CN107891154A - A kind of preparation method of sliding bearing powdered metallurgical material - Google Patents
A kind of preparation method of sliding bearing powdered metallurgical material Download PDFInfo
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- CN107891154A CN107891154A CN201711235750.7A CN201711235750A CN107891154A CN 107891154 A CN107891154 A CN 107891154A CN 201711235750 A CN201711235750 A CN 201711235750A CN 107891154 A CN107891154 A CN 107891154A
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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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
- B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
-
- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
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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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
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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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/14—Making alloys containing metallic or non-metallic fibres or filaments by powder metallurgy, i.e. by processing mixtures of metal powder and fibres or filaments
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
- C22C49/12—Intermetallic matrix material
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/248—Thermal after-treatment
-
- 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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
- B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
- B22F2007/042—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal characterised by the layer forming method
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses a kind of preparation method of sliding bearing powdered metallurgical material, the first raw material mixture by weight of this method, stir, load mould and be pressed into base；Load mould and be pressed into base；Then pressed compact is placed in sintering furnace and sintered, by the semi-finished product after sintering through Overheating Treatment, finally obtain product by following process.The sliding bearing that the inventive method is prepared has intensity, hardness, crushing strength and the wearability higher than market like product with powdered metallurgical material, extends the service life of alloy components；And raw material is easy to get, processing cost is low, preparation technology is simple, parameter is easily-controllable, production process safety and environmental protection, is adapted to large-scale industrial production.
Description
Technical field
The invention belongs to field of powder metallurgy, is related to a kind of preparation method of sliding bearing powdered metallurgical material.
Technical background
Sliding bearing（slidingbearing）, the bearing that is worked under sliding friction.Sliding bearing stable working, can
Lean on, noiseless.Under the conditions of hydrodynamic lubrication, slidingsurface is separated without occurring directly to contact by lubricating oil, can also be subtracted significantly
Small friction loss and surface abrasion, oil film also have certain vibration absorption ability.But starting friction resistance is larger.Axle is supported by bearing
Part be referred to as axle journal, with axle journal match part be referred to as bearing shell.In order to improve the frictional property on bearing shell surface and in its interior table
The friction reducing material cast on face is referred to as jewel.The material of bearing shell and jewel is referred to as material for sliding bearing.Sliding bearing
Application scenario is typically under high speed light loading working condition.Because sliding bearing is part conventional in various machineries, it is desirable to slide
Bearing material has enough compression strength and anti-fatigue performance, good anti-friction wear-resistant（Coefficient of friction is small）, deposit profit
The function of lubricating oil and good running-in ability, iron-base powder metallurgy material is the most frequently used bearing material, according to China GB/T-2012
《Sliding bearing PM technique condition》, iron base bearing material is sintered state, and crushing strength highest is that the trade mark is
FZ12162, its numerical value are K >=380MPa, and oil content >=12%, because the strength character of material is not high, hardness is low, causes bearing
Wear, the life-span is shorter, it is impossible to meet bearing in low speed, load is larger and has and works under the conditions of certain impact load working condition,
Such as the oil cylinder bearing of engineering machinery such as excavator, bull-dozer.Powder metallurgy is not limited by melting, can both add alloy into
Point, other structures component can also be added, and be adjusted as requested in sizable scope, and then in mechanical property
On can reach effect with Components Matching.Powder metallurgy mechanization degree is high, can reduce personnel, and and can improves efficiency, and then
It is cost-effective.PM technique can substitute traditional manufacturing process, be that the vast traditional forms of enterprises is cost-effective.So research is a kind of
The formula of sliding bearing powder metallurgy, different needs are adapted to, are had great importance.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of system of sliding bearing powdered metallurgical material
Preparation Method.
The purpose of the present invention is achieved through the following technical solutions：A kind of system of sliding bearing powdered metallurgical material
Preparation Method, comprise the following steps：
（1）Raw material mixture：Magnetic iron ore powder 40-50 parts, silicon nitride 10-15 parts, nano titanium carbide 6-8 parts, silicon are weighed by proportioning
Change tungsten 6-8 parts, graphite powder 15-20 parts, boron nitride 4-6 parts, hard acid acid zinc 2-3 powder, aluminium powder 2.2-2.4 parts, three two tin 2-4 of oxidation
Part, butyronitrile emulsion 6-14 parts, aluminum oxide 3-5 parts, cuprous iodide 4-8 parts, melamine modified phenolic resin 6-8 parts, three oxidations
Two lanthanum 1-1.8 parts, potassium titanate crystal whisker 3-11 parts, carborundum powder 6-8 parts；
（2）Above-mentioned material is stirred at 45-50 DEG C after 50-60 minutes, load mould, in 15~30Mpa of pressure, temperature
120~200 DEG C, base is pressed under the conditions of 5~20 minutes dwell times；
（3）Sintering：By step（2）Gained pressed compact is fixed on supporting steel back, 960-1020 DEG C, 2MPa pressure, hydrogen shield
Sintered 3 hours by sintering process down；
（4）Heat treatment：By step（3）Gained agglomerated material heats under protective atmosphere, carbon potential 0.75-0.85, hardening heat
750-830 DEG C, hardening media be machinery oil, then 170 DEG C -220 DEG C tempering 2-3 hours must be heat-treated after product.
（5）Following process：Product vacuum oil immersion after being heat-treated, oil temperature are 80 DEG C -100 DEG C, and vacuum pressure value is not more than
8KPa, immersion oil time are 30-60 minutes, finally carry out machining by numerically controlled lathe and get product.
It is described to weigh 45 parts of magnetic iron ore powder, 13 parts of silicon nitride, 7 parts of nano titanium carbide, 7 parts of tungsten silicide, graphite by proportioning
17 parts of powder, 5 parts of boron nitride, the powder of hard acid acid zinc 2.5,2.3 parts of aluminium powder, three 3 parts of two tin of oxidation, 10 parts of butyronitrile emulsion, aluminum oxide 4
Part, 6 parts of cuprous iodide, 7 parts of melamine modified phenolic resin, 1.4 parts of lanthanum sesquioxide, 7 parts of potassium titanate crystal whisker, carborundum powder
7 parts.
The auxiliary agent is by VTES, polycaprolactone diols, sodium alginate, sodium tripolyphosphate according to weight
Amount compares 6-7：2-4：1-3：2-5 compositions.
It is described by step（3）Gained agglomerated material heats under protective atmosphere, carbon potential 0.8,800 DEG C of hardening heat, quenching
Medium is machinery oil, product after then must being heat-treated in 200 DEG C of tempering 2-3 hours.
The auxiliary agent is by VTES, polycaprolactone diols, sodium alginate, sodium tripolyphosphate according to weight
Measure ratio 6.5：3：2：2.5 compositions.
The invention has the advantages that：The sliding bearing that the inventive method is prepared has with powdered metallurgical material
Intensity, hardness, crushing strength and the wearability higher than market like product, extend the service life of alloy components；And raw material
Be easy to get, processing cost it is low, preparation technology is simple, parameter is easily-controllable, production process safety and environmental protection, be adapted to large-scale industrialization life
Production.
Embodiment
Embodiment 1
A kind of preparation method of sliding bearing powdered metallurgical material, comprises the following steps：
（1）Raw material mixture：By proportioning weigh 40 parts of magnetic iron ore powder, 10 parts of silicon nitride, 6 parts of nano titanium carbide, 6 parts of tungsten silicide,
15 parts of graphite powder, 4 parts of boron nitride, the powder of hard acid acid zinc 2,2.2 parts of aluminium powder, three 2 parts of two tin of oxidation, 6 parts of butyronitrile emulsion, aluminum oxide 3-
5 parts, 4 parts of cuprous iodide, 6 parts of melamine modified phenolic resin, 1 part of lanthanum sesquioxide, 3 parts of potassium titanate crystal whisker, carborundum powder 6
Part；
（2）Above-mentioned material is stirred at 45-50 DEG C after 50-60 minutes, load mould, in 15~30Mpa of pressure, temperature
120~200 DEG C, base is pressed under the conditions of 5~20 minutes dwell times；
（3）Sintering：By step（2）Gained pressed compact is fixed on supporting steel back, 960-1020 DEG C, 2MPa pressure, hydrogen shield
Sintered 3 hours by sintering process down；
（4）Heat treatment：By step（3）Gained agglomerated material heats under protective atmosphere, carbon potential 0.75,750 DEG C of hardening heat, quenches
Fiery medium is machinery oil, product after then must being heat-treated in 170 DEG C of tempering 2-3 hours.
（5）Following process：Product vacuum oil immersion after being heat-treated, oil temperature are 80 DEG C -100 DEG C, and vacuum pressure value is not more than
8KPa, immersion oil time are 30-60 minutes, finally carry out machining by numerically controlled lathe and get product.
The auxiliary agent is by VTES, polycaprolactone diols, sodium alginate, sodium tripolyphosphate according to weight
Measure ratio 6：2：1：2 compositions.
Embodiment 2
A kind of preparation method of sliding bearing powdered metallurgical material, comprises the following steps：
（1）Raw material mixture：By proportioning weigh 50 parts of magnetic iron ore powder, 15 parts of silicon nitride, 8 parts of nano titanium carbide, 8 parts of tungsten silicide,
20 parts of graphite powder, 6 parts of boron nitride, the powder of hard acid acid zinc 3,2.4 parts of aluminium powder, three 4 parts of two tin of oxidation, 14 parts of butyronitrile emulsion, aluminum oxide 5
Part, 8 parts of cuprous iodide, 8 parts of melamine modified phenolic resin, 1.8 parts of lanthanum sesquioxide, 11 parts of potassium titanate crystal whisker, carborundum
8 parts of powder；
（2）Above-mentioned material is stirred at 45-50 DEG C after 50-60 minutes, load mould, in 15~30Mpa of pressure, temperature
120~200 DEG C, base is pressed under the conditions of 5~20 minutes dwell times；
（3）Sintering：By step（2）Gained pressed compact is fixed on supporting steel back, 960-1020 DEG C, 2MPa pressure, hydrogen shield
Sintered 3 hours by sintering process down；
（4）Heat treatment：By step（3）Gained agglomerated material heats under protective atmosphere, carbon potential 0.85,830 DEG C of hardening heat, quenches
Fiery medium is machinery oil, product after then must being heat-treated in 220 DEG C of tempering 2-3 hours.
（5）Following process：Product vacuum oil immersion after being heat-treated, oil temperature are 80 DEG C -100 DEG C, and vacuum pressure value is not more than
8KPa, immersion oil time are 30-60 minutes, finally carry out machining by numerically controlled lathe and get product.
The auxiliary agent is by VTES, polycaprolactone diols, sodium alginate, sodium tripolyphosphate according to weight
Measure ratio 7：4：3：5 compositions.
Embodiment 3
A kind of preparation method of sliding bearing powdered metallurgical material, comprises the following steps：
（1）Raw material mixture：By proportioning weigh 45 parts of magnetic iron ore powder, 13 parts of silicon nitride, 7 parts of nano titanium carbide, 7 parts of tungsten silicide,
17 parts of graphite powder, 5 parts of boron nitride, the powder of hard acid acid zinc 2.5,2.3 parts of aluminium powder, three 3 parts of two tin of oxidation, 10 parts of butyronitrile emulsion, oxidation
4 parts of aluminium, 6 parts of cuprous iodide, 7 parts of melamine modified phenolic resin, 1.4 parts of lanthanum sesquioxide, 7 parts of potassium titanate crystal whisker, carbonization
7 parts of silica flour；
（2）Above-mentioned material is stirred at 45-50 DEG C after 50-60 minutes, load mould, in 15~30Mpa of pressure, temperature
120~200 DEG C, base is pressed under the conditions of 5~20 minutes dwell times；
（3）Sintering：By step（2）Gained pressed compact is fixed on supporting steel back, 960-1020 DEG C, 2MPa pressure, hydrogen shield
Sintered 3 hours by sintering process down；
（4）Heat treatment：By step（3）Gained agglomerated material heats under protective atmosphere, carbon potential 0.8,800 DEG C of hardening heat, quenches
Fiery medium is machinery oil, product after then must being heat-treated in 200 DEG C of tempering 2-3 hours.
（5）Following process：Product vacuum oil immersion after being heat-treated, oil temperature are 80 DEG C -100 DEG C, and vacuum pressure value is not more than
8KPa, immersion oil time are 30-60 minutes, finally carry out machining by numerically controlled lathe and get product.
The auxiliary agent is by VTES, polycaprolactone diols, sodium alginate, sodium tripolyphosphate according to weight
Measure ratio 6.5：3：2：2.5 compositions.
By detection, the crushing strength numerical value 850-880MPa of material for sliding bearing, Rockwell hardness is made in the embodiment
100-115HRB, oil content 10-12%, oil lubrication coefficient of friction 0.070-0.078.
Claims (5)
1. a kind of preparation method of sliding bearing powdered metallurgical material, it is characterised in that the described method comprises the following steps：
（1）Raw material mixture：Magnetic iron ore powder 40-50 parts, silicon nitride 10-15 parts, nano titanium carbide 6-8 parts, silicon are weighed by proportioning
Change tungsten 6-8 parts, graphite powder 15-20 parts, boron nitride 4-6 parts, hard acid acid zinc 2-3 powder, aluminium powder 2.2-2.4 parts, three two tin 2-4 of oxidation
Part, butyronitrile emulsion 6-14 parts, aluminum oxide 3-5 parts, cuprous iodide 4-8 parts, melamine modified phenolic resin 6-8 parts, three oxidations
Two lanthanum 1-1.8 parts, potassium titanate crystal whisker 3-11 parts, carborundum powder 6-8 parts；
（2）Above-mentioned material is stirred at 45-50 DEG C after 50-60 minutes, load mould, in 15~30Mpa of pressure, temperature
120~200 DEG C, base is pressed under the conditions of 5~20 minutes dwell times；
（3）Sintering：By step（2）Gained pressed compact is fixed on supporting steel back, 960-1020 DEG C, 2MPa pressure, hydrogen shield
Sintered 3 hours by sintering process down；
（4）Heat treatment：By step（3）Gained agglomerated material heats under protective atmosphere, carbon potential 0.75-0.85, hardening heat
750-830 DEG C, hardening media be machinery oil, then 170 DEG C -220 DEG C tempering 2-3 hours must be heat-treated after product；
（5）Following process：Product vacuum oil immersion after being heat-treated, oil temperature are 80 DEG C -100 DEG C, and vacuum pressure value is not more than 8KPa,
The immersion oil time is 30-60 minutes, finally carries out machining by numerically controlled lathe and gets product.
A kind of 2. preparation method of sliding bearing powdered metallurgical material according to claim 1, it is characterised in that：It is described
45 parts of magnetic iron ore powder, 13 parts of silicon nitride, 7 parts of nano titanium carbide, 7 parts of tungsten silicide, 17 parts of graphite powder, boron nitride are weighed by proportioning
5 parts, the powder of hard acid acid zinc 2.5,2.3 parts of aluminium powder, three oxidation 3 parts of two tin, 10 parts of butyronitrile emulsion, 4 parts of aluminum oxide, 6 parts of cuprous iodide,
7 parts of melamine modified phenolic resin, 1.4 parts of lanthanum sesquioxide, 7 parts of potassium titanate crystal whisker, 7 parts of carborundum powder.
A kind of 3. preparation method of sliding bearing powdered metallurgical material according to claim 1, it is characterised in that：It is described
Auxiliary agent compares 6-7 by VTES, polycaprolactone diols, sodium alginate, sodium tripolyphosphate according to weight：2-4：
1-3：2-5 compositions.
A kind of 4. preparation method of sliding bearing powdered metallurgical material according to claim 1, it is characterised in that：It is described
By step（3）Gained agglomerated material heats under protective atmosphere, and carbon potential 0.8,800 DEG C of hardening heat, hardening media are machinery oil,
Then product after must being heat-treated in 200 DEG C of tempering 2-3 hours.
A kind of 5. preparation method of sliding bearing powdered metallurgical material according to claim 3, it is characterised in that：It is described
Auxiliary agent compares 6-7 by VTES, polycaprolactone diols, sodium alginate, sodium tripolyphosphate according to weight：2-4：
1-3：2-5 compositions.
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| CN201711235750.7A CN107891154A (en) | 2017-11-30 | 2017-11-30 | A kind of preparation method of sliding bearing powdered metallurgical material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108515178A (en) * | 2018-05-21 | 2018-09-11 | 成都威士达粉末冶金有限公司 | A kind of copper-based oil containing bearing material of iron and preparation method thereof |
| CN112553490A (en) * | 2020-11-29 | 2021-03-26 | 无锡钊厚金属制造有限公司 | Preparation method of high-antifriction bearing |
| CN113414382A (en) * | 2021-06-09 | 2021-09-21 | 南京清研工程科技有限公司 | Flame-retardant aluminum-based composite material for hydrogen production and preparation method thereof |
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|---|---|---|---|---|
| JPH04124248A (en) * | 1990-09-14 | 1992-04-24 | Isamu Kikuchi | Sintered alloy for oilless bearing and its production |
| CN104789868A (en) * | 2013-09-12 | 2015-07-22 | 合肥波林新材料有限公司 | High-strength and wear-resisting iron based powder metallurgic bearing |
| CN107321993A (en) * | 2017-06-27 | 2017-11-07 | 浙江丰立机电有限公司 | A kind of powder metallurgical gear preparation method for being used to share bicycle |
| CN107377979A (en) * | 2017-06-16 | 2017-11-24 | 苏州莱特复合材料有限公司 | A kind of preparation method of anti-corrosion compressor valve plate |
-
2017
- 2017-11-30 CN CN201711235750.7A patent/CN107891154A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04124248A (en) * | 1990-09-14 | 1992-04-24 | Isamu Kikuchi | Sintered alloy for oilless bearing and its production |
| CN104789868A (en) * | 2013-09-12 | 2015-07-22 | 合肥波林新材料有限公司 | High-strength and wear-resisting iron based powder metallurgic bearing |
| CN107377979A (en) * | 2017-06-16 | 2017-11-24 | 苏州莱特复合材料有限公司 | A kind of preparation method of anti-corrosion compressor valve plate |
| CN107321993A (en) * | 2017-06-27 | 2017-11-07 | 浙江丰立机电有限公司 | A kind of powder metallurgical gear preparation method for being used to share bicycle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108515178A (en) * | 2018-05-21 | 2018-09-11 | 成都威士达粉末冶金有限公司 | A kind of copper-based oil containing bearing material of iron and preparation method thereof |
| CN112553490A (en) * | 2020-11-29 | 2021-03-26 | 无锡钊厚金属制造有限公司 | Preparation method of high-antifriction bearing |
| CN113414382A (en) * | 2021-06-09 | 2021-09-21 | 南京清研工程科技有限公司 | Flame-retardant aluminum-based composite material for hydrogen production and preparation method thereof |
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Application publication date: 20180410 |