JPH07151148A - Overlay alloy for slide bearing - Google Patents
Overlay alloy for slide bearingInfo
- Publication number
- JPH07151148A JPH07151148A JP32324293A JP32324293A JPH07151148A JP H07151148 A JPH07151148 A JP H07151148A JP 32324293 A JP32324293 A JP 32324293A JP 32324293 A JP32324293 A JP 32324293A JP H07151148 A JPH07151148 A JP H07151148A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- overlay
- silver
- bearing
- plating
- 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.)
- Pending
Links
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 50
- 239000000956 alloy Substances 0.000 title claims abstract description 50
- 229910052709 silver Inorganic materials 0.000 claims abstract description 24
- 239000004332 silver Substances 0.000 claims abstract description 24
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052718 tin Inorganic materials 0.000 claims abstract description 19
- 239000010949 copper Substances 0.000 claims abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052802 copper Inorganic materials 0.000 claims abstract description 15
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 21
- 238000007747 plating Methods 0.000 abstract description 20
- 239000001996 bearing alloy Substances 0.000 abstract description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 13
- 239000000203 mixture Substances 0.000 abstract description 12
- 229910020220 Pb—Sn Inorganic materials 0.000 abstract description 11
- 229910020888 Sn-Cu Inorganic materials 0.000 abstract description 8
- 229910019204 Sn—Cu Inorganic materials 0.000 abstract description 8
- 238000009713 electroplating Methods 0.000 abstract description 8
- 229910052759 nickel Inorganic materials 0.000 abstract description 5
- LFAGQMCIGQNPJG-UHFFFAOYSA-N silver cyanide Chemical compound [Ag+].N#[C-] LFAGQMCIGQNPJG-UHFFFAOYSA-N 0.000 abstract description 2
- 229940098221 silver cyanide Drugs 0.000 abstract description 2
- 238000005461 lubrication Methods 0.000 abstract 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910000881 Cu alloy Inorganic materials 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical group [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 229920000159 gelatin Polymers 0.000 description 2
- 239000008273 gelatin Substances 0.000 description 2
- 235000019322 gelatine Nutrition 0.000 description 2
- 235000011852 gelatine desserts Nutrition 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- 229960001755 resorcinol Drugs 0.000 description 2
- 229910000897 Babbitt (metal) Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 229910020813 Sn-C Inorganic materials 0.000 description 1
- 229910018732 Sn—C Inorganic materials 0.000 description 1
- 229910018956 Sn—In Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- WIKSRXFQIZQFEH-UHFFFAOYSA-N [Cu].[Pb] Chemical group [Cu].[Pb] WIKSRXFQIZQFEH-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 102200082816 rs34868397 Human genes 0.000 description 1
- 150000003378 silver Chemical class 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はすべり軸受用オ−バレイ
合金に係り、詳しくは、近年の内燃機関の出力増大によ
って潤滑油の温度が上昇した高温条件下においても耐摩
耗性及び耐疲労性を充分に発揮する鉛を主成分とするす
べり軸受用オ−バレイ合金に係わる。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an overlay alloy for sliding bearings, and more particularly to wear resistance and fatigue resistance even under high temperature conditions in which the temperature of lubricating oil has risen due to the recent increase in the output of internal combustion engines. The present invention relates to an overlay alloy for slide bearings containing lead as a main component, which fully exerts the above-mentioned effect.
【０００２】[0002]
【従来の技術】従来、内燃機関に使用されている軸受メ
タルは半割状若しくは円筒状の鋼を裏金とし、これに銅
系若しくはアルミニウム系の軸受合金を複層化したもの
である。これら高荷重用軸受として開発された銅−鉛軸
受合金、ブロンズ軸受合金およびアルミニウム軸受合金
等は耐荷重性はすぐれているが、軸受合金に必要なその
他の特性、すなわち、耐焼付性、埋収性、なじみ性等に
おいては問題があり、この解決のために埋収性、なじみ
性を備えた金属を軸受合金の上にオ−バレイする必要が
ある。例えば、従来の自動車用軸受では裏金上に中間層
として銅またはアルミニウム合金を焼結、鋳造または圧
接等の方法によって密着させ、更に、その上に厚さ１０
〜３０μのオ−バレイ層を施した３層軸受が使用されて
いる。このオ−バレイ層は軸受の耐摩耗性、なじみ性お
よび異物の埋収性向上の効果があり、オ−バレイの組成
としては従来から、Ｐｂ−Ｓｎ系、Ｐｂ−Ｓｎ−Ｃｕ
系、Ｐｂ−Ｓｎ−Ｉｎ系等が知られ、特に、米国特許２
６０５１４９号によって開示された鉛８５〜９５％、錫
８〜１２％、銅２〜３％のＰｂ−Ｓｎ−Ｃｕ系オ−バレ
イが最も多く使用されている。このオ−バレイ中の鉛は
軸受とジャ−ナルとのなじみ性および潤滑油中の異物の
埋収性を向上し、錫は耐食性を良くし、銅は耐疲労性向
上の役割を果している。2. Description of the Related Art Conventionally, a bearing metal used in an internal combustion engine has a half- or cylindrical steel as a backing metal and a copper-based or aluminum-based bearing alloy as a multilayer. Copper-lead bearing alloys, bronze bearing alloys, and aluminum bearing alloys developed for these high-load bearings have excellent load-bearing capacity, but other properties required for bearing alloys, namely seizure resistance and burial However, there is a problem in terms of compatibility and compatibility, and in order to solve this problem, it is necessary to overlay a bearing alloy with a metal having embeddability and compatibility. For example, in a conventional automobile bearing, copper or aluminum alloy is adhered as an intermediate layer on a back metal by a method such as sintering, casting or pressure welding, and further, a thickness of 10 is applied thereon.
A three-layer bearing with an overlay layer of .about.30 .mu. Is used. This overlay layer has the effects of improving the wear resistance of the bearing, the conformability, and the embedding property of foreign matter, and the overlay composition has hitherto been a Pb-Sn system or a Pb-Sn-Cu system.
System, Pb-Sn-In system, etc. are known, and in particular, US Pat.
The Pb-Sn-Cu based overlay of 85 to 95% lead, 8 to 12% tin, and 2 to 3% copper disclosed by 605149 is most used. Lead in this overlay improves the compatibility between the bearing and the journal and the embedment of foreign matter in the lubricating oil, tin improves the corrosion resistance, and copper plays the role of improving the fatigue resistance.
【０００３】しかし、近年、内燃機関が小型軽量化や高
出力化されるに伴なって軸受の使用条件がさらに過酷に
なり、上記のオ−バレイ層を施した軸受では潤滑油の温
度が上昇するにつれてオ−バレイが軟化し、耐摩耗性や
耐疲労性が悪くなる現象がクロ−ズアップされ、これら
の問題の改良されたオ−バレイ合金の開発が強く求めら
れている。However, in recent years, the operating conditions of the bearing have become more severe as the internal combustion engine has become smaller and lighter and the output has been increased, and the temperature of the lubricating oil rises in the bearing having the above overlay layer. As a result, the phenomenon that the overlay is softened and wear resistance and fatigue resistance are deteriorated is improved, and there is a strong demand for the development of an overlay alloy in which these problems are improved.
【０００４】[0004]
【発明が解決しようとする課題】本発明は上記の問題点
を解決することを目的としてなされたもので、具体的に
は、従来のオ−バレイ合金に銀を加えることによって、
高油温下における耐摩耗性及び耐疲労性を向上させた新
規なオ−バレイ合金を提供することを課題とする。SUMMARY OF THE INVENTION The present invention has been made for the purpose of solving the above problems. Specifically, by adding silver to a conventional Overlay alloy,
An object of the present invention is to provide a novel Overlay alloy having improved wear resistance and fatigue resistance under high oil temperature.
【０００５】[0005]
【課題を解決するための手段】すなわち、本発明は重量
で銀０．１〜５％、錫２〜１２％を含有して、若しくは
さらに銅０．１〜５％を含有して、残余が実質的に鉛か
らなることを特徴とするすべり軸受用オ−バレイ合金に
係る。That is, the present invention contains 0.1 to 5% by weight of silver and 2 to 12% of tin, or 0.1 to 5% of copper, and the balance is The present invention relates to an overlay alloy for slide bearings, which is substantially composed of lead.
【０００６】従来のＰｂ−Ｓｎ系またはＰｂ−Ｓｎ−Ｃ
ｕ系オ−バレイ合金において、錫は鉛と固溶体となりマ
トリックスを形成して存在するもの、及びこのマトリッ
クス中に銅−錫の金属化合物を形成して存在するものが
あり、さらに残りの錫は微細な錫の結晶となってマトリ
ックス中に点在する。しかし、錫リッチなＰｂ−Ｓｎ共
晶温度が１８３℃と高くないため、高油温に接すると液
相が発生し、そのため、合金強度低下が著しくなってオ
−バレイの摩耗や疲労を引き起しやすい。本発明者はＰ
ｂ−Ｓｎ系またはＰｂ−Ｓｎ−Ｃｕ系合金に別成分を加
えることによってＰｂ−Ｓｎ系、Ｐｂ−Ｓｎ−Ｃｕ系合
金オ−バレイの上記欠点を改善する研究を鋭意進めた結
果、銀の添加が著効のあることを認め、本発明に到達し
た。Conventional Pb-Sn system or Pb-Sn-C
In u-based Overlay alloys, tin exists in the form of solid solution with lead and forms a matrix, and exists in the form of a metal compound of copper-tin in the matrix. It becomes a tin crystal and is scattered in the matrix. However, since the tin-rich Pb-Sn eutectic temperature is not as high as 183 ° C, a liquid phase is generated when contacting with a high oil temperature, and therefore, the alloy strength is remarkably deteriorated, causing wear and fatigue of the overlay. It's easy to do. The inventor
As a result of earnestly advancing research to improve the above-mentioned drawbacks of the Pb-Sn series and Pb-Sn-Cu series alloy overlays by adding another component to the b-Sn series or Pb-Sn-Cu series alloy, the addition of silver was added. Has been found to be extremely effective and the present invention has been reached.
【０００７】すなわち、Ｐｂ−Ｓｎ系またはＰｂ−Ｓｎ
−Ｃｕ系合金に銀を添加すると、合金中の銀リッチな部
分ではＡｇ3Ｓｎの金属間化合物が析出する。That is, Pb-Sn system or Pb-Sn
When silver is added to the —Cu-based alloy, an intermetallic compound of Ag 3 Sn is precipitated in a silver-rich portion of the alloy.
【０００８】そのため、上記Ｐｂ合金の液相が発生する
共晶温度が高くなり、同時に合金の硬さも向上するので
圧縮抵抗及び耐クリ−プ性も向上する。従って、本発明
による銀を添加したオ−バレイ合金は従来のＰｂ−Ｓｎ
系またはＰｂ−Ｓｎ−Ｃｕ系合金に較べて高油温での耐
摩耗性、耐疲労性が大巾に改善される。Therefore, the eutectic temperature at which the liquid phase of the Pb alloy is generated is increased, and at the same time, the hardness of the alloy is improved, so that the compression resistance and the creep resistance are also improved. Therefore, the silver-added overlay alloy according to the present invention has a conventional Pb-Sn content.
The wear resistance and fatigue resistance at high oil temperatures are greatly improved as compared with the alloys or Pb-Sn-Cu alloys.
【０００９】本発明のオ−バレイ合金は電気メッキ法や
スパッタリング等の気相メッキ法で製造できるが、低コ
ストで製造できる電気メッキ法が有利である。例えば、
鉛、錫または鉛、錫、銅の各硼弗化物を含む処理浴を用
いて軸受合金面に従来の如く電気メッキし、該軸受合金
層上にＰｂ−Ｓｎ系またはＰｂ−Ｓｎ−Ｃｕ系の従来の
合金を析出させた後、このオ−バレイ合金の上に例えば
シアン化銀浴からの電気メッキにより銀メッキを施す。
また、シアン浴でなく市販されている非シアン浴でも密
着が確保されれば勿論銀メッキに使用できる。その後、
１２０〜２２０℃に加熱し、従来のオ−バレイ層の中に
銀を拡散させて本発明の組成を有するオ−バレイ合金層
を得ることができる。The Overlay alloy of the present invention can be produced by vapor plating such as electroplating or sputtering, but electroplating which can be produced at low cost is advantageous. For example,
The bearing alloy surface is electroplated in the conventional manner using a treatment bath containing lead, tin or borofluoride of lead, tin, copper, and a Pb-Sn system or a Pb-Sn-Cu system is formed on the bearing alloy layer. After depositing the conventional alloy, this Overlay alloy is silver plated, for example by electroplating from a silver cyanide bath.
Further, it can be used for silver plating as long as the adhesion is secured by using a commercially available non-cyan bath instead of the cyan bath. afterwards,
By heating to 120 to 220 ° C. and diffusing silver into the conventional overlay layer, an overlay alloy layer having the composition of the present invention can be obtained.
【００１０】本発明はオ−バレイ合金中の各元素の役割
と添加量は以下の如くである。According to the present invention, the role and addition amount of each element in the Overlay alloy are as follows.
【００１１】すなわち、錫は鉛の耐食性を向上させる
が、銀が共存する時には低含有量においてもその効果が
保持され、一方、含有量が多くなると液相発生温度が低
下し、耐疲労性及び耐摩耗性が劣化する傾向があり、本
発明においては２〜１２％必要である。That is, tin improves the corrosion resistance of lead, but when silver coexists, its effect is maintained even when the content is low. On the other hand, when the content is high, the liquidus generation temperature is lowered and fatigue resistance and Abrasion resistance tends to deteriorate, and in the present invention, 2 to 12% is necessary.
【００１２】銅はオ−バレイ合金の耐疲労性を向上させ
るために添加されるが、含有量が０．１〜５％で好性能
を発揮する。０．１％以下では効果が不充分であり、５
％以上ではかえって耐疲労強度を落とし、耐食性も低下
する。[0012] Copper is added to improve the fatigue resistance of the Overlay alloy, but when the content is 0.1 to 5%, good performance is exhibited. If it is less than 0.1%, the effect is insufficient, and 5
On the contrary, if it is more than 0.1%, the fatigue strength is rather lowered and the corrosion resistance is also lowered.
【００１３】銀は前述の如くＰｂ−Ｓｎ系またはＰｂ−
Ｓｎ−Ｃｕ系合金の液相発生温度を上昇させると共に硬
さを増加させ、高油温下での合金層の耐摩耗性と耐疲労
性を向上させる。０．１％未満ではその効果が期待でき
ず、５％を超えて添加するとオ−バレイ合金のなじみ
性、埋収性が低下するばかりでなく経済的にも障害とな
る。従って、銀の添加量は０．１〜５％が好適である。As mentioned above, silver is Pb--Sn or Pb--.
It increases the liquid phase generation temperature of the Sn-Cu alloy and increases the hardness, and improves the wear resistance and fatigue resistance of the alloy layer under high oil temperature. If it is less than 0.1%, its effect cannot be expected, and if it is added in excess of 5%, not only the familiarity and embeddability of the Overlay alloy are deteriorated but also an economical obstacle. Therefore, the addition amount of silver is preferably 0.1 to 5%.
【００１４】図１は本発明のすべり軸受用オ−バレイ合
金を有するすべり軸受の断面構成図である。図１におい
て符号１は裏金、２は銅またはアルミニウム合金層、３
はニッケルまたはニッケル合金メッキ層、４が本発明の
オ−バレイ合金層である。この本発明によるオ−バレイ
合金の改善された耐摩耗性、耐疲労性を反映して、本発
明にもとづく図１のすべり軸受は摺動要素としてすぐれ
た特性を示し、極めて有用である。FIG. 1 is a sectional structural view of a slide bearing having an overlay alloy for a slide bearing according to the present invention. In FIG. 1, reference numeral 1 is a back metal, 2 is a copper or aluminum alloy layer, 3
Is a nickel or nickel alloy plating layer, and 4 is an overlay alloy layer of the present invention. Reflecting the improved wear resistance and fatigue resistance of the Overlay alloy according to the present invention, the sliding bearing of FIG. 1 according to the present invention exhibits excellent characteristics as a sliding element and is extremely useful.
【００１５】[0015]
【実施例】以下、本発明を実施例により説明する。EXAMPLES The present invention will be described below with reference to examples.
【００１６】実施例１．まず、軸受合金に対して一般の
電気メッキの場合と同様に脱脂及び酸洗を行なった後、
約１．５ミクロン厚のニッケルまたはニッケル合金メッ
キを行なった。このニッケルまたはニッケル合金の薄メ
ッキ層は、銅系軸受合金の場合、内燃機関の運転時にオ
−バレイ中の錫が下地の銅系軸受合金中に拡散してオ−
バレイの耐腐食性が劣化するのを防止する。また、アル
ミニウム系軸受合金の場合、オ−バレイの密着性を向上
させる。このニッケルまたはニッケル合金メッキの上に
下記浴組成（Ａ）のメッキ浴及び電流密度で電気メッキ
を行なった。 硼弗化鉛（金属鉛として） ６０〜１２０ｇ／ｌ 硼弗化錫（金属錫として） ２〜 １２ｇ／ｌ 浴組成（Ａ） 硼弗化水素酸 ４０〜 ５０ｇ／ｌ レゾルシン １〜 ５ｇ／ｌ ゼラチン ０．１〜０．５ｇ／ｌ 電流密度 １〜４Ａ／ｄｍ2 Example 1. First, after degreasing and pickling the bearing alloy as in the case of general electroplating,
About 1.5 micron thick nickel or nickel alloy plating was performed. In the case of a copper-based bearing alloy, this thin plating layer of nickel or nickel alloy is formed by the diffusion of tin in the overlay into the underlying copper-based bearing alloy during operation of the internal combustion engine.
Prevents the corrosion resistance of the valley from deteriorating. Further, in the case of an aluminum bearing alloy, it improves the adhesion of the overlay. On this nickel or nickel alloy plating, electroplating was performed with a plating bath having the following bath composition (A) and a current density. Lead borofluoride (as metallic lead) 60 to 120 g / l Tin borofluoride (as metallic tin) 2 to 12 g / l Bath composition (A) Hydrofluoric borohydride 40 to 50 g / l Resorcin 1 to 5 g / l Gelatin 0.1 to 0.5 g / l Current density 1 to 4 A / dm 2
【００１７】次にこのメッキの上に銀メッキを施した。
この銀メッキは通常のシアン浴を用い、電流密度１〜３
Ａ／ｄｍ2で各種の厚さに仕上げた。Next, silver plating was applied on this plating.
This silver plating uses a normal cyan bath and has a current density of 1 to 3.
Finished in various thicknesses with A / dm 2 .
【００１８】銀メッキ後、１２０〜２２０℃の温度で約
一時間加熱処理し、銀をＰｂ−Ｓｎオ−バレイ合金層の
中に拡散させ、本発明の所定の組成のオ−バレイ合金を
得た。尚、オ−バレイ合金層の厚さは全て２０ミクロン
とした。After silver plating, heat treatment is performed at a temperature of 120 to 220 ° C. for about 1 hour to diffuse silver into the Pb-Sn overlay alloy layer to obtain an overlay alloy having a predetermined composition of the present invention. It was The thicknesses of the overlay alloy layers were all 20 μm.
【００１９】実施例２．上記実施例１と同様に軸受合金
上にニッケルまたはニッケル合金メッキを行ない、この
メッキ上に下記浴組成（Ｂ）のメッキ浴及び電流密度で
電気メッキを行なった。 硼弗化鉛（金属鉛として） ６０〜１２０ｇ／ｌ 硼弗化錫（金属錫として） ２〜 １２ｇ／ｌ 浴組成（Ｂ） 硼弗化銅（金属銅として） ０．１〜 ５ｇ／ｌ 硼弗化水素酸 ４０〜 ５０ｇ／ｌ レゾルシン １〜 ５ｇ／ｌ ゼラチン ０．１〜０．５ｇ／ｌ 電流密度 １〜４Ａ／ｄｍ2 Example 2. Nickel or nickel alloy plating was performed on the bearing alloy in the same manner as in Example 1, and electroplating was performed on this plating with a plating bath having the following bath composition (B) and a current density. Lead borofluoride (as metallic lead) 60 to 120 g / l Tin borofluoride (as metallic tin) 2 to 12 g / l Bath composition (B) Copper borofluoride (as metallic copper) 0.1 to 5 g / l Bor Hydrofluoric acid 40 to 50 g / l Resorcin 1 to 5 g / l Gelatin 0.1 to 0.5 g / l Current density 1 to 4 A / dm 2
【００２０】上記メッキの上に、銀メッキと拡散熱処理
を実施例１と同様に行なって、本発明の所定の組成のオ
−バレイ合金を得た。On the above plating, silver plating and diffusion heat treatment were performed in the same manner as in Example 1 to obtain an Overlay alloy having a predetermined composition of the present invention.
【００２１】また、従来オ−バレイ合金として、Ｐｂ−
Ｓｎ合金は実施例１の浴組成（Ａ）を用い、Ｐｂ−Ｓｎ
−Ｃｕ合金は実施例２の浴組成（Ｂ）を用いて、夫々を
製作した。Further, as a conventional Overlay alloy, Pb-
For the Sn alloy, the bath composition (A) of Example 1 was used, and Pb-Sn was used.
Each Cu alloy was manufactured using the bath composition (B) of Example 2.
【００２２】本発明オ−バレイ合金の耐摩耗性及び耐疲
労性も評価するため、アンダ−ウッド試験により、荷重
５８．６ＭＰａ、周速８ｍ／秒、オ−バレイ厚０．０２
ｍｍ、軸受背面温度１７５℃、潤滑油ＳＡＥ＃３０、相
手軸Ｓ４５Ｃ・粗さ０．８Ｓ、試験時間６０時間の条件
で試験し、摩耗厚さの測定と目視による外観疲労具合の
観察を行なった。In order to evaluate the wear resistance and fatigue resistance of the overlay alloy of the present invention, a load of 58.6 MPa, a peripheral speed of 8 m / sec, and an overlay thickness of 0.02 were measured by an underwood test.
mm, bearing back surface temperature 175 ° C., lubricating oil SAE # 30, mating shaft S45C, roughness 0.8S, test time 60 hours, the wear thickness was measured and the appearance fatigue condition was visually observed. .
【００２３】前記実施例１、２の方法によって得られた
本発明のオ−バレイ合金と従来合金の各組成及びアンダ
−ウッド試験による評価結果を表１に示した。Table 1 shows each composition of the overlay alloy of the present invention obtained by the method of Examples 1 and 2 and the conventional alloy, and the evaluation results by the underwood test.
【００２４】[0024]
【表１】 [Table 1]
【００２５】表１からわかるように、Ｎｏ．１〜９の本
発明オ−バレイ合金は、Ｎｏ．１０、１１の従来オ−バ
レイ合金に較べて高油温条件下での摩耗が少なく、疲労
程度も良好であり、これは明らかに銀の添加による効果
と判断される。As can be seen from Table 1, No. The overlay alloys of the present invention of Nos. 1 to 9 are Nos. Compared with the conventional Overlay alloys of Nos. 10 and 11, there was less wear under high oil temperature conditions and the degree of fatigue was good, which is clearly judged to be the effect of the addition of silver.
【００２６】[0026]
【発明の効果】以上説明したように、鉛系オ−バレイ合
金に対して銀を添加するという新しい発想によって、重
量で銀０．１〜５％、錫２〜１２％を含有して、若しく
はさらに銅０．１〜５％を含有して、残余が実質的に鉛
からなる本発明のすべり軸受用オ−バレイ合金は、高油
温条件下における耐摩耗性、耐疲労性が、銀を添加しな
い従来品に較べて格段に向上している。As described above, according to the new idea of adding silver to a lead-based Overlay alloy, 0.1 to 5% by weight of silver and 2 to 12% of tin are contained, or Furthermore, the overlay alloy for sliding bearings of the present invention containing 0.1 to 5% of copper and the balance being substantially lead has a high wear resistance and a high fatigue resistance under high oil temperature conditions. It is significantly improved compared to the conventional product without addition.
【００２７】従って、本発明のオ−バレイ合金を、銅系
或いはアルミニウム系等の軸受合金の上にオ−バレイし
たすべり軸受は、出力増大した内燃機関の高温条件下に
おいても摺動要素としてすぐれた特性を示し、非常に有
用である。Therefore, a sliding bearing obtained by overlaying the overlay alloy of the present invention on a bearing alloy such as a copper alloy or an aluminum alloy is excellent as a sliding element even under high temperature conditions of an internal combustion engine with increased output. It has excellent characteristics and is very useful.
【図１】本発明のすべり軸受用オ−バレイ合金を有する
すべり軸受の断面構成図である。FIG. 1 is a cross-sectional configuration diagram of a slide bearing having an overlay alloy for slide bearings of the present invention.
１ 裏金 ２ 銅又はアルミニウム軸受合金層 ３ ニッケル又はニッケル合金薄メッキ層 ４ オ−バレイ合金層 1 Back metal 2 Copper or aluminum bearing alloy layer 3 Nickel or nickel alloy thin plating layer 4 Overlay alloy layer
Claims (2)
２％を含有して、残余が実質的に鉛からなることを特徴
とするすべり軸受用オ−バレイ合金。1. Silver: 0.1-5% by weight, tin: 2-1
An overlay alloy for plain bearings, containing 2% and the balance consisting essentially of lead.
２％、銅：０．１〜５％を含有して、残余が実質的に鉛
からなることを特徴とするすべり軸受用オ−バレイ合
金。2. Silver: 0.1-5% by weight, tin: 2-1 by weight.
2%, copper: 0.1 to 5%, and the balance being essentially lead, which is an overlay alloy for sliding bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32324293A JPH07151148A (en) | 1993-11-29 | 1993-11-29 | Overlay alloy for slide bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32324293A JPH07151148A (en) | 1993-11-29 | 1993-11-29 | Overlay alloy for slide bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07151148A true JPH07151148A (en) | 1995-06-13 |
Family
ID=18152594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32324293A Pending JPH07151148A (en) | 1993-11-29 | 1993-11-29 | Overlay alloy for slide bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07151148A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009138272A (en) * | 2008-12-06 | 2009-06-25 | Taiho Kogyo Co Ltd | Slide bearing superior in seizure resistance |
| WO2010024170A1 (en) | 2008-08-29 | 2010-03-04 | 新日本石油株式会社 | Lubricant oil composition in contact with a silver-containing material |
| CN103526073A (en) * | 2013-10-24 | 2014-01-22 | 伊川县宇光新能源照明开发有限公司 | Lead-tin-silver alloy for preparing lead-acid cell and preparation process thereof |
-
1993
- 1993-11-29 JP JP32324293A patent/JPH07151148A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010024170A1 (en) | 2008-08-29 | 2010-03-04 | 新日本石油株式会社 | Lubricant oil composition in contact with a silver-containing material |
| US8802604B2 (en) | 2008-08-29 | 2014-08-12 | Jx Nippon Oil & Energy Corporation | Lubricating oil composition in contact with silver-containing material |
| JP2009138272A (en) * | 2008-12-06 | 2009-06-25 | Taiho Kogyo Co Ltd | Slide bearing superior in seizure resistance |
| CN103526073A (en) * | 2013-10-24 | 2014-01-22 | 伊川县宇光新能源照明开发有限公司 | Lead-tin-silver alloy for preparing lead-acid cell and preparation process thereof |
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