CN106048338A - Aluminium-matrix composite material for wear-resistant slide bearing - Google Patents
Aluminium-matrix composite material for wear-resistant slide bearing Download PDFInfo
- Publication number
- CN106048338A CN106048338A CN201610549732.5A CN201610549732A CN106048338A CN 106048338 A CN106048338 A CN 106048338A CN 201610549732 A CN201610549732 A CN 201610549732A CN 106048338 A CN106048338 A CN 106048338A
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- aluminium
- deionized water
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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
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- 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
- B22F1/14—Treatment of metallic powder
- B22F1/145—Chemical treatment, e.g. passivation or decarburisation
-
- 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
- B22F1/14—Treatment of metallic powder
- B22F1/145—Chemical treatment, e.g. passivation or decarburisation
- B22F1/147—Making a dispersion
-
- 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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- 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
- C22C1/00—Making non-ferrous alloys
- C22C1/08—Alloys with open or closed pores
- C22C1/083—Foaming process in molten metal other than by powder metallurgy
- C22C1/086—Gas foaming process
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses an aluminium-matrix composite material for a wear-resistant slide bearing. The aluminium-matrix composite material is prepared from the following raw materials in parts by weight: 95-98% of aluminium, 0.2-0.24% of copper, 0.1-0.13% of titanium, 0.6-1% of iron, 0.06-0.08% of iridium, 1-1.3% of manganese, 2-2.4% of magnesium, 0.06-0.1% of cetyl trimethyl ammonium bromide, 3-5% of graphene oxide, 5-8% of zirconium hydride, 0.9-1.3% of hexachloroethane, 0.3-0.4% of barium carbonate, 0.25-0.3% of pregelatinized starch, 0.7-1% of nanometre niobium carbide, 0.4-0.6% of zeolite, not greater than 0.01% of impurities, and an appropriate amount of deionized water. The alloy material disclosed by the invention is better in mechanical property, excellent in toughness, and high in wear resistance and corrosion resistance; and the alloy material has the advantages of being durable in use, less in maintenance, and high in safety in the case of being used for casing for the automobile slide bearing, and has a great application prospect.
Description
Technical field
The present invention relates to technical field of automobile parts, particularly relate to a kind of abrasion-resistant slide bearing aluminum matrix composite.
Background technology
Aluminum matrix composite has high specific strength, specific stiffness, ratio elastic modelling quantity, the most also has the most wear-resisting, resistance to
High-temperature behavior, has therefore suffered from paying close attention to widely.Conventional particle enhanced aluminum-based composite material technology of preparing has powder metallurgic method
With two kinds of techniques of casting.But the complex process equipment of powder metallurgic method, high expensive, be difficult to prepare large volume and complex-shaped
Part.And there is the danger such as dust-firing and blast in process of production.Casting technique is simple, easy to operate, permissible
Producing the composite of large volume, equipment investment is few, and production cost is low, suitable for mass production.
Graphene has the most excellent physical property and mechanical performance it is considered to be optimal metal_based material because of it
Reinforcement.But Graphene is very easy to reunite in metallic matrix, has become as restriction Graphene and strengthen Metal Substrate again
The key factor of condensation material development.Gao Xin is in " preparation of Graphene reinforced aluminum matrix composites and mechanical property research " literary composition
Use the Hummers preparation graphene oxide containing a large amount of negative charges, then use cationic surfactant to process aluminium powder and make
Its surface is with positive charge, and utilizes the mode of electrostatic self-assembled by the absorption of graphene uniform on aluminium powder surface, finally with
The mode of hot pressed sintering prepares aluminum matrix composite, but the addition of the consumption of surfactant, Graphene all can affect burning
Knot performance, relatively big on impacts such as the hardness of material, tensile strength, mechanical properties, quality of materials poor stability.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of abrasion-resistant slide bearing aluminum-base composite material
Material.
The present invention is achieved by the following technical solutions:
A kind of abrasion-resistant slide bearing aluminum matrix composite, is made up of the raw material of following weight portion: aluminum 95-98, copper 0.2-
0.24, titanium 0.1-0.13, ferrum 0.6-1, iridium 0.06-0.08, manganese 1-1.3, magnesium 2-2.4, cetyl trimethylammonium bromide 0.06-
0.1, graphene oxide 3-5, zircoium hydride 5-8, hexachlorethane 0.9-1.3, brium carbonate 0.3-0.4, pregelatinized Starch 0.25-0.3,
Nano silicon carbide niobium 0.7-1, zeolite 0.4-0.6, impurity≤0.01, deionized water are appropriate.
Described a kind of abrasion-resistant slide bearing aluminum matrix composite, is made up of following concrete steps:
(1) by the cetyl trimethylammonium bromide deionized water dissolving of 6-8 times amount, the aluminium powder being subsequently adding total amount 10% surpasses
Sound dispersion 20-30min, the most at room temperature magnetic agitation 1h, filter, wash, the most standby;Again graphene oxide is added to
Ultrasonic disperse 1h in 50ml deionized water, is added to aluminium powder in the deionized water of 100ml stirring and forms aluminum paste, by graphite oxide
Aqueous solution is added in aluminum paste be stirred continuously, until color becomes colorless transparent, filtration drying is standby;
(2) pregelatinized Starch is added in the deionized water of 3 times amount, after being heated to while stirring being completely dissolved and hexachlorethane,
The mixing of brium carbonate, zeolite is added in high speed mixer, sends in comminutor and extrude after stirring 10min with the speed of 1000 revs/min
Pelletize, sends into granule in sintering furnace with 10 DEG C/min of ramp to 450 DEG C, sinters 2 hours, takes out and is cooled to room temperature pressure
Make block standby;
(3) residue aluminium powder, copper, titanium, ferrum, iridium, manganese, magnesium mixing are added to ball milling in planetary ball mill, with argon as protection gas
Atmosphere, crosses 400 mesh sieves after ball milling 4-5h, be then added in smelting furnace be heated to be semisolid, and stirring semi solid aluminum Base Metal limit adds
Nano silicon carbide niobium, heating up, it is standby that solid-state mixed slurry is heated to liquid mixed slurry;
(4) the liquid slurry of step (3) is heated to 740-760 DEG C and carries out refine, refining agent bell jar prepared by step (2)
In press-in aluminium alloy, and it is in rotary moving to make even level, and refining time is 10-12min, stands 10-15min, then add after skimming
Enter foaming agent zircoium hydride to stir, pour foaming groove after mix homogeneously into and foam under 620-700 DEG C of argon shield 0.5-2h;
(5) mould is preheated to 220-300 DEG C standby, then mixture prepared by step (1) is placed in mould, by step (4)
The foaming aluminium alloy obtained is poured in mould, and pouring temperature is 650-680 DEG C, then naturally cools to room temperature the most available.
The invention have the advantage that the present invention uses surfactant to process part aluminium powder and makes its lotus that becomes positively charged, then and
Electronegative graphene oxide supersound process so that it is adsorb on aluminium powder surface uniformly, agglomeration does not occur, it is achieved graphite
Alkene is dispersed in aluminum alloy melt, and enhances the intensity of aluminum matrix composite, hardness, tensile strength and mechanical property etc.,
The double deoxidizer added reacts with aluminum alloy melt, has good deoxidation, desulfurization, the effect of carburetting, and adds after refine
Adding foaming agent, melt foaming processes and makes material and parent metal reaction fully, and the compatibility is good, and preparation cost is low, technique letter
Single;The alloy material that the present invention prepares has more preferably mechanical property, good-toughness, and wear-resisting erosion resistance is high, for automobile
The casting of sliding bearing is durable in use, safeguard less, the high advantage of safety, great application prospect.
Detailed description of the invention
A kind of abrasion-resistant slide bearing aluminum matrix composite, is made up of the raw material of following weight portion (kilogram): aluminum 95,
Copper 0.2, titanium 0.1, ferrum 0.6, iridium 0.06, manganese 1, magnesium 2, cetyl trimethylammonium bromide 0.06, graphene oxide 3, zircoium hydride
5, hexachlorethane 0.9, brium carbonate 0.3, pregelatinized Starch 0.25, nano silicon carbide niobium 0.7, zeolite 0.4, impurity≤0.01, go from
Sub-water is appropriate.
Described a kind of abrasion-resistant slide bearing aluminum matrix composite, is made up of following concrete steps:
(1) by the cetyl trimethylammonium bromide deionized water dissolving of 6 times amount, the aluminium powder being subsequently adding total amount 10% is ultrasonic
Dispersion 20min, the most at room temperature magnetic agitation 1h, filter, wash, the most standby;Again graphene oxide is added to 50ml
Ultrasonic disperse 1h in deionized water, is added to aluminium powder in the deionized water of 100ml stirring and forms aluminum paste, by graphene oxide water
Solution is added in aluminum paste be stirred continuously, until color becomes colorless transparent, filtration drying is standby;
(2) pregelatinized Starch is added in the deionized water of 3 times amount, after being heated to while stirring being completely dissolved and hexachlorethane,
The mixing of brium carbonate, zeolite is added in high speed mixer, sends in comminutor and extrude after stirring 10min with the speed of 1000 revs/min
Pelletize, sends into granule in sintering furnace with 10 DEG C/min of ramp to 450 DEG C, sinters 2 hours, takes out and is cooled to room temperature pressure
Make block standby;
(3) residue aluminium powder, copper, titanium, ferrum, iridium, manganese, magnesium mixing are added to ball milling in planetary ball mill, with argon as protection gas
Atmosphere, crosses 400 mesh sieves after ball milling 4h, be then added in smelting furnace be heated to be semisolid, and stirring semi solid aluminum Base Metal limit adds to be received
Rice niobium carbide, heating up, it is standby that solid-state mixed slurry is heated to liquid mixed slurry;
(4) the liquid slurry of step (3) is heated to 740 DEG C and carries out refine, refining agent bell jar prepared by step (2) is pressed into
In aluminium alloy, and it is in rotary moving to make even level, and refining time is 10min, stands 10min, add foaming agent hydrogen after skimming
Change zirconium to stir, pour foaming groove after mix homogeneously into and foam under 620 DEG C of argon shields 0.5h;
(5) mould is preheated to 220 DEG C standby, then mixture prepared by step (1) is placed in mould, step (4) is obtained
Foaming aluminium alloy be poured in mould, pouring temperature is 650 DEG C, then naturally cools to room temperature the most available.
The aluminum matrix composite preparing embodiment carries out performance test, and result is as follows:
Yield strength: 225MPa;Tensile strength: 252MPa;Have no progeny percentage of total elongation: 23.4%;Impact strength: 43J.
Claims (2)
1. an abrasion-resistant slide bearing aluminum matrix composite, it is characterised in that be made up of the raw material of following weight portion: aluminum
95-98, copper 0.2-0.24, titanium 0.1-0.13, ferrum 0.6-1, iridium 0.06-0.08, manganese 1-1.3, magnesium 2-2.4, cetyl front three
Base ammonium bromide 0.06-0.1, graphene oxide 3-5, zircoium hydride 5-8, hexachlorethane 0.9-1.3, brium carbonate 0.3-0.4, pregelatinated
Starch 0.25-0.3, nano silicon carbide niobium 0.7-1, zeolite 0.4-0.6, impurity≤0.01, deionized water are appropriate.
A kind of abrasion-resistant slide bearing aluminum matrix composite, it is characterised in that by following concrete step
Suddenly make:
(1) by the cetyl trimethylammonium bromide deionized water dissolving of 6-8 times amount, the aluminium powder being subsequently adding total amount 10% surpasses
Sound dispersion 20-30min, the most at room temperature magnetic agitation 1h, filter, wash, the most standby;Again graphene oxide is added to
Ultrasonic disperse 1h in 50ml deionized water, is added to aluminium powder in the deionized water of 100ml stirring and forms aluminum paste, by graphite oxide
Aqueous solution is added in aluminum paste be stirred continuously, until color becomes colorless transparent, filtration drying is standby;
(2) pregelatinized Starch is added in the deionized water of 3 times amount, after being heated to while stirring being completely dissolved and hexachlorethane,
The mixing of brium carbonate, zeolite is added in high speed mixer, sends in comminutor and extrude after stirring 10min with the speed of 1000 revs/min
Pelletize, sends into granule in sintering furnace with 10 DEG C/min of ramp to 450 DEG C, sinters 2 hours, takes out and is cooled to room temperature pressure
Make block standby;
(3) residue aluminium powder, copper, titanium, ferrum, iridium, manganese, magnesium mixing are added to ball milling in planetary ball mill, with argon as protection gas
Atmosphere, crosses 400 mesh sieves after ball milling 4-5h, be then added in smelting furnace be heated to be semisolid, and stirring semi solid aluminum Base Metal limit adds
Nano silicon carbide niobium, heating up, it is standby that solid-state mixed slurry is heated to liquid mixed slurry;
(4) the liquid slurry of step (3) is heated to 740-760 DEG C and carries out refine, refining agent bell jar prepared by step (2)
In press-in aluminium alloy, and it is in rotary moving to make even level, and refining time is 10-12min, stands 10-15min, then add after skimming
Enter foaming agent zircoium hydride to stir, pour foaming groove after mix homogeneously into and foam under 620-700 DEG C of argon shield 0.5-2h;
(5) mould is preheated to 220-300 DEG C standby, then mixture prepared by step (1) is placed in mould, by step (4)
The foaming aluminium alloy obtained is poured in mould, and pouring temperature is 650-680 DEG C, then naturally cools to room temperature the most available.
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CN201610549732.5A CN106048338A (en) | 2016-07-13 | 2016-07-13 | Aluminium-matrix composite material for wear-resistant slide bearing |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107649674A (en) * | 2017-08-14 | 2018-02-02 | 天津冶金职业技术学院 | A kind of powder metallurgy wear resistant automobile bearing and preparation method thereof |
CN108330363A (en) * | 2018-01-24 | 2018-07-27 | 安徽天平机械股份有限公司 | A kind of front-axle beam casting technique of steering axle of automobile |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105081310A (en) * | 2015-08-31 | 2015-11-25 | 哈尔滨理工大学 | Method for preparing grapheme reinforced aluminum matrix composite material |
CN105177365A (en) * | 2015-08-19 | 2015-12-23 | 合肥市田源精铸有限公司 | Novel aluminum alloy material |
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2016
- 2016-07-13 CN CN201610549732.5A patent/CN106048338A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105177365A (en) * | 2015-08-19 | 2015-12-23 | 合肥市田源精铸有限公司 | Novel aluminum alloy material |
CN105081310A (en) * | 2015-08-31 | 2015-11-25 | 哈尔滨理工大学 | Method for preparing grapheme reinforced aluminum matrix composite material |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107649674A (en) * | 2017-08-14 | 2018-02-02 | 天津冶金职业技术学院 | A kind of powder metallurgy wear resistant automobile bearing and preparation method thereof |
CN108330363A (en) * | 2018-01-24 | 2018-07-27 | 安徽天平机械股份有限公司 | A kind of front-axle beam casting technique of steering axle of automobile |
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Application publication date: 20161026 |