CN105400978A - Wide-adaptability double-mechanism self-lubricating bearing material - Google Patents
Wide-adaptability double-mechanism self-lubricating bearing material Download PDFInfo
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- CN105400978A CN105400978A CN201510782941.XA CN201510782941A CN105400978A CN 105400978 A CN105400978 A CN 105400978A CN 201510782941 A CN201510782941 A CN 201510782941A CN 105400978 A CN105400978 A CN 105400978A
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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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/10—Alloys based on aluminium with zinc 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
- 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
- C22C32/0084—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 carbon or graphite as the main non-metallic constituent
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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
- 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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- 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
- B22F2998/10—Processes characterised by the sequence of their steps
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses a wide-adaptability double-mechanism self-lubricating bearing material. The material is prepared from, by weight, 85-90 parts of aluminum, 5-8 parts of zinc, 3-4 parts of copper, 1-2 parts of tin, 0.5-1 part of boron, 3-4 parts of polytetrafluoroethylene powder, 0.8-1.5 parts of molybdenum disulfide, 2-3 parts of stearic acid, 0.6-1 part of methylcellulose, 1-1.5 parts of graphite, 1-1.5 parts of talcum powder, 0.6-0.9 part of paraffin, 0.5-0.7 part of iron powder and an appropriate amount of oleic acid. The prepared material has good performance such as dry-grinding resistance, self-lubrication and inadhesion, and is uniform in structure and stable in performance.
Description
Technical field
The present invention relates to powder metallurgical technology, particularly relate to a kind of wide adaptation double-unit system self-lubricating bearing material.
Background technology
Metal sintering oil bearing is using metal-powder as raw material, the class agglomerated material made with powder metallurgical technique.Metal sintering oily preparation inherently porous, and have in the fabrication process can the quantity in free adjustment space, size and distribution advantage.Sintering metal oil bearing has been widely used in the various fields such as automobile, household electrical appliances, Transport Machinery, agricultural machine, instrument.The sintering metal oil bearing that modern industry mainly uses can be divided into copper base, iron-based, copper iron-based etc. by body material.Aluminium is one of the element the most widely that distributes in the earth's crust, and the content in the earth's crust is only second to oxygen and silicon, occupies the 3rd.In metal species, aluminium is the large metal of Equations of The Second Kind being only second to iron and steel.Aluminium is a kind of Industrial materials of widespread use, and fine aluminium is very soft, and intensity is not high, has good ductility, after adding the element such as copper, silicon, can effectively improve its mechanical property in aluminium.Aluminium base sliding surface bearing due to its density little, intensity is high, and rotproofness is good, and low cost and other advantages, and make it in some antifriction field, its Performance Ratio copper-based bearings material is more excellent.Although aluminum-based bearing material has a lot of excellent performance, but along with aluminum base powder metallurgy has the limitation of self, very large gap is also had from practical application, due to the problem in manufacturing process, the quality of burned product need to improve, and needs to improve performance scale operation further and expands its range of application.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of wide adaptation double-unit system self-lubricating bearing material.
The present invention is achieved by the following technical solutions:
A kind of wide adaptation double-unit system self-lubricating bearing material, is made up of the raw material of following weight part: aluminium 85-90, zinc 5-8, copper 3-4, tin 1-2, boron 0.5-1, polytetrafluoroethylene powder 3-4, molybdenumdisulphide 0.8-1.5, stearic acid 2-3, methylcellulose gum 0.6-1, graphite 1-1.5, talcum powder 1-1.5, paraffin 0.6-0.9, iron powder 0.5-0.7, oleic acid are appropriate;
Described one wide adaptation double-unit system self-lubricating bearing material, be made up of following concrete steps:
(1) aluminium, zinc, copper, tin and boron powder is poured in mortar ground and mixed even, again this mixed powder is added in ball mill, add appropriate alcohol and carry out wet ball grinding, ball milling speed is 20 revolutions per seconds, after ball milling 1-1.5h, mixed powder is added to placement after drying under 70 ° of C in vacuum drying oven for subsequent use;
(2) oleic acid and graphite mixing to be added in ultrasonic oscillation device ultrasonic disperse even, then to add mixed powder supersound process 30-45min prepared by step (1), for subsequent use after ultrasonic end solid-liquid separation;
(3) polytetrafluoroethylene powder is put into stirrer and mix 5-10min under 11000 revs/min, then add molybdenumdisulphide continuation mixing 10-15min, the powder mixed is placed in thermostatic drying chamber drying for standby under 80 ° of C;
(4) by stearic acid and methylcellulose gum Hybrid Heating, then add step (3) and all the other remaining mixing of materials stir, make particle, then mixed powder prepared by this particle and step (2) is added in mixer mixes;
(5) mixed powder prepared by step (4) is put into mould, pressure with 200-300Mpa in hydropress makes type, obtain green compact, green compact after shaping are sent in vacuum sintering furnace and sinters, agglomerating chamber's vacuum is 1.0 × 10-2-1.0 × 10-3Pa, sintering temperature heats up with the speed of 10 ° of C/min, is incubated 4-5 hour, cools to room temperature with the furnace afterwards when reaching 550-650 ° of C;
(6) blank prepared by step (5) is carried out surfacing, deburring process, then immersion oil can obtain bearing materials.
Advantage of the present invention is: the present invention adopts aluminium powder as matrix, add zinc, copper, tin and boron improve aluminium base intensity, relative density, porosity, the effect of crushing strength and reduction sintering temperature, the plasticity of aluminium is high, very easily be bonded on mould, cause demoulding difficulty, the present invention utilizes oleic acid and graphite to be mixed to form good adsorption and is coated on metal-powder surface, the problem that powder easily adheres to can be improved, the mixture of tetrafluoroethylene and molybdenumdisulphide is also adopted to make particle and metal powder mixed sintering, greatly strengthen the self-lubricity of aluminum-based bearing, reduce shrinkability, control pore size and the homogeneity of matrix, the talcum powder added, paraffin and iron powder enhance the oilness of alumina-base material, intensity and resistance to abrasion, material prepared by the present invention has excellent anti-dry grinding, self-lubricating, the performances such as inadhesion, material structure is even, stable performance.
Embodiment
A kind of wide adaptation double-unit system self-lubricating bearing material, is made up of the raw material of following weight part (kilogram): aluminium 85, zinc 5, copper 3, tin 1, boron 0.5, polytetrafluoroethylene powder 3, molybdenumdisulphide 0.8, stearic acid 2, methylcellulose gum 0.6, graphite 1, talcum powder 1, paraffin 0.6, iron powder 0.5, oleic acid are appropriate;
Described one wide adaptation double-unit system self-lubricating bearing material, be made up of following concrete steps:
(1) aluminium, zinc, copper, tin and boron powder is poured in mortar ground and mixed even, again this mixed powder is added in ball mill, add appropriate alcohol and carry out wet ball grinding, ball milling speed is 20 revolutions per seconds, after ball milling 1h, mixed powder is added to placement after drying under 70 ° of C in vacuum drying oven for subsequent use;
(2) oleic acid and graphite mixing to be added in ultrasonic oscillation device ultrasonic disperse even, then to add mixed powder supersound process 30min prepared by step (1), for subsequent use after ultrasonic end solid-liquid separation;
(3) polytetrafluoroethylene powder is put into stirrer and mix 5min under 11000 revs/min, then add molybdenumdisulphide continuation mixing 10min, the powder mixed is placed in thermostatic drying chamber drying for standby under 80 ° of C;
(4) by stearic acid and methylcellulose gum Hybrid Heating, then add step (3) and all the other remaining mixing of materials stir, make particle, then mixed powder prepared by this particle and step (2) is added in mixer mixes;
(5) mixed powder prepared by step (4) is put into mould, pressure with 200Mpa in hydropress makes type, obtain green compact, green compact after shaping are sent in vacuum sintering furnace and sinters, agglomerating chamber's vacuum is 1.0 × 10 × 10Pa, sintering temperature heats up with the speed of 10 ° of C/min, is incubated 4 hours, cools to room temperature with the furnace afterwards when reaching 550 ° of C;
(6) blank prepared by step (5) is carried out surfacing, deburring process, then immersion oil can obtain bearing materials.
Prepare volume aluminum-based bearing material according to embodiment, carry out performance test to it, result is as follows:
Vickers' hardness: 42, crushing strength: 194Mpa, tensile strength: 116Mpa, oleaginousness capacity: 21%.
Claims (2)
1. one kind wide adaptation double-unit system self-lubricating bearing material, it is characterized in that, be made up of the raw material of following weight part: aluminium 85-90, zinc 5-8, copper 3-4, tin 1-2, boron 0.5-1, polytetrafluoroethylene powder 3-4, molybdenumdisulphide 0.8-1.5, stearic acid 2-3, methylcellulose gum 0.6-1, graphite 1-1.5, talcum powder 1-1.5, paraffin 0.6-0.9, iron powder 0.5-0.7, oleic acid are appropriate.
2. a kind of wide adaptation double-unit system self-lubricating bearing material according to claim 1, is characterized in that, be made up of following concrete steps:
(1) aluminium, zinc, copper, tin and boron powder is poured in mortar ground and mixed even, again this mixed powder is added in ball mill, add appropriate alcohol and carry out wet ball grinding, ball milling speed is 20 revolutions per seconds, after ball milling 1-1.5h, mixed powder is added to placement after drying under 70 ° of C in vacuum drying oven for subsequent use;
(2) oleic acid and graphite mixing to be added in ultrasonic oscillation device ultrasonic disperse even, then to add mixed powder supersound process 30-45min prepared by step (1), for subsequent use after ultrasonic end solid-liquid separation;
(3) polytetrafluoroethylene powder is put into stirrer and mix 5-10min under 11000 revs/min, then add molybdenumdisulphide continuation mixing 10-15min, the powder mixed is placed in thermostatic drying chamber drying for standby under 80 ° of C;
(4) by stearic acid and methylcellulose gum Hybrid Heating, then add step (3) and all the other remaining mixing of materials stir, make particle, then mixed powder prepared by this particle and step (2) is added in mixer mixes;
(5) mixed powder prepared by step (4) is put into mould, pressure with 200-300Mpa in hydropress makes type, obtain green compact, green compact after shaping are sent in vacuum sintering furnace and sinters, agglomerating chamber's vacuum is 1.0 × 10-2-1.0 × 10-3Pa, sintering temperature heats up with the speed of 10 ° of C/min, is incubated 4-5 hour, cools to room temperature with the furnace afterwards when reaching 550-650 ° of C;
(6) blank prepared by step (5) is carried out surfacing, deburring process, then immersion oil can obtain bearing materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510782941.XA CN105400978A (en) | 2015-11-16 | 2015-11-16 | Wide-adaptability double-mechanism self-lubricating bearing material |
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| CN201510782941.XA CN105400978A (en) | 2015-11-16 | 2015-11-16 | Wide-adaptability double-mechanism self-lubricating bearing material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952846A (en) * | 2016-06-15 | 2016-09-21 | 江苏小太阳机械科技有限公司 | High-abrasion-resisting chain, manufacturing method for abrasion resisting layer of high-abrasion-resisting chain and manufacturing method for oilless bearing abrasion-resisting sleeve of high-abrasion-resisting chain |
| CN106041047A (en) * | 2016-05-31 | 2016-10-26 | 合肥正浩机械科技有限公司 | Powder metallurgy high-strength bearing material and preparation method thereof |
| CN106591609A (en) * | 2016-11-24 | 2017-04-26 | 江苏雨燕模业科技有限公司 | Cast die material and preparation method thereof |
Citations (3)
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| US20060013719A1 (en) * | 2004-07-14 | 2006-01-19 | Junichi Ichikawa | Wear-resistant sintered aluminum alloy with high strength and manufacturing method thereof |
| CN103071800A (en) * | 2012-11-23 | 2013-05-01 | 东睦(江门)粉末冶金有限公司 | Iron-based oil-containing bearing and manufacturing method thereof |
| CN104759631A (en) * | 2014-01-03 | 2015-07-08 | 西华大学 | Sintered high-zinc aluminum-based oil bearing and preparation method thereof |
-
2015
- 2015-11-16 CN CN201510782941.XA patent/CN105400978A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060013719A1 (en) * | 2004-07-14 | 2006-01-19 | Junichi Ichikawa | Wear-resistant sintered aluminum alloy with high strength and manufacturing method thereof |
| CN103071800A (en) * | 2012-11-23 | 2013-05-01 | 东睦(江门)粉末冶金有限公司 | Iron-based oil-containing bearing and manufacturing method thereof |
| CN104759631A (en) * | 2014-01-03 | 2015-07-08 | 西华大学 | Sintered high-zinc aluminum-based oil bearing and preparation method thereof |
Non-Patent Citations (1)
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| 李绍忠: ""烧结含油轴承的特性与汽车设计制造的选择"", 《汽车工程学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106041047A (en) * | 2016-05-31 | 2016-10-26 | 合肥正浩机械科技有限公司 | Powder metallurgy high-strength bearing material and preparation method thereof |
| CN105952846A (en) * | 2016-06-15 | 2016-09-21 | 江苏小太阳机械科技有限公司 | High-abrasion-resisting chain, manufacturing method for abrasion resisting layer of high-abrasion-resisting chain and manufacturing method for oilless bearing abrasion-resisting sleeve of high-abrasion-resisting chain |
| CN106591609A (en) * | 2016-11-24 | 2017-04-26 | 江苏雨燕模业科技有限公司 | Cast die material and preparation method thereof |
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Application publication date: 20160316 |