CN104762513A - Easily-processed fly ash aluminum-based composite material and preparation method thereof - Google Patents
Easily-processed fly ash aluminum-based composite material and preparation method thereof Download PDFInfo
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- CN104762513A CN104762513A CN201510125226.9A CN201510125226A CN104762513A CN 104762513 A CN104762513 A CN 104762513A CN 201510125226 A CN201510125226 A CN 201510125226A CN 104762513 A CN104762513 A CN 104762513A
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Abstract
The invention discloses an easily-processed fly ash aluminum-based composite material, which comprises the following components by weight part: 3-5 parts of tungsten carbide powder, 3-5 parts of attapulgite powder, 5-25 parts of fly ash microsphere, 65-85 parts of aluminium magnesium alloy powder, 4-6 parts of lithium powder, 4-6 parts of copper powder, 0.5-1.1 parts of polyvinyl alcohol and a proper amount of distilled water. According to the invention, the added tungsten carbide powder enhances thermal conductivity, intensity and wear resistant performance of the composite material, and the added attapulgite powder enhances cohesiveness between the materials, and can enhance the weatherability, heat insulation and corrosion resisting characteristics of the composite material. The composite material has the advantages of simple operation method, wide raw material source, low cost and good processability, and is suitable for large scale production.
Description
Technical field
The present invention relates to technical field of new material preparation, particularly relate to flyash aluminum matrix composite of a kind of easy processing and preparation method thereof.
Background technology
the light conduction instrument that optical fiber is total reflection principle in a kind of fiber utilizing light to make at glass or plastics and reaches, has a wide range of applications in the communications field.In the construction and maintenance process of fibre optic installations, often need to carry out the operation such as welding, fiber stripping to optical fiber, need to use different types of equipment.The submount material of these equipment adopts aluminum alloy materials usually, the performance such as its intensity, hardness, wear-resisting, heat-resisting and heat conduction is relevant with the metallic substance of interpolation, cost performance is not high, expensive, current people can not be met to a series of requirement such as fiber plant base humidity, easily processing, fire-retardant, heat conduction, heat-resisting, fire prevention.Flyash is one of industrial residue that the current discharge capacity of China is larger, and along with the development of power industry, the flyash quantity discharged of coal-burning power plant increases year by year, and a large amount of flyash does not add process, can produce airborne dust, atmosphere pollution; Entering water system then can cause river to silt up, and toxic chemical substance wherein also can work the mischief to human body and biology.At present, the domestic comprehensive utilization aspect research to flyash is many, but the rare report of the research preparing aluminum matrix composite aspect using flyash as enhanced granule.
Flyash, as the weighting material of aluminium alloy, reduces price and the density of matrix material, and adds weather resistance, abrasion resistance, intensity, rigidity, many performances such as heat-resisting, anticorrosive.But flyash diffustivity in aluminum-based matrix is bad, wettability is poor, and traditional its preparation process easily produces pore, bonding surface is insecure, affects the mechanical property of material, mechanical strength, weather resistance, rub and examine the performance such as coefficient and coefficient of thermal expansion.In order to solve this difficult problem, finding more applicable its preparation process and being undoubtedly an effective approach.
Summary of the invention
The object of this invention is to provide flyash aluminum matrix composite of a kind of easy processing and preparation method thereof.
In order to realize object of the present invention, the present invention is by following scheme implementation:
A flyash aluminum matrix composite for easy processing, is made up of the raw material of following weight part: tungsten carbide powder 3-5, attapulgite powder 3-5, fly ash micro-sphere 5-25, aluminium-magnesium alloy powder 65-85, lithium powder 4-6, copper powder 4-6, polyvinyl alcohol 0.5-1.1, distilled water are appropriate;
The flyash aluminum matrix composite of a kind of easy processing of the present invention, be made up of following concrete steps:
(1) fly ash micro-sphere is immersed in 2-3 hour in the sulphuric acid soln of 10mol/l, then becomes neutral post-drying with distilled water wash surface, then utilized by copper metalikon atomised jet in spray gun to the fly ash micro-sphere surface of drying, to form one deck coating;
(2) just attapulgite powder soaks 2-3 hour in the hydrochloric acid soln of 0.1mol/l, be washed with distilled water to PH in neutral, then tungsten carbide powder and attapulgite powder are calcined 1-2 hour under 500-600 ° of C, again the fly ash micro-sphere of attapulgite powder, tungsten carbide powder, aluminium-magnesium alloy powder, lithium powder and step (1) is mixed 2-4 hour in mixer, and then add polyvinyl alcohol and appropriate distilled water mix and blend formation hygrometric state compound, add after continuing mechanically mixing 2-3 hour again and be pressed into prefabricated component, dry for standby;
(3) prefabricated component is placed in tube furnace, passes into nitrogen, temperature is increased to 300-500 ° of C, keep 0.5-1 hour, then temperature is increased to 550-580 ° of C, high temperature sintering 2-3 hour, furnace cooling.
The flyash aluminum matrix composite of a kind of easy processing of the present invention, in described aluminium-magnesium alloy powder, the weight percent of magnesium is 3%-5%.
Advantage of the present invention is: the present invention's acid makes specific surface area increase to fly ash micro-sphere surface corrosion process, add and the consistency of aluminum magnesium alloy and the tensile strength improving matrix material in copper coating process, and the lithium powder added in aluminum magnesium alloy and copper powder, reduce interface performance, enhance the wettability with fly ash micro-sphere, solve flyash dispersed bad in aluminum magnesium alloy, the problem of wettability difference, the tungsten carbide powder added enhances the thermal conductivity of matrix material, intensity and the performance such as wear-resisting, cohesiveness between the attapulgite powder strongthener added, and the weathering resistance of reinforced composite, the characteristic such as heat insulation and corrosion-resistant, working method of the present invention is simple, raw material sources are extensive, cost is low, processibility is good, be applicable to scale operation.
Specific embodiments
Below by specific examples, the present invention is described in detail.
A flyash aluminum matrix composite for easy processing, is made up of the raw material of following weight part (kilogram): tungsten carbide powder 3, attapulgite powder 5, fly ash micro-sphere 15, aluminium-magnesium alloy powder 70, lithium powder 4, copper powder 4, polyvinyl alcohol 0.58, distilled water are appropriate;
The flyash aluminum matrix composite of a kind of easy processing of the present invention, be made up of following concrete steps:
(1) fly ash micro-sphere to be immersed in the sulphuric acid soln of 10mol/l 2 hours, then to become neutral post-drying with distilled water wash surface, then copper is utilized metalikon in spray gun atomised jet to the fly ash micro-sphere surface of drying, formation one deck coating;
(2) just attapulgite powder soaks 3 hours in the hydrochloric acid soln of 0.1mol/l, be washed with distilled water to PH in neutral, then tungsten carbide powder and attapulgite powder are calcined 1 hour under 600 ° of C, again the fly ash micro-sphere of attapulgite powder, tungsten carbide powder, aluminium-magnesium alloy powder, lithium powder and step (1) is mixed 2 hours in mixer, and then add polyvinyl alcohol and appropriate distilled water mix and blend formation hygrometric state compound, continue mechanically mixing again to add after 2 hours and be pressed into prefabricated component, dry for standby;
(3) prefabricated component is placed in tube furnace, passes into nitrogen, temperature is increased to 500 ° of C, keep 1 hour, then temperature is increased to 570 ° of C, high temperature sintering 2 hours, furnace cooling.
The flyash aluminum matrix composite of a kind of easy processing of the present invention, in described aluminium-magnesium alloy powder, the weight percent of magnesium is 4%.
Flyash Wear Resistance of Aluminum Matrix Composite average specific base aluminum magnesium alloy in the present embodiment is high by 45.3%, tensile strength mean height 10.3%, unit elongation mean height 18.2%.
Claims (3)
1. the flyash aluminum matrix composite easily processed, it is characterized in that, be made up of the raw material of following weight part: tungsten carbide powder 3-5, attapulgite powder 3-5, fly ash micro-sphere 5-25, aluminium-magnesium alloy powder 65-85, lithium powder 4-6, copper powder 4-6, polyvinyl alcohol 0.5-1.1, distilled water are appropriate.
2. the flyash aluminum matrix composite of a kind of easy processing according to claim 1, is characterized in that, is made up of following concrete steps:
(1) fly ash micro-sphere is immersed in 2-3 hour in the sulphuric acid soln of 10mol/l, then becomes neutral post-drying with distilled water wash surface, then utilized by copper metalikon atomised jet in spray gun to the fly ash micro-sphere surface of drying, to form one deck coating;
(2) just attapulgite powder soaks 2-3 hour in the hydrochloric acid soln of 0.1mol/l, be washed with distilled water to PH in neutral, then tungsten carbide powder and attapulgite powder are calcined 1-2 hour under 500-600 ° of C, again the fly ash micro-sphere of attapulgite powder, tungsten carbide powder, aluminium-magnesium alloy powder, lithium powder and step (1) is mixed 2-4 hour in mixer, and then add polyvinyl alcohol and appropriate distilled water mix and blend formation hygrometric state compound, add after continuing mechanically mixing 2-3 hour again and be pressed into prefabricated component, dry for standby;
(3) prefabricated component is placed in tube furnace, passes into nitrogen, temperature is increased to 300-500 ° of C, keep 0.5-1 hour, then temperature is increased to 550-580 ° of C, high temperature sintering 2-3 hour, furnace cooling.
3. the flyash aluminum matrix composite of a kind of easy processing according to claim 1-2, is characterized in that, in described aluminium-magnesium alloy powder, the weight percent of magnesium is 3%-5%.
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| CN201510125226.9A CN104762513A (en) | 2015-03-23 | 2015-03-23 | Easily-processed fly ash aluminum-based composite material and preparation method thereof |
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| CN201510125226.9A CN104762513A (en) | 2015-03-23 | 2015-03-23 | Easily-processed fly ash aluminum-based composite material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109321772A (en) * | 2018-09-29 | 2019-02-12 | 镇江宝海船舶五金有限公司 | A kind of ship anchor chains aluminum matrix composite and preparation method thereof |
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| CN104152751A (en) * | 2014-07-07 | 2014-11-19 | 马鞍山市万鑫铸造有限公司 | Modified potassium titanate whisker contained aluminum-based composite heat radiating material for LED |
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- 2015-03-23 CN CN201510125226.9A patent/CN104762513A/en active Pending
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| CN102459671A (en) * | 2009-06-25 | 2012-05-16 | 法国肯联铝业 | Aluminium-copper-lithium alloy having improved mechanical strength and improved toughness |
| CN101956149A (en) * | 2010-10-08 | 2011-01-26 | 昆明理工大学 | Process for preparing carbon nano-tube-enhanced aluminum-based composite material |
| CN104141069A (en) * | 2014-07-07 | 2014-11-12 | 马鞍山市万鑫铸造有限公司 | Aluminum-based composite heat radiating material with low heat resistance for LED (Light Emitting Diode) |
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Application publication date: 20150708 |