WO2012063785A1 - モータ式燃料噴射ポンプ用焼結軸受 - Google Patents
モータ式燃料噴射ポンプ用焼結軸受 Download PDFInfo
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- WO2012063785A1 WO2012063785A1 PCT/JP2011/075621 JP2011075621W WO2012063785A1 WO 2012063785 A1 WO2012063785 A1 WO 2012063785A1 JP 2011075621 W JP2011075621 W JP 2011075621W WO 2012063785 A1 WO2012063785 A1 WO 2012063785A1
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- WIPO (PCT)
- Prior art keywords
- mass
- bearing
- fuel injection
- motor
- phase
- Prior art date
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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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- 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
- C22C1/02—Making non-ferrous alloys by melting
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- 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
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- 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
- C22C1/0425—Copper-based alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
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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
- C22C9/02—Alloys based on copper with tin as the next major constituent
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/047—Bearings hydrostatic; hydrodynamic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D5/00—Pumps with circumferential or transverse flow
- F04D5/002—Regenerative pumps
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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
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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
- F16C33/128—Porous bearings, e.g. bushes of sintered alloy
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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
- F16C33/14—Special methods of manufacture; Running-in
- F16C33/145—Special methods of manufacture; Running-in of sintered porous bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/20—Manufacture essentially without removing material
- F05D2230/22—Manufacture essentially without removing material by sintering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/17—Alloys
- F05D2300/172—Copper alloys
- F05D2300/1723—Nickel-Copper alloy, e.g. Monel
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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
- F16C2202/00—Solid materials defined by their properties
- F16C2202/02—Mechanical properties
- F16C2202/10—Porosity
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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
Definitions
- the present invention relates to a sintered bearing for a motor-type fuel injection pump made of a Cu-based sintered alloy.
- an engine using liquid fuel is provided with a motor-type fuel injection pump, and the liquid fuel is injected into the combustion chamber of the engine by the motor-type fuel injection pump.
- a motor-type fuel injection pump for a gasoline engine having a structure shown in FIG. 5 is known.
- a rotating shaft fixed to both ends of a motor is supported by a bearing, an impeller is fixed to one rotating shaft, and a gasoline flow path is formed on the outer peripheral surface of the impeller and the motor.
- Gasoline is boosted by the rotation of the impeller and injected into a combustion chamber of an engine (not shown).
- gasoline engines are used in various parts of the world, but in some areas, poor gasoline containing organic acids is used as fuel.
- poor gasoline containing organic acid is used, there is a problem that the bearing of the motor type fuel injection pump is corroded by the organic acid.
- Patent Document 1 discloses a motor type fuel pump bearing made of a Cu—Ni based sintered alloy.
- Patent Document 1 has a structure in which a Sn high-concentration alloy layer containing 50% by mass or more of Sn is formed, thereby improving corrosion resistance and the like.
- this bearing contains 21 to 35% by mass of expensive Ni, there is a problem that it cannot be manufactured at a low cost.
- an object of the present invention is to provide a bearing for a motor-type fuel injection pump that is made of a Cu—Ni-based sintered alloy that eliminates the above-described problems and is inexpensive and has excellent corrosion resistance and wear resistance. .
- the sintered bearing for a motor type fuel injection pump of the present invention is 10% to 20% Ni, 5 to 13% Sn, 0.1 to 0.8% P, and 1 to 6% by mass.
- Ni—Sn—Cu—P phase contains 30% to 49% Ni, 10% to 30% Cu, and 0.5% to 1.5% P in mass%, with the balance being It consists of Sn and inevitable impurities.
- the sintered bearing for a motor type fuel injection pump of the present invention is 10% to 20% Ni, 5 to 13% Sn, 0.1 to 0.8% P, and 1 to 6% by mass.
- Ni—Sn—Cu—P phase containing Cu and inevitable impurities, and containing 30% or more of Sn by mass% at the grain boundary, and 8 to 18% By having the porosity, it can be produced at low cost, and exhibits excellent corrosion resistance and wear resistance even in poor gasoline containing organic acids.
- the Ni—Sn—Cu—P phase contains 30% to 49% Ni, 10% to 30% Cu, and 0.5% to 1.5% P in mass%, with the balance being By being made of Sn and inevitable impurities, the corrosion resistance and the wear resistance are further improved.
- the sintered bearing for a motor type fuel injection pump of the present invention is 10% to 20% Ni, 5 to 13% Sn, 0.1 to 0.8% P, and 1 to 6% by mass.
- Ni—Sn—Cu—P phase containing Cu and inevitable impurities, and containing 30% or more of Sn by mass% at the grain boundary, and 8 to 18% Has porosity. And with this composition, etc., it can be manufactured at low cost, and exhibits excellent corrosion resistance and wear resistance even in poor gasoline containing organic acids. Further, the Ni—Sn—Cu—P phase contains 30 to 49% Ni, 10 to 30% Cu and 0.5 to 1.5 P in mass%, with the balance being Sn and When it consists of inevitable impurities, it will be further excellent in corrosion resistance and wear resistance.
- Ni 10-20% by mass Ni forms a Ni—Sn—Cu—P phase at the grain boundary together with Sn, Cu, and P by sintering, and imparts excellent corrosion resistance to the bearing. If the Ni content is less than 10%, the grain boundary phase is not sufficiently formed, and desired corrosion resistance cannot be obtained. On the other hand, even if the Ni content exceeds 20%, the effect of improving the corrosion resistance is small and the raw material cost is increased, which is not preferable.
- P 0.1 to 0.8% by mass% P improves the sinterability of the green compact and improves the strength of the substrate. If the P content is less than 0.1%, the effect of improving the strength of the substrate is small. On the other hand, if the P content exceeds 0.8%, the dimensional change during sintering becomes large and the dimensional accuracy is lowered, which is not preferable.
- Sn 5 to 13% by mass Sn forms a Ni—Sn—Cu—P phase at the grain boundary together with Ni, Sn, and P by sintering, and imparts excellent corrosion resistance to the bearing. If the Sn content is less than 5%, the grain boundary phase is not sufficiently formed, and desired corrosion resistance cannot be obtained. On the other hand, if the Sn content exceeds 13%, the dimensional change during sintering becomes large and the dimensional accuracy is lowered, which is not preferable.
- C 1 to 6% by mass
- C is derived from graphite.
- C mainly exists as free graphite in pores dispersed in the substrate, imparts excellent lubricity to the bearing, and improves wear resistance. If the C content is less than 1%, the desired effect cannot be obtained. On the other hand, even if the C content exceeds 6%, the effect of improving the wear resistance is small, and the strength of the bearing is lowered.
- Porosity 8-18%
- the pores are dispersed in the base material, and it has an effect of reducing the strong friction received by the bearing under the high-pressure and high-speed flow of the liquid fuel and suppressing the wear of the bearing. If the porosity is less than 8%, the effect is not sufficient. On the other hand, when the porosity exceeds 18%, the strength is remarkably lowered, which is not preferable.
- Ni-Sn-Cu-P phase containing 30% or more Sn by mass% Ni-Sn-Cu-P containing 30% or more Sn by mass formed at the grain boundary of the substrate
- the phase imparts excellent corrosion resistance in poor gasoline containing organic acids.
- Ni—Sn—Cu—P phase containing 30% or more of Sn by mass% at the grain boundary it is necessary to appropriately set the Ni and Sn contents and the sintering temperature conditions.
- Cu-Ni-Sn-P based composition with a Ni content of 10% or more and a Sn content of 5% or more.
- the sintering temperature By setting the sintering temperature to 840 ° C to 940 ° C, it is efficiently 30% or more in mass%.
- Ni—Sn—Cu—P phase containing Sn can be formed at the grain boundary.
- the Ni—Sn—Cu—P phase formed under the above conditions is 30% to 40% Sn, 30% to 49% Ni, 10% to 30% Cu, 0.5% to 1% by mass. And 5% P.
- the bearing of the present invention having the dimensions of outer diameter: 10 mm ⁇ inner diameter: 5 mm ⁇ height: 5 mm and having the composition shown in Table 1 (hereinafter referred to as the present invention example), and Ni content as a comparison. Comparative bearings of less than 10% (hereinafter referred to as comparative examples) were manufactured.
- pores were dispersed at a rate of 8 to 18%, and free graphite was also dispersed.
- EPMA electron beam microanalyzer
- Sn-rich Ni containing 30% by mass or more of Sn at the grain boundary.
- a —Sn—Cu—P phase was formed.
- the Sn rich phase containing 30% by mass or more of Sn was not formed at the grain boundary of the comparative example.
- the bearing was incorporated in a fuel pump having an outer dimension of length: 110 mm ⁇ diameter: 40 mm, and this fuel pump was installed in a gasoline tank.
- An actual machine experiment was performed under the conditions of an impeller rotation speed of 5,000 to 15,000 rpm, a gasoline flow rate of 50 to 250 liters / hour, a pressure applied to the bearing from high-speed rotation: a maximum of 500 kPa, and a test time of 500 hours. The maximum wear depth on the bearing surface after the test was measured. The results are shown in Table 1.
- the maximum wear depth of the bearing in the example of the present invention was 4.8 ⁇ m or less, and it was confirmed that the wear resistance was high.
- the maximum wear depth of the bearing in the comparative example was 21.0 ⁇ m, and the wear resistance was significantly lower than that of the present invention example.
- a carboxylic acid represented by RCOOH (R is a hydrogen atom or a hydrocarbon group) was added to gasoline to produce an organic acid test solution assuming a pseudo-poor gasoline.
- RCOOH R is a hydrogen atom or a hydrocarbon group
- the mass change of the bearing in the example of the present invention was 0.37% or less, and it was confirmed that the corrosion resistance was high.
- the change in mass of the bearing in the comparative example was 2.46%, which was significantly lower in corrosion resistance than the example of the present invention.
- the alloy of Invention Example 7 has a Ni—Sn—Cu—P alloy phase with an Sn concentration of 30% or more.
- Example 2 ⁇ Three types of bearings with different compositions were manufactured in the same manner as in Example 1. And about the cross section of each bearing, it analyzed about distribution of Sn, Ni, P, and Cu using the electron beam microanalyzer (EPMA). Analysis conditions were set at an acceleration voltage of 15 kV. The results are shown in FIGS. In the figure, “SEI” indicates a secondary electron image, and “COMPO” indicates a reflected electron composition image.
- FIG. 2 is an electron micrograph when Cu: balance, Sn: 9%, P: 0.4%, C: 5% and Ni: 16%.
- FIG. 3 shows Sn, P, C is an electron micrograph when Ni is 12.5% as in FIG. 2 and 3, there may be a metal structure in which Ni—Sn—Cu—P alloy phases having a higher content of Sn, Ni, P and a lower content of Cu than the base are dispersed. It was clearly confirmed.
- FIG. 4 is an electron micrograph when Sn, P, and C are the same as FIG. 2 and Ni is 8.2% (out of the scope of the present invention). In FIG. 4, the Sn rich phase was not confirmed.
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Sliding-Contact Bearings (AREA)
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Abstract
Description
Niは、焼結によりSn、Cu、Pとともに粒界にNi-Sn-Cu-P相を形成して、軸受に優れた耐食性を付与する。Ni含有量が10%未満では粒界相が十分形成されず、所望の耐食性が得られない。一方、Ni含有量が20%を超えても耐食性向上の効果が少なく、原料コストが高くなるため好ましくない。
Pは、圧粉体の焼結性を向上させ、素地の強度を向上させる。P含有量が0.1%未満では素地の強度向上に効果が少ない。一方、P含有量が0.8%を越えると焼結時の寸法変化が大きくなり、寸法精度が低下するため好ましくない。
Snは、焼結によりNi、Sn、Pとともに粒界にNi-Sn-Cu-P相を形成して、軸受に優れた耐食性を付与する。Sn含有量が5%未満では粒界相が十分形成されず、所望の耐食性が得られない。一方、Sn含有量が13%を超えると焼結時の寸法変化が大きくなり、寸法精度が低下するため好ましくない。
Cは黒鉛に由来するものである。Cは、主に、素地中に分散している気孔内に遊離黒鉛として存在し、軸受に優れた潤滑性を付与し、耐摩耗性を向上させる。C含有量が1%未満では所望の効果が得られない。一方、C含有量が6%を越えても耐摩耗性向上の効果が少なく、軸受の強度が低下するため好ましくない。
気孔は素地に分散し、液体燃料の高圧高速流通下で軸受が受ける強い摩擦を緩和し、軸受けの摩耗を抑制する効果がある。気孔率が8%未満ではその効果が十分でない。一方、気孔率が18%を超えると強度が著しく低下するので好ましくない。
素地の粒界に形成された、質量%で30%以上のSnを含有するNi-Sn-Cu-P相は、有機酸を含む粗悪ガソリン中における優れた耐食性を付与する。
原料粉末として、いずれも粒径100メッシュの、Cu-30質量%Ni粉、Cu-25質量%Ni粉、Cu-15質量%Ni粉、Cu-8質量%P粉、Sn粉、黒鉛粉末、Cu粉末を用意した。これらの原料粉末を表1に示す組成になるように配合し、ステアリン酸を0.5質量%添加してV型混合機にて20分混合した後、所定の圧力でプレス成形して圧粉体を製作した。この圧粉体を、天然ガスと空気を混合し、加熱した触媒に通すことで分解変成させたエンドサーミックガス(吸熱型ガス)雰囲気中で、840~940℃範囲内の所定の温度で焼結し、続いてサイジングを行った。以上の工程により、外径:10mm×内径:5mm×高さ:5mmの寸法を有し、表1に示す組成成分の本発明軸受(以下、本発明例という)、及び比較としてNi含有量が10%未満の比較軸受(以下、比較例という)を製作した。
上記の本発明例と比較例の軸受について、ガソリンが狭い空間を高速で流通し、これを生起せしめるモータの高速回転によって軸受が高圧を受け、かつ速い流速のガソリンに曝される条件で耐摩耗試験を行った。
上記の本発明例と比較例の軸受について耐食試験を行った。
本発明例7の合金について、電子線マイクロアナライザー(EPMA)を用いて、Ni-Sn-Cu-P合金相のCu、Ni、Sn、Pを分析した。分析条件は、加速電圧15kV、ビーム径をφ1μmに設定し、一例として図1の電子顕微鏡写真(COMPO像)に示すように、Ni-Sn-Cu-P合金相の中央部分を分析した。そして、異なるNi-Sn-Cu-P合金相を5箇所測定して平均値を算出した。その結果を表2に示す。
Claims (2)
- 質量%で、10~20%のNiと、5~13%のSnと、0.1~0.8%のPと、1~6%のCとを含有し、残部がCu及び不可避不純物からなるとともに、粒界に質量%で30%以上のSnを含有するNi-Sn-Cu-P相が形成され、かつ、8~18%の気孔率を有することを特徴とするモータ式燃料噴射ポンプ用焼結軸受。
- 前記Ni-Sn-Cu-P相は、質量%で、30~49%のNiと、10~30%のCuと、0.5~1.5%のPとを含有し、残部がSn及び不可避不純物からなることを特徴とする請求項1記載のモータ式燃料噴射ポンプ用焼結軸受。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112013009530-0A BR112013009530B1 (pt) | 2010-11-10 | 2011-11-07 | Mancal sinterizado para bombas de injeção de combustível movidas a motor |
US13/876,084 US8999232B2 (en) | 2010-11-10 | 2011-11-07 | Sintered bearing for motor-powered fuel injection pumps |
JP2012542913A JP5492308B2 (ja) | 2010-11-10 | 2011-11-07 | モータ式燃料噴射ポンプ用焼結軸受 |
CN201180054205.2A CN103201398B (zh) | 2010-11-10 | 2011-11-07 | 马达式燃料喷射泵用烧结轴承 |
KR1020137010354A KR101849809B1 (ko) | 2010-11-10 | 2011-11-07 | 모터식 연료 분사 펌프용 소결 베어링 |
EP11840331.0A EP2639322B1 (en) | 2010-11-10 | 2011-11-07 | Sintered bearing for motor-powered fuel injection pumps |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2010251547 | 2010-11-10 | ||
JP2010-251547 | 2010-11-10 |
Publications (1)
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WO2012063785A1 true WO2012063785A1 (ja) | 2012-05-18 |
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PCT/JP2011/075621 WO2012063785A1 (ja) | 2010-11-10 | 2011-11-07 | モータ式燃料噴射ポンプ用焼結軸受 |
Country Status (8)
Country | Link |
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US (1) | US8999232B2 (ja) |
EP (1) | EP2639322B1 (ja) |
JP (1) | JP5492308B2 (ja) |
KR (1) | KR101849809B1 (ja) |
CN (1) | CN103201398B (ja) |
BR (1) | BR112013009530B1 (ja) |
MY (1) | MY161282A (ja) |
WO (1) | WO2012063785A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140376845A1 (en) * | 2012-05-15 | 2014-12-25 | Diamet Corporation | Sintered bearing for motor-type fuel pump with superior corrosion resistance, wear resistance and conformability |
US9074629B2 (en) | 2012-11-16 | 2015-07-07 | Daido Metal Company Ltd. | Multi-layer slide member |
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 |
WO2019004384A1 (ja) * | 2017-06-29 | 2019-01-03 | 株式会社ダイヤメット | モータ式燃料ポンプ用焼結軸受及びその製造方法 |
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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JP6609852B2 (ja) * | 2016-03-04 | 2019-11-27 | 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 |
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- 2011-11-07 CN CN201180054205.2A patent/CN103201398B/zh active Active
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- 2011-11-07 JP JP2012542913A patent/JP5492308B2/ja active Active
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140376845A1 (en) * | 2012-05-15 | 2014-12-25 | Diamet Corporation | Sintered bearing for motor-type fuel pump with superior corrosion resistance, wear resistance and conformability |
US10041536B2 (en) * | 2012-05-15 | 2018-08-07 | Diamet Corporation | Sintered bearing for motor-type fuel pump with superior corrosion resistance, wear resistance and conformability |
US9074629B2 (en) | 2012-11-16 | 2015-07-07 | Daido Metal Company Ltd. | Multi-layer slide member |
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 |
US10941465B2 (en) | 2016-03-04 | 2021-03-09 | Diamet Corporation | Cu-based sintered sliding material, and production method therefor |
WO2019004384A1 (ja) * | 2017-06-29 | 2019-01-03 | 株式会社ダイヤメット | モータ式燃料ポンプ用焼結軸受及びその製造方法 |
US11441608B2 (en) | 2017-06-29 | 2022-09-13 | Diamet Corporation | Sintered bearing for motor-type fuel pump and production method therefor |
Also Published As
Publication number | Publication date |
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EP2639322B1 (en) | 2015-08-26 |
EP2639322A1 (en) | 2013-09-18 |
EP2639322A4 (en) | 2014-10-08 |
US8999232B2 (en) | 2015-04-07 |
MY161282A (en) | 2017-04-14 |
KR101849809B1 (ko) | 2018-04-17 |
BR112013009530A2 (pt) | 2016-07-12 |
JPWO2012063785A1 (ja) | 2014-05-12 |
US20130189150A1 (en) | 2013-07-25 |
CN103201398A (zh) | 2013-07-10 |
CN103201398B (zh) | 2016-01-20 |
JP5492308B2 (ja) | 2014-05-14 |
KR20140001876A (ko) | 2014-01-07 |
BR112013009530B1 (pt) | 2019-04-24 |
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