CN114653949B - Black aluminum composite board and preparation method thereof - Google Patents

Black aluminum composite board and preparation method thereof Download PDF

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Publication number
CN114653949B
CN114653949B CN202210354752.2A CN202210354752A CN114653949B CN 114653949 B CN114653949 B CN 114653949B CN 202210354752 A CN202210354752 A CN 202210354752A CN 114653949 B CN114653949 B CN 114653949B
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black
aluminum composite
powder
composite board
black aluminum
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CN114653949A (en
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修大鹏
陈永峰
张新恩
周吉学
杨晓蕊
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Shandong And Yangxin Energy Polytron Technologies Inc
New Material Institute of Shandong Academy of Sciences
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Shandong And Yangxin Energy Polytron Technologies Inc
New Material Institute of Shandong Academy of Sciences
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12Both compacting and sintering
    • B22F3/14Both compacting and sintering simultaneously
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00Making metallic powder or suspensions thereof
    • B22F9/02Making metallic powder or suspensions thereof using physical processes
    • B22F9/04Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C30/00Alloys containing less than 50% by weight of each constituent
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C30/00Alloys containing less than 50% by weight of each constituent
    • C22C30/02Alloys containing less than 50% by weight of each constituent containing copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00Making metallic powder or suspensions thereof
    • B22F9/02Making metallic powder or suspensions thereof using physical processes
    • B22F9/04Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • B22F2009/043Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by ball milling

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

The invention provides a black aluminum composite board and a preparation method thereof, which change the preparation method of the traditional solar panel, and research and develop the black aluminum composite board with full black whole body by adopting black composite powder and aluminum alloy powder as main raw materials, and the black aluminum composite board does not need to be sprayed with a black coating on the surface of the board, is corrosion-resistant and aging-resistant, reduces the manufacturing cost, simplifies the production process, and overcomes the defect of year-by-year attenuation aging of the heat absorption coating of the traditional solar panel. The black aluminum composite board has strong spectral absorptivity and sunlight absorptivity to sunlight, and the sunlight absorptivity is more than or equal to 0.95. The accelerated aging test shows that the sunlight absorptivity of the black aluminum composite board can not be attenuated even if the black aluminum composite board is directly subjected to severe conditions such as corrosive seawater, acid rain, ultraviolet irradiation and the like.

Description

Black aluminum composite board and preparation method thereof
Technical Field
The invention belongs to the technical field of solar energy, and particularly relates to a black aluminum composite board and a preparation method thereof.
Background
The disclosure of this background section is only intended to increase the understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art already known to those of ordinary skill in the art.
The solar heat collection system which is industrialized, marketed and utilized in large scale at home and abroad at present mainly comprises a vacuum glass tube type solar heat collection system, a metal flat plate type solar heat collection system and the like. In the two solar heat collection systems, a solar heat absorption coating is required to be coated, however, in the vacuum glass tube type solar heat collection system, the vacuum degree of the vacuum glass tube is reduced under the long-term irradiation of sunlight, the efficiency of the solar heat absorption coating is reduced, the heat collection efficiency is reduced year by year, and the service life is about 10 years; in the metal flat-plate solar heat collection system, the sunlight absorbing coating is easy to age and fall off, the metal material is easy to corrode, and the service life is about 10 years; in recent years, a novel flat-plate solar heat collection system, namely a ceramic solar plate heat collection system, is developed in China, wherein the ceramic solar plate is an all-ceramic product formed by sintering at a high temperature of 1200 ℃ by adopting a traditional ceramic manufacturing process, the sunlight absorptivity is 0.92-0.93, and the ceramic solar plate has ceramic material universality and has the advantages of no corrosion, no aging, stable efficiency and no attenuation; its advantages are high quality, brittleness, high heat stability, high water absorption, low freezing resistance in winter and high damage rate.
How to prepare the solar heat absorbing plate with simple process operation and excellent photo-thermal conversion performance, and solve the defect of year-by-year attenuation and aging of the existing solar heat absorbing plate, and the prior art is still difficult.
Disclosure of Invention
In order to solve the technical problems, the invention provides the black aluminum composite board and the preparation method thereof, and the black aluminum composite board is formed by high-pressure pressing and high-temperature sintering of aluminum alloy powder and black composite powder, so that the problems of short service life, heat absorption efficiency attenuation and the like caused by coating a solar heat absorption coating are effectively solved, and meanwhile, the black aluminum composite board has the advantages of corrosion resistance, aging resistance, light weight, good stability, high heat absorption efficiency and the like.
In order to achieve the technical purpose, the technical scheme provided by the invention is as follows:
a black aluminum composite board is formed by high-pressure pressing and high-temperature sintering of aluminum alloy powder and black composite powder, wherein the black composite powder consists of black inorganic powder and black metal oxide powder.
Further, the black aluminum composite board comprises the following raw materials in percentage by weight: 45-55% of aluminum alloy powder, 35-42% of black inorganic powder and 3-20% of black metal oxide powder.
Further, the black inorganic powder includes graphite, carbon black, silicon carbide, and the like.
Furthermore, the graphite is preferably high-thermal-conductivity graphite with the thermal conductivity coefficient more than or equal to 1000W/M.K; the carbon black is preferably high-absorption-ratio carbon black with the reflectivity less than or equal to 5 percent; the preferable microhardness of the silicon carbide is more than or equal to 3000kg/mm 2 High strength and toughness silicon carbide.
Further, the black metal oxide powder includes Fe 3 O 4 、MnO 2 、CuO、Co 2 O 3 One or more of the following.
Further, the aluminum alloy powder is preferably magnesium-silicon 6 series corrosion-resistant aluminum alloy.
Further, in the black inorganic powder, graphite is 11 to 13%, carbon black is 16 to 19%, and silicon carbide is 8 to 10%.
Further, in the black metal oxide powder, fe 3 O 4 2~10%、MnO 2 1~8%、 CuO 0~7%、Co 2 O 3 0~5%。
The preparation method of the black aluminum composite board comprises the following steps:
(1) Respectively ball-milling black inorganic powder, black metal oxide powder and aluminum alloy powder to nano-scale particles;
(2) Uniformly mixing and stirring the nano-scale particle powder according to a proportion to obtain nano black aluminum composite powder;
(3) Pressing the nano black aluminum composite powder into a black aluminum composite board biscuit in a vacuum hot-pressing sintering furnace;
(4) Heating the vacuum hot-pressing sintering furnace to enable the black aluminum composite board biscuit to be in a semi-melting and semi-solidifying state at high temperature and high pressure;
(5) And after heat preservation for a certain time, cooling to room temperature and releasing pressure to prepare the black aluminum composite board.
Further, in the step (3), the pressure range during pressing is 15-20T;
further, in the step (4), the temperature is raised to 500-520 ℃ for 1-2 hours;
further, in the step (5), the heat preservation time is 30-60min.
The thickness of the black aluminum composite board can be as low as 0.5mm.
The semi-melting and semi-solidifying state can ensure that the aluminum alloy and the black composite powder are fully combined, and ensure that the aluminum alloy cannot flow, so that the black composite powder is unevenly distributed in the aluminum melt, and the performance of the plate is affected.
Compared with the prior art, the invention has the following obvious advantages:
the invention changes the preparation method of the traditional solar panel, develops the black aluminum composite panel with full black whole body by adopting black composite powder and aluminum alloy powder as main raw materials, does not need to spray a black coating on the surface of the panel, is corrosion-resistant and aging-resistant, reduces the manufacturing cost, simplifies the production process, and solves the defect that the heat-absorbing coating of the traditional solar panel is attenuated and aged year by year. Through detection, the sunlight absorptivity of the black aluminum composite board is more than or equal to 0.95, and the black aluminum composite board has strong spectrum absorptivity and sunlight absorptivity. Through detection of a national energy-saving product quality supervision and inspection center, the accelerated aging test of salt fog resistance and the like for 72 hours is qualified, and even if the accelerated aging test is directly subjected to severe conditions such as corrosive seawater, acid rain, ultraviolet irradiation and the like, the sunlight absorptivity of the black aluminum composite board can not be attenuated, and the sample has no crack, no foaming, no peeling and corrosion phenomena.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
Fig. 1 is a graph of solar light absorptance test.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Example 1:
a black aluminum composite board comprises the following raw materials in percentage by weight: 55% of aluminum alloy, 11% of graphite, 16% of carbon black, 8% of silicon carbide and Fe 3 O 4 5%、MnO 2 3%、Co 2 O 3 2%。
The preparation method of the black aluminum composite board comprises the following steps:
(1) Respectively ball-milling black inorganic powder, black metal oxide powder and aluminum alloy powder to nano-scale particles;
(2) Uniformly mixing and stirring the nano-scale particle powder according to the proportion to obtain nano black aluminum composite powder;
(3) Pressing the nano black aluminum composite powder into a black aluminum composite board biscuit in a vacuum hot-pressing sintering furnace, wherein the pressing pressure is 15T;
(4) Heating the vacuum hot-pressed sintering furnace to 500 ℃ to enable the black aluminum composite board biscuit to be in a semi-melting and semi-solidifying state at high temperature and high pressure, wherein the heating time is 1.5h;
(5) And (3) after heat preservation for 30min, cooling to room temperature and releasing pressure to prepare the black aluminum composite board.
The sunlight absorptivity curve of the black aluminum composite plate is shown in figure 1 through detection by the national solar collector quality supervision and inspection center. The black aluminum composite board has strong spectral absorptivity and sunlight absorptivity to sunlight, and the sunlight absorptivity is more than or equal to 0.95. Through detection of a national energy-saving product quality supervision and inspection center, the accelerated aging test of salt fog resistance and the like for 72 hours is qualified, and even if the accelerated aging test is directly subjected to severe conditions such as corrosive seawater, acid rain, ultraviolet irradiation and the like, the sunlight absorptivity of the black aluminum composite board can not be attenuated, and the sample has no crack, no foaming, no peeling and corrosion phenomena. The specific detection results are shown in Table 1.
Table 1 black aluminum composite panel Performance test results
Example 2:
a black aluminum composite board comprises the following raw materials in percentage by weight: 45% of aluminum alloy, 13% of graphite, 19% of carbon black, 10% of silicon carbide and Fe 3 O 4 5%、MnO 2 3%、CuO 2%、Co 2 O 3 3%。
The preparation method of the black aluminum composite board comprises the following steps:
(1) Respectively ball-milling black inorganic powder, black metal oxide powder and aluminum alloy powder to nano-scale particles;
(2) Uniformly mixing and stirring the nano-scale particle powder according to the proportion to obtain nano black aluminum composite powder;
(3) Pressing the nano black aluminum composite powder into a black aluminum composite board biscuit in a vacuum hot-pressing sintering furnace, wherein the pressing pressure is 1.8T;
(4) Heating the vacuum hot-pressing sintering furnace to 520 ℃ to enable the black aluminum composite board biscuit to be in a semi-melting and semi-solidifying state at high temperature and high pressure, wherein the heating time is 1h;
(5) And (5) after heat preservation for 40min, cooling to room temperature and releasing pressure to prepare the black aluminum composite board.
Example 3:
a black aluminum composite board comprises the following raw materials in percentage by weight: 45% of aluminum alloy, 13% of graphite, 19% of carbon black, 10% of silicon carbide and Fe 3 O 4 2%、MnO 2 1%、CuO 2%、Co 2 O 3 3%。
The preparation method of the black aluminum composite board comprises the following steps:
(1) Respectively ball-milling black inorganic powder, black metal oxide powder and aluminum alloy powder to nano-scale particles;
(2) Uniformly mixing and stirring the nano-scale particle powder according to the proportion to obtain nano black aluminum composite powder;
(3) Pressing the nano black aluminum composite powder into a black aluminum composite board biscuit in a vacuum hot-pressing sintering furnace, wherein the pressing pressure is 2T;
(4) Heating the vacuum hot-pressing sintering furnace to 520 ℃ to enable the black aluminum composite board biscuit to be in a semi-melting and semi-solidifying state at high temperature and high pressure, wherein the heating time is 2h;
(5) And (3) after heat preservation for 60min, cooling to room temperature and releasing pressure to prepare the black aluminum composite board.
Finally, it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited to the above-mentioned embodiments, but may be modified or substituted for some of them by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention. While the foregoing describes the embodiments of the present invention, it should be understood that the present invention is not limited to the embodiments, and that various modifications and changes can be made by those skilled in the art without any inventive effort.

Claims (3)

1. A preparation method of a black aluminum composite board is characterized in that,
the black aluminum composite plate is formed by high-pressure pressing and high-temperature sintering of aluminum alloy powder and black composite powder, wherein the black composite powder consists of black inorganic powder and black metal oxide powder;
the black inorganic powder is one or more of graphite, carbon black and silicon carbide;
the ferrous metal oxide powder includes Fe 3 O 4 、MnO 2 、CuO、Co 2 O 3 One or more of the following;
the preparation method comprises the following steps:
(1) Respectively ball-milling black inorganic powder, black metal oxide powder and aluminum alloy powder to nano-scale particles;
(2) Uniformly mixing and stirring the nano-scale particle powder according to a proportion to obtain nano black aluminum composite powder; the black aluminum composite board comprises the following raw materials in percentage by weight: 45-55% of aluminum alloy powder, 35-42% of black inorganic powder and 3-20% of black metal oxide powder;
(3) Pressing the nano black aluminum composite powder into a black aluminum composite board biscuit in a vacuum hot-pressing sintering furnace;
(4) Heating the vacuum hot-pressing sintering furnace to enable the black aluminum composite board biscuit to be in a semi-melting and semi-solidifying state at high temperature and high pressure;
(5) After heat preservation for a certain time, cooling to room temperature and releasing pressure to prepare the black aluminum composite board;
specifically, in the step (3), the pressure range during pressing is 15-20T; in the step (4), heating to 500-520 ℃ for 1-2 h; in the step (5), the heat preservation time is 30-60min.
2. The method for preparing the black aluminum composite panel according to claim 1, wherein the graphite is high-thermal-conductivity graphite with a thermal conductivity coefficient of more than or equal to 1000W/M.K; the carbon black is high absorption ratio carbon black with reflectivity less than or equal to 5%; the silicon carbide has microhardness of more than or equal to 3000kg/mm 2 High strength and toughness silicon carbide.
3. The method for producing a black aluminum composite panel according to claim 1, wherein the aluminum alloy powder is magnesium-silicon 6 series corrosion-resistant aluminum alloy.
CN202210354752.2A 2022-04-06 2022-04-06 Black aluminum composite board and preparation method thereof Active CN114653949B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85100509A (en) * 1985-04-01 1986-08-13 中国科学院上海硅酸盐研究所 Black aluminium coating with spectrum selective absorption and manufacture method
JP2001099497A (en) * 1999-09-30 2001-04-13 Nisshin Steel Co Ltd Solar heat collecting plate
CN2847113Y (en) * 2004-12-29 2006-12-13 余太辽 Photoelectric complementary plate combined solar energy heating water heater
CN102054883A (en) * 2010-03-30 2011-05-11 泸溪县金源粉体材料有限责任公司 Aluminum paste used for production of silicon solar cell aluminum paste and preparation method thereof
CN105924170A (en) * 2016-04-15 2016-09-07 武汉理工大学 Si-SiC substrate material and preparation method thereof
CN108425027A (en) * 2018-04-24 2018-08-21 山东省科学院新材料研究所 A kind of nano black porcelain aluminium alloy and preparation method thereof
KR20180115115A (en) * 2017-04-12 2018-10-22 유한회사 원진알미늄 Manufacturing Method of Aluminum-Silicon Carbide Using By-product of Cutting Process

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85100509A (en) * 1985-04-01 1986-08-13 中国科学院上海硅酸盐研究所 Black aluminium coating with spectrum selective absorption and manufacture method
JP2001099497A (en) * 1999-09-30 2001-04-13 Nisshin Steel Co Ltd Solar heat collecting plate
CN2847113Y (en) * 2004-12-29 2006-12-13 余太辽 Photoelectric complementary plate combined solar energy heating water heater
CN102054883A (en) * 2010-03-30 2011-05-11 泸溪县金源粉体材料有限责任公司 Aluminum paste used for production of silicon solar cell aluminum paste and preparation method thereof
CN105924170A (en) * 2016-04-15 2016-09-07 武汉理工大学 Si-SiC substrate material and preparation method thereof
KR20180115115A (en) * 2017-04-12 2018-10-22 유한회사 원진알미늄 Manufacturing Method of Aluminum-Silicon Carbide Using By-product of Cutting Process
CN108425027A (en) * 2018-04-24 2018-08-21 山东省科学院新材料研究所 A kind of nano black porcelain aluminium alloy and preparation method thereof

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