CN106544541A - A kind of high-strength leadless copper base sliding material and preparation method thereof - Google Patents
A kind of high-strength leadless copper base sliding material and preparation method thereof Download PDFInfo
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- CN106544541A CN106544541A CN201610999349.XA CN201610999349A CN106544541A CN 106544541 A CN106544541 A CN 106544541A CN 201610999349 A CN201610999349 A CN 201610999349A CN 106544541 A CN106544541 A CN 106544541A
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- sliding bearing
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- 239000000463 material Substances 0.000 title claims abstract description 45
- 239000010949 copper Substances 0.000 title claims abstract description 32
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 title abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000000843 powder Substances 0.000 claims abstract description 31
- 229910052742 iron Inorganic materials 0.000 claims abstract description 21
- 238000000227 grinding Methods 0.000 claims abstract description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 15
- 239000000956 alloy Substances 0.000 claims description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 12
- 238000000498 ball milling Methods 0.000 claims description 9
- 238000005245 sintering Methods 0.000 claims description 9
- 229910052786 argon Inorganic materials 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000012298 atmosphere Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 238000004886 process control Methods 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 238000005915 ammonolysis reaction Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 239000011574 phosphorus Substances 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 239000011593 sulfur Substances 0.000 claims description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 238000005551 mechanical alloying Methods 0.000 abstract description 5
- 239000000758 substrate Substances 0.000 abstract description 4
- 239000008187 granular material Substances 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 238000005461 lubrication Methods 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 25
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000007654 immersion Methods 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 239000011324 bead Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 3
- 238000000713 high-energy ball milling Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000003746 solid phase reaction Methods 0.000 description 2
- 238000010671 solid-state reaction Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- -1 meanwhile Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- 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
-
- B22F1/0003—
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses a kind of high-strength unleaded Cu-based sliding bearing material and preparation method thereof, Iron sulfuret. powder and bronze powder mechanical alloying are made by ball grinding technique, improve the Interface adhesive strength of Iron sulfuret. and copper, Iron sulfuret. granule is evenly distributed in Copper substrate, improve deficiency of the Iron sulfuret. content compared with Gao Shiyi reunions, the dispersion-strengthened action of FeS can be played, improve material mechanical performance, the present invention mainly uses the excellent self-lubricating solid abilities of FeS itself, improve unleaded Cu-based sliding bearing material friction and wear behavior, realize effective unification of the high intensity and good lubrication characteristic of Cu-based sliding bearing material, widen application of the leadless copper base bearing material under complex working condition.
Description
Technical field
The invention belongs to bearing material technical field, and in particular to material for sliding bearing and preparation method thereof.
Background technology
As lead has, matter is soft, low-melting feature, is widely used in Cu-based sliding bearing material, meanwhile, lead
It is a heavy metal species, serious harm is suffered to human body and environment.At present, the developed country such as America and Europe is all carried out to the use of lead
Strict restriction.
Iron sulfuret.（FeS）As common solid self lubricant material, with relatively low shear strength, in cuprio sliding axle
Application in corbel material is relatively broad.But Iron sulfuret.（FeS）It is poor with the copper alloy matrix compatibility, when its content is higher,
Iron sulfuret.（FeS）Easily occurring to reunite, hole easily being produced with matrix junction, interface quality is poor, weakens material entirety
Mechanical property.
Mechanical alloying is a kind of high-energy ball-milling process, and it is, under conditions of high-energy ball milling, to be mixed using metal dust
The repeated deformation of thing, fracture, seam, diffuse into one another or occur solid-state reaction and form alloy powder between atom.Mechanical alloying belongs to
In reaction is forced, from the extraneous strain for adding high-energy, defect and nano level micro structure so that the thermodynamics of alloy process
Common solid-state reaction is different from kinetics.
Mechanical alloying is improving Iron sulfuret.（FeS）Granule is more tiny, disperse, be evenly distributed on Copper substrate in and
Improving Iron sulfuret.（FeS）With in terms of Copper substrate interface cohesion have significant effect, improve the mechanical property of material, change
Be apt to copper-based material antifriction antisticking effect, a kind of new thinking is provided to research and develop novel lead-free copper-based bearings material.
The content of the invention
In order to improve material mechanical performance and tribological property, the present invention provides a kind of unleaded Cu-based sliding bearing material,
The present invention also provides a kind of preparation method of unleaded Cu-based sliding bearing material.
The particular technique solution of the present invention is as follows：
A kind of high-strength unleaded Cu-based sliding bearing material is by 85～98% bronze powder of mass percent and 2～15% Iron sulfuret. powder systems
Into；The mechanical property of the high-strength unleaded Cu-based sliding bearing material：380～400MPa of crushing strength, 70～80HB of hardness.
The composition of the bronze powder is by mass percentage：Nikel powder 1～3%, glass putty 6～10%, phosphorus powder 0～0.5%, iron powder
0～2%, surplus copper powder；The Iron sulfuret. powder crosses 60 mesh sieves, purity >=92%, and other are ferrum（Fe）, sulfur（S）, oxygen（O）.
The operating procedure for preparing high-strength unleaded Cu-based sliding bearing material is as follows：
（1）Ball powder-grinding：Bronze powder, Iron sulfuret. powder, abrading-ball and process control agent are added in ball grinder, ball grinder is taken out very
Sky, fills argon, and ball milling obtains mechanical alloy powder；
（2）Compacting：Green compact will be pressed in mould in the mechanical alloy powder；
（3）Sintering：The green compact are put in ammonolysis craft protective atmosphere and are sintered, obtained high-strength unleaded Cu-based sliding bearing and burn
Knot material.
Compared with prior art, Advantageous Effects of the invention embody in the following areas：
1st, the present invention replaces the effect of lead in copper-based bearings using the antifriction high-temperature stability of Iron sulfuret., realizes bearing material
It is unleaded, meet green, environmental protection development trend.
2nd, mechanical alloying makes Iron sulfuret. granule be evenly distributed in Copper substrate, improves Interface adhesive strength, together
Easy agglomeration traits when Shi Gaishan Iron sulfuret. contents are high, the mechanical property of material are improved, high-strength leadless copper base sliding axle
, up to 380～400MPa, hardness is up to 70～80HB for the crushing strength of corbel material.
3rd, the mechanical property of material using mechanical mill alloying process, is improved, while using FeS itself excellent solid
Self-lubricating capacities, significantly improve unleaded Cu-based sliding bearing material friction and wear behavior, realize the height of Cu-based sliding bearing material
Effective unification of intensity and good lubrication characteristic, widens application of the leadless copper base bearing material under complex working condition.
Specific embodiment
The present invention is further described with reference to embodiment.
Embodiment 1
The implementation case is implemented according to following steps：
1st, Iron sulfuret. powder 7.2g, bronze powder 232.8g are weighed, common 240g, wherein bronze powder are according to mass percent according to form
1 weighs.240g is put into into four ball grinders, single spherical tank fills powder gross mass 60g, adds 1wt% ethanol, adds rustless steel abrading-ball,
Wherein big ball 250g, bead 350g, evacuation fill 99.999% argon of purity, rotating speed 250r/min, Ball-milling Time 30h.Ball
Mill finishes natural cooling, obtains 240g mechanical alloy powder；
The mass percent of bronze powder constitutes as shown in table 1.
2nd, in 240g mechanical alloy powder, addition presses mechanical alloy powder mass percent 0.5wt% zinc stearate as lubrication
Agent, it is the friction-wear test sample of 18 × 6 × 5 mm, 15 × φ of φ to suppress size on 100 tons of universal hydraulic machines respectively
The crushing strength test specimen of 25 × 15mm, the impact ductility test sample of 55 × 10 × 10 mm, pressing pressure 600MPa
3rd, and then by step（2）The net strip sintering furnace that the three kinds of test specimens for obtaining are put into ammonia dissolving atmosphere is sintered, sintering
850 DEG C of temperature, obtains a kind of unleaded Cu-based sliding bearing material.
Three kinds of test specimens are carried out into mechanical property and friction and wear behavior detection respectively.Friction and wear behavior detection be
Carry out on MM-200 type friction wear testing machines, test friction pair is the ring block way of contact, and upper sample is friction-wear test sample
Product, sample size are 18 × 6 × 5 mm；Lower sample be annulus, 40 mm of external diameter Φ, 15 mm of internal diameter Φ, 10 mm of thickness, material
For 45# steel modifier treatment, hardness HRC50 ± 3.Lower sample rotation rate is 200 r/min.In pressure 50N, dry friction and pre- immersion oil are dry
Friction-wear test is carried out under friction duty.
Tribological property testing result after mechanical property and test 30min is as shown in table 2；
As can be seen that material shows good properties of antifriction and wear resistance under dry friction and pre- immersion oil DRY SLIDING, friction
Coefficient and wear extent are smaller；Under immersion oil DRY SLIDING, wear extent and coefficient of friction are less, illustrate material in immersion oil unlubricated friction
More preferable properties of antifriction and wear resistance is shown under rub piece part.
Embodiment 2
1st, Iron sulfuret. powder 14.4g, bronze powder 225.6g are weighed, common 240g, wherein bronze powder are according to mass percent according to table
Lattice 3 are weighed.240g is put into into four ball grinders, single spherical tank fills powder gross mass 60g, adds 1wt% stearic acid, adds rustless steel
Abrading-ball, wherein big ball 250g, bead 350g, evacuation, fill 99.999% argon of purity, rotating speed 250r/min, Ball-milling Time
25h.Ball milling finishes natural cooling, obtains 240g mechanical alloy powder；
The mass percent of bronze powder constitutes as shown in table 3.
2nd, in 240g mechanical alloy powder, addition presses mechanical alloy powder mass percent 0.5wt% zinc stearate as lubrication
Agent, it is the friction-wear test sample of 18 × 6 × 5 mm, 15 × φ of φ to suppress size on 100 tons of universal hydraulic machines respectively
The crushing strength test specimen of 25 × 15mm, the impact ductility test sample of 55 × 10 × 10 mm, pressing pressure 550MPa.
3rd, and then by step（2）The net strip sintering furnace that the three kinds of test specimens for obtaining are put into ammonia dissolving atmosphere is sintered,
860 DEG C of sintering temperature, obtains a kind of unleaded Cu-based sliding bearing material；
The method for testing performance of material is identical with embodiment 1.Performance detection knot after mechanical property and friction-wear test 30min
Fruit is as shown in table 4.
Embodiment 3
1st, Iron sulfuret. powder 21.6g, bronze powder 218.4g are weighed, common 240g, wherein bronze powder are according to mass percent according to table
Lattice 5 are weighed.240g is put into into four ball grinders, single spherical tank fills powder gross mass 60g, adds 1wt% stearic acid, adds rustless steel
Abrading-ball, wherein big ball 300g, bead 300g, evacuation, fill 99.999% argon of purity, rotating speed 300r/min, Ball-milling Time
20h.Ball milling finishes natural cooling, obtains 240g mechanical alloy powder.
The mass percent of bronze powder constitutes as shown in table 5.
2nd, in 240g mechanical alloy powder, addition presses mechanical alloy powder mass percent 0.5wt% zinc stearate as lubricant,
Suppressed on 100 tons of universal hydraulic machines respectively size be the friction-wear test sample of 18 × 6 × 5 mm, 15 × φ of φ 25 ×
The crushing strength test specimen of 15mm, the impact ductility test sample of 55 × 10 × 10 mm, pressing pressure 600MPa.
3rd, and then step（2）The net strip sintering furnace that the three kinds of test specimens for obtaining are put into ammonia dissolving atmosphere is sintered, and burns
840 DEG C of junction temperature, obtains a kind of unleaded Cu-based sliding bearing material.
The method for testing performance of material is identical with embodiment 1.Property after mechanical property and test friction-wear test 30min
Energy testing result is as shown in table 6.
Claims (8)
1. a kind of high-strength unleaded Cu-based sliding bearing material, it is characterised in that：By 85～98% bronze powder of mass percent and 2～
15% Iron sulfuret. powder is made；The mechanical property of the high-strength unleaded Cu-based sliding bearing material：370～400MPa of crushing strength,
65～75HB of hardness；
The composition of the bronze powder is by mass percentage：Nikel powder 1～3%, glass putty 6～10%, phosphorus powder 0～0.5%, iron powder 0～
2%th, surplus copper powder；The Iron sulfuret. powder crosses 60 mesh sieves, purity >=92%, and other are ferrum（Fe）, sulfur（S）, oxygen（O）.
2. a kind of preparation technology of high-strength unleaded Cu-based sliding bearing material according to claim 1, it is characterised in that operation
Step is as follows：
（1）Ball powder-grinding：Bronze powder, Iron sulfuret. powder, abrading-ball and process control agent are added in ball grinder, ball grinder is taken out very
Sky, fills argon, and ball milling obtains mechanical alloy powder；
（2）Compacting：Green compact will be pressed in mould in the mechanical alloy powder；
（3）Sintering：The green compact are put in ammonolysis craft protective atmosphere and are sintered, obtained high-strength unleaded Cu-based sliding bearing and burn
Knot material.
3. preparation method according to claim 2, it is characterised in that：Step（1）In, during ball powder-grinding, abrading-ball is mixed with waiting to grind
The mass ratio of compound material is 6:1～20:1, wherein grinding ball material be rustless steel, single mill ball quality 0.5g～5g.
4. preparation method according to claim 2, it is characterised in that：Step（1）In, process control agent be ethanol, acetone,
One kind in carbon tetrachloride, stearic acid, quality are the 1 ~ 3% of mixed material to be ground.
5. preparation method according to claim 2, it is characterised in that：Step（1）In, the purity of argon is 99.999%.
6. preparation method according to claim 2, it is characterised in that：Step（1）In, ball milling condition is rotating speed 200～500
R/min, 20～30h of Ball-milling Time.
7. preparation method according to claim 2, it is characterised in that：Step（2）In, the pressure for suppressing green compact is 400MPa
～600MPa.
8. preparation method according to claim 2, it is characterised in that：Step（3）In, sintering condition：Sintering temperature is 800
～1000 DEG C, temperature retention time is 30～60min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610999349.XA CN106544541B (en) | 2016-11-14 | 2016-11-14 | A kind of high-strength leadless copper base sliding material and preparation method thereof |
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| CN201610999349.XA CN106544541B (en) | 2016-11-14 | 2016-11-14 | A kind of high-strength leadless copper base sliding material and preparation method thereof |
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| CN106544541B CN106544541B (en) | 2018-01-26 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321974A (en) * | 2017-07-06 | 2017-11-07 | 合肥工业大学 | A kind of unleaded iron-based material for sliding bearing of high-strength antifriction and preparation method thereof |
| CN108103349A (en) * | 2017-12-13 | 2018-06-01 | 浙江双飞无油轴承股份有限公司 | A kind of leadless copper base bearing of the nickel containing phosphor tin（Bearing shell）Material and preparation method thereof |
| CN108277379A (en) * | 2018-03-16 | 2018-07-13 | 合肥工业大学 | A kind of high-strength antifriction unleaded Cu-based sliding bearing material |
| CN108486404A (en) * | 2018-03-16 | 2018-09-04 | 合肥工业大学 | A kind of antifriction unleaded Cu-based sliding bearing material and preparation method thereof |
| CN111074092A (en) * | 2019-12-26 | 2020-04-28 | 浙江杭机新型合金材料有限公司 | High-strength high-conductivity copper-nickel-silicon alloy material and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321974A (en) * | 2017-07-06 | 2017-11-07 | 合肥工业大学 | A kind of unleaded iron-based material for sliding bearing of high-strength antifriction and preparation method thereof |
| CN108103349A (en) * | 2017-12-13 | 2018-06-01 | 浙江双飞无油轴承股份有限公司 | A kind of leadless copper base bearing of the nickel containing phosphor tin（Bearing shell）Material and preparation method thereof |
| CN108277379A (en) * | 2018-03-16 | 2018-07-13 | 合肥工业大学 | A kind of high-strength antifriction unleaded Cu-based sliding bearing material |
| CN108486404A (en) * | 2018-03-16 | 2018-09-04 | 合肥工业大学 | A kind of antifriction unleaded Cu-based sliding bearing material and preparation method thereof |
| CN111074092A (en) * | 2019-12-26 | 2020-04-28 | 浙江杭机新型合金材料有限公司 | High-strength high-conductivity copper-nickel-silicon alloy material and preparation method thereof |
| CN111074092B (en) * | 2019-12-26 | 2021-08-17 | 浙江杭机新型合金材料有限公司 | High-strength high-conductivity copper-nickel-silicon alloy material and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN106544541B (en) | 2018-01-26 |
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