JPH02138395A - Combination sliding member - Google Patents
Combination sliding memberInfo
- Publication number
- JPH02138395A JPH02138395A JP4491789A JP4491789A JPH02138395A JP H02138395 A JPH02138395 A JP H02138395A JP 4491789 A JP4491789 A JP 4491789A JP 4491789 A JP4491789 A JP 4491789A JP H02138395 A JPH02138395 A JP H02138395A
- Authority
- JP
- Japan
- Prior art keywords
- wear
- potassium titanate
- nylon
- aluminum alloy
- 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.)
- Granted
Links
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 18
- 239000000835 fiber Substances 0.000 claims abstract description 18
- 238000007747 plating Methods 0.000 claims description 23
- 239000004677 Nylon Substances 0.000 claims description 16
- 229920001778 nylon Polymers 0.000 claims description 16
- 229910001096 P alloy Inorganic materials 0.000 claims description 10
- 239000000463 material Substances 0.000 abstract description 13
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 abstract description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract description 5
- 239000000314 lubricant Substances 0.000 abstract description 3
- 235000006408 oxalic acid Nutrition 0.000 abstract description 2
- 229920002302 Nylon 6,6 Polymers 0.000 abstract 3
- 238000002048 anodisation reaction Methods 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000003746 surface roughness Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000012783 reinforcing fiber Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000007743 anodising Methods 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- -1 alkyl hydroxycarboxylic acid Chemical compound 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000573 anti-seizure effect Effects 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 1
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Landscapes
- Sliding-Contact Bearings (AREA)
- Mechanical Operated Clutches (AREA)
- Lubricants (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
(産業上の利用分野〉
本発明は、例えば自動車クラッチ装置のレリースベアリ
ングハブとリテーナ等に使用できる、組合せ摺動部材に
関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a combination sliding member that can be used, for example, in a release bearing hub and retainer of an automobile clutch device.
(従来の技術〉
自動車で使用されている摺動部品の中に、一方が樹脂で
他方が軽金属の互いに摺動する部品として、第4図に示
すようなレリースベアリングハブlaとリテーナ2があ
る。クラッチペダルを踏むとクラッチレリーズベアリン
グlは、円筒状リテーナ2の外周面上を六方向のクラッ
チ板側にスライドし、クラッチを遮断する。また逆にク
ラッチペダルを戻すと、クラッチレリーズベアリング1
はB方向のエンジン側にスライドし、クラッチを接続す
る。(Prior Art) Among the sliding parts used in automobiles, there is a release bearing hub la and a retainer 2 as shown in FIG. 4, which are made of resin on one side and light metal on the other and slide against each other. When the clutch pedal is depressed, the clutch release bearing 1 slides on the outer circumferential surface of the cylindrical retainer 2 toward the clutch plate in six directions to disengage the clutch.On the other hand, when the clutch pedal is returned, the clutch release bearing 1
slide toward the engine in direction B and connect the clutch.
過去において、レリーズベアリングハブとリテーナは、
それらの材料として共に耐摩耗性金属が用いられ、グリ
ース等の潤滑剤の装填によって摺動性が保たれるように
されてきた。しかし、劣化グリースの交換、新潤滑油の
補充が容易でないこと、自動車の軽量化が求められだし
たことから最近では、ベアリングハブには66−ナイロ
ンが、すテーナにはアルミニウム合金が用いられるよう
になってきている。これら材料は軽量であり、また66
−ナイロンは自己潤滑性に富むことから、その摺動面に
は潤滑剤が不要である。In the past, release bearing hubs and retainers were
Wear-resistant metals have been used as materials for both, and sliding properties have been maintained by loading lubricants such as grease. However, because it is not easy to replace deteriorated grease or replenish new lubricating oil, and there is a demand for lighter cars, recently 66-nylon is being used for bearing hubs and aluminum alloy is being used for retainers. It is becoming. These materials are lightweight and 66
- Since nylon is highly self-lubricating, no lubricant is required on its sliding surfaces.
〈発明が解決しようとする課題〉
しかしながら、互いに摺動する66−ナイロン製ベアリ
ングハブとアルミニウム合金製リテーナは、いずれも耐
久性が充分でなく、ベアリングハブとリテーナが摩耗す
るという問題があった。この摩耗の増大につれて、これ
ら摺動部材間のクリアランスが大きくなり“かたあたり
”によってペダル踏力が増加するとともに、クラッチ断
続不良が起こり易くなる。<Problems to be Solved by the Invention> However, the 66-nylon bearing hub and the aluminum alloy retainer that slide against each other do not have sufficient durability, and there is a problem in that the bearing hub and the retainer wear out. As this wear increases, the clearance between these sliding members increases, resulting in an increase in pedal depression force due to "heavyness" and a tendency for clutch disconnection failure to occur.
本発明は、上記ベアリングハブとリテーナに見られるよ
うな、摺動部材の材質に起因する問題を解決することを
目的として為されたものであり、その解決しようとする
課題は、軽量で、潤滑剤が不要である上に、耐摩耗性が
一段と向上した組合せ摺動部材を提供することである。The present invention was made with the aim of solving problems caused by the materials of sliding members, as seen in the bearing hub and retainer mentioned above. It is an object of the present invention to provide a combination sliding member that does not require any additives and has further improved wear resistance.
(課題を解決するための手段〉
上記課題を解決できる本発明の組合せ摺動部材は、互い
に摺動する二つの部材であって、一方の部材の少なくと
も摺動面が、チタン酸カリウム繊維を10〜40wt%
含む66−ナイロンであり、他方の部材の少なくとも摺
動面がアルマイト層を有するアルミニウム合金もしくは
硬さHv600以上のN i−2〜L3wt%P合金メ
ッキ層を有するアルミニウム合金であることを特徴とす
る。(Means for Solving the Problems) The combined sliding member of the present invention capable of solving the above problems is composed of two members that slide against each other, and at least the sliding surface of one member is made of potassium titanate fibers of 10%. ~40wt%
66-nylon, and at least the sliding surface of the other member is an aluminum alloy having an alumite layer or an aluminum alloy having a Ni-2 to L3 wt% P alloy plating layer with a hardness of Hv600 or more. .
本発明の組合せ摺動部材は、例えば従来より樹脂部材と
軽合金部材とで組合されることの多い両槽動部材、特に
、クラッチレリーズベアリングハブとリテーナであるの
が好ましい。The combined sliding member of the present invention is preferably, for example, a dual-tube moving member that is conventionally often combined with a resin member and a light alloy member, particularly a clutch release bearing hub and a retainer.
チタン酸カリウム繊維を10〜40wt%含む66−ナ
イロンの摺動面を有する一方の部材は、部材全体がかか
る複合材料であってもよいし、部材の摺動面のみが複合
材料であってもよい。該部材は例えば、ナイロン溶融物
に充填剤としてウィスカー状チタン酸カリウム(N20
・6T、i02針状結晶物質)を混入し、−射的な熱可
塑性樹脂成形法により製造することが出来る。該針状結
晶物質は、直径0.1〜i、oμm程度、平均長さ2〜
50μm程度のものでよい。チタン酸カリウム繊維の含
有量が10〜40wt%でなければならない理由は、1
0wt%未満では耐摩耗性の向上効果が現れず、40w
t%を超えると相対的に66−ナイロン量が少なくなり
該部材の強度が低下するとともにチタン酸カリウム繊維
の相手攻撃性により相手部材の摩耗が急増するからであ
る。One member having a sliding surface of 66-nylon containing 10 to 40 wt% of potassium titanate fibers may be made of such a composite material in its entirety, or even if only the sliding surface of the member is made of a composite material. good. For example, the member is made of whisker-like potassium titanate (N20) as a filler in a nylon melt.
-6T, i02 needle-like crystal material) can be mixed therein and manufactured by a thermoplastic resin molding method. The acicular crystal substance has a diameter of about 0.1 to 10 μm and an average length of 2 to 10 μm.
It may be about 50 μm. The reason why the content of potassium titanate fiber must be 10 to 40 wt% is 1.
If it is less than 0wt%, the effect of improving wear resistance will not appear, and if it is less than 40w
This is because if it exceeds t%, the amount of 66-nylon becomes relatively small, the strength of the member decreases, and the wear of the partner member increases rapidly due to the aggressiveness of the potassium titanate fibers.
次に、他方の部材、即ち少な(とも摺動面にアルマイト
層もしくは硬さHv 600以上のN i −2〜13
wt%P合金メッキ層を有するアルミニウム合金につい
て説明する。Next, the other member, i.e., a small alumite layer on the sliding surface or a hardness of Hv 600 or more Ni-2 to 13
An aluminum alloy having a wt% P alloy plating layer will be described.
まず、アルマイト層を有するアルミニウム合金は、常法
に従い、陽極酸化処理(アルマイト処理)によりアルマ
イト層(酸化皮膜)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、これらの混合浴等を
用い、陽極側で処理することにより得られる。このアル
マイト層の硬さはHv200以上であればよい。それ以
下ではアルマイト層の摩耗が増加する。First, an aluminum alloy having an alumite layer is an aluminum alloy that can form an alumite layer (oxide film) by anodizing treatment (alumite treatment) according to a conventional method.
It is obtained by treatment on the anode side using an electrolytic bath such as a sulfuric acid bath, an oxalic acid bath, or a mixed bath thereof. The hardness of this alumite layer should just be Hv200 or more. If the temperature is lower than that, wear of the alumite layer increases.
また、硬さHv600以上のNi−2〜13wt%P合
金メッキ層を有するアルミニウム合金は、Ni:P=9
8〜87:2〜13となるメッキ液でアルミニウム合金
を常法(無電解化学メッキ、又は電解析出法)に従って
処理し、次いで熱処理を行なうことにより得られる。メ
ッキ層のN1−P合金のP量を2〜13wt%としたの
は、2wt%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、13wt%を越
える蚤では硬さは得られてもメッキ層の靭性が低下する
ためメッキ層の剥離が発生し易くなるからである。In addition, an aluminum alloy having a Ni-2 to 13 wt% P alloy plating layer with a hardness of Hv600 or more is Ni:P=9
It is obtained by treating an aluminum alloy with a plating solution having a ratio of 8 to 87:2 to 13 according to a conventional method (electroless chemical plating or electrolytic deposition method), and then heat-treating it. The reason why the amount of P in the N1-P alloy in the plating layer was set to 2 to 13 wt% is because if it is less than 2 wt%, sufficient hardness cannot be obtained even if heat treatment is performed, and the amount of wear of the plating layer increases. This is because if the flea exceeds that level, even if hardness is obtained, the toughness of the plating layer decreases, making it easy for the plating layer to peel off.
〈実施例〉
以下に本発明の組合せ摺動部材の実施例を、比較例と対
比させながら説明するが、これにより本発明は何ら限定
されるものではない。<Example> Examples of the combined sliding member of the present invention will be described below while comparing with comparative examples, but the present invention is not limited thereby.
実施例1
一方の部材として、6ロ一ナイロン粉末7重量部とウィ
スカー状チタン酸カリウム3重量部を混合し、その混合
溶融物を用いて押出成形することにより大きさが30m
mX 30mmX 5mmの平板試験片を製作した。Example 1 As one member, 7 parts by weight of 6-Ro-1 nylon powder and 3 parts by weight of whisker-like potassium titanate were mixed, and the mixed melt was extruded to form a material having a size of 30 m.
A flat test piece measuring 30 mm x 5 mm was manufactured.
他方の部材として、アルミニウム合金(JIS ADC
l2)から、外形25.4mm、内径20mm、長さ1
6mmの円筒片を作成し、その円筒外面に硫酸浴で陽極
酸化処理を施して、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製作した
。As the other member, aluminum alloy (JIS ADC
l2), outer diameter 25.4 mm, inner diameter 20 mm, length 1
A 6 mm cylindrical piece was prepared, and the outer surface of the cylinder was anodized in a sulfuric acid bath to produce a cylindrical test piece having an oxide film (alumite layer) with a thickness of 10 μm and a hardness of Hv300.
該円筒試験片と上記平板試験片を組合せて下記の摩耗試
験に供した。The cylindrical test piece and the flat plate test piece were combined and subjected to the following wear test.
実施例2
円筒片の外面に陽極酸化処理を施す代わりに、Ni−8
wt%P合金メッキ処理を施し更に硬さをHv900と
する熱処理(350℃X 1hr)を施す以外は実施例
1と同様にして、平板試験片と円筒試験片からなる組合
せ試験片を作成し、下記摩耗試験に供した。Example 2 Instead of anodizing the outer surface of the cylindrical piece, Ni-8
A combination test piece consisting of a flat plate test piece and a cylindrical test piece was created in the same manner as in Example 1, except that wt%P alloy plating treatment was applied and heat treatment (350°C x 1 hr) was applied to make the hardness Hv900. It was subjected to the following abrasion test.
なおメッキ処理は硫酸ニッケル5次亜燐酸ソーダ、アル
キルヒドロキシカルボン酸(錯化剤)、安定剤、pH調
整剤を適当に含んでなる浴温90〜95℃のメッキ浴に
40分程度浸漬し、厚さ206mのNi−8wt%P合
金メッキ層を形成させた。In addition, the plating treatment was performed by immersing the nickel sulfate in a plating bath containing appropriate amounts of pentahypophosphite, alkyl hydroxycarboxylic acid (complexing agent), a stabilizer, and a pH adjuster at a bath temperature of 90 to 95°C for about 40 minutes. A Ni-8wt%P alloy plating layer with a thickness of 206 m was formed.
比較例1〜9
66−ナイロンで、或は66−ナイロンに夫々ガラス繊
維、カーボン繊維、チタン酸カリウム繊維を30wt%
添加したもので、種々の平板試験片を製作した。また、
アルミニウム合金(JIS ADCl、2)で円筒試験
片を製作し、更にそれを陽極酸化処理した円筒試験片、
並びにNf−8wt%P合金メッキ処理(熱処理せず、
°、メッキ層の硬さHv400 ) した円筒試験片も
製作した。Comparative Examples 1 to 9 66-nylon or 66-nylon with 30 wt% of glass fiber, carbon fiber, or potassium titanate fiber, respectively
Various flat test specimens were made using the additives. Also,
A cylindrical specimen made of aluminum alloy (JIS ADCl, 2) and further anodized,
and Nf-8wt%P alloy plating treatment (no heat treatment,
A cylindrical test piece with a plating layer hardness of Hv400) was also produced.
ここで製作された種々の平板試験片と円筒試験片を様々
に組合せ、相互に摺動させる組合せ試験片(比較例1〜
9)として、後記の摩耗試験に供した。The various flat plate test pieces and cylindrical test pieces produced here were combined in various ways and combined test pieces were made by sliding them on each other (Comparative Examples 1 to 3).
9), it was subjected to the abrasion test described below.
上記比較例1〜9の組合せ試験片の材質を判かり易く前
記実施例1及び2のそれとまとめて示せば第1表の通り
である。The materials of the combination test pieces of Comparative Examples 1 to 9 are shown in Table 1 together with those of Examples 1 and 2 for easy understanding.
第1表
摩耗試験
実施例1.2及び比較例1〜9の組合せ試験片を、順次
摩耗試験機にセットし、平板試験片の30mmX 30
a++n面と円筒試験片の端面を接触させ、荷重50K
g、回転数17rpmにて平板試験片を60分間回転さ
せる摩耗試験を行なった。Table 1 Abrasion Test The combination test pieces of Example 1.2 and Comparative Examples 1 to 9 were set in order in an abrasion tester, and a flat plate test piece of 30 mm x 30
Contact the a++n surface with the end surface of the cylindrical test piece, and apply a load of 50K.
A wear test was conducted by rotating a flat plate specimen for 60 minutes at a rotation speed of 17 rpm.
なお平板試験片の表面粗さは全て1.5μRzであり、
一方、円筒試験片の表面粗さは比較例1〜7及び実施例
1のものが0.8μRzで、比較例8.9及び実施例2
のものが1.0μR7,である。The surface roughness of all flat test pieces was 1.5μRz,
On the other hand, the surface roughness of the cylindrical test pieces was 0.8 μRz for Comparative Examples 1 to 7 and Example 1, and 0.8 μRz for Comparative Examples 8.9 and Example 2.
The value is 1.0μR7.
この摩耗試験結果を第1図に示す。該図中、上半分は平
板試験片の摩耗量(摩耗痕深さ)を表わし、下半分は円
筒試験片の摩耗量(摩耗重量)を表わしている。The results of this wear test are shown in FIG. In the figure, the upper half represents the wear amount (wear scar depth) of the flat plate test piece, and the lower half represents the wear amount (wear weight) of the cylindrical test piece.
第1図を見て判るよ・)に、平板試験片については、強
化繊維を充填したものの方が、充填しないもの(A、E
)よりも摩耗量が小さい。またその繊維の中で、チタン
酸カリウム繊維を用いた方の平板試験片(D、H,D’
、J、K)で摩耗量が小さくなっている。As can be seen from Figure 1), for the flat test specimens, those filled with reinforcing fibers are better than those not filled with reinforcing fibers (A, E).
) The amount of wear is smaller than that of Also, among the fibers, flat plate test pieces using potassium titanate fibers (D, H, D'
, J, K), the amount of wear is smaller.
他方、円筒試験片については、アルマイト処理の有無で
比較すると、有るもの(E−H)の方が摩耗量が小さい
。また、アルマイト処理された円筒試験片の中では、相
手材に強化繊維が用いられている場合に摩耗量が大きく
なっている。しかしチタン酸カリウム繊維のもの(H)
は、ガラス繊維やカーボン繊維のもの(F、G)のよう
に強い相手攻撃性を有していないためか、円筒試験片の
摩耗量が少なく良好である。On the other hand, when comparing the cylindrical test pieces with and without alumite treatment, those with alumite treatment (EH) have a smaller amount of wear. Moreover, among the alumite-treated cylindrical test pieces, the amount of wear was large when reinforcing fibers were used as the mating material. However, potassium titanate fiber (H)
The cylindrical test piece showed a small amount of wear and was good, probably because it did not have strong adversity like glass fiber or carbon fiber (F, G).
また、メッキ層の有無で比較すると、無いもの(D′)
よりも有るもの(J、K)の方が、更には熱処理をして
硬さを高くしたもの(K)の方が優れていることが分か
る。Also, when comparing the presence or absence of a plating layer, the one without (D')
It can be seen that the materials (J, K) are better than the materials (J, K), and the material (K) that has been heat-treated to increase its hardness is better.
以上のように、耐摩耗性に関しては実施例1のチタン酸
カリウム30wt%含有66−ナイロン部材X陽極酸化
処理アルミニウム合金部材の組合せ(H)、次いで実施
例2のチタン酸カリウム30wt%含有66−ナイロン
部材×メッキ・熱処理アルミニウム合金部材の組合せ(
K)が特に優れた結果を示した。As mentioned above, regarding wear resistance, the combination (H) of the 66-nylon member containing 30 wt% of potassium titanate and the anodized aluminum alloy member of Example 1 was followed by the 66-nylon member containing 30 wt% of potassium titanate of Example 2. Combination of nylon parts and plated/heat-treated aluminum alloy parts (
K) showed particularly excellent results.
焼付試験
上記実施例1.2及び比較例1〜9の各組合せ組合せH
が耐焼付性において特に優れていることが確認された。Seizure test Each combination of Example 1.2 and Comparative Examples 1 to 9 above Combination H
It was confirmed that the anti-seizure property was particularly excellent.
参考実施例1
組合せHに関連し、チタン酸カリウム繊維の66−ナイ
ロンへの最適充填量を調べるため、下記第3表に示すN
011〜Gの組合せ試験片を製作し、上記と同様の摩耗
試験及び焼付試験に付した。なお各試験片の表面あらさ
、及び円筒試験片のアルマイト層の厚さ、硬さも前回同
様である。Reference Example 1 Regarding combination H, in order to investigate the optimal loading amount of potassium titanate fibers into 66-nylon, N as shown in Table 3 below was used.
Combination test pieces of 011 to G were manufactured and subjected to the same wear test and seizure test as above. The surface roughness of each test piece and the thickness and hardness of the alumite layer of the cylindrical test piece were also the same as the previous test.
第3表
摩耗試験結果を第2図に示す。平板試験片の摩耗量は、
チタン酸カリウム繊維の充填量が10〜40wt%で小
さく良好である。10wt%以下では摩耗量が増加し、
また40wt%を超えると強度が低下するため耐摩耗性
が不足する。一方円間試験片の摩耗量は、相手材のチタ
ン酸カリウムが40wt%までは小さく、40wt%を
超えると増加し始める。以上の事から、チタン酸カリウ
ム繊維の充填量は10〜40wt%で平板、円筒量試験
片とも摩耗量が小さ(良好であることが分かる。Table 3 The wear test results are shown in FIG. The amount of wear on the flat plate specimen is
The filling amount of potassium titanate fibers is 10 to 40 wt%, which is small and good. Below 10wt%, the amount of wear increases,
Moreover, if it exceeds 40 wt%, the strength decreases, resulting in insufficient wear resistance. On the other hand, the wear amount of the circular test piece is small up to 40 wt% of potassium titanate as the mating material, and begins to increase when it exceeds 40 wt%. From the above, it can be seen that when the filling amount of potassium titanate fibers is 10 to 40 wt%, the amount of wear is small (good) in both the flat plate and cylindrical test pieces.
焼付試験では、第2図に示した平板試験片の摩耗量に比
例する結果が得られ、チタン酸カリウム繊維が10〜4
0wt%で焼付荷重が高く、耐焼付性に優れていること
が分かった。In the seizure test, results were obtained that were proportional to the wear amount of the flat test piece shown in Figure 2, and the potassium titanate fibers
It was found that the seizure load was high at 0 wt%, and the seizure resistance was excellent.
参考実施例2
N L−8%Pメッキ層の最適硬さを明らかにするため
に、熱処理温度を変化させることにより硬さを変化させ
た数種の円筒試験片を用いて摩耗試験および焼付試験を
行なった。試験片の組合せを第4表に示す。Reference Example 2 In order to clarify the optimal hardness of the N L-8%P plating layer, wear tests and seizure tests were conducted using several types of cylindrical test pieces whose hardness was changed by changing the heat treatment temperature. I did it. Table 4 shows the combinations of test pieces.
第3表
なお試験方法および試験片の表面粗さは前記の試験の場
合と同様である。摩耗試験結果を第3図に示す。Table 3 The test method and surface roughness of the test piece are the same as in the above test. The wear test results are shown in Figure 3.
平板試験片の摩耗量は、円筒試験片のN i −8%P
メッキ層の硬さが高(なると若干大きくなる傾向にある
が、増加量はと(僅かであり影響は少ない。一方、円筒
試験片の摩耗量は、Ni −8wt%P合金メッキ層の
硬さがHv600以上で小さ(なっている。すなわち、
Ni−8wt%P合金メッキ層の硬さがHv600以上
であれば、平板・円筒両試験片ともに摩耗量が小さく良
好で有ることが分かる。The wear amount of the flat plate test piece is N i -8%P of the cylindrical test piece.
The hardness of the plating layer tends to increase slightly, but the amount of increase is small and the effect is small.On the other hand, the amount of wear on the cylindrical test piece is due to the hardness of the Ni-8wt%P alloy plating layer. is small (becomes) at Hv600 or higher. In other words,
It can be seen that if the hardness of the Ni-8wt%P alloy plating layer is Hv600 or more, the wear amount is small and good for both the flat plate and cylindrical test pieces.
また第4表に示した試験片の組合せについて焼付試験を
行なったが、摩耗試験の場合と同様にNi−8wt%P
合金メッキ層の硬さがHv600以上であれば優れた耐
焼付性を示すことが判かる。Seizure tests were also conducted on the combinations of test pieces shown in Table 4, but as in the case of the wear test, Ni-8wt%P
It can be seen that if the hardness of the alloy plating layer is Hv600 or more, it exhibits excellent seizure resistance.
実施例3.4及び比較例1O〜14
比較例1O511,12,13及び14並びに実施例3
及び4として、第4図に示すレリーズベアリングハブl
aとリテーナ2を、それぞれ第1表に示したA、E、F
、I)’及びJ並びにH及びKの平板試験片(ハブ側)
と円筒試験片(リテーナ側)の材質と同じ材質組合せで
製作した。樹脂ハブの内径は33ma+であり、ハブと
リテーナのクリアランスは100gmである。各組合せ
について、台上ストローク耐久試験(回転数2000r
pm 、ストローク量8、On+111.ストローク回
数106回)を行なった後、損傷状態を比較した。その
結果を第5表に示す。Example 3.4 and Comparative Examples 1O to 14 Comparative Example 1O511, 12, 13 and 14 and Example 3
and 4, the release bearing hub l shown in FIG.
a and retainer 2 are A, E, and F shown in Table 1, respectively.
, I)' and J and H and K flat plate test pieces (hub side)
It was manufactured using the same material combination as that of the cylindrical test piece (retainer side). The inner diameter of the resin hub is 33 ma+, and the clearance between the hub and the retainer is 100 gm. For each combination, bench stroke durability test (rotation speed 2000r
pm, stroke amount 8, On+111. After 106 strokes), the state of damage was compared. The results are shown in Table 5.
第5表
該表から判かるように、従来例ともいえるAの組合せが
最も摩耗がひどく、損傷がさらに進むとクラッチ切れ不
良が生じる。本発明に係るHの組合せ、及びKの組合せ
が、パブ及びリテーナの摩耗量及び踏力増加の点で他に
比べて格段に優れていることが判かる。Table 5 As can be seen from the table, combination A, which can be called a conventional example, suffers the most wear, and if the damage progresses further, clutch disengagement will occur. It can be seen that the combination of H and the combination of K according to the present invention are significantly superior to the others in terms of the amount of wear on the pub and retainer and the increase in pedal effort.
〈発明の効果〉
以上の説明から明らかなように、本発明の組合せ摺動部
材は、無潤滑油下で使用できる軽量摺動部材であるにも
拘らず、優れた耐摩耗性及び耐焼付性を示す。<Effects of the Invention> As is clear from the above description, the combined sliding member of the present invention has excellent wear resistance and seizure resistance, even though it is a lightweight sliding member that can be used without lubricating oil. shows.
したがって、例えば自動車クラッチ装置のレリーベアリ
ングハブとリテーナを本発明の摺動部材で構成すれば、
摩耗に基く故障やクラッチペダルの踏力増加が格段に少
なくなり、自動車の安全性、信頼性を高めることができ
る。Therefore, for example, if the relay bearing hub and retainer of an automobile clutch device are constructed with the sliding member of the present invention,
Failures due to wear and increases in clutch pedal depression force are significantly reduced, making it possible to improve the safety and reliability of automobiles.
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図、第2図は一試験例
におけるチタン酸カリウム繊維の充填量と摩耗量の関係
を示す図、
第3図は他試験例におけるN1−Pメッキ層の硬さと摩
耗量の関係を示す図、
第4図はクラッチ装置の、リテーナに摺動可能に取付け
られたレリーズベアリングを示す断面図である。
図中:
l・・・クラッチレリーズベアリング
la・・・レリーズベアリングハブ
2・・・リテーナ
特許出願人 トヨタ自動車株式会社
代理人 弁理士 萼 優 美(ばか2名)第1
因
第2
図
平板試腋片のチタン酸カリウム繊維充てに量(wt%)
第3図Fig. 1 is a diagram showing the results of a wear test of a combined sliding member according to an example of the present invention in comparison with that of a comparative example, and Fig. 2 is a diagram showing the relationship between the filling amount of potassium titanate fibers and the amount of wear in one test example. Figure 3 is a diagram showing the relationship between the hardness of the N1-P plating layer and the amount of wear in other test examples. Figure 4 is a sectional view showing the release bearing slidably attached to the retainer of the clutch device. It is. In the diagram: l...Clutch release bearing la...Release bearing hub 2...retainer Patent applicant Toyota Motor Corporation representative Patent attorney Yumi Sakai (2 idiots) 1st cause 2nd figure Flat plate test armpit Amount of potassium titanate fiber filling in a piece (wt%)
Figure 3
Claims (1)
の少なくとも摺動面が、チタン酸カリウム繊維を10〜
40wt%含む66−ナイロンであり、他方の部材の少
なくとも摺動面がアルマイト層を有するアルミニウム合
金であることを特徴とする組合せ摺動部材。(2)互い
に摺動する二つの部材であって、一方の部材の少なくと
も摺動面が、チタン酸カリウム繊維を10〜40wt%
含む66−ナイロンであり、他方の部材の少なくとも摺
動面が硬さHv600以上のNi−2〜13wt%P合
金メッキ層を有するアルミニウム合金であることを特徴
とする組合せ摺動部材。(1) Two members that slide against each other, and at least the sliding surface of one member has potassium titanate fibers of 10 to 10%
66-nylon containing 40 wt%, and at least the sliding surface of the other member is an aluminum alloy having an alumite layer. (2) Two members that slide against each other, and at least the sliding surface of one member contains 10 to 40 wt% of potassium titanate fibers.
66-nylon, and at least the sliding surface of the other member is an aluminum alloy having a Ni-2 to 13 wt % P alloy plating layer having a hardness of Hv600 or more.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4491789A JP2570850B2 (en) | 1988-07-22 | 1989-02-23 | Combination sliding member |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63-183170 | 1988-07-22 | ||
JP18317088 | 1988-07-22 | ||
JP4491789A JP2570850B2 (en) | 1988-07-22 | 1989-02-23 | Combination sliding member |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02138395A true JPH02138395A (en) | 1990-05-28 |
JP2570850B2 JP2570850B2 (en) | 1997-01-16 |
Family
ID=26384884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4491789A Expired - Fee Related JP2570850B2 (en) | 1988-07-22 | 1989-02-23 | Combination sliding member |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2570850B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4925701A (en) * | 1988-05-27 | 1990-05-15 | Xerox Corporation | Processes for the preparation of polycrystalline diamond films |
JPH0428241U (en) * | 1990-06-29 | 1992-03-06 | ||
US5114696A (en) * | 1990-08-06 | 1992-05-19 | Texas Instruments Incorporated | Diamond growth method |
JPH06200928A (en) * | 1992-11-05 | 1994-07-19 | Imi Marston Ltd | Plain bearing |
JP2006125484A (en) * | 2004-10-28 | 2006-05-18 | Ntn Corp | Automatically aligned type clutch release bearing device |
-
1989
- 1989-02-23 JP JP4491789A patent/JP2570850B2/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4925701A (en) * | 1988-05-27 | 1990-05-15 | Xerox Corporation | Processes for the preparation of polycrystalline diamond films |
JPH0428241U (en) * | 1990-06-29 | 1992-03-06 | ||
US5114696A (en) * | 1990-08-06 | 1992-05-19 | Texas Instruments Incorporated | Diamond growth method |
JPH06200928A (en) * | 1992-11-05 | 1994-07-19 | Imi Marston Ltd | Plain bearing |
JP2006125484A (en) * | 2004-10-28 | 2006-05-18 | Ntn Corp | Automatically aligned type clutch release bearing device |
Also Published As
Publication number | Publication date |
---|---|
JP2570850B2 (en) | 1997-01-16 |
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