WO2006022337A1 - 高強度を示しかつ高温環境下ですぐれた耐摩耗性を示すEGR式内燃機関の再循環排ガス流量制御弁などの焼結Cu合金製軸受 - Google Patents
高強度を示しかつ高温環境下ですぐれた耐摩耗性を示すEGR式内燃機関の再循環排ガス流量制御弁などの焼結Cu合金製軸受 Download PDFInfo
- Publication number
- WO2006022337A1 WO2006022337A1 PCT/JP2005/015448 JP2005015448W WO2006022337A1 WO 2006022337 A1 WO2006022337 A1 WO 2006022337A1 JP 2005015448 W JP2005015448 W JP 2005015448W WO 2006022337 A1 WO2006022337 A1 WO 2006022337A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sintered
- exhaust gas
- gas flow
- internal combustion
- bearing
- Prior art date
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0084—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ carbon or graphite as the main non-metallic constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/02—Alloys based on copper with tin as the next major constituent
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- 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
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- 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
- F16C2204/10—Alloys based on copper
-
- 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
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/20—Application independent of particular apparatuses related to type of movement
- F16C2300/28—Reciprocating movement
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S384/00—Bearings
- Y10S384/90—Cooling or heating
- Y10S384/912—Metallic
Definitions
- Sintered Cu alloy bearings such as recirculation exhaust gas flow control valve for EGR type internal combustion engine showing high strength and excellent wear resistance in high temperature environment
- the present invention has high strength and has substantially the same thermal expansion coefficient as that of an austenitic stainless steel reciprocating shaft. Therefore, even when exposed to a high temperature environment, the reciprocating shaft Since excellent sliding characteristics are maintained in the meantime, it relates to sintered Cu alloy bearings such as recirculation exhaust gas flow control valves for EGR internal combustion engines that exhibit excellent wear resistance.
- stainless steel shaft! /, U As a bearing for an austenitic stainless steel reciprocating shaft (hereinafter referred to as stainless steel shaft! /, U) that operates the recirculation exhaust gas flow control valve provided in the exhaust gas extraction pipe of EGR, for example, Ni: 10 -30%, Sn: 5-12%, C: 3-10%, the remainder consisting of Cu and inevitable impurities, and a structure in which free graphite is dispersed and distributed on the base of the Cu-Ni-Sn solid solution
- the one made of sintered Cu alloy with a metal is known (see, for example, Patent Document 1).
- Patent Document 1 JP 2004-68074 A
- the recirculation exhaust gas flow control valve is arranged in the vicinity of the combustion chamber of the engine.
- the current situation is being exposed to high temperature environments as high as 450 ° C.
- the reciprocating shaft and bearing of the recirculation exhaust gas flow control valve are normally designed based on the sliding characteristics in a room temperature environment, there is a large difference in thermal expansion between them when exposed to a high temperature environment. As a result, a phenomenon may occur in which the sliding characteristics are significantly impaired, such as an increase in clearance between both sliding surfaces and an increase in sliding surface resistance.
- the present invention has been made on the basis of the above research results.
- a stainless shaft bearing for operating a recirculation exhaust gas flow control valve of an EGR type internal combustion engine is provided.
- the austenitic stainless steel that constitutes the stainless steel shaft is the one defined as “austenite” in the “stainless steel bar” of JIS G4303 (1979 edition).
- the Sn component forms a solid solution of Cu and Ni and improves the strength of the bearing and contributes to the improvement of the wear resistance of the bearing, but it is desirable if its content is less than 5%. However, if the content exceeds 12%, the aggressiveness against the stainless steel shaft, which is the counterpart material, increases rapidly, and the wear of the stainless steel shaft is accelerated. Therefore, the content was determined to be 5-12%.
- the C component exists as free graphite whose main component is distributed and distributed on the substrate, and improves the lubricity of the bearing, thereby contributing to improved wear resistance of the bearing and stainless steel shaft. If the content is less than 10%, the dispersion distribution ratio of free graphite is insufficient and the desired excellent lubricity cannot be ensured. On the other hand, if the content exceeds 10%, the strength of the bearing decreases rapidly, resulting in wear. The content was determined to be 3 to 10 o / o.
- the P component improves the sinterability during sintering, thereby improving the strength of the substrate, that is, the strength of the bearing, but if the P content is less than 0.1%, sufficient sinterability is exhibited. However, if the content exceeds 0.9%, the strength of the grain boundary will drop sharply, so the strength of the sintered alloy will decrease. This is not preferable. Therefore, the content of the P component is set to 0.1 to 0.9%.
- the bearing of the present invention has higher strength, and even if it is exposed to a high temperature environment, excellent lubrication characteristics are maintained with the counterpart stainless steel shaft. It can cope with high output and low fuel consumption as well as light weight and compactness.
- the present invention sintered Cu alloy bearing with the dimensions of outer diameter: 20mm X inner diameter: 5mm X length: 20mm 1 to 15, comparative sintered Cu alloy bearings (hereinafter referred to as comparative bearings) 1 to 8 and conventional sintered Cu alloy bearings (hereinafter referred to as conventional bearings) 1 were manufactured.
- Comparative bearing 1-8 are both intended content of any of the alloy components are composed of a sintered Cu alloy outside the scope mosquito ⁇ et of the present invention, 19 to 21 X 10- 6 The coefficient of thermal expansion of ZK is shown.
- the bearings 1 to 15 of the present invention have higher strength than the conventional bearing 1, and all have substantially the same thermal expansion coefficient as the stainless steel shaft. Even when exposed to a high temperature environment of 435 ° C, it retains excellent lubrication characteristics with the stainless steel shaft, indicating that it exhibits excellent wear resistance with small opponent attack. Karu. However, as seen in comparative bearings 1-8, in the case of a bearing made of sintered Cu alloy whose content is out of the range of the present invention, the strength is reduced or compared with stainless steel shaft. Therefore, the clearance of the sliding surface is increased, which promotes the occurrence of local wear on the sliding surface, and the wear of the local wear portion rapidly proceeds.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sliding-Contact Bearings (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/574,192 US8092091B2 (en) | 2004-08-27 | 2005-08-25 | Bearing made of sintered copper alloy for a recirculation exhaust gas flow rate control valve |
DE602005014882T DE602005014882D1 (de) | 2004-08-27 | 2005-08-25 | Lager aus cu-sinterlegierung eines rezirkulationsabgasströmungsraten-regelventils oder dergleichen, eines egr-verbrennungsmotors mit hoher festigkeit und hervorragender abriebfestigkeit in hochtemperaturumgebung |
EP05780974A EP1808503B1 (en) | 2004-08-27 | 2005-08-25 | Sintered cu alloy bearing of recirculation exhaust gas flow rate control valve, or the like, of egr internal combustion engine having high strength and exhibiting excellent abrasion resistance in high-temperature environment |
KR1020087030873A KR101053807B1 (ko) | 2004-08-27 | 2005-08-25 | 고강도를 나타내고 또한 고온 환경 하에서 우수한 내마모성을 나타내는 egr 식 내연 기관의 재순환 배기 가스 유량 제어 밸브 등의 소결 cu 합금제 베어링 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004247877A JP4507766B2 (ja) | 2004-08-27 | 2004-08-27 | 高強度を示しかつ高温環境下ですぐれた耐摩耗性を示すEGR式内燃機関の再循環排ガス流量制御弁用焼結Cu合金製軸受 |
JP2004-247877 | 2004-08-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006022337A1 true WO2006022337A1 (ja) | 2006-03-02 |
Family
ID=35967544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/015448 WO2006022337A1 (ja) | 2004-08-27 | 2005-08-25 | 高強度を示しかつ高温環境下ですぐれた耐摩耗性を示すEGR式内燃機関の再循環排ガス流量制御弁などの焼結Cu合金製軸受 |
Country Status (7)
Country | Link |
---|---|
US (1) | US8092091B2 (ja) |
EP (1) | EP1808503B1 (ja) |
JP (1) | JP4507766B2 (ja) |
KR (2) | KR101053807B1 (ja) |
CN (2) | CN101018878A (ja) |
DE (1) | DE602005014882D1 (ja) |
WO (1) | WO2006022337A1 (ja) |
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WO2013129226A1 (ja) * | 2012-02-29 | 2013-09-06 | 株式会社ダイヤメット | 耐摩耗性に優れた焼結合金 |
WO2016035880A1 (ja) * | 2014-09-04 | 2016-03-10 | 株式会社ダイヤメット | Cu基焼結軸受及びCu基焼結軸受の製造方法 |
WO2017150658A1 (ja) * | 2016-03-04 | 2017-09-08 | 株式会社ダイヤメット | 耐食性、耐熱性、耐摩耗性に優れた焼結摺動材及びその製造方法 |
US10532406B2 (en) | 2014-09-11 | 2020-01-14 | Diamet Corporation | Sintered sliding member having exceptional corrosion resistance, heat resistance, and wear resistance; and method for producing said member |
US10941465B2 (en) | 2016-03-04 | 2021-03-09 | Diamet Corporation | Cu-based sintered sliding material, and production method therefor |
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JP2008007794A (ja) * | 2006-06-27 | 2008-01-17 | Mitsubishi Materials Pmg Corp | 電子制御スロットル用Cu−Ni−Sn系銅基焼結合金製軸受 |
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JP2021519860A (ja) * | 2018-03-27 | 2021-08-12 | マテリオン コーポレイション | 向上した熱伝導性及び耐摩耗性を有する銅合金組成物 |
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JP7021312B2 (ja) * | 2020-09-02 | 2022-02-16 | Ntn株式会社 | 焼結軸受 |
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- 2005-08-25 CN CNA2005800275126A patent/CN101018878A/zh active Pending
- 2005-08-25 KR KR1020087030873A patent/KR101053807B1/ko active IP Right Grant
- 2005-08-25 KR KR1020077006195A patent/KR20070044063A/ko active Search and Examination
- 2005-08-25 DE DE602005014882T patent/DE602005014882D1/de active Active
- 2005-08-25 WO PCT/JP2005/015448 patent/WO2006022337A1/ja active Application Filing
- 2005-08-25 CN CN201310616125.2A patent/CN103952586B/zh active Active
- 2005-08-25 EP EP05780974A patent/EP1808503B1/en active Active
- 2005-08-25 US US11/574,192 patent/US8092091B2/en active Active
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102304642A (zh) * | 2011-08-26 | 2012-01-04 | 河南科技大学 | 一种铸造耐磨锡青铜合金及其制备方法 |
WO2013129226A1 (ja) * | 2012-02-29 | 2013-09-06 | 株式会社ダイヤメット | 耐摩耗性に優れた焼結合金 |
US9663844B2 (en) | 2012-02-29 | 2017-05-30 | Diamet Corporation | Sintered alloy superior in wear resistance |
WO2016035880A1 (ja) * | 2014-09-04 | 2016-03-10 | 株式会社ダイヤメット | Cu基焼結軸受及びCu基焼結軸受の製造方法 |
JP2016053200A (ja) * | 2014-09-04 | 2016-04-14 | 株式会社ダイヤメット | Cu基焼結軸受及びCu基焼結軸受の製造方法 |
US10745780B2 (en) | 2014-09-04 | 2020-08-18 | Diamet Corporation | Cu-based sintered bearing and production method for Cu-based sintered bearing |
US10532406B2 (en) | 2014-09-11 | 2020-01-14 | Diamet Corporation | Sintered sliding member having exceptional corrosion resistance, heat resistance, and wear resistance; and method for producing said member |
WO2017150658A1 (ja) * | 2016-03-04 | 2017-09-08 | 株式会社ダイヤメット | 耐食性、耐熱性、耐摩耗性に優れた焼結摺動材及びその製造方法 |
US10941465B2 (en) | 2016-03-04 | 2021-03-09 | Diamet Corporation | Cu-based sintered sliding material, and production method therefor |
Also Published As
Publication number | Publication date |
---|---|
EP1808503A4 (en) | 2008-10-08 |
KR20090005248A (ko) | 2009-01-12 |
CN103952586A (zh) | 2014-07-30 |
CN103952586B (zh) | 2016-03-23 |
KR20070044063A (ko) | 2007-04-26 |
EP1808503B1 (en) | 2009-06-10 |
DE602005014882D1 (de) | 2009-07-23 |
JP2006063398A (ja) | 2006-03-09 |
EP1808503A1 (en) | 2007-07-18 |
JP4507766B2 (ja) | 2010-07-21 |
CN101018878A (zh) | 2007-08-15 |
KR101053807B1 (ko) | 2011-08-03 |
US20070258668A1 (en) | 2007-11-08 |
US8092091B2 (en) | 2012-01-10 |
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