CN100513625C - Amorphous carbon fiber aluminium based composite material and preparation method thereof - Google Patents
Amorphous carbon fiber aluminium based composite material and preparation method thereof Download PDFInfo
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- CN100513625C CN100513625C CNB2006100105988A CN200610010598A CN100513625C CN 100513625 C CN100513625 C CN 100513625C CN B2006100105988 A CNB2006100105988 A CN B2006100105988A CN 200610010598 A CN200610010598 A CN 200610010598A CN 100513625 C CN100513625 C CN 100513625C
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- carbon fiber
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Abstract
The invention discloses a low-modular high-resistance amorphous carbon fiber aluminium-base composite material and preparing method, which consists of 10-25% amorphous carbon fiber and 70-90% aluminium-base. The preparing method comprises the following steps: 1. putting allocated materials on the planet-typed balling machine to blend powder with ball material rate at 2: 1; 2. placing composite powder in the graphite mould to press and mould; putting the disposed material in the vacuum hot-pressed furnace to sinter; obtaining the product.
Description
Technical field
The present invention relates to the preparation method of aluminum matrix composite.
Background technology
The carbon fiber aluminum-based compound material Application Areas is extensive, but also exists the problem of many its development of obstruction simultaneously.Wherein metal-base composites is in preparation process, and the surface reaction problem is its key problem always.Major cause is that carbon fiber and aluminum substrate material when high-temperature molding serious surface reaction can take place, and generates fragility reacting phase Al
4C
3Al
4C
3Not only can destroy the integrity of carbon fiber, and make that the interface bond strength of fiber and matrix is too high, make matrix material that brittle rupture easily take place when stressed, its mechanical property is reduced.The method that addresses this problem employing at present be plating be coated with and vapour deposition at carbon fiber surface coating, but adopt this method complex process, cost height.
Summary of the invention
Serious surface reaction can take place in order to solve carbon fiber and alumina-base material when the high-temperature molding in the present invention, generates fragility reacting phase Al
4C
3Al
4C
3Can make matrix material that brittle rupture easily takes place when stressed, its mechanical property is reduced, complex process, the problem that cost is high provides a kind of preparation method of amorphous carbon fiber aluminium based composite material, and the concrete technical scheme that addresses the above problem is as follows:
The present invention is by amorphous carbon fiber and aluminium base compound making, by volume the umber amorphous carbon fiber be 10～30%, aluminium base be 90～70% to form.
Amorphous carbon fiber aluminium based composite material preparation method's of the present invention step is as follows:
Step 1, by volume umber get amorphous carbon fiber be 10～30%, aluminium base be 90～70% the amorphous carbon fiber and the aluminium base particle that prepare to be put into mix grinding on the planetary ball mill, ratio of grinding media to material is 2:1, then vacuumize, charge into argon gas then, to prevent that powder is oxidized in the mechanical milling process, mix grinding on planetary ball mill, rotating speed are 200～300 rev/mins, 8～10 hours mix grinding time;
Step 2, the powder behind the step 1 mix grinding being put into punching block coldmoulding, when material density is colded pressing to 50～60%, is that 50～60% materials are put into vacuum hotpressing stove together with steel die and carried out hot pressed sintering with densification, and vacuum tightness is 2 * 10
-2Pa, vacuum hotpressing stove begins to heat up then, heat-up rate is 10～20 ℃/min, is warming up to 200～300 ℃, is incubated 20～40 minutes, be warming up to 450～550 ℃ and remain on this temperature range again, beginning applies 150～200MPa pressure to material, keeps 20～30 minutes in this pressure range, cools to room temperature with the furnace, amorphous carbon fiber aluminium based composite material is promptly prepared in the demoulding.
The method applied in the present invention does not need amorphous carbon fiber is carried out surface coating technology, just can avoid the surface reaction of amorphous carbon fiber and aluminum substrate, the wild phase that obtains has that the interface wetting property is good, bonding strength is high, the high-quality matrix material of good dispersity, the reaction of no interface, and technology is simple.The matrix material cost that utilizes the present invention to prepare is low, also has the good characteristics of excellent mechanical property and plasticity-simultaneously.
Embodiment
Embodiment one: present embodiment is by amorphous carbon fiber and aluminium base making, by volume the umber amorphous carbon fiber be 10～30%, aluminium base be 90～70% to form.
The aluminium base 2017 duralumin particles of selecting for use.
Embodiment two: present embodiment by volume umber by amorphous carbon fiber be 10%, aluminium base be 90% to form.
Embodiment three: present embodiment by volume umber by amorphous carbon fiber be 20%, aluminium base be 80% to form.
Embodiment four: present embodiment by volume umber by amorphous carbon fiber be 30%, aluminium base be 70% to form.
Embodiment five: present embodiment preparation method's step is as follows:
Step 1, by volume umber get amorphous carbon fiber be 10～30%, aluminium base be 90～70%, the amorphous carbon fiber and the aluminium base particle that prepare are put into mix grinding on the planetary ball mill, ratio of grinding media to material is 2: 1, then vacuumize, charge into argon gas then, to prevent that powder is oxidized in the mechanical milling process, mix grinding on planetary ball mill, rotating speed is 200～300 rev/mins, 8～10 hours mix grinding time;
Step 2, the powder behind the step 1 mix grinding being put into punching block coldmoulding, when the material densification is colded pressing to 50～60%, is that 50～60% materials are put into vacuum hotpressing stove together with steel die and carried out hot pressed sintering with density, and vacuum tightness is 1～6 * 2 * 10
-2Pa, begin then to heat up, heat-up rate is 10～20 ℃/min, is warming up to 200～300 ℃, is incubated 20～40 minutes, be warming up to 450～550 ℃ again, beginning is to material pressurization 150～200MPa, and pressure was kept 20～30 minutes, cooled to room temperature with the furnace, the amorphous carbon fiber reinforced aluminum matrix composites is promptly prepared in the demoulding.
Embodiment six: the difference of present embodiment and embodiment five is that it also comprises step 3, to increase through the amorphous carbon fiber of step 2 and put into extrusion mould after aluminum matrix composite coats with fine aluminium, put into process furnace then and be warming up to 450～550 ℃, be incubated 25～35 minutes, matrix material taken out from process furnace put into extrusion mould and carry out hot extrusion, extrusion angle of die is got 120 °, extrusion ratio is 15:1, extrusion speed is 10mm/s, thereby obtains high-quality amorphous carbon fiber reinforced aluminum matrix composites.
The density of amorphous carbon fiber reinforced aluminum matrix composites approaches 100% after pushing, and the performance of material is better.
Embodiment seven: the aluminium base 2017 duralumin particles of selecting for use of present embodiment.Amorphous carbon fiber by volume umber be 10～30%, 2017 duralumin particle by volume umber be 70～90% to form; Above-mentioned raw materials powder and steel ball are put into ball grinder with ratio of grinding media to material 2:1, steel ball is selected large, medium and small three kinds of specifications for use, vacuumize the back applying argon gas, not oxidized in mechanical milling process with the protection powder, the mix grinding method that on planetary ball mill, adopts forward and backward to combine, rotating speed is 300 rev/mins, mix grinding 8 hours; With the powder coldmoulding in steel die that mixes, cold-forming is of a size of Φ 60mm, and density is about 50%, is that 50% material is put into vacuum hotpressing stove together with steel die and carried out hot pressed sintering with density, and vacuum tightness is 2 * 10
-2Pa begins to heat up then, and heat-up rate is 10 ℃/min, is warming up to 250 ℃ of insulations 30 minutes, be warming up to 500 ℃ again, beginning applies 200MPa pressure to material, and pressure was kept 20 minutes, and material is depressed into density near 100%, cool to room temperature with the furnace, move back mould, obtain matrix material; Put into overflow mould after the matrix material of above-mentioned acquisition coated with fine aluminium and heat to 500 ℃, be incubated 30 minutes, then matrix material is carried out hot extrusion, extrusion ratio is 16:1, and extrusion angle of die is got 120 °, thus acquisition C
f/ 2017A1 matrix material.
C
f/ 2017A1 performance of composites sees Table 1:
C under the different amorphous carbon fiber volume parts of table 1
fThe mechanical property of/2017A1 matrix material:
Claims (2)
1, the preparation method of amorphous carbon fiber aluminium based composite material is characterized in that it comprises the following step:
Step 1, by volume umber get amorphous carbon fiber be 10～30%, aluminium base be 90～70% the amorphous carbon fiber and the aluminium base particle that prepare to be put into mix grinding on the planetary ball mill, ratio of grinding media to material is 2:1, then vacuumize, charge into argon gas then, to prevent that powder is oxidized in the mechanical milling process, mix grinding on planetary ball mill, rotating speed are 200～300 rev/mins, 8～10 hours mix grinding time;
Step 2, the powder behind the step 1 mix grinding being put into punching block coldmoulding, after the material densification is colded pressing to 50～60%, is that 50～60% materials are put into vacuum hotpressing stove together with steel die and carried out hot pressed sintering with density, and vacuum tightness is 2 * 10
-2Pa, vacuum hotpressing stove begins to heat up then, heat-up rate is 10～20 ℃/min, is warming up to 200～300 ℃, is incubated 20～40 minutes, be warming up to 450～550 ℃ and remain on this temperature range again, beginning applies 150～200MPa pressure to material, keeps 20～30 minutes in this pressure range, cools to room temperature with the furnace, amorphous carbon fiber aluminium based composite material is promptly prepared in the demoulding.
2, the preparation method of amorphous carbon fiber aluminium based composite material according to claim 1, it is characterized in that it also includes step 3, put into extrusion mould after will coating with fine aluminium through the amorphous carbon fiber aluminium based composite material of step 2, put into process furnace then and be warming up to 450～550 ℃, be incubated 25～35 minutes, matrix material taken out from process furnace put into extrusion mould and carry out hot extrusion, extrusion angle of die is got 120 °, extrusion ratio is 15:1, extrusion speed is 10mm/s, thereby obtains high-quality amorphous carbon fiber aluminium based composite material.
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| CNB2006100105988A CN100513625C (en) | 2006-09-25 | 2006-09-25 | Amorphous carbon fiber aluminium based composite material and preparation method thereof |
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| CNB2006100105988A CN100513625C (en) | 2006-09-25 | 2006-09-25 | Amorphous carbon fiber aluminium based composite material and preparation method thereof |
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| CN1924073A CN1924073A (en) | 2007-03-07 |
| CN100513625C true CN100513625C (en) | 2009-07-15 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101197581B1 (en) | 2009-12-09 | 2012-11-06 | 연세대학교 산학협력단 | Metal matrix composites and method thereof |
| CN104213056B (en) * | 2014-09-15 | 2016-04-13 | 河南科技大学 | A kind of fibre reinforced aluminum magnesium alloy matrix material and preparation method thereof |
| CN104480413B (en) * | 2014-11-21 | 2016-12-07 | 北京科技大学 | A kind of preparation method of isotropic Aluminum-Matrix Composites with Short Fiber |
| CN105386087A (en) * | 2015-11-10 | 2016-03-09 | 昆明理工大学 | Producing method of carbon fiber anode material for electrolysis |
| CN107747069A (en) * | 2017-10-30 | 2018-03-02 | 桂林加宏汽车修理有限公司 | A kind of aluminum matrix composite and its manufacture method |
| CN108559929A (en) * | 2018-05-29 | 2018-09-21 | 合肥智慧龙图腾知识产权股份有限公司 | A kind of body of a motor car aluminium base light material and preparation method thereof |
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Non-Patent Citations (2)
| Title |
|---|
| 碳纤维增强铝基复合材料的制备及其拉伸性能. 王德庆，石子源，高宏.大连铁道学院学报，第21卷，卷第4期. 2000 |
| 碳纤维增强铝基复合材料的制备及其拉伸性能. 王德庆，石子源，高宏.大连铁道学院学报，第21卷，卷第4期. 2000 * |
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