陽極酸化処理を施すことに
より、厚さ10μｍ、硬さHv300の酸化皮膜（アルマイト
層）を有する円筒試験片を作成した。Example 1 A cylindrical piece having an outer diameter of 35 mm, an inner diameter of 30 mm, and a width of 10 mm was prepared using an aluminum alloy (JIS standard ADC12), and then anodized using a sulfuric acid bath on the outer peripheral surface thereof. A cylindrical test piece having an oxide film (alumite layer) having a thickness of 10 μm and a hardness of Hv300 was prepared.
一方、16mm×16mm×10mmのアルミニウム合金鋳物（JI
S規格AC1A）片に、スルファミン酸ニッケル系を基本と
したメッキ浴（スルファミン酸ニッケル400g/、次亜
リン酸ナトリウム10g/、塩化ニッケル30g/、ホウ酸
35g/及びpH調整剤小量）へPTFE粒子（平均粒径0.3
μ）を30g/分散させたメッキ液に浸漬し、電流密度2A
/dm2、pH4.2、温度40℃、の条件で厚さ20μｍのPTFE含
有Ni−Ｐ複合メッキ層（PTFE含有量:25Vol％、Ni−Ｐマ
トリックス中のＰ量:8％）を形成させた後、300℃×1hr
の熱処理を行なうことにより複合メッキ層の硬さをHv55
0とした、16mm×10mm面を試験面とするサイコロ試験片
を製作した。On the other hand, a 16mm x 16mm x 10mm aluminum alloy casting (JI
Nickel sulfamate-based plating bath (nickel sulfamate 400g /, sodium hypophosphite 10g /, nickel chloride 30g /, boric acid)
PTFE particles (average particle size 0.3)
μ) is immersed in a plating solution containing 30 g / dispersed, and the current density is 2 A
A 20 μm thick PTFE-containing Ni-P composite plating layer (PTFE content: 25 Vol%, P content in Ni-P matrix: 8%) was formed under the conditions of / dm 2 , pH 4.2, and temperature of 40 ° C. After that, 300 ℃ × 1hr
Heat treatment to increase the hardness of the composite plating layer to Hv55
A dice test piece having a 16 mm × 10 mm surface as a test surface was prepared.
該サイコロ試験片と上記円筒試験片を組合せて下記の
摩耗試験に供した。The dice test piece and the cylindrical test piece were combined and subjected to the following abrasion test.
比較例１〜４ 一方の円筒試験片及び他方のサイコロ試験片が第１表
に示す部材でなる、各種の組合せ試験片（比較例１〜
４）を製作し、実施例１のと同様に下記摩耗試験に供し
た。Comparative Examples 1 to 4 Various combination test pieces (one of the cylindrical test pieces and the other of the dice test pieces) made of the members shown in Table 1 (Comparative Examples 1 to 4)
4) was manufactured and subjected to the following abrasion test in the same manner as in Example 1.
なお比較例４のサイコロ試験片は、アルミニウム合金
鋳物（JIS規格AC1A）片を、硫酸ニッケル、次亜燐酸ソ
ーダ、アルキルヒドロキシカルボン酸（錯化剤）、アル
キルジカルボン酸（反応促進剤）、安定剤、pH調整剤を
適当に含んでなる浴温90〜95℃のメッキ液に50分程度浸
漬し、厚さ20μｍのNi−８％Ｐ合金メッキ層を形成させ
た後、350℃×1hrの熱処理を行ない、合金メッキ層の硬
さをHv800とすることにより製作されたものである。The dice test piece of Comparative Example 4 was made of an aluminum alloy casting (JIS standard AC1A) piece, nickel sulfate, sodium hypophosphite, alkylhydroxycarboxylic acid (complexing agent), alkyldicarboxylic acid (reaction accelerator), and stabilizer. Immersed in a plating solution containing an appropriate pH adjuster at a bath temperature of 90 to 95 ° C. for about 50 minutes to form a Ni-8% P alloy plating layer having a thickness of 20 μm, followed by a heat treatment at 350 ° C. for 1 hour. And the hardness of the alloy plating layer is set to Hv800.
母材における（ ）内は規格を表わし、表面における
（ ）内は膜厚、硬度を表わす。 The parentheses in the parent material indicate the standard, and the parentheses in the surface indicate the film thickness and hardness.
摩耗試験 実施例１及び比較例１〜４の各組合せ試験片を順次摩
擦摩耗試験機にセットし、円筒試験片の外周面とサイコ
ロ試験片の16mm×16mm面を接触させ、それら試験片の接
触部に温度25℃の潤滑油（ATF:商品名「デクスロンI
I」）を供給しながら荷重60kg、回転数160rpmにて円筒
試験片を30分間回転させる摩耗試験を行なった。なお円
筒試験片及びサイクロ試験片の表面粗さはそれぞれ0.8
μRz及び1.2μRzである。この摩耗試験結果を第１図に
示す。該図中、上半分は円筒試験片の摩耗量（摩耗減量
mg）を表わしており、下半分はサイクロ試験片の摩耗量
（摩耗痕深さμ）を表わしている。Wear test Each of the combination test pieces of Example 1 and Comparative Examples 1 to 4 was sequentially set on a friction and wear tester, and the outer peripheral surface of the cylindrical test piece and the 16 mm × 16 mm surface of the dice test piece were brought into contact with each other. Lubricating oil with a temperature of 25 ° C (ATF: trade name “DEXRON I
An abrasion test was performed in which a cylindrical test piece was rotated for 30 minutes at a load of 60 kg and a rotation speed of 160 rpm while supplying “I”). The surface roughness of the cylindrical specimen and the cyclo specimen was 0.8
μRz and 1.2 μRz. FIG. 1 shows the results of the wear test. In the figure, the upper half shows the amount of wear of the cylindrical test piece (wear reduction).
mg), and the lower half represents the amount of abrasion of the cyclo test piece (abrasion scar depth μ).
第１図から判るように、実施例１の組合せ試験片は比
較例３のアルマイト材と鋼材の組合せ試験片に優るとも
劣らない耐摩耗性を示し、母材が共にアルミ合金でなる
組合せの中では比較例４の組合せ試験とならんで格段に
優れた耐摩耗性を示した。As can be seen from FIG. 1, the combination test piece of Example 1 shows abrasion resistance not inferior to that of the combination test piece of the alumite material and the steel material of Comparative Example 3; Showed extremely excellent wear resistance along with the combination test of Comparative Example 4.
実施例２及び比較例５〜８ 実施例２及び比較例５〜８として、それぞれ実施例１
及び比較例１〜４と同一の材質組合せ（Ａ〜Ｅ）ででき
た、いずれも外径25.4cm、内径20mm、長さ10mmの組合せ
円筒試験片を作成し下記焼付試験に供した。Example 2 and Comparative Examples 5 to 8 Example 2 and Comparative Examples 5 to 8 were Example 1 respectively.
Further, a combination cylindrical test piece having an outer diameter of 25.4 cm, an inner diameter of 20 mm, and a length of 10 mm, which was made of the same material combination (A to E) as in Comparative Examples 1 to 4, was prepared and subjected to the following baking test.
焼付試験 実施例２及び比較例５〜８の各組合せ円筒試験片の円
筒端面どうしを接触させ、潤滑油（商品名「キャッスル
モータオイル」5w−50）を供給し、回転数を1000rpmに
して押圧荷重を10kgより700kgまで段階的に増加させ、
これにより焼付限度荷重を測定する焼付試験を行なっ
た。その結果を第２表に示す。該表には荷重150kg時の
摩耗係数μ測定結果も併せて示す。Seizure test The cylindrical end faces of the combined cylindrical test pieces of Example 2 and Comparative Examples 5 to 8 were brought into contact with each other, lubricating oil (trade name “Castle Motor Oil” 5w-50) was supplied, and the rotation speed was set to 1000 rpm and pressed. Increase the load gradually from 10kg to 700kg,
Thus, a baking test for measuring a baking limit load was performed. Table 2 shows the results. The table also shows the measurement results of the wear coefficient μ at a load of 150 kg.
第２表から判るように実較例のものに比べ耐焼付性に
優れていることが確認された。 As can be seen from Table 2, it was confirmed that the seizure resistance was superior to that of the comparative example.
Ni−Ｐ複合メッキ層中のPTFE含有量の検討 Ni−Ｐ複合めっき中のPTFE量が耐摩耗性、耐焼付性、
摩擦特性にどのような影響を与えるかを調べるため、実
施例１の組合せＥのサイコロ試験６における複合めっき
層形成条件（PTFEの分散量）を変化させてPTFE含有量の
異なった試験片を製作し、それらを用いて前記同様の摩
耗試験及び焼付試験を行なった。その結果を第３表に示
す。Examination of the PTFE content in the Ni-P composite plating layer The amount of PTFE in the Ni-P composite plating depends on the abrasion resistance, seizure resistance,
In order to investigate the effect on the frictional characteristics, test pieces having different PTFE contents were manufactured by changing the conditions for forming the composite plating layer (the dispersion amount of PTFE) in the dice test 6 of the combination E of Example 1. Using these, the same wear test and seizure test as described above were performed. Table 3 shows the results.
PTFE量14Vol％では固体潤滑剤としてPTFEが十分役割
をはたさず耐焼付性が低下し、150kg荷重時の摩擦係数
も高くなる。またPTFE量が32Vol％以上では耐焼付性は
良好であるか、固体潤滑剤の量が多いために、強度の低
下によると思われるサイコロ試験片の摩耗の増加がみら
れた。以上のことよりPTFE量としては16〜30Vol％が最
適であることがわかる。 When the amount of PTFE is 14 Vol%, PTFE does not play a sufficient role as a solid lubricant, seizure resistance is reduced, and the coefficient of friction under a 150 kg load is increased. When the PTFE content was 32 Vol% or more, the seizure resistance was good or the amount of the solid lubricant was large, so that an increase in the wear of the dice test piece, which was considered to be due to a decrease in strength, was observed. From the above, it can be seen that the optimum amount of PTFE is 16 to 30% by volume.
実施例３及び比較例９、10 第２図はオートマチックトランスミッションに内蔵さ
れる油圧切替装置３を示すものである。そのバルブボデ
ィ１を、アルミニウム合金（JIS規格ADC10）を用いアル
マイト化処理して製作した。またシフトバルブ２を、第
１表に示したＢ、Ｃ、及びＥの３種類のサイコロ試験片
と同じ材質のもので製作した。これらバルブ２と上記ボ
ディ１を組合せて得られた油圧切替装置３を実際に車両
のトランスミッションに取付けて、バルブの90000サイ
クル稼動（100hr稼動）後の損傷状況を比較する耐久試
験に付した。なおバルブの外径を10mm、20℃におけるバ
ルブとボディのクリアランスを40μｍとした。その結果
をまとめて第４表に示す。比較例10のアルマイト材と焼
入れ鋼の組合せＣで製作されたものは40,000サイクル稼
動後にスティックが生じてバルブが作動しなくなった。
また比較例９のアルマイト材どうしの組合せＢで製作さ
れたものは、スティックは起らないもののボディ及びバ
ルブとも摩耗が大きかった。それに比べ実施例３の組合
せＥで製作されたものは第４表から判るように良好な成
績を示した。Example 3 and Comparative Examples 9 and 10 FIG. 2 shows a hydraulic pressure switching device 3 built in an automatic transmission. The valve body 1 was manufactured by alumite treatment using an aluminum alloy (JIS standard ADC10). The shift valve 2 was made of the same material as the three types of dice test pieces B, C, and E shown in Table 1. The hydraulic switching device 3 obtained by combining the valve 2 and the body 1 was actually mounted on a transmission of a vehicle, and subjected to an endurance test for comparing the damage state of the valve after 90,000 cycles of operation (100 hours of operation). The outer diameter of the valve was 10 mm, and the clearance between the valve and the body at 20 ° C. was 40 μm. Table 4 summarizes the results. In the case of Comparative Example 10 manufactured using the combination C of the alumite material and the hardened steel, a stick was generated after 40,000 cycles of operation, and the valve did not operate.
In the case of the combination B of the alumite materials of Comparative Example 9, although the stick did not occur, the body and the valve were significantly worn. On the other hand, those manufactured by the combination E of Example 3 showed good results as can be seen from Table 4.
〔発明の効果〕 本発明の組合せ摺動部材は、上述したように従来の組
合せ摺動部材と比較して、耐焼付性、耐摩耗性の点で極
めて優れた性能を示す。 [Effects of the Invention] As described above, the combination sliding member of the present invention exhibits extremely excellent performance in terms of seizure resistance and wear resistance as compared with the conventional combination sliding member.
従って、苛酷な摺動条件下に置かれるピストン型式の
摺動部材として用いることができる。そしてピストン型
式で用いた場合、本発明の組合せ摺動部材は共に母材が
アルミ合金であるため、熱膨張によるクリアランス変化
が少なく、スティックを発生させない。Therefore, it can be used as a piston type sliding member placed under severe sliding conditions. When the piston is used in a piston type, both of the combination sliding members of the present invention have a small change in clearance due to thermal expansion and do not generate sticks because the base material is an aluminum alloy.
その上、アルミニウム合金と鋼材の組合せ摺動部材よ
りも耐摩耗性、耐焼付性に優れているため、それに代え
て本組合せ摺動部材を用いることができ、摺動部品の軽
量化に寄与する。In addition, the combination sliding member is superior in wear resistance and seizure resistance to the combination sliding member of aluminum alloy and steel, so that the combination sliding member can be used instead, contributing to weight reduction of the sliding component. .
第１図は本発明の実施例の組合せ摺動部材の摩耗試験結
果を比較例のそれと対比して示すグラフ、 第２図はオートマチックトランスミッションに用いられ
る油路切替装置のピストン型摺動部の構造を示す図であ
る。 図中、 １……バルブボディ ２……シフトバルブFIG. 1 is a graph showing a wear test result of a combination sliding member according to an embodiment of the present invention in comparison with that of a comparative example, and FIG. 2 is a structure of a piston type sliding portion of an oil passage switching device used in an automatic transmission. FIG. In the figure, 1 ... Valve body 2 ... Shift valve
Claims (1)
摺動部材であって、一方の部材の摺動面にアルマイト層
が形成され、他方の部材の摺動面には四フッ化エチレン
樹脂含有Ni−Ｐ複合メッキ層が形成されている組合せ摺
動部材であって、 上記複合メッキ層中の四フッ化エチレン樹脂の含有量は
16〜30Vol％であることを特徴とする組合せ摺動部材。1. A pair of sliding members each having an aluminum alloy as a base material, wherein an alumite layer is formed on a sliding surface of one member and an ethylene tetrafluoride resin is formed on a sliding surface of the other member. A combination sliding member in which a Ni-P composite plating layer is formed, wherein the content of the tetrafluoroethylene resin in the composite plating layer is:
A combination sliding member characterized by having a content of 16 to 30 Vol%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63330412A JP2570840B2 (en) | 1988-12-27 | 1988-12-27 | Combination sliding member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63330412A JP2570840B2 (en) | 1988-12-27 | 1988-12-27 | Combination sliding member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02173472A JPH02173472A (en) | 1990-07-04 |
| JP2570840B2 true JP2570840B2 (en) | 1997-01-16 |
Family
ID=18232313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63330412A Expired - Fee Related JP2570840B2 (en) | 1988-12-27 | 1988-12-27 | Combination sliding member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2570840B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6089843A (en) | 1997-10-03 | 2000-07-18 | Sumitomo Electric Industries, Ltd. | Sliding member and oil pump |
| WO2006084427A1 (en) * | 2005-02-11 | 2006-08-17 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Valve for control of a clutch in a gearbox of a vehicle |
| US7383806B2 (en) * | 2005-05-18 | 2008-06-10 | Caterpillar Inc. | Engine with carbon deposit resistant component |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5146417A (en) * | 1974-10-18 | 1976-04-20 | Sanyo Electric Co | REITOYOAT SUSHUKUKI |
| JPS62283259A (en) * | 1986-06-02 | 1987-12-09 | Suzuki Motor Co Ltd | Shock absorber for vehicle |
-
1988
- 1988-12-27 JP JP63330412A patent/JP2570840B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02173472A (en) | 1990-07-04 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |