WO1999020806A1 - Copper-base sintered sliding material excellent in slipperiness and machinability - Google Patents
Copper-base sintered sliding material excellent in slipperiness and machinability Download PDFInfo
- Publication number
- WO1999020806A1 WO1999020806A1 PCT/JP1998/004685 JP9804685W WO9920806A1 WO 1999020806 A1 WO1999020806 A1 WO 1999020806A1 JP 9804685 W JP9804685 W JP 9804685W WO 9920806 A1 WO9920806 A1 WO 9920806A1
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- WO
- WIPO (PCT)
- Prior art keywords
- copper
- less
- particles
- particle size
- machinability
- Prior art date
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Classifications
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- 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
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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
- C22C1/08—Alloys with open or closed pores
-
- 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
- C22C32/0089—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 with other, not previously mentioned inorganic compounds as the main non-metallic constituent, e.g. sulfides, glass
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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
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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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- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
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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
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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
- F16C2204/12—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
- F16C2204/00—Metallic materials; Alloys
- F16C2204/10—Alloys based on copper
- F16C2204/14—Alloys based on copper with zinc as the next major constituent
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- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12007—Component of composite having metal continuous phase interengaged with nonmetal continuous phase
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12014—All metal or with adjacent metals having metal particles
- Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
- Y10T428/12049—Nonmetal component
- Y10T428/12056—Entirely inorganic
Definitions
- the present invention relates to a copper-based sintered sliding material, and more particularly, to a copper-based sintered sliding material used as a bearing component such as a piston pin bush and an automatic transmission bush.
- Japanese Patent Application Laid-Open No. Hei 8-25026 discloses that A1N has good adhesion and sliding properties with a copper-based sintered material, and that the hard particles listed in the previous section are also better than A1N. It discloses that even if added in a small amount, the properties of A 1 N are not significantly impaired, and that sufficient properties can be obtained.
- the wear resistance of the sliding material was improved by the addition of the hard particles described above. A new problem has arisen that the tool life is greatly shortened.
- an object of the present invention is to provide a hard material-added copper-based sintered sliding material that does not shorten the life of a cutting tool while maintaining excellent sliding characteristics due to hard particles. Disclosure of the invention
- a 1 N which is characterized by the above-mentioned Japanese Patent Application Laid-Open No. 8-25026, has a hardness of about Hv 1300, while the hardness of Fe 3 P is about HV 800, and is smaller than A 1 N in this publication.
- the F e 3 P were good as to have that force inventors subsequent studies wear resistance additive, when as one constant the total amount of a l N and Fe 3 P, F e 3 P amount > A 1 N content, Fe 3 P average particle size> It was found that the machinability was significantly improved if the relationship of AIN average particle size was established, and experiments were conducted on various hard materials. completed.
- the present invention provides a copper-based sintered sliding material in which high-hardness particles of HV 1100 or more and medium-hardness particles of Hv 1000 or less are dispersed in a matrix made of Cu or a Cu alloy.
- Both high hardness particles and medium hardness particles in the present invention are copper-based hard particles. When combined with a sintered alloy, its wear resistance improves. However, high hardness particles of Hvl 100 or more have a greater effect of enhancing wear resistance than medium hardness particles of HV 1000 or less, while medium hardness particles of HV 1000 or less do not deteriorate machinability. However, in order for the medium hardness particles to significantly improve machinability, it is necessary that both the average particle size and the amount added are larger than the high hardness particles. As described above, the wear resistance has a strong dependence on the hardness of the hard particles, and the machinability has a strong dependence on the hardness and the average particle diameter of the hard particles. Specified.
- high hardness particles AIN, A l 2 0 3, N i B, F e 2 B, S i C, T i C, rather little is selected from the group consisting of WC and S i 3 N 4
- the medium hardness particles are at least one selected from the group consisting of Fe 3 P, Fe 2 P, and Fe B.
- the present inventors measured the hardness of various particles for particles dispersed as coarse particles of a size measurable by Vickers hardness in a copper-based sintered material, and obtained the values shown in Tables 2 and 3 of the examples. Since these values hardly differ from those of the pure substance, the effects of the present invention can be obtained if a predetermined hardness relationship is satisfied. Therefore, in the present invention, any particles of a substance having a predetermined hardness other than the substances listed above can be used as dispersed particles of a sintered alloy.
- the medium-hardness particles T i S i 2 In addition to the above compounds, Z r S i 2, N i P, intermetallic compounds, S i, Cr, is hard metal and alloys such as Co W
- These compounds have a hardness of Hv1000 or less for improving machinability. From the viewpoint of bearing performance, it is preferable that the particle size of the medium hardness particles is relatively large.
- the addition amount of the high hardness particles is 0.01 to 15% by weight based on the whole copper-based sintered sliding material, and the addition amount of the medium hardness particles is 0.5 to 15% by weight.
- the content is preferably adjusted so that the content of the medium-hardness hard particles is larger than the amount of the high-hardness hard particles in these ranges. If the addition amount is less than the lower limit, the wear resistance of the sintered sliding material is insufficient, while if it exceeds the upper limit, the sinterability becomes poor, which is not preferable. More preferably, the addition amount of the high hardness particles is 0.1 to 5% by weight based on the whole copper-based sintered sliding material, and the addition amount of the medium hardness particles is 1 to 10% by weight.
- the average particle size of the high hardness particles is 0.5 m or more, and the average particle size of the medium hardness particles is 5 im or more. If the average particle size of the high hardness particles is less than 0.5 m, uniform dispersion of the particles in the copper alloy becomes difficult as the number of particles increases when the amount of addition is constant, resulting in wear resistance. And the copper alloy is less likely to exhibit the familiarity and adhesion properties, resulting in poor sliding characteristics. If the average particle size of the medium hardness particles is less than 5 ⁇ , the effect of improving the wear resistance by the medium hardness particles is not so large. More preferably, the average particle size of the high hardness particles is 0.8 wm or more, and the average particle size of the medium hardness particles is 8 m or more.
- the high hardness particles and the medium hardness particles satisfy the above-mentioned average particle diameter relationship, and preferably each particle diameter is not particularly limited as long as it satisfies the upper limit or the lower limit.
- some of the high-hardness particles may have a larger particle size than some of the medium-hardness particles, and the particle size of each individual particle is not particularly limited.
- the average particle size of the high hardness particles is 3 m or less, especially 2 / xm or less, and the medium hardness particles
- the average particle size of the particles is preferably 50 ⁇ or less, particularly preferably 30 m or less.
- the matrix for dispersing the hard particles is pure copper or copper alloy particles.
- the composition of the copper alloy is not particularly limited, as long as the sliding properties are higher than normally required.
- the Cu—Ag system or the Cu—Pb—Ag system can also be used in the present invention, and the amount of Ag added is preferably in the range of 0.1 to 5% (weight percentage based on the copper alloy), more preferably. 0.2 to 2%. Further, the addition amount of Pb (weight percentage based on the copper alloy) is preferably 20% or less, more preferably 1 to 10%.
- N i more than 5% and 50% or less, preferably 5 to 5; L 5%
- Sn 20% or less, preferably 3 to 15%
- P 0.5% or less, preferably 0.01 to 0.1%
- a 1 5% or less, preferably 0.5 to 3%
- B 1 1% or less, preferably 0.1 to 0.5%
- Mn 5% or less, preferably 0.5 to 3%
- Zn 30% or less, preferably 5 to 25%
- F e 10% or less, preferably 1 to 5%
- Sb 1% or less, preferably 0.1 to 0.5%
- Ni and Zn improve the corrosion resistance in degraded lubricating oil by increasing the sulfuration resistance of copper.
- Pb and Sb impart conformability as a soft component, and P, A1, Si, Mn, Fe, and Sb harden the copper matrix and increase wear resistance.
- the copper or copper alloy particles may be general atomized powder, crushed powder, electrolytic powder, etc., and these particles have a general particle size, particularly those having an average particle size of 10 to 100 ⁇ . Can be used.
- the mixed powder of the copper (alloy) powder and the hard particles is scattered to a thickness of about 1 mm to several mm, and light pressure is applied as it is or slightly uneven the surface thickness is uneven. Sinter the powder without pressure. After that, it is preferable to perform a roll reduction to reduce the thickness by about 50 to 70% and further perform a second sintering.
- the sintering is preferably performed at 700 to 900 ° C in a reducing atmosphere.
- High hardness particles (A 1 N), medium hardness particles (Fe 3 P), and copper or copper alloy powder shown in Tables 2 and 3 were sufficiently mixed by a V-type mixer. Copper powder and copper alloy powder are atomized powder with an average particle size of 40. These mixed powders were sprayed on a steel plate with a thickness of 2 mm to a thickness of 1.3 mm, and then the first sintering was performed at 890 ° C. Subsequently, rolling was performed at a thickness reduction rate of 50%. Thereafter, a second sintering was performed at 890 ° C. As the surface finish, the surface roughness was set to 2 ⁇ using a sintered diamond tool.
- Test material Plate bearing made of the above sintered material
- a flat bearing made of the above-mentioned sintered material was cut for a total of 20 km on an NC lathe using a sintered diamond cutting tool (edge R0.4 mm), and the wear amount of the byte was measured.
- the cutting conditions were: cutting speed-16 OmZmin; feed rate 0.03mnir e, no lubrication.
- the “particle size” in the table is It means the average particle size, and the maximum particle size of each particle is as follows.
- a 1 N average particle size 0.5 ⁇ -maximum particle size 3 ⁇ , average particle size 1.3 / m-maximum particle size 6 m, average particle size 2.1 / m-maximum particle size 10 / xm, average Particle size 3 ⁇ -maximum particle size 15 m, average particle size 8 ⁇ —maximum particle size 25 ⁇ .
- F e 3 P average particle size 5 ⁇ m-maximum particle size 30 m, average particle size 25 Aim-maximum particle size 100 ⁇ , average particle size 50 / m-maximum particle size 150 Aim.
- Example 4 The test was performed in the same manner as in Example 1 except that the combination of the high hardness particles and the medium hardness particles was variously changed. Table 4 shows the results.
- abrasion resistance and machinability as measured by the amount of bite wear are both achieved at an excellent level. Can be done.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Sliding-Contact Bearings (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98947906A EP0962541B1 (en) | 1997-10-17 | 1998-10-16 | Copper-base sintered sliding material excellent in slipperiness and machinability |
DE69807848T DE69807848T2 (de) | 1997-10-17 | 1998-10-16 | Gesintertes gleitmaterial auf kupferbasis mit ausgezeichnetem gleitvermögen und bearbeitbarkeit |
US09/331,049 US6165246A (en) | 1997-10-17 | 1998-10-16 | Copper-base sintered sliding material excellent in slipperiness and machaniability |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9/285829 | 1997-10-17 | ||
JP28582997A JP4188440B2 (ja) | 1997-10-17 | 1997-10-17 | 摺動特性及び被削性に優れた銅系焼結摺動材料 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999020806A1 true WO1999020806A1 (en) | 1999-04-29 |
Family
ID=17696627
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1998/004685 WO1999020806A1 (en) | 1997-10-17 | 1998-10-16 | Copper-base sintered sliding material excellent in slipperiness and machinability |
Country Status (6)
Country | Link |
---|---|
US (1) | US6165246A (ja) |
EP (1) | EP0962541B1 (ja) |
JP (1) | JP4188440B2 (ja) |
KR (1) | KR100319210B1 (ja) |
DE (1) | DE69807848T2 (ja) |
WO (1) | WO1999020806A1 (ja) |
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JP7219198B2 (ja) | 2019-10-16 | 2023-02-07 | 大豊工業株式会社 | 銅合金摺動材料 |
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- 1998-10-16 EP EP98947906A patent/EP0962541B1/en not_active Expired - Lifetime
- 1998-10-16 DE DE69807848T patent/DE69807848T2/de not_active Expired - Lifetime
- 1998-10-16 US US09/331,049 patent/US6165246A/en not_active Expired - Lifetime
- 1998-10-16 WO PCT/JP1998/004685 patent/WO1999020806A1/ja active IP Right Grant
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2355016A (en) * | 1999-09-13 | 2001-04-11 | Daido Metal Co | Copper sliding bearing alloy |
GB2355016B (en) * | 1999-09-13 | 2002-08-07 | Daido Metal Co | Sliding material of copper alloy |
US8679641B2 (en) | 2007-01-05 | 2014-03-25 | David M. Saxton | Wear resistant lead free alloy bushing and method of making |
US9657777B2 (en) | 2007-01-05 | 2017-05-23 | Federal-Mogul Llc | Wear resistant lead free alloy bushing and method of making |
CN105723007A (zh) * | 2013-11-13 | 2016-06-29 | 北欧古苏姆冶金公司 | 含有陶瓷纳米粒子并具有改进的机械加工性能的黄铜合金 |
CN105723007B (zh) * | 2013-11-13 | 2018-09-11 | 北欧古苏姆冶金公司 | 含有陶瓷纳米粒子并具有改进的机械加工性能的黄铜合金 |
CN109790598A (zh) * | 2016-09-30 | 2019-05-21 | 大同金属工业株式会社 | 滑动构件及其制造方法 |
CN109790598B (zh) * | 2016-09-30 | 2021-07-06 | 大同金属工业株式会社 | 滑动构件及其制造方法 |
CN111020269A (zh) * | 2019-12-09 | 2020-04-17 | 苏州列治埃盟新材料技术转移有限公司 | 一种用于海洋工程机械高强度镀镍碳化硅铜基合金新材料 |
RU2757878C1 (ru) * | 2021-03-23 | 2021-10-22 | Государственное Научное Учреждение Институт Порошковой Металлургии Имени Академика О.В. Романа | Состав спеченного фрикционного материала на основе меди |
Also Published As
Publication number | Publication date |
---|---|
JP4188440B2 (ja) | 2008-11-26 |
US6165246A (en) | 2000-12-26 |
DE69807848T2 (de) | 2003-08-14 |
EP0962541A1 (en) | 1999-12-08 |
JPH11124646A (ja) | 1999-05-11 |
DE69807848D1 (de) | 2002-10-17 |
EP0962541B1 (en) | 2002-09-11 |
KR100319210B1 (ko) | 2002-01-05 |
KR20000069551A (ko) | 2000-11-25 |
EP0962541A4 (en) | 2000-01-12 |
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