JPH0979264A - Aluminum bearing - Google Patents
Aluminum bearingInfo
- Publication number
- JPH0979264A JPH0979264A JP7262487A JP26248795A JPH0979264A JP H0979264 A JPH0979264 A JP H0979264A JP 7262487 A JP7262487 A JP 7262487A JP 26248795 A JP26248795 A JP 26248795A JP H0979264 A JPH0979264 A JP H0979264A
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- pure aluminum
- bearing
- layer
- bearing alloy
- 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
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 122
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 119
- 239000001996 bearing alloy Substances 0.000 claims abstract description 59
- 238000005096 rolling process Methods 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims description 49
- 239000002184 metal Substances 0.000 claims description 49
- 230000003746 surface roughness Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 abstract description 107
- 238000010008 shearing Methods 0.000 abstract description 6
- 230000006378 damage Effects 0.000 abstract description 3
- 239000011229 interlayer Substances 0.000 abstract description 3
- 239000002356 single layer Substances 0.000 abstract description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 15
- 229910052759 nickel Inorganic materials 0.000 description 8
- 238000005304 joining Methods 0.000 description 7
- 238000007747 plating Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 241001422033 Thestylus Species 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- YVIMHTIMVIIXBQ-UHFFFAOYSA-N [SnH3][Al] Chemical compound [SnH3][Al] YVIMHTIMVIIXBQ-UHFFFAOYSA-N 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- IZJSTXINDUKPRP-UHFFFAOYSA-N aluminum lead Chemical compound [Al].[Pb] IZJSTXINDUKPRP-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000009661 fatigue test Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000897 Babbitt (metal) Inorganic materials 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- LFYJSSARVMHQJB-QIXNEVBVSA-N bakuchiol Chemical compound CC(C)=CCC[C@@](C)(C=C)\C=C\C1=CC=C(O)C=C1 LFYJSSARVMHQJB-QIXNEVBVSA-N 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010998 test method 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2204/00—Metallic materials; Alloys
- F16C2204/20—Alloys based on aluminium
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
- F16C33/121—Use of special materials
Landscapes
- Sliding-Contact Bearings (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車、産業機械等に
使用するすべり軸受に係り、特に高負荷、高速回転用に
好適なアルミニウム系軸受に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide bearing used in automobiles, industrial machines and the like, and more particularly to an aluminum bearing suitable for high load and high speed rotation.
【０００２】[0002]
【従来の技術及びその課題】従来のアルミニウム系軸受
１として、例えば図５，図６に示すようなものがある。
すなわち、アルミニウム−錫系、アルミニウム−鉛系等
の軸受合金２’と、鋼製の裏金４とを、９９．００％以
上の純アルミニウム系接合層３０を介して接合されてい
る。この純アルミニウム系接合層３０は、軸受合金２’
中に含まれる潤滑成分である錫，鉛等が直接裏金４との
接合界面４ａに介在し、軸受合金２’と裏金４との接合
を阻害することを防止するために、媒接層として設けら
れる。また、純アルミニウム系接合層３０は、同時に軸
受合金２’と裏金４とを接着する接合層としての役割も
有している。具体的には、アルミニウム系軸受１は、軸
受合金２’と裏金４との間に純アルミニウム系接合層３
０を介装した状態で、ロールによつて圧接させて製作さ
れる。2. Description of the Related Art As a conventional aluminum-based bearing 1, there are those shown in FIGS. 5 and 6, for example.
That is, the bearing alloy 2'of aluminum-tin system, aluminum-lead system, or the like and the steel backing metal 4 are joined via the pure aluminum-based joining layer 30 of 99.00% or more. This pure aluminum-based bonding layer 30 is a bearing alloy 2 '.
Provided as a medium contact layer in order to prevent the lubricating components contained therein such as tin and lead from directly intervening at the joint interface 4a with the back metal 4 and impeding the bonding between the bearing alloy 2 ′ and the back metal 4. To be Further, the pure aluminum-based bonding layer 30 also has a role as a bonding layer for bonding the bearing alloy 2 ′ and the back metal 4 at the same time. Specifically, the aluminum-based bearing 1 includes a pure aluminum-based bonding layer 3 between the bearing alloy 2 ′ and the back metal 4.
It is manufactured by press-contacting with a roll with 0 interposed.
【０００３】この裏金４の表面に錫，鉛等の潤滑金属成
分を介在させず、かつ、アルミニウム系の軸受合金２’
と鋼製の裏金４という全く機械的性質が異なる異種物質
をロール圧接によつて所定の接合強度を与えて固着する
ために、圧接時に両者の間で発生する相対的なすべりを
吸収し、軸受合金２’を裏金４に強固に凝着するような
適切な接合層が必要不可欠である。従つて、接合層の必
要条件として、延性に富み、裏金４に凝着しやすいこと
が求められる。こうした要件を満たす物質として、従来
より純アルミニウム系接合層３０が使われてきた。The bearing metal 2 ', which is an aluminum-based alloy, has no lubricating metal component such as tin or lead interposed on the surface of the back metal 4.
And the steel backing 4 made of dissimilar materials having completely different mechanical properties are fixed by the roll pressure welding with a predetermined bonding strength, so that the relative slip generated between the two is absorbed and the bearing It is essential that a suitable joining layer is provided that firmly adheres the alloy 2'to the backing 4. Therefore, as a necessary condition for the bonding layer, it is required that the bonding layer is rich in ductility and easily adheres to the back metal 4. The pure aluminum-based bonding layer 30 has been conventionally used as a material satisfying these requirements.
【０００４】一方、軸受合金２’と裏金４との間の接合
層として、ニッケルメッキ層を使用し、このニッケルメ
ッキ層を介して軸受合金２’と裏金４とを接合したアル
ミニウム系軸受も知られている。これによれば、ニッケ
ルメッキ層により、裏金４と軸受合金２’中の錫、鉛等
との直接接触が防止されるものの、ニッケル層では延性
が乏しいため、十分な接合強度が得られないという技術
的課題がある。On the other hand, there is also known an aluminum bearing in which a nickel plating layer is used as a joining layer between the bearing alloy 2'and the back metal 4, and the bearing alloy 2'and the back metal 4 are joined via this nickel plating layer. Has been. According to this, although the nickel plating layer prevents direct contact between the back metal 4 and the tin, lead, etc. in the bearing alloy 2 ', the nickel layer has poor ductility, so that sufficient bonding strength cannot be obtained. There are technical challenges.
【０００５】従つて、強固な接合を得るためには純アル
ミニウム系接合層３０の使用が不可欠であるが、近年、
アルミニウム系軸受１に加えられる高負荷化のために、
軟質で強度の低いこの純アルミニウム系接合層３０によ
る問題が顕在化するようになつてきた。すなわち、高温
下で繰り返し高負荷を受けた場合、この純アルミニウム
系接合層３０が塑性変形を起こし、アルミニウム系の軸
受合金２’と裏金４との間ですべりを起こし、軸受合金
２’にクラックが入り、軸受合金２’層の破壊に至ると
いつた不具合が発生している。しかしながら、これは中
間の接合層３０を強度のない純アルミニウムに求める以
上、不可避の問題であり、純アルミニウム自体によつて
十分な延性と十分な強度とを両立させることは物理的に
不可能であると考えられていた。そこで、こうした問題
に対処するために接合層を純アルミニウムでなくアルミ
ニウム合金に求めた特許（特開平５−９９２２９号）も
見られるが、アルミニウム合金ではやはり延性が乏し
く、接合力はどうしても相対的に低下せざるを得ない。Therefore, the use of the pure aluminum-based bonding layer 30 is indispensable for obtaining a strong bond.
In order to increase the load applied to the aluminum-based bearing 1,
The problem caused by this pure aluminum-based bonding layer 30 which is soft and has low strength has become apparent. That is, when repeatedly subjected to a high load at high temperatures, the pure aluminum-based bonding layer 30 undergoes plastic deformation, causing slippage between the aluminum-based bearing alloy 2'and the backing metal 4 and cracking in the bearing alloy 2 '. When the bearing alloy 2 ′ layer is destroyed due to the inclusion of a metal, a malfunction has occurred. However, this is an unavoidable problem as long as the intermediate bonding layer 30 is made of pure aluminum having no strength, and it is physically impossible to achieve both sufficient ductility and sufficient strength by pure aluminum itself. Was thought to be. Therefore, there is a patent (Japanese Patent Laid-Open No. 5-99229) in which an aluminum alloy is used for the joining layer instead of pure aluminum in order to deal with such a problem, but the aluminum alloy also has poor ductility, and the joining force is inevitably relatively high. It cannot help but decline.
【０００６】図６に従来の純アルミニウム系接合層３０
を有するアルミニウム系軸受１の材料の構造を示す。同
図において、純アルミニウム系接合層３０の最大厚さを
Ｔ、裏金４の表面（純アルミニウム系接合層３０と裏金
４との接合界面４ａ）の最大高さをＲｍａｘ、裏金４の
表面（純アルミニウム系接合層３０と裏金４との接合界
面４ａ）の転がり円最大うねりをＷEM、剪断応力の発生
層の厚さをＳとする。最大高さＲｍａｘはＪＩＳＢＯ６
０１に定められ、断面曲線（接合界面４ａ）から基準長
さだけ抜き取つた部分の平均線に平行な２直線で抜取り
部分を挟んだとき、この２直線の間隔を断面曲線の縦倍
率の方向に測定して、この値をμｍで表したものであ
る。また、転がり円最大うねりＷEMはＪＩＳＢＯ６０１
に定められ、半径Ｒの触針を断面曲線（接合界面４ａ）
に転動させて、触針の中心が描く曲線を転がり円うねり
曲線として求め、この転がり円うねり曲線の最大うねり
高さである。なお、最大高さＲｍａｘと転がり円最大う
ねりＷEMとの関係は、測定面である裏金４の表面の凹凸
変化が滑らかで触針の半径Ｒが十分に小さい場合には、
Ｒｍａｘ＝ＷEMとなり、裏金４の表面の凹凸変化が比較
的急激で触針の半径Ｒが比較的大きい場合には、Ｒｍａ
ｘ＞ＷEMとなる。FIG. 6 shows a conventional pure aluminum-based bonding layer 30.
The structure of the material of the aluminum-based bearing 1 which has is shown. In the figure, the maximum thickness of the pure aluminum-based bonding layer 30 is T, the maximum height of the surface of the backing metal 4 (bonding interface 4a between the pure aluminum-based bonding layer 30 and the backing metal 4) is Rmax, and the surface of the backing metal 4 (pure Let W EM be the maximum rolling circle waviness of the joining interface 4a) between the aluminum-based joining layer 30 and the backing metal 4, and S be the thickness of the layer in which shear stress is generated. Maximum height Rmax is JISBO6
01, and when the extracted portion is sandwiched by two straight lines parallel to the average line of the portion extracted by the reference length from the sectional curve (bonding interface 4a), the interval between these two straight lines is the direction of the longitudinal magnification of the sectional curve. Is measured and the value is expressed in μm. Also, the maximum rolling circle waviness W EM is JISBO601.
The cross-section curve (bonding interface 4a)
Then, the curve drawn by the center of the stylus is obtained as a rolling circle waviness curve, and this is the maximum waviness height of this rolling circle waviness curve. The relationship between the maximum height Rmax and the maximum rolling circle waviness W EM is that when the unevenness of the surface of the backing metal 4 which is the measurement surface is smooth and the radius R of the stylus is sufficiently small,
When Rmax = W EM , the surface roughness of the back metal 4 changes relatively rapidly, and the radius R of the stylus is relatively large, Rma
x> W EM .
【０００７】そして、従来材の場合には、Ｔ＞Ｒｍａｘ
及びＴ＞ＷEMの両者を満たす形態となつている。すなわ
ち、図６に示すように裏金４の表面（接合界面４ａ）に
は、粗さ、うねりが存在しているが、純アルミニウム系
接合層３０の上面と軸受合金２’との界面２’ａは軽度
のうねりはあるがほぼ平坦であり、また、純アルミニウ
ム系接合層３０が裏金４の凹凸に比べて厚いので裏金４
の凹凸の大部分を吸収し、軸受合金２’の界面２’ａに
沿つて所定高さの純アルミニウム層Ｓが存在する形態を
呈している。本発明者等は、この純アルミニウム系接合
層３０内の周方向に連続した純アルミニウム層Ｓが、強
度の弱い剪断応力の発生する層となり、高温下で繰り返
し高負荷を受けた場合、この連続した純アルミニウム層
Ｓが塑性変形を起こし、アルミニウム系の軸受合金２’
と裏金４との間ですべりを起こし、軸受合金２’にクラ
ックが入り、軸受合金２’層の破壊に至るという現象を
見出した。In the case of the conventional material, T> Rmax
And T> W EM . That is, as shown in FIG. 6, roughness and undulation are present on the surface of the backing metal 4 (bonding interface 4a), but the interface 2'a between the upper surface of the pure aluminum-based bonding layer 30 and the bearing alloy 2'a. Has a slight waviness, but is almost flat, and since the pure aluminum-based bonding layer 30 is thicker than the unevenness of the back metal 4, the back metal 4
It absorbs most of the irregularities and has a form in which the pure aluminum layer S having a predetermined height exists along the interface 2'a of the bearing alloy 2 '. The inventors of the present invention have found that the pure aluminum layer S that is continuous in the circumferential direction in the pure aluminum-based bonding layer 30 becomes a layer in which shearing stress with weak strength is generated and is repeatedly subjected to a high load at high temperature. The pure aluminum layer S that has undergone plastic deformation causes aluminum-based bearing alloy 2 '.
It has been found that a slip occurs between the back metal 4 and the back metal 4, cracks occur in the bearing alloy 2 ′, and the bearing alloy 2 ′ layer is destroyed.
【０００８】純アルミニウム系接合層３０内の純アルミ
ニウム層Ｓですべりが発生し、アルミニウム系の軸受合
金２’層が破壊に至る場合の力学的背景について、図７
を参照して説明する。高速・高負荷下での油切れを起こ
した境界潤滑条件下では、軸（図示せず）の回転力が、
円筒状の軸受合金２’の表面（摺動面）において接線方
向に引つ張る力Ｐとして働き、軸受合金２’内を伝播
し、純アルミニウム系接合層３０内で応力方向が反転
し、裏金４内に引つ張り力Ｐ’を生じ、結果的に最も弱
い純アルミニウム系接合層３０内に剪断応力が発生する
ことになる。従つて、軸受合金２’が破壊に至る場合、
こうした純アルミニウム系接合層３０内の連続した純ア
ルミニウム層Ｓをクラックが伝播し、軸受合金２’との
剥離を起こし、剥離した軸受合金２’が飛散し、場合に
よつては軸の焼付に発展する。The mechanical background in the case where slippage occurs in the pure aluminum layer S in the pure aluminum-based joining layer 30 and the aluminum-based bearing alloy 2'layer is destroyed is shown in FIG.
This will be described with reference to FIG. Under boundary lubrication conditions where oil runs out under high speed and high load, the rotational force of the shaft (not shown)
It acts as a force P that pulls in the tangential direction on the surface (sliding surface) of the cylindrical bearing alloy 2 ', propagates in the bearing alloy 2', the stress direction is reversed in the pure aluminum-based bonding layer 30, and the back metal A tensile force P'is generated in the inner layer 4, and as a result, shearing stress is generated in the weakest pure aluminum-based bonding layer 30. Therefore, when the bearing alloy 2 ′ is destroyed,
A crack propagates through the continuous pure aluminum layer S in the pure aluminum-based bonding layer 30 to cause separation from the bearing alloy 2 ', and the separated bearing alloy 2'is scattered. In some cases, seizure of the shaft may occur. Develop.
【０００９】また、図８に示すようにニッケルメッキ等
からなる接合層３０’を有する軸受１’では、軸受合金
２’の表面に引つ張り力Ｐが発生したとき、ニッケルメ
ッキと軸受合金２’との接合界面２’ａにきわめて大き
な剪断応力（Ｐ1 ＋Ｐ2 ）が働き、許容応力以上の剪断
応力が働けば、界面２’ａから容易に剥離してしまう。Further, in the bearing 1'having the joining layer 30 'made of nickel plating or the like as shown in FIG. 8, when the tensile force P is generated on the surface of the bearing alloy 2', the nickel plating and the bearing alloy 2 are formed. If a very large shear stress (P 1 + P 2 ) acts on the joint interface 2 ′ a with ′ and a shear stress exceeding the allowable stress is exerted, it is easily separated from the interface 2 ′ a.
【００１０】本発明の目的は、アルミニウム系軸受１に
おいて、純アルミニウム系接合層３０を使用してアルミ
ニウム系の軸受合金２’層と裏金４との接合力の低下を
防止しながら、周方向に連続した純アルミニウム層Ｓを
形成しないようにし、繰り返し高負荷がかかつた際に軸
受合金２’層と裏金４との間に発生する層間すべりを抑
え、結果的にアルミニウム系軸受１の耐荷重性を増進さ
せることにある。It is an object of the present invention to use the pure aluminum-based bonding layer 30 in the aluminum-based bearing 1 while preventing a decrease in the bonding force between the aluminum-based bearing alloy 2'layer and the backing metal 4 while maintaining the circumferential direction. By not forming a continuous pure aluminum layer S, interlayer slip that occurs between the bearing alloy 2 ′ layer and the backing metal 4 when repeatedly subjected to a high load is suppressed, and as a result, the load bearing capacity of the aluminum-based bearing 1 is increased. To improve sex.
【００１１】[0011]
【課題を解決するための手段】本発明は、このような従
来の技術的課題に鑑みてなされたものであり、その構成
は次の通りである。請求項１の発明の構成は、裏金４に
純アルミニウム系接合層３を介在させて軸受合金２が接
合されるアルミニウム系軸受おいて、純アルミニウム系
接合層３の最大厚さをＴ、該接合層３と裏金４との接合
界面４ａのＪＩＳ表面粗さ（ＢＯ６０１）、表面うねり
（ＢＯ６１０）に定める最大高さをＲｍａｘ、転がり円
最大うねりをＷEMとし、Ｔ＜Ｒｍａｘ及びＴ＜ＷEMの内
の少なくとも一方を満たすことを特徴とするアルミニウ
ム系軸受である。SUMMARY OF THE INVENTION The present invention has been made in view of such conventional technical problems, and has the following configuration. In the aluminum-based bearing in which the bearing alloy 2 is bonded to the back metal 4 with the pure aluminum-based bonding layer 3 interposed therebetween, the maximum thickness of the pure aluminum-based bonding layer 3 is T, and the bonding is performed. JIS surface roughness of the bonding interface 4a between the layer 3 and the backing 4 (BO601), the maximum height as stipulated in the surface waviness (BO610) Rmax, the rolling circle maximum waviness and W EM, T <the Rmax and T <W EM The aluminum-based bearing is characterized by satisfying at least one of the above.
【００１２】[0012]
【作用】請求項１の発明によれば、純アルミニウム系接
合層３内ですべりが発生し、アルミニウム系の軸受合金
２層が破壊に至ることが良好に抑制される。すなわち、
高速・高負荷下では、軸の回転力が軸受合金２の表面を
接線方向に引つ張る大きな力として働き、軸受合金２層
内を伝播し、純アルミニウム系接合層３内で応力方向が
反転し、最も弱い純アルミニウム系接合層３内に剪断応
力が発生して層間すべりを生ずる傾向を呈する。しかし
ながら、軸受合金２及び裏金４の凹凸が純アルミニウム
系接合層３を介して噛み合つているので、純アルミニウ
ム系接合層３に作用する剪断応力が緩和され、純アルミ
ニウム系接合層３が破壊されることが良好に抑制され、
かつ、純アルミニウムによつて裏金４と軸受合金２との
接合も確保される。その結果、アルミニウム系軸受１の
耐荷重性が増進され、純アルミニウム系接合層３内をク
ラックが伝播し、軸受合金２に剥離を起こし、剥離した
軸受合金２が飛散し、軸の焼付に発展するという不具合
が防止される。According to the first aspect of the present invention, slippage in the pure aluminum-based joining layer 3 and destruction of the two aluminum-based bearing alloy layers can be effectively suppressed. That is,
Under high speed and high load, the rotational force of the shaft acts as a large force that pulls the surface of the bearing alloy 2 tangentially, propagates in the bearing alloy 2 layer, and the stress direction is reversed in the pure aluminum-based joining layer 3. However, there is a tendency that shear stress is generated in the weakest pure aluminum-based bonding layer 3 to cause interlayer slip. However, since the irregularities of the bearing alloy 2 and the back metal 4 are meshed with each other through the pure aluminum-based bonding layer 3, the shear stress acting on the pure aluminum-based bonding layer 3 is relaxed and the pure aluminum-based bonding layer 3 is destroyed. Is well suppressed,
Moreover, the joining of the back metal 4 and the bearing alloy 2 is secured by pure aluminum. As a result, the load bearing capacity of the aluminum-based bearing 1 is increased, cracks propagate in the pure aluminum-based bonding layer 3, peeling occurs in the bearing alloy 2, the peeled bearing alloy 2 scatters, and seizure of the shaft develops. The trouble of doing is prevented.
【００１３】[0013]
【発明の実施の形態】以下、本発明の実施の形態につい
て図面を参照して説明する。図１〜図４は、本発明の１
実施の形態に係るアルミニウム系軸受を示す。図１中に
おいて符号１は半円筒形状をなすアルミニウム系軸受で
あり、アルミニウム系軸受１は、摺動摩擦面となる軸受
合金２と、純アルミニウム系接合層３と、鋼製の裏金４
とを有している。軸受合金２は、アルミニウム−錫系、
アルミニウム−鉛系、アルミニウム−シリコン系又はア
ルミニウム−マグネシウム系の合金であり、純アルミニ
ウム系接合層３は、９９．００％以上の純アルミニウム
（ＪＩＳに定める１０００番台のアルミニウム）によつ
て形成され、この軸受合金２と裏金４とが、純アルミニ
ウム系接合層３を介在してロール圧接によつて接合され
ている。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show a first embodiment of the present invention.
1 shows an aluminum bearing according to an embodiment. In FIG. 1, reference numeral 1 is an aluminum bearing having a semi-cylindrical shape, and the aluminum bearing 1 includes a bearing alloy 2 serving as a sliding friction surface, a pure aluminum joining layer 3, and a steel backing 4.
And Bearing alloy 2 is an aluminum-tin system,
An aluminum-lead alloy, an aluminum-silicon alloy, or an aluminum-magnesium alloy, and the pure aluminum-based bonding layer 3 is formed of 99.00% or more of pure aluminum (1000 series aluminum). The bearing alloy 2 and the back metal 4 are joined by roll pressure welding with the pure aluminum-based joining layer 3 interposed.
【００１４】このアルミニウム系軸受１の純アルミニウ
ム系接合層３は、図２に示す構造を有している。すなわ
ち、純アルミニウム系接合層３の最大厚さをＴ、裏金４
表面（純アルミニウム系接合層３と裏金４との接合界面
４ａ）の最大高さをＲｍａｘ（ＪＩＳＢＯ６０１に定め
る）、転がり円最大うねりをＷEM（ＪＩＳＢＯ６１０に
定める）として、Ｔ＜Ｒｍａｘ及びＴ＜ＷEMの内の少な
くとも一方の条件を満たしている。The pure aluminum-based bonding layer 3 of the aluminum-based bearing 1 has the structure shown in FIG. That is, the maximum thickness of the pure aluminum-based bonding layer 3 is T, and the back metal 4 is
As a surface maximum (pure aluminum-based bonding interface 4a between the bonding layer 3 and the backing 4) (specified in JISBO601) height Rmax, the rolling circle maximum waviness (defined in JISBO610) W EM, T <Rmax and T <W Meets at least one of the EM requirements.
【００１５】裏金４の純アルミニウム系接合層３との界
面４ａのみならず純アルミニウム系接合層３の軸受合金
２との界面２ａにも、それぞれ所定の粗さ及びうねりが
存在する。両界面４ａ，２ａ間の凸部が対向する凹部に
入り込んだ状態は、純アルミニウム系接合層３の厚さが
裏金４の凹凸よりも薄くなるように設定し、純アルミニ
ウム系接合層３のみでは硬い裏金４の凹凸を吸収してし
まわないようにすることで達成される。このような両界
面４ａ，２ａの凹凸は、裏金４については所定砥粒を付
着させた研削ベルトにより、接合直前に裏金４の表面を
研削して所定の凹凸を積極的に形成して界面４ａとな
し、その後、ロール圧接することにより、形成すること
が可能である。従つて、純アルミニウム系接合層３は、
半円筒形状をなすアルミニウム系軸受１の周方向に所定
厚さの平面的な層をなして延在する部分を有していな
い。これにより、連続した強度の弱い純アルミニウム層
（Ｓ）は存在せず、純アルミニウム系接合層３に周方向
の剪断応力の発生する連続層が存在しないことになる。Predetermined roughness and waviness are present not only at the interface 4a of the backing metal 4 with the pure aluminum-based bonding layer 3 but also at the interface 2a of the pure aluminum-based bonding layer 3 with the bearing alloy 2. When the convex portions between both interfaces 4a, 2a enter the opposite concave portions, the thickness of the pure aluminum-based bonding layer 3 is set to be thinner than the unevenness of the backing metal 4, and the pure aluminum-based bonding layer 3 alone is used. This is achieved by preventing the unevenness of the hard backing metal 4 from being absorbed. As for the unevenness of both the interfaces 4a and 2a, the surface of the backing metal 4 is ground immediately before joining by a grinding belt having predetermined abrasive grains adhered to the backing metal 4, and the predetermined unevenness is positively formed to form the interface 4a. After that, it is possible to form by pressing with a roll. Therefore, the pure aluminum-based bonding layer 3 is
The aluminum-based bearing 1 having a semi-cylindrical shape does not have a portion extending in a circumferential direction in a planar layer having a predetermined thickness. As a result, the continuous pure aluminum layer (S) having low strength does not exist, and the pure aluminum-based bonding layer 3 does not include the continuous layer in which shear stress in the circumferential direction is generated.
【００１６】このように、Ｔ＜Ｒｍａｘ及びＴ＜ＷEMの
内の少なくとも一方の条件を満たすアルミニウム系軸受
１によれば、純アルミニウムからなる単一層内を剪断応
力が横切ることはなく、軸受合金２層と裏金４の凹凸が
噛み合つてきわめてすべりにくい構造となる。なお、実
際には、アルミニウム系軸受１の周方向のみならず、中
心軸線方向においても、軸受合金２層と裏金４の凹凸が
純アルミニウム系接合層３を介して噛み合つて、すべり
にくい構造となつている。但し、最大高さＲｍａｘと転
がり円最大うねりＷEMとの関係は、通常、Ｒｍａｘ≧Ｗ
EMであるから、Ｔ＜Ｒｍａｘを満たせば、軸受合金２層
と裏金４とに凹凸噛み合つた形態を与えることができる
が、この凹凸噛み合い状態を十分に与えるためには、Ｔ
＜ＷEMを満たすことが望まれる。As described above, according to the aluminum-based bearing 1 satisfying at least one of T <Rmax and T <W EM , the shear stress does not cross the single layer made of pure aluminum, and the bearing alloy The unevenness of the two layers and the back metal 4 mesh with each other to form a structure that is extremely non-slip. Actually, not only in the circumferential direction of the aluminum-based bearing 1, but also in the direction of the central axis, the irregularities of the bearing alloy 2 layer and the back metal 4 mesh with each other through the pure aluminum-based bonding layer 3 to prevent slipping. I'm running. However, the relationship between the maximum height Rmax and the maximum rolling circle waviness W EM is usually Rmax ≧ W
Since it is EM , if T <Rmax is satisfied, it is possible to give the bearing alloy 2 layer and the backing metal 4 a shape in which unevenness is engaged, but in order to sufficiently give this unevenness engagement state, T
<It is desired to satisfy W EM .
【００１７】しかして、このアルミニウム系軸受１によ
れば、純アルミニウム系接合層３内ですべりが発生し、
アルミニウム系の軸受合金２層が破壊に至ることが良好
に抑制される。すなわち、高速・高負荷下での油切れを
起こした境界潤滑条件下では、軸の回転力が軸受合金２
の表面を接線方向に引つ張る大きな力として働き、軸受
合金２層内を伝播し、純アルミニウム系接合層３内で応
力方向が反転し、最も弱い純アルミニウム系接合層３内
に剪断応力が発生する傾向を呈する。しかしながら、ア
ルミニウム系軸受１の少なくとも周方向において、軸受
合金２及び裏金４の凹凸が純アルミニウム系接合層３を
介して噛み合つているので、純アルミニウム系接合層３
に作用する剪断応力が緩和されて、純アルミニウム系接
合層３が破壊されることが良好に抑制され、かつ、純ア
ルミニウムによつて裏金４と軸受合金２との接合も確保
される。その結果、純アルミニウム系接合層３内をクラ
ックが伝播し、軸受合金２に剥離を起こし、剥離した軸
受合金２が飛散し、軸の焼付に発展するという不具合が
防止される。However, according to this aluminum-based bearing 1, slip occurs in the pure aluminum-based bonding layer 3,
The destruction of the two layers of the aluminum-based bearing alloy is well suppressed. In other words, under the boundary lubrication condition where the oil runs out under high speed and high load, the rotational force of the shaft causes the bearing alloy 2
Acts as a large force to pull the surface of the alloy in the tangential direction, propagates in the bearing alloy 2 layer, the stress direction is reversed in the pure aluminum-based bonding layer 3, and the shear stress is generated in the weakest pure aluminum-based bonding layer 3. Exhibit a tendency to occur. However, since the irregularities of the bearing alloy 2 and the back metal 4 are engaged with each other through the pure aluminum-based bonding layer 3 in at least the circumferential direction of the aluminum-based bearing 1, the pure aluminum-based bonding layer 3
The shearing stress that acts on the aluminum alloy is relaxed, and the pure aluminum-based bonding layer 3 is effectively prevented from being broken, and the bonding between the back metal 4 and the bearing alloy 2 is also secured by the pure aluminum. As a result, it is possible to prevent a problem that cracks propagate in the pure aluminum-based bonding layer 3, the bearing alloy 2 is peeled off, the peeled bearing alloy 2 scatters, and seizure of the shaft develops.
【００１８】[0018]
【実施例１】先ず、表１，表２に示す構成のアルミニウ
ム系軸受１をそれぞれ作成した。その作成方法は、所定
のアルミニウム−錫系の軸受合金２（Ａｌ−１３重量％
Ｓｎ−２重量％Ｐｂ−３重量％Ｓｉ−１重量％Ｃｕ）を
連続鋳造し、上下面を面削し、続いて冷間圧延により圧
延し、最終的に表１，表２の純アルミニウム系接合層３
の厚さを実現させるために、１．２ｍｍ、０．９ｍｍ、
０．６ｍｍ、０．３ｍｍの厚さの純アルミニウム（ＪＩ
ＳＡ１０５０合金）と一旦接合し、最後に厚さ１．５ｍ
ｍの裏金４とロール圧接し、テスト試料を作成した。ま
た、このとき、裏金４の接合界面４ａは、完成材で最大
高さＲｍａｘ及び転がり円最大うねりＷEMが共に２５μ
ｍとなるように調整した。すなわち、上記の厚さの純ア
ルミニウムを圧接することで、表１，表２の純アルミニ
ウム系接合層３の厚さが４５μｍ、３０μｍの従来品
（試料Ｎｏ．１，２，６，７）を形成し、また、本発明
品として、純アルミニウム系接合層３の最大厚さＴが２
０μｍ、１５μｍのものを試料Ｎｏ．４，５，９，１０
として得た。一方、純アルミニウム系接合層３に代えて
ニッケルメッキ層を形成したものも、試料Ｎｏ．３，８
として従来品に加えた。なお、表１は、本発明品がＴ＜
Ｒｍａｘを充足する場合の試験結果を示し、表２は、本
発明品がＴ＜ＷEMを充足する場合の試験結果を示す。Example 1 First, aluminum-based bearings 1 having the configurations shown in Tables 1 and 2 were produced. The manufacturing method is as follows: a predetermined aluminum-tin based bearing alloy 2 (Al-13% by weight)
Sn-2% by weight Pb-3% by weight Si-1% by weight Cu) is continuously cast, the upper and lower surfaces are chamfered, and subsequently rolled by cold rolling, and finally the pure aluminum type of Tables 1 and 2 is used. Bonding layer 3
To achieve the thickness of 1.2 mm, 0.9 mm,
Pure aluminum with a thickness of 0.6 mm and 0.3 mm (JI
SA1050 alloy) and once joined, and finally thickness 1.5m
A test sample was prepared by pressing the back metal 4 of m with a roll. At this time, the joint interface 4a of the backing 4 has a maximum height Rmax and a rolling circle maximum waviness W EM both of which are 25 μ in the finished material.
m. That is, by pressing the pure aluminum having the above-mentioned thickness, the conventional products (Sample Nos. 1, 2, 6, 7) having the pure aluminum-based bonding layers 3 in Tables 1 and 2 having the thicknesses of 45 μm and 30 μm were prepared. In addition, as a product of the present invention, the maximum thickness T of the pure aluminum-based bonding layer 3 is 2
Sample Nos. 0 and 15 μm were used. 4, 5, 9, 10
As obtained. On the other hand, in the case where the nickel-plated layer was formed instead of the pure aluminum-based bonding layer 3, Sample No. 3,8
As a conventional product. Table 1 shows that the product of the present invention has T <
The test result when Rmax is satisfied is shown, and Table 2 shows the test result when the product of the present invention satisfies T <W EM .
【００１９】[0019]
【表１】 [Table 1]
【００２０】[0020]
【表２】 [Table 2]
【００２１】作成されたこれらの試料を次の２つの方法
で評価した。その一つは、剪断接合力をみる剪断テス
ト、もう一つは軸受性能を総合的に評価する疲労テスト
である。These prepared samples were evaluated by the following two methods. One of them is a shear test to see the shear joining force, and the other is a fatigue test to comprehensively evaluate the bearing performance.
【００２２】先ず、剪断接合力をみるテストの方法は、
各試料（Ｎｏ．１〜１０）を幅１ｍｍ、長さ１５ｍｍの
大きさに切り出し、図３，図４に示すように剪断テスト
用治具にセットした。すなわち、軸受合金２を突出させ
た状態として裏金４を第１治具６に固定ねじ７によつて
固定し、軸受合金２に第２治具８を係合させ、軸受合金
２と裏金４との接合界面４ａの純アルミニウム系接合層
３が剪断されるようにした。そして、第２治具８に圧下
力Ｎを作用させ、純アルミニウム系接合層３（又はニッ
ケルメッキ層）が剪断される際の応力の最大値を剪断応
力とした。その結果を表１及び表２に示す。なお、剪断
応力の単位は、ｋｇｆ／ｍｍ2 で示した。First, the test method for examining the shear bonding force is as follows.
Each sample (No. 1 to 10) was cut into a size having a width of 1 mm and a length of 15 mm and set in a shear test jig as shown in FIGS. That is, with the bearing alloy 2 projected, the backing metal 4 is fixed to the first jig 6 with the fixing screw 7, and the second jig 8 is engaged with the bearing alloy 2 to form the bearing alloy 2 and the backing metal 4. The pure aluminum-based bonding layer 3 at the bonding interface 4a was sheared. Then, a reduction force N was applied to the second jig 8 and the maximum value of the stress when the pure aluminum bonding layer 3 (or the nickel plating layer) was sheared was defined as the shear stress. The results are shown in Tables 1 and 2. The unit of shear stress is kgf / mm 2 .
【００２３】一方、疲労試験には、いわゆるアンダーウ
ッド試験機と呼ばれるものを使用した。これは実際のエ
ンジンの条件とほぼ同じようにすべり軸受をコンロッド
に固定し、軸に偏心荷重をかける試験機であり、軸受合
金２が剥離せず、正常な状態を維持できた耐久時間（疲
労時間）で評価するものである。以下にテスト条件を記
す。On the other hand, a so-called underwood tester was used for the fatigue test. This is a tester that fixes the sliding bearing to the connecting rod and applies an eccentric load to the shaft in almost the same way as the actual engine conditions. The bearing alloy 2 did not peel off, and the durability time (fatigue Time). The test conditions are described below.
【００２４】 面圧 ８００ｋｇｆ／ｃｍ2 回転数 ３５００ｒｐｍ 相手材 ＦＣＤ７０ 粗さ０．８〜１．５Ｓ 使用オイル ＳＡＥ３０ 油温 １５０℃±５℃ なお、上記各テストは各試料数ｎ＝５として行い、これ
らの平均値をデータとして表１，表２に示した。Surface pressure 800 kgf / cm 2 Number of revolutions 3500 rpm Counterpart material FCD70 Roughness 0.8 to 1.5S Oil used SAE30 Oil temperature 150 ° C. ± 5 ° C. In addition, each of the above tests was performed with each sample number n = 5. The average values of are shown in Tables 1 and 2.
【００２５】この表１，表２に示す結果をみれば、本発
明の純アルミニウム系接合層３の最大厚さＴ＜接合層３
と裏金４との接合界面４ａの最大高さをＲｍａｘ、及び
純アルミニウム系接合層３の最大厚さＴ＜転がり円最大
うねりＷEMのいずれの条件をも満たさない従来品Ｎｏ．
１、２、６、７及びニッケルメッキボンド品（試料Ｎ
ｏ．３、８）は、剪断応力から分かる接合力も弱く、従
つてアンダーウッド試験でも７５〜９５時間と短い時間
しかもたないのに比べて、本発明品は剪断応力も大き
く、疲労時間も１３０〜１５０時間と格段に改善されて
いる。すなわち、こうした接合界面２ａ，４ａの合理的
な改良が、アルミニウム系軸受１の耐荷重性を飛躍的に
向上させることが裏付けられた。From the results shown in Tables 1 and 2, the maximum thickness T of the pure aluminum-based joining layer 3 of the present invention <the joining layer 3
The maximum height of the joining interface 4a between the backing metal 4 and the back metal 4 is Rmax, and the maximum thickness T of the pure aluminum-based joining layer 3 <Rolling circle maximum waviness W EM .
1, 2, 6, 7 and nickel-plated bond products (Sample N
o. Nos. 3 and 8) have a weak joining force which can be seen from the shear stress, and accordingly, the underwood test lasts only a short time of 75 to 95 hours, whereas the product of the present invention has a large shear stress and a fatigue time of 130 to 150. It has been improved significantly with time. That is, it was proved that such a rational improvement of the joint interfaces 2a and 4a dramatically improves the load bearing capacity of the aluminum-based bearing 1.
【００２６】[0026]
【発明の効果】以上の説明によつて理解されるように、
本発明に係るアルミニウム系軸受によれば、接合界面の
剪断応力によつて代表される接合強度が、所定の条件を
満たさない従来品に比べて著しく改善され、耐荷重８０
０ｋｇｆ／ｃｍ2 という高負荷条件においても有効な疲
労強度を有するすべり軸受が製造可能になつた。すなわ
ち、アルミニウム系軸受の支承能力が飛躍的に向上し、
特に高負荷、高速回転用に好適なアルミニウム系軸受の
提供が可能となる。As will be understood from the above description,
According to the aluminum-based bearing of the present invention, the joint strength represented by the shear stress at the joint interface is remarkably improved as compared with the conventional product that does not satisfy the predetermined condition, and the load bearing capacity is 80%.
It has become possible to manufacture a slide bearing having an effective fatigue strength even under a high load condition of 0 kgf / cm 2 . In other words, the bearing capacity of aluminum bearings has dramatically improved,
In particular, it is possible to provide an aluminum bearing suitable for high load and high speed rotation.
【図１】 本発明の１実施の形態に係るアルミニウム系
軸受を示す断面図。FIG. 1 is a sectional view showing an aluminum bearing according to an embodiment of the present invention.
【図２】 同じく要部を拡大して示す断面図。FIG. 2 is a sectional view showing an enlarged main part of the same.
【図３】 同じく剪断テスト用治具を示す概略図。FIG. 3 is a schematic view showing a shear test jig.
【図４】 同じく要部を拡大して示す断面図。FIG. 4 is a sectional view showing an enlarged main part of the same.
【図５】 従来のアルミニウム系軸受を示す断面図。FIG. 5 is a cross-sectional view showing a conventional aluminum-based bearing.
【図６】 同じく要部を拡大して示す断面図。FIG. 6 is a sectional view showing an enlarged main part of the same.
【図７】 同じく純アルミニウム系接合層を有するアル
ミニウム系軸受の応力分布図。FIG. 7 is a stress distribution diagram of an aluminum bearing having the same pure aluminum joint layer.
【図８】 同じくニッケルメッキ層を有するアルミニウ
ム系軸受の応力分布図。FIG. 8 is a stress distribution diagram of an aluminum bearing which also has a nickel plating layer.
１：アルミニウム系軸受、２：軸受合金、３：純アルミ
ニウム系接合層、４：裏金、Ｔ：最大厚さ、Ｒｍａｘ：
最大高さ、ＷEM：転がり円最大うねり。1: Aluminum-based bearing, 2: Bearing alloy, 3: Pure aluminum-based bonding layer, 4: Back metal, T: Maximum thickness, Rmax:
Maximum height, W EM : Maximum rolling circle waviness.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 坂井 武志 千葉県習志野市実籾町１丁目687番地 エ ヌデーシー株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takeshi Sakai 1-687 Mitomicho, Narashino, Chiba Prefecture NDC Corporation
Claims (1)
（３）を介在させて軸受合金（２）が接合されるアルミ
ニウム系軸受おいて、純アルミニウム系接合層（３）の
最大厚さをＴ、該接合層（３）と裏金（４）との接合界
面（４ａ）のＪＩＳ表面粗さ（ＢＯ６０１）、表面うね
り（ＢＯ６１０）に定める最大高さをＲｍａｘ、転がり
円最大うねりをＷEMとし、Ｔ＜Ｒｍａｘ及びＴ＜ＷEMの
内の少なくとも一方を満たすことを特徴とするアルミニ
ウム系軸受。1. In an aluminum bearing in which a bearing alloy (2) is bonded to a backing metal (4) with a pure aluminum bonding layer (3) interposed, the maximum thickness of the pure aluminum bonding layer (3) is set. T, the bonding layer (3) and JIS surface roughness of the backing (4) bonding with the surface (4a) (BO601), the maximum height as stipulated in the surface waviness (BO610) Rmax, the rolling circle maximum waviness and W EM , T <Rmax and T <W EM , at least one of which is satisfied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7262487A JP2944919B2 (en) | 1995-09-14 | 1995-09-14 | Aluminum bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7262487A JP2944919B2 (en) | 1995-09-14 | 1995-09-14 | Aluminum bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0979264A true JPH0979264A (en) | 1997-03-25 |
| JP2944919B2 JP2944919B2 (en) | 1999-09-06 |
Family
ID=17376481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7262487A Expired - Fee Related JP2944919B2 (en) | 1995-09-14 | 1995-09-14 | Aluminum bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2944919B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014157650A1 (en) * | 2013-03-29 | 2014-10-02 | 大豊工業株式会社 | Aluminum alloy, slide bearing, and slide bearing manufacturing method |
| JP2015514933A (en) * | 2012-01-25 | 2015-05-21 | ミーバ グライトラガー ゲゼルシャフト ミット ベシュレンクテル ハフツング | Sliding bearing manufacturing method |
-
1995
- 1995-09-14 JP JP7262487A patent/JP2944919B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015514933A (en) * | 2012-01-25 | 2015-05-21 | ミーバ グライトラガー ゲゼルシャフト ミット ベシュレンクテル ハフツング | Sliding bearing manufacturing method |
| WO2014157650A1 (en) * | 2013-03-29 | 2014-10-02 | 大豊工業株式会社 | Aluminum alloy, slide bearing, and slide bearing manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2944919B2 (en) | 1999-09-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4696867A (en) | Aluminum based bearing alloys | |
| JP3388501B2 (en) | Plain bearing | |
| KR940002490B1 (en) | Aluminum based alloy bearing having strengthened intermediate bonding layer | |
| JPH0819946B2 (en) | Multi-layer aluminum base alloy bearing with excellent compatibility and fatigue resistance | |
| GB1577059A (en) | Composite metal bearings | |
| KR19980080189A (en) | Second pressure ring for aluminum cylinder and manufacturing method thereof | |
| JPH0979264A (en) | Aluminum bearing | |
| JPH084771A (en) | Plain bearing | |
| Sarkar et al. | Wear characteristics, friction and surface topography observed in the dry sliding of as-cast and agehardening Al-Si alloys | |
| Masoumi et al. | Interface characterization and formability of two and three-layer composite sheets manufactured by roll bonding | |
| WO1999041512A1 (en) | Sliding-contact bearings | |
| JP3754315B2 (en) | Multi-layer sliding material | |
| EP2095940B1 (en) | Sliding member | |
| EP2041327B1 (en) | Aluminium bearing alloy aluminiumlagerlegierung | |
| KR101288336B1 (en) | Bearing having embedded hard particle layer and overlay and method of manufacture | |
| JPS60230952A (en) | Sliding aluminum alloy | |
| KR100235835B1 (en) | Material for slide bearing | |
| Gebretsadik et al. | Seizure behaviour of Pb-free engine bearing materials under dry condition | |
| JPH11223219A (en) | Sliding bearing | |
| JP2001207230A (en) | Bearing material | |
| JPH10159853A (en) | Sliding member, supporting member, and combination of them with excellent fretting damage resistance | |
| JPS62224722A (en) | Bearing material | |
| JP3045000B2 (en) | Processing equipment for plain bearings | |
| Navidirad et al. | Investigation on the strain induced oxide layer fracture and bonding during cold rolling of aluminum alloys | |
| JP2667874B2 (en) | Photosensitive drum |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090625 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100625 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110625 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120625 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130625 Year of fee payment: 14 |
|
| LAPS | Cancellation because of no payment of annual fees |