CN107904438A - A kind of acid bronze alloy material for sliding bearing and preparation method thereof - Google Patents
A kind of acid bronze alloy material for sliding bearing and preparation method thereof Download PDFInfo
- Publication number
- CN107904438A CN107904438A CN201711282913.7A CN201711282913A CN107904438A CN 107904438 A CN107904438 A CN 107904438A CN 201711282913 A CN201711282913 A CN 201711282913A CN 107904438 A CN107904438 A CN 107904438A
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- Prior art keywords
- powder
- sliding bearing
- copper
- alloy material
- acid
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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
- 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
- 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
- C22C32/0094—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 organic materials as the main non-metallic constituent, e.g. resin
-
- 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
Abstract
The invention discloses a kind of acid bronze alloy material for sliding bearing, it is characterised in that is made from the following raw materials in parts by weight：Tin 1.2 1.4, nickel 8.2 8.5, copper 91.2 91.5, silica flour 0.4 0.5, graphite powder 1.1 1.3, iron powder 13 14, hard acid acid zinc 23, aluminium powder 2.2 2.4, boron nitride 0.2 0.4, bismuth 0.2 0.5, auxiliary agent 12；The present invention uses PM technique, simple process and low cost, and acid bronze alloy material for sliding bearing of the present invention is not leaded using a kind of copper and tin nickel alloy, environmentally safe.Present invention addition tin has good corrosion resistance, and nickel can improve the modulus of elasticity of alloy, play the role of reinforced alloys.The bearing of material manufacture of the present invention has the advantages that high-bearing capacity, corrosion-resistant, high temperature resistant, indeformable stability are good and environmentally friendly.
Description
Technical field
The present invention relates to field of powder metallurgy, particularly a kind of acid bronze alloy material for sliding bearing and preparation method thereof.
Background technology
Sliding bearing of the internal-combustion engine mainly includes bearing shell, bushing, flange watt and thrust plate.The main function of sliding bearing has：
1st, support shaft and parts on shaft, the running accuracy of holding shaft；2nd, the friction and wear between shaft and supporting is reduced.For height
Speed, heavy duty, high accuracy, the occasion that subdivision is needed in structure, need to use sliding bearing, such as steam turbine, centrifugal compressor, internal combustion
Machine, large-size machine etc..Therefore sliding bearing is important part in sliding bearing of the internal-combustion engine, the part as engine most critical
One of, the quality of material for sliding bearing performance directly affects the performance of engine.As internal combustion engine carries to height, environmentally friendly direction hair
Exhibition, the requirement to bearing shell performance are continuously improved, it is desirable to which material for sliding bearing not only has high bearing capacity and fatigue resistance, together
When with good environmental-protecting performance, there is presently no a kind of material for sliding bearing that can meet above-mentioned requirements.In addition, traditional copper
Base alloy material is a kind of copper-lead clad steel band (such as CuPb20Sn4, CuPb24Sn), it is obtained on high-mechanic internal combustion engine
It is widely applied.Problem is to contain lead in the material, and the comparision contents of lead are high, larger to environmental disruption, does not meet society
Development need, there is an urgent need to a kind of environment-friendly type sliding bearing acid bronze alloy material that can substitute traditional copper-based alloy material for present society
Material.
Powder metallurgy is to produce metal dust or made with metal dust (or mixture of metal dust and non-metal powder)
For raw material, by shaping and sintering, the industrial technology of metal material, composite material and all kinds product is produced.At present, powder
Last metallurgical technology has been widely used in traffic, machinery, electronics, aerospace, weapons, biology, new energy, information and nuclear industry
Deng field, become in new material science most one of branch of development vitality.PM technique possess notable energy saving, material saving,
The series of advantages such as excellent performance, Product Precision are high and stability is good, are very suitable for producing in enormous quantities.In addition, part passes
The material and complex parts that system casting method and machining process can not be prepared can also be manufactured with PM technique, thus standby
Paid attention to by industrial quarters.Powder metallurgy structural part product material component limits from melting, can both add alloying component, also may be used
To add other structures component, and it is adjusted in sizable scope, and then can be reached in mechanical property as requested
To with the matched effect of steel part.
Powder metallurgy mechanization degree is high, can reduce personnel and improve efficiency, and then cost-effective.Powder metallurgy
Technology can substitute traditional manufacturing process, be that the vast traditional forms of enterprises is cost-effective.
So studying the formula of the powder metallurgy of various component of machine, different needs are adapted to, are had great importance.
Embodiment
The object of the present invention is to provide it is a kind of using PM technique production acid bronze alloy material for sliding bearing and its
Preparation method.
In order to achieve the object of the present invention, the present invention is implemented by following scheme：
A kind of acid bronze alloy material for sliding bearing, is made from the following raw materials in parts by weight：Tin 1.2-1.4, nickel 8.2-8.5,
Copper 91.2-91.5, silica flour 0.4-0.5, graphite powder 1.1-1.3, iron powder 13-14, hard acid acid zinc 2-3, aluminium powder 2.2-2.4, nitridation
Boron 0.2-0.4, bismuth 0.2-0.5, auxiliary agent 1-2；
The auxiliary agent is made from the following raw materials in parts by weight：Iron powder 3-4, kaolin 2-3, nano-sized carbon 1-2, zirconium fluoride 1-2,
Alum 2-3, sodium alginate 2-3, sodium tripolyphosphate 1-2, schmigel 2-3, copper sulphate 1-2, calcium stearate 1-2, three second of vinyl
Oxysilane 2-3；Preparation method is by iron powder, kaolin, zirconium fluoride, alum, sodium alginate, sodium tripolyphosphate, schmigel, sulphur
Sour copper mixing, is ground into 200-300 mesh powder, then adds vinyltriethoxysilane and is uniformly mixed, under 10-15Mpa
Be pressed into blank, then, be sent at 920-950 DEG C calcine 3-4 it is small when, after cooling, be ground into 300-400 mesh powder, it is and other
Residual components mix, and are heated to 60-70 DEG C, when stirring 1-2 is small under 1200-1500 revs/min, to obtain the final product.
Acid bronze alloy material for sliding bearing of the present invention, is made of step in detail below：
(1) tin, nickel, copper, iron powder, aluminium powder, bismuth are mixed, added in suitable quantity of water, be sent into ball milling in ball mill, obtain 250-
400 mesh powder, then, spray drying, drying, are pressed into bulk, then under nitrogen protection atmosphere under 8-12Mpa pressure
650-750 DEG C be sintered 8-10 it is small when, will after the crushing material after sintering cross 200-400 mesh sieves；
(2) other residual components are uniformly mixed；
(3) after step (1), (2) material being mixed evenly 60-75 minutes at 55-59 DEG C, mould, compacting are loaded
Into base；
(4) pressed compact is placed in sintering furnace, 1.5-2 is sintered under the conditions of being warming up to 800-850 DEG C with 6-8 DEG C/min of speed
Hour；Then when sintering 2-3 is small under the conditions of being warming up to 1050-1150 DEG C with 5-7 DEG C/min of speed；It is cooled in last air
Room temperature.
The present invention uses PM technique, simple process and low cost, and acid bronze alloy material for sliding bearing of the present invention uses
Be a kind of copper and tin nickel alloy, it is not leaded, it is environmentally safe.Present invention addition tin has good corrosion resistance, nickel energy
The modulus of elasticity of alloy is improved, plays the role of reinforced alloys.The bearing of material manufacture of the present invention has high-bearing capacity, corrosion resistant
The advantages of erosion, high temperature resistant, good and environmentally friendly indeformable stability.
Claims (2)
1. a kind of acid bronze alloy material for sliding bearing, it is characterised in that be made from the following raw materials in parts by weight：Tin 1.2-1.4, nickel
8.2-8.5, copper 91.2-91.5, silica flour 0.4-0.5, graphite powder 1.1-1.3, iron powder 13-14, hard acid acid zinc 2-3, aluminium powder 2.2-
2.4th, boron nitride 0.2-0.4, bismuth 0.2-0.5, auxiliary agent 1-2；
The auxiliary agent is made from the following raw materials in parts by weight：Iron powder 3-4, kaolin 2-3, nano-sized carbon 1-2, zirconium fluoride 1-2, alum
2-3, sodium alginate 2-3, sodium tripolyphosphate 1-2, schmigel 2-3, copper sulphate 1-2, calcium stearate 1-2, vinyl triethoxyl
Silane 2-3；Preparation method is by iron powder, kaolin, zirconium fluoride, alum, sodium alginate, sodium tripolyphosphate, schmigel, copper sulphate
Mixing, is ground into 200-300 mesh powder, then adds vinyltriethoxysilane and is uniformly mixed, is suppressed under 10-15Mpa
Into blank, then, when calcining 3-4 is small at 920-950 DEG C of feeding, after cooling, 300-400 mesh powder is ground into, with other residues
Component mixes, and is heated to 60-70 DEG C, when stirring 1-2 is small under 1200-1500 revs/min, to obtain the final product.
2. acid bronze alloy material for sliding bearing according to claim 1, it is characterised in that be made of step in detail below：
(1) tin, nickel, copper, iron powder, aluminium powder, bismuth are mixed, added in suitable quantity of water, be sent into ball milling in ball mill, obtain 250-400
Mesh powder, then, spray drying, drying, are pressed into bulk, then the 650- under nitrogen protection atmosphere under 8-12Mpa pressure
750 DEG C be sintered 8-10 it is small when, will after the crushing material after sintering cross 200-400 mesh sieves；
(2) other residual components are uniformly mixed；
(3) after step (1), (2) material being mixed evenly 60-75 minutes at 55-59 DEG C, load mould, be pressed into base；
(4) pressed compact is placed in sintering furnace, when sintering 1.5-2 is small under the conditions of being warming up to 800-850 DEG C with 6-8 DEG C/min of speed；
Then when sintering 2-3 is small under the conditions of being warming up to 1050-1150 DEG C with 5-7 DEG C/min of speed；It is cooled to room temperature i.e. in last air
Can.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711282913.7A CN107904438A (en) | 2017-11-29 | 2017-11-29 | A kind of acid bronze alloy material for sliding bearing and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711282913.7A CN107904438A (en) | 2017-11-29 | 2017-11-29 | A kind of acid bronze alloy material for sliding bearing and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107904438A true CN107904438A (en) | 2018-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711282913.7A Pending CN107904438A (en) | 2017-11-29 | 2017-11-29 | A kind of acid bronze alloy material for sliding bearing and preparation method thereof |
Country Status (1)
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| CN (1) | CN107904438A (en) |
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2017
- 2017-11-29 CN CN201711282913.7A patent/CN107904438A/en active Pending
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180413 |