CN106048320A - Aluminium-matrix composite material for automobile transmission gear, and preparation method thereof - Google Patents
Aluminium-matrix composite material for automobile transmission gear, and preparation method thereof Download PDFInfo
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- CN106048320A CN106048320A CN201610549713.2A CN201610549713A CN106048320A CN 106048320 A CN106048320 A CN 106048320A CN 201610549713 A CN201610549713 A CN 201610549713A CN 106048320 A CN106048320 A CN 106048320A
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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
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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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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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
- C22C1/08—Alloys with open or closed pores
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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
- C22C1/08—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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- 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
- C22C32/0005—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 at least one oxide and at least one of carbides, nitrides, borides or silicides as the main non-metallic constituents
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- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses an aluminium-matrix composite material for an automobile transmission gear, and a preparation method thereof. The aluminium-matrix composite material is prepared from the following raw materials in parts by weight: 95-98% of aluminium, 0.1-0.14% of germanium, 1-1.2% of manganese, 0.13-0.16% of titanium, 0.3-0.35% of copper, 0.04-0.06% of lithium, 0.2-0.3% of zinc, 0.06-0.1% of cetyl trimethyl ammonium bromide, 3-5% of graphene oxide, 5-8% of zirconium hydride, 0.85-1% of hexachloroethane, 0.4-0.6% of calcareous shale, 0.24-0.3% of sodium alginate, 0.2-0.4% of calcium silicide, 2.3-2.4% of silicon dioxide, not greater than 0.01% of impurities, and an appropriate amount of deionized water. According to the aluminium-matrix composite material disclosed by the invention, improvement for the comprehensive performance of an industrial aluminium alloy is effectively realized through improvement for a casting process, and the requirements of a high load, a light weight and good toughness of the automobile transmission gear can be met; and the aluminium-matrix composite material is low in preparation cost and worthy of popularization.
Description
Technical field
The present invention relates to technical field of automobile parts, particularly relate to a kind of automobile transmission gear aluminum matrix composite and
Its preparation method.
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 automobile transmission gear aluminum-base composite material
Material and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of automobile transmission gear aluminum matrix composite and preparation method thereof, is made up of the raw material of following weight portion: aluminum
95-98, germanium 0.1-0.14, manganese 1-1.2, titanium 0.13-0.16, copper 0.3-0.35, lithium 0.04-0.06, zinc 0.2-0.3, hexadecane
Base trimethylammonium bromide 0.06-0.1, graphene oxide 3-5, zircoium hydride 5-8, hexachlorethane 0.85-1, calcareous shale 0.4-
0.6, sodium alginate 0.24-0.3, calcium silicide 0.2-0.4, silicon dioxide 2.3-2.4, impurity≤0.01, deionized water are appropriate.
Described a kind of automobile transmission gear aluminum matrix composite and preparation method thereof, by following concrete steps preparation system
Become:
(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) sodium alginate is added in the deionized water of 3 times amount, be heated to while stirring being completely dissolved rear and hexachlorethane, silicon
Change calcium mixing to be added in high speed mixer, after stirring 10min with the speed of 1000 revs/min, send into extruding pelletization in comminutor, will
With 10 DEG C/min of ramp to 450 DEG C in granule feeding sintering furnace, sintering 2 hours, it is standby that taking-up is cooled to room temperature briquet
With；
(3) residue aluminium powder, germanium, manganese, titanium, copper, lithium, zinc 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
Silicon dioxide, 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 present invention, by the improvement to casting technique, effectively achieves the improvement of commercial aluminum alloy combination property, it is possible to meet automobile
The requirement of travelling gear top load, lighting and good toughness, preparation cost is low, is worthy to be popularized.
Detailed description of the invention
A kind of automobile transmission gear aluminum matrix composite and preparation method thereof, by the raw material system of following weight portion (kilogram)
Prepare into: aluminum 95, germanium 0.1, manganese 1, titanium 0.13, copper 0.3, lithium 0.04, zinc 0.2, cetyl trimethylammonium bromide 0.06, oxidation
Graphene 3, zircoium hydride 5, hexachlorethane 0.85, calcareous shale 0.4, sodium alginate 0.24, calcium silicide 0.2, silicon dioxide 2.3,
Impurity≤0.01, deionized water are appropriate.
Described a kind of automobile transmission gear aluminum matrix composite and preparation method thereof, by following concrete steps preparation system
Become:
(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) sodium alginate is added in the deionized water of 3 times amount, be heated to while stirring being completely dissolved rear and hexachlorethane, silicon
Change calcium mixing to be added in high speed mixer, after stirring 10min with the speed of 1000 revs/min, send into extruding pelletization in comminutor, will
With 10 DEG C/min of ramp to 450 DEG C in granule feeding sintering furnace, sintering 2 hours, it is standby that taking-up is cooled to room temperature briquet
With；
(3) residue aluminium powder, germanium, manganese, titanium, copper, lithium, zinc 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 two
Silicon oxide, 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: 231MPa；Tensile strength: 258MPa；Have no progeny percentage of total elongation: 21.5%；Impact strength: 47J.
Claims (2)
1. automobile transmission gear aluminum matrix composite and preparation method thereof, it is characterised in that former by following weight portion
Material preparation is made: aluminum 95-98, germanium 0.1-0.14, manganese 1-1.2, titanium 0.13-0.16, copper 0.3-0.35, lithium 0.04-0.06, zinc
0.2-0.3, cetyl trimethylammonium bromide 0.06-0.1, graphene oxide 3-5, zircoium hydride 5-8, hexachlorethane 0.85-1,
Calcareous shale 0.4-0.6, sodium alginate 0.24-0.3, calcium silicide 0.2-0.4, silicon dioxide 2.3-2.4, impurity≤0.01, go
Ionized water is appropriate.
A kind of automobile transmission gear aluminum matrix composite and preparation method thereof, it is characterised in that
It 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) sodium alginate is added in the deionized water of 3 times amount, be heated to while stirring being completely dissolved rear and hexachlorethane, silicon
Change calcium mixing to be added in high speed mixer, after stirring 10min with the speed of 1000 revs/min, send into extruding pelletization in comminutor, will
With 10 DEG C/min of ramp to 450 DEG C in granule feeding sintering furnace, sintering 2 hours, it is standby that taking-up is cooled to room temperature briquet
With；
(3) residue aluminium powder, germanium, manganese, titanium, copper, lithium, zinc 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
Silicon dioxide, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610549713.2A CN106048320A (en) | 2016-07-13 | 2016-07-13 | Aluminium-matrix composite material for automobile transmission gear, and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610549713.2A CN106048320A (en) | 2016-07-13 | 2016-07-13 | Aluminium-matrix composite material for automobile transmission gear, and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109207832A (en) * | 2017-06-30 | 2019-01-15 | 宜兴市韦德同机械科技有限公司 | A kind of particle emission device connection shaft material |
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 |
-
2016
- 2016-07-13 CN CN201610549713.2A patent/CN106048320A/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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109207832A (en) * | 2017-06-30 | 2019-01-15 | 宜兴市韦德同机械科技有限公司 | A kind of particle emission device connection shaft material |
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Application publication date: 20161026 |