CN104762571A - Fly ash aluminium-based composite material with good anti-breaking property and preparation method thereof - Google Patents
Fly ash aluminium-based composite material with good anti-breaking property and preparation method thereof Download PDFInfo
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- CN104762571A CN104762571A CN201510125227.3A CN201510125227A CN104762571A CN 104762571 A CN104762571 A CN 104762571A CN 201510125227 A CN201510125227 A CN 201510125227A CN 104762571 A CN104762571 A CN 104762571A
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Abstract
The invention discloses a fly ash aluminium-based composite material with good anti-breaking property, which comprises the following raw materials by weight part: 2-3 parts of potassium titanate whisker, 5-8 parts of molybdenum sulfide, 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. The added potassium titanate whisker enhances hardness, intensity and anti-fracture toughness performance of the composite material, and the added molybdenum sulfide enhances processing fluidity. The fly ash aluminium-based composite material has the advantages of simple technology and low cost of raw materials, is adapted to large scale industrial production, and has good popularization and application value.
Description
Technical field
The present invention relates to technical field of new material preparation, particularly relate to good flyash aluminum matrix composite of a kind of resistance to fracture 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, Resisting fractre toughness, 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 good flyash aluminum matrix composite of a kind of resistance to fracture 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 resistance to fracture is good, is made up of the raw material of following weight part: potassium titanate crystal whisker 2-3, moly-sulfide 5-8, 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 resistance to fracture of the present invention is good, 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 potassium titanate crystal whisker and moly-sulfide calcine 1-2 hour under 500-600 ° of C, again the fly ash micro-sphere of potassium titanate crystal whisker, moly-sulfide, 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 resistance to fracture of the present invention is good, 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 potassium titanate crystal whisker added enhances the hardness of matrix material, the performance of the aspects such as intensity and Resisting fractre toughness, the moly-sulfide added enhances processing fluidity, present invention process is simple, the prices of raw and semifnished materials are cheap, be suitable for large-scale industrial production, there is good application value.
Specific embodiments
Below by specific examples, the present invention is described in detail.
The flyash aluminum matrix composite that resistance to fracture is good, is made up of the raw material of following weight part (kilogram): potassium titanate crystal whisker 2, moly-sulfide 5, fly ash micro-sphere 15, aluminium-magnesium alloy powder 70, lithium powder 4, copper powder 5, polyvinyl alcohol 0.5, distilled water are appropriate;
The flyash aluminum matrix composite that a kind of resistance to fracture of the present invention is good, 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 potassium titanate crystal whisker and moly-sulfide are calcined 1 hour under 600 ° of C, again the fly ash micro-sphere of potassium titanate crystal whisker, moly-sulfide, 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 resistance to fracture of the present invention is good, 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 47.3%, tensile strength mean height 13.2%, unit elongation mean height 14.3%.
Claims (3)
1. the flyash aluminum matrix composite that a resistance to fracture is good, it is characterized in that, be made up of the raw material of following weight part: potassium titanate crystal whisker 2-3, moly-sulfide 5-8, 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 resistance to fracture is good 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 potassium titanate crystal whisker and moly-sulfide calcine 1-2 hour under 500-600 ° of C, again the fly ash micro-sphere of potassium titanate crystal whisker, moly-sulfide, 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 resistance to fracture is good according to claim 1-2, is characterized in that, in described aluminium-magnesium alloy powder, the weight percent of magnesium is 3%-5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510125227.3A CN104762571A (en) | 2015-03-23 | 2015-03-23 | Fly ash aluminium-based composite material with good anti-breaking property and preparation method thereof |
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| CN201510125227.3A CN104762571A (en) | 2015-03-23 | 2015-03-23 | Fly ash aluminium-based composite material with good anti-breaking property and preparation method thereof |
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| CN104762571A true CN104762571A (en) | 2015-07-08 |
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| CN201510125227.3A Pending CN104762571A (en) | 2015-03-23 | 2015-03-23 | Fly ash aluminium-based composite material with good anti-breaking property and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102391834A (en) * | 2011-09-20 | 2012-03-28 | 盐城工学院 | Preparation method for high temperature-resistant automobile brake lining |
| CN103482920A (en) * | 2013-09-11 | 2014-01-01 | 上海欧墅节能科技有限公司 | Method for manufacturing environment-friendly and energy-saving composite board |
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2015
- 2015-03-23 CN CN201510125227.3A patent/CN104762571A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102391834A (en) * | 2011-09-20 | 2012-03-28 | 盐城工学院 | Preparation method for high temperature-resistant automobile brake lining |
| CN103482920A (en) * | 2013-09-11 | 2014-01-01 | 上海欧墅节能科技有限公司 | Method for manufacturing environment-friendly and energy-saving composite board |
Non-Patent Citations (1)
| Title |
|---|
| 曹银南: "粉煤灰/Al合金复合材料的制备及摩擦磨损性能研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
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Application publication date: 20150708 |