JPH0140907B2 - - Google Patents
Info
- Publication number
- JPH0140907B2 JPH0140907B2 JP57072268A JP7226882A JPH0140907B2 JP H0140907 B2 JPH0140907 B2 JP H0140907B2 JP 57072268 A JP57072268 A JP 57072268A JP 7226882 A JP7226882 A JP 7226882A JP H0140907 B2 JPH0140907 B2 JP H0140907B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- content
- powder
- impregnated
- 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.)
- Expired
Links
- 229910045601 alloy Inorganic materials 0.000 claims description 18
- 239000000956 alloy Substances 0.000 claims description 18
- 229910052725 zinc Inorganic materials 0.000 claims description 7
- 229910052698 phosphorus Inorganic materials 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910052745 lead Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 description 12
- 239000010949 copper Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 239000011701 zinc Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 229910052718 tin Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910017518 Cu Zn Inorganic materials 0.000 description 1
- 229910017755 Cu-Sn Inorganic materials 0.000 description 1
- 229910017752 Cu-Zn Inorganic materials 0.000 description 1
- 229910017888 Cu—P Inorganic materials 0.000 description 1
- 229910017927 Cu—Sn Inorganic materials 0.000 description 1
- 229910017943 Cu—Zn Inorganic materials 0.000 description 1
- 230000016571 aggressive behavior Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910001567 cementite Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 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
- 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
-
- 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
- F16C2204/60—Ferrous alloys, e.g. steel alloys
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
- Powder Metallurgy (AREA)
Description
この発明は、なじみ性、潤滑性、および耐摩耗
性にすぐれ、かつ相手攻撃性も低く、特に高速回
転および高荷重条件下での使用に際しても発熱の
きわめて小さいFe基焼結合金製含油軸受に関す
るものである。
従来、例えば自動車や二輪車のスターターモー
タや、一般の駆動モータなどの軸受のうち、その
使用条件が高速回転および高荷重となる軸受に
は、なじみ性および潤滑性にすぐれ、かつ相手攻
撃性も小さいCu基焼結合金製含油軸受が使用さ
れている。
一方、これらCu基焼結合金製含油軸受は、主
要原料粉末として高価なCu粉末を使用するめに
コストの高いものとなるばかりでなく、主成分が
Cuであるために比較的耐摩耗性の低いものとな
つている。
そこで、上記のCu基焼結合金製含油軸受に代
つてコストが安く、かつ耐摩耗性のあるFe基焼
結合金製含油軸受を使用する試みもなされたが、
これらFe基焼結合金製含油軸受は、なじみ性が
悪いばかりでなく、使用中の発熱も大きいので、
軸受中に含浸された油が著しく消耗するようにな
り、この結果かじりやロツク現象が発生し、かえ
つてその使用が短かくなるものであり、さらに相
手材たる軸に対する攻撃性（相手攻撃性）も大き
いものであり、したがつて高速回転および高荷重
条件下での使用はほとんど不可能であるのが現状
である。
とこで、本発明者等は、上述のような観点か
ら、Cu基焼結合金製含油軸受のもつすぐれたな
じみ性および潤滑性、さらに著しく低い相手攻撃
性を有し、かつ耐摩耗性にもすぐれた含油軸受を
コストの比較的安価なFe基焼結合金にて得べく
研究を行なつた結果、含油軸受を、Cu：15〜40
％、Pb：５〜20％、Ｃ：0.1〜5.0％を含有し、さ
らにSn：0.1〜5.0％、Zn：0.1〜3.0％、および
Ｐ：0.1〜1.0％のうちの１種または２種以上を含
有し、残りがFeと不可避不純物からなる組成
（以上重量％）、並びにCu合金，Pb、および遊離
黒鉛が素地中に分散した組織を有し、かつ含油率
が３〜35容量％のFe基焼結合金で構成すると、
このFe基焼結合金製含油軸受は、特に高速回転
および高荷重条件下での使用に際して、発熱がき
わめて小さく、かつ相手攻撃性も著しく低い状態
で、すぐれたなじみ性、潤滑性、および耐摩耗性
を示すという知見を得たのである。
この発明は、上記知見にもとづいてなされたも
のであつて、以下に成分組成範囲および含油率を
上記の通りに限定した理由を説明する。
(a) Cu
Cu成分には、その一部が素地に固溶して、そ
の強度を向上させ、一方残りがSn，Zn、および
Ｐのうちの１種または２種以上と合金化した形で
素地中に分散してなじみ性および耐摩耗性を向上
させる作用があるほか、焼結時におけるFeとPb
のぬれ性を促進せてPbの飛散を防止し、これを
安定化させる作用があるが、その含有量が15％未
満では前記作用に所望の効果が得られず、一方40
％を越えて含有させると、素地が硬くなりすぎて
相手攻撃性が大きくなることから、その含有量を
15〜40％と定めた。
(b) Pb
Pb成分には、焼結時に原料粉末たる黒鉛粉末
がFe粉末と反応してセメンタイトを形成するの
を抑制すると共に、素地中に均一に分散してなじ
み性および耐焼付性を向上させる作用があるが、
その含有量が５％未満では前記作用に所望の効果
が得られず、一方20％を越えて含有させると、軸
受強度がが低下するようになることから、その含
有量を５〜20％と定めた。
(c) Ｃ
Ｃ成分には、その一部が素地に固溶し、また他
の一部がパーライトを形成して素地を強化し、さ
らに残部が遊離黒鉛として素地中に均一に分散し
て潤滑性を向上させる作用があるが、その含有量
が0.1％未満では前記作用に所望の効果が得られ
ず、一方5.0％を越えて含有させると軸受強度が
低下するようになることから、その含有量を0.1
〜5.0％と定めた。
(d) Sn，Zn、およびＰ
これらの成分には、それぞれ単独粉末で配合し
た場合には焼結時にCu中に固溶し（したがつて
これら成分をCu合金粉末の形で配合してもよ
い）、素地中に均一に分散したCu−（Sn，Zn，
Ｐ）合金を形成して、なじみ性および耐摩耗性を
向上させる作用があるが、その含有量はそれぞれ
Sn：0.1％未満、Zn：0.1％未満、およびＰ：0.1
％未満では前記作用に所望の効果が得られず、一
方それぞれSn：５％、Zn：３％、およびＰ：１
％を越えて含有させてもなじみ性および耐摩耗性
により一段の向上効果が得られないことから、そ
の含有量をSn：0.1〜5.0％、Zn：0.1〜3.0％、お
よびＰ：0.1〜1.0％と定めた。
(e) 含油率
含油率が５容量％未満では所望の潤滑性を確保
することができず、一方35容量％を越えた含油率
にすると軸受強度が著しく低下するようになるこ
とから、含油率を５〜35容量％と定めた。
つぎに、この発明の含油軸受を実施例により具
体的に説明する。
実施例
原料粉末として、粒度：−100meshのアトマイ
ズ鉄粉、同−150meshの電解銅粉末、同−
150meshのりん片状黒鉛粉末、同−100meshのPb
粉末、同−100meshのSn粉末、同−100meshの
Cu−Sn合金（Sn：９％含有）粉末、同−
100meshのZn粉末、同−100meshのCu−Zn合金
（Zn：30％含有）粉末、同−100meshのCu−Ｐ合
金（Ｐ：８％含有）粉末を用意し、これら原料粉
末をそれぞれ第１表に示される配合組成に配合
し、これに潤滑剤として0.4％のステアリン酸亜
鉛を添加して混合し、この混合粉末よりそれぞれ
３〜5ton／cm2の範囲内の適宜の圧力にて圧粉体を
成形し、ついでこれらの圧粉体を、アンモニア分
解ガス中、温度：1000〜1100℃の範囲内の適宜温
度に60分間保持の条件で焼結し、最終的に真空浸
油処理を施すことによつて、実質的に配合組成と
同一の成分組成、並びにそれぞれ第１表に示され
る含油率を有し、かつ外径：16mmφ×内径：８mm
φ×高さ：10mmの寸法をもつた本発明含油軸受１
〜23および比較含油軸受１〜８をそれぞれ製造し
た。なお、比較含油軸受１
The present invention relates to an oil-impregnated bearing made of an Fe-based sintered alloy that has excellent conformability, lubricity, and wear resistance, and has low attack potential, and in particular generates very little heat even when used under high-speed rotation and high load conditions. It is something. Conventionally, bearings used in starter motors for automobiles and motorcycles, general drive motors, etc., which are used under high-speed rotation and high load conditions, have excellent conformability and lubricity, and are less likely to attack others. Oil-impregnated bearings made of Cu-based sintered alloy are used. On the other hand, oil-impregnated bearings made of Cu-based sintered alloys are not only expensive because they use expensive Cu powder as the main raw material powder, but also
Since it is Cu, it has relatively low wear resistance. Therefore, attempts have been made to use oil-impregnated bearings made of Fe-based sintered alloys, which are cheaper and more wear-resistant, in place of the oil-impregnated bearings made of Cu-based sintered alloys mentioned above.
These oil-impregnated bearings made of Fe-based sintered alloys not only have poor conformability but also generate a large amount of heat during use.
The oil impregnated in the bearing becomes significantly consumed, resulting in galling and locking phenomena, which shortens its use, and furthermore, it becomes aggressive towards the mating shaft (aggressiveness). It is also large, and therefore it is currently almost impossible to use it under high speed rotation and high load conditions. From the above-mentioned viewpoint, the inventors of the present invention have developed an oil-impregnated bearing made of a Cu-based sintered alloy that has excellent conformability and lubricity, has extremely low attack resistance, and has excellent wear resistance. As a result of conducting research to obtain excellent oil-impregnated bearings using relatively inexpensive Fe-based sintered alloys, we found that oil-impregnated bearings with Cu: 15 to 40
%, Pb: 5 to 20%, C: 0.1 to 5.0%, and one or more of Sn: 0.1 to 5.0%, Zn: 0.1 to 3.0%, and P: 0.1 to 1.0%. Fe with an oil content of 3 to 35% by volume, with a composition in which the remainder is Fe and unavoidable impurities (more than % by weight), and a structure in which Cu alloy, Pb, and free graphite are dispersed in the matrix. When composed of a base sintered alloy,
This oil-impregnated bearing made of Fe-based sintered alloy generates very little heat and has extremely low aggressiveness, especially when used under high-speed rotation and high load conditions, and has excellent conformability, lubricity, and wear resistance. They obtained the knowledge that it indicates gender. This invention was made based on the above findings, and the reason why the component composition range and oil content were limited as described above will be explained below. (a) Cu A part of the Cu component is dissolved in the base material to improve its strength, while the rest is alloyed with one or more of Sn, Zn, and P. In addition to dispersing into the base material and improving conformability and wear resistance, Fe and Pb during sintering
It has the effect of promoting the wettability of Pb, preventing scattering of Pb, and stabilizing it, but if the content is less than 15%, the desired effect cannot be obtained;
If the content exceeds %, the material will become too hard and the opponent will be more aggressive, so the content should be reduced.
It was set at 15-40%. (b) Pb The Pb component suppresses the reaction of graphite powder, which is a raw material powder, with Fe powder during sintering to form cementite, and also improves conformability and seizure resistance by uniformly dispersing it in the base material. It has the effect of causing
If the content is less than 5%, the desired effect cannot be obtained, while if the content exceeds 20%, the bearing strength will decrease, so the content should be set at 5 to 20%. Established. (c) C A part of the C component dissolves in the base material, another part forms pearlite to strengthen the base material, and the remaining part is uniformly dispersed in the base material as free graphite and provides lubrication. However, if the content is less than 0.1%, the desired effect cannot be obtained, while if the content exceeds 5.0%, the bearing strength will decrease. amount 0.1
It was set at ~5.0%. (d) Sn, Zn, and P When these components are blended as individual powders, they dissolve into Cu during sintering (therefore, even if these components are blended in the form of Cu alloy powder, Cu-(Sn, Zn,
P) It has the effect of forming an alloy and improving conformability and wear resistance, but the content of each
Sn: less than 0.1%, Zn: less than 0.1%, and P: 0.1
%, the desired effect cannot be obtained in the above action, while Sn: 5%, Zn: 3%, and P: 1
Even if the content exceeds 0.9%, no further improvement effect can be obtained due to conformability and wear resistance. %. (e) Oil content If the oil content is less than 5% by volume, the desired lubricity cannot be secured, while if the oil content exceeds 35% by volume, the bearing strength will drop significantly. was set at 5 to 35% by volume. Next, the oil-impregnated bearing of the present invention will be specifically explained using examples. Example Raw material powders include atomized iron powder with a particle size of -100mesh, electrolytic copper powder with a particle size of -150mesh, and -
150mesh flaky graphite powder, 100mesh Pb
Powder, -100mesh Sn powder, -100mesh
Cu-Sn alloy (Sn: 9% content) powder,
Prepare 100mesh Zn powder, -100mesh Cu-Zn alloy (Zn: 30% content) powder, and -100mesh Cu-P alloy (P: 8% content) powder. 0.4% zinc stearate is added as a lubricant and mixed, and the mixed powder is pressed into a green compact at an appropriate pressure within the range of 3 to 5 tons/ cm2 . These compacts are then sintered in ammonia decomposition gas at an appropriate temperature within the range of 1000 to 1100°C for 60 minutes, and finally subjected to vacuum oil immersion treatment. Accordingly, it has substantially the same component composition as the blended composition and the oil content shown in Table 1, and outer diameter: 16 mmφ x inner diameter: 8 mm
Oil-impregnated bearing 1 of the present invention with dimensions of φ x height: 10 mm
-23 and comparative oil-impregnated bearings 1-8 were manufactured, respectively. In addition, comparative oil-impregnated bearing 1
【表】【table】
【表】
〜７はいずれも構成成分のうちのいずれかの成分
含有量、並びに含油率（第１表※印を付したも
の）がこの発明の範囲から外れたものであり、ま
た比較含油軸受８は従来Cu基焼結合金製のもの
である。
ついで、この結果得られた本発明含油軸受１〜
23および比較含油軸受１〜８について、圧環強度
を測定すると共に、PV値：700Kg／cm2・ｍ／
min、周速：150ｍ／minおよび200ｍ／minの条
件（高速回転・高荷重条件）での摩耗量、摩擦係
数、および軸受温度を測定した。これらの測定結
果を第１表に合せて示した。
第１表に示される結果から、本発明含油軸受１
〜23は、いずれも従来Cu基焼結合金製含油軸受
に相当する比較含油軸受８に比して一段とすぐれ
た強度および耐摩耗性を有し、かつこれと同等の
すぐれたなじみ性および潤滑性、並びに低い相手
攻撃性を有するのに対して、比較含油軸受１〜７
に見られるように成分組成および含油率がこの発
明の範囲から外れると、上記の軸受特性のうちの
少なくともいずれかの性質が劣つたものになるこ
とが明らかである。
上述のように、この発明の含油軸受は、Fe基
焼結合金製であるので安価であり、かつすぐれた
なじみ性、潤滑性、および耐摩耗性、並びに低い
相手攻撃性を有し、しかも特に高速回転・高荷重
条件下での使用に際しても発熱がきわめて少ない
ものであるので、広い範囲での長期に亘つての安
定的使用が可能となるなどの工業上有用な特性を
有するのである。[Table] - 7 all have the content of one of the constituent components and the oil content (marked with * in Table 1) outside the scope of this invention, and comparative oil-impregnated bearings 8 is a conventional one made of Cu-based sintered alloy. Next, the oil-impregnated bearings 1 to 1 of the present invention obtained as a result
23 and comparative oil-impregnated bearings 1 to 8, the radial crushing strength was measured and the PV value: 700Kg/cm 2 m/
The wear amount, friction coefficient, and bearing temperature were measured at circumferential speeds of 150 m/min and 200 m/min (high-speed rotation and high load conditions). These measurement results are also shown in Table 1. From the results shown in Table 1, oil-impregnated bearing 1 of the present invention
-23 all have superior strength and wear resistance compared to comparative oil-impregnated bearing 8, which corresponds to conventional oil-impregnated bearings made of Cu-based sintered alloy, and have excellent conformability and lubricity equivalent to this. , as well as low opponent aggression, whereas comparative oil-impregnated bearings 1 to 7
It is clear that when the component composition and oil content are outside the scope of the present invention, at least one of the above-mentioned bearing properties becomes inferior, as shown in FIG. As mentioned above, the oil-impregnated bearing of the present invention is made of an Fe-based sintered alloy, so it is inexpensive, and has excellent conformability, lubricity, and wear resistance, as well as low aggressiveness to others. Since it generates very little heat even when used under high speed rotation and high load conditions, it has industrially useful properties such as being able to be used stably over a wide range over a long period of time.
Claims (1)
％を含有し、さらにSn：0.1〜5.0％，Zn：0.1〜
3.0％、およびＰ：0.1〜1.0％のうちの１種または
２種以上を含有し、残りがFeと不可避不純物か
らなる組成（以上重量％）、並びにCu合金、Pb、
および遊離黒鉛が素地中に分散した組織を有し、
かつ含油率：５〜35容量％を有することを特徴と
するなじみ性および潤滑性のすぐれたFe基焼結
合金製含油軸受。1 Cu: 15-40%, Pb: 5-20%, C: 0.1-5.0
%, and further contains Sn: 0.1~5.0%, Zn: 0.1~
3.0%, and P: 0.1 to 1.0%, and the remainder is Fe and unavoidable impurities (wt%), as well as Cu alloy, Pb,
and has a structure in which free graphite is dispersed in the matrix,
An oil-impregnated bearing made of an Fe-based sintered alloy having excellent conformability and lubricity, and having an oil content of 5 to 35% by volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57072268A JPS58189361A (en) | 1982-04-28 | 1982-04-28 | Oil-containing bearing made of sintered fe alloy with superior fitness and lubricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57072268A JPS58189361A (en) | 1982-04-28 | 1982-04-28 | Oil-containing bearing made of sintered fe alloy with superior fitness and lubricity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58189361A JPS58189361A (en) | 1983-11-05 |
| JPH0140907B2 true JPH0140907B2 (en) | 1989-09-01 |
Family
ID=13484363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57072268A Granted JPS58189361A (en) | 1982-04-28 | 1982-04-28 | Oil-containing bearing made of sintered fe alloy with superior fitness and lubricity |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58189361A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01275735A (en) * | 1988-04-27 | 1989-11-06 | Isamu Kikuchi | Sintered alloy material and its manufacture |
| JP2551981B2 (en) * | 1988-09-14 | 1996-11-06 | 大同メタル工業 株式会社 | Multi-layer iron copper lead alloy bearing material |
| JP2631146B2 (en) * | 1989-09-11 | 1997-07-16 | 勇 菊池 | Sintered metal body and method for producing the same |
| JPH03199348A (en) * | 1989-12-28 | 1991-08-30 | Isamu Kikuchi | Sintered alloy bearing |
| GB2333779A (en) * | 1997-08-07 | 1999-08-04 | Porite Corp | Composite metal powder for sintered bearing, and sintered oil-retaining bearing |
| JP4507766B2 (en) * | 2004-08-27 | 2010-07-21 | 株式会社ダイヤメット | Sintered Cu alloy bearing for recirculation exhaust gas flow control valve of EGR type internal combustion engine showing high strength and excellent wear resistance in high temperature environment |
| CN103071800A (en) * | 2012-11-23 | 2013-05-01 | 东睦(江门)粉末冶金有限公司 | Iron-based oil-containing bearing and manufacturing method thereof |
| JP6817094B2 (en) * | 2016-07-29 | 2021-01-20 | 株式会社ダイヤメット | Iron-copper-based sintered oil-impregnated bearing and its manufacturing method |
| CN108465808A (en) * | 2018-04-02 | 2018-08-31 | 常熟市华德粉末冶金有限公司 | A kind of preparation method of tin bronze ferrous based powder metallurgical and its oiliness bearing |
| CN111001813B (en) * | 2019-12-28 | 2022-02-18 | 合肥波林新材料股份有限公司 | High-antifriction iron-based vulcanized powder metallurgy oil-retaining bearing material and preparation method and application thereof |
-
1982
- 1982-04-28 JP JP57072268A patent/JPS58189361A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58189361A (en) | 1983-11-05 |
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