CN104762511A - Fly ash aluminium-based composite material with high antistatic property and preparation method thereof - Google Patents
Fly ash aluminium-based composite material with high antistatic property and preparation method thereof Download PDFInfo
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- CN104762511A CN104762511A CN201510125223.5A CN201510125223A CN104762511A CN 104762511 A CN104762511 A CN 104762511A CN 201510125223 A CN201510125223 A CN 201510125223A CN 104762511 A CN104762511 A CN 104762511A
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Abstract
The invention discloses a fly ash aluminium-based composite material with high antistatic property, which comprises the following raw materials by weight: 4-6 parts of silicon dioxide sol, 7-10 parts of silicon carbide ceramic slag 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 silica sol enhances caking property between reinforcements, and increases refractiveness, high temperature resistance, aging resistance and antistatic performance of the composite material, the added silicon carbide ceramic slag powder can be reused and enhances the intensity and hardness of the composite material. The fly ash aluminium-based composite material has the advantages of energy saving and environmental protection, greatly increases the refuse utilization rate, reduces the social resource, and brings great economic benefit and social benefit.
Description
Technical field
The present invention relates to technical field of new material preparation, particularly relate to high flyash aluminum matrix composite of a kind of static resistance 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 requirements such as fiber plant base humidity, antistatic, high strength, 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 high flyash aluminum matrix composite of a kind of static resistance and preparation method thereof.
In order to realize object of the present invention, the present invention is by following scheme implementation:
The flyash aluminum matrix composite that static resistance is high, is made up of the raw material of following weight part: silicon dioxide gel 4-6, silicon carbide ceramics ground-slag 7-10, 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 that a kind of static resistance of the present invention is high, 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) silicon carbide ceramics ground-slag is calcined 1-2 hour under 500-600 ° of C, again the fly ash micro-sphere of silicon carbide ceramics ground-slag, silicon dioxide gel, 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 that a kind of static resistance of the present invention is high, 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 silicon dioxide gel added enhances the cohesiveness between reinforcement, and improve the resistivity against fire of matrix material, high temperature resistant, the performance of the aspect such as ageing-resistant and antistatic, the silicon carbide ceramics ground-slag utilization of waste material added, enhance intensity and the hardness of matrix material, energy-conserving and environment-protective of the present invention, greatly improve salvage value, reduce social resources, bring huge economic benefit and social benefit.
Specific embodiments
Below by specific examples, the present invention is described in detail.
The flyash aluminum matrix composite that static resistance is high, is made up of the raw material of following weight part (kilogram): silicon dioxide gel 5, silicon carbide ceramics ground-slag 7, fly ash micro-sphere 16, aluminium-magnesium alloy powder 65, lithium powder 4, copper powder 4, polyvinyl alcohol 0.76, distilled water are appropriate;
The flyash aluminum matrix composite that a kind of static resistance of the present invention is high, 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) silicon carbide ceramics ground-slag is calcined 1 hour under 600 ° of C, again the fly ash micro-sphere of silicon carbide ceramics ground-slag, silicon dioxide gel, 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 that a kind of static resistance of the present invention is high, 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 52.3%, tensile strength mean height 11.7%, unit elongation mean height 16.8%.
Claims (3)
1. the flyash aluminum matrix composite that a static resistance is high, it is characterized in that, be made up of the raw material of following weight part: silicon dioxide gel 4-6, silicon carbide ceramics ground-slag 7-10, 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 that a kind of static resistance is high 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) silicon carbide ceramics ground-slag is calcined 1-2 hour under 500-600 ° of C, again the fly ash micro-sphere of silicon carbide ceramics ground-slag, silicon dioxide gel, 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 that a kind of static resistance is high 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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| Application Number | Priority Date | Filing Date | Title |
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| CN201510125223.5A CN104762511A (en) | 2015-03-23 | 2015-03-23 | Fly ash aluminium-based composite material with high antistatic property and preparation method thereof |
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| CN201510125223.5A CN104762511A (en) | 2015-03-23 | 2015-03-23 | Fly ash aluminium-based composite material with high antistatic property and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108754204A (en) * | 2018-06-01 | 2018-11-06 | 广东技术师范学院天河学院 | SiC reinforcement aluminum-base composite ceramic material and the preparation method and application thereof |
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| CN1104568A (en) * | 1993-11-24 | 1995-07-05 | 哈尔滨工业大学 | Manufacture of uncontinuously enhanced aluminum based composite material |
| CN1339417A (en) * | 2001-09-21 | 2002-03-13 | 谭又亭 | Process for producing hollow micro bead/aluminium based composite material |
| CN101012518A (en) * | 2007-02-12 | 2007-08-08 | 哈尔滨工业大学 | Preparation method of aluminium-based porous composite material with micro confined hole |
| CN104073675A (en) * | 2014-07-01 | 2014-10-01 | 广东省工业技术研究院(广州有色金属研究院) | Pretreatment method for silicon carbide granules for aluminum-based composite material |
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2015
- 2015-03-23 CN CN201510125223.5A patent/CN104762511A/en active Pending
Patent Citations (4)
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| CN1104568A (en) * | 1993-11-24 | 1995-07-05 | 哈尔滨工业大学 | Manufacture of uncontinuously enhanced aluminum based composite material |
| CN1339417A (en) * | 2001-09-21 | 2002-03-13 | 谭又亭 | Process for producing hollow micro bead/aluminium based composite material |
| CN101012518A (en) * | 2007-02-12 | 2007-08-08 | 哈尔滨工业大学 | Preparation method of aluminium-based porous composite material with micro confined hole |
| CN104073675A (en) * | 2014-07-01 | 2014-10-01 | 广东省工业技术研究院(广州有色金属研究院) | Pretreatment method for silicon carbide granules for aluminum-based composite material |
Non-Patent Citations (5)
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| 孟宪云等: "半固态复合熔铸过程中SiC与2A11 合金的润湿性", 《中国有色金属学报》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108754204A (en) * | 2018-06-01 | 2018-11-06 | 广东技术师范学院天河学院 | SiC reinforcement aluminum-base composite ceramic material and the preparation method and application thereof |
| CN108754204B (en) * | 2018-06-01 | 2020-06-05 | 广东技术师范学院天河学院 | Silicon carbide reinforced aluminum-based composite ceramic material and preparation method and application thereof |
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