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Black aluminum composite board and preparation method thereof

A technology of aluminum composite board and composite powder, which is applied in the field of solar energy, can solve the problems of attenuation of heat absorption efficiency and short life, and achieve the effects of simplifying the production process, no peeling and corrosion, and reducing manufacturing costs

Pending Publication Date: 2022-06-24
SHANDONG HEZE TONGYANG AMPEREX TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above technical problems, the present invention provides a black aluminum composite board and its preparation method. The black aluminum composite board is made of aluminum alloy powder and black composite powder through high-pressure pressing and high-temperature sintering, which effectively solves the Short service life and attenuation of heat absorption efficiency caused by thermal coating, but also have the advantages of corrosion resistance, aging resistance, light weight, good stability and high heat absorption efficiency

Method used

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  • Black aluminum composite board and preparation method thereof
  • Black aluminum composite board and preparation method thereof

Examples

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Effect test

Embodiment 1

[0032] A black aluminum composite plate, the weight percentage of each raw material is composed of: aluminum alloy 55%, graphite 11%, carbon black 16%, silicon carbide 8%, Fe 3 O 4 5%, MnO 2 3%, Co 2 O 3 2%.

[0033] The preparation steps of the black aluminum composite panel are as follows:

[0034] (1) High-energy ball milling of black inorganic powder, black metal oxide powder and aluminum alloy powder to nano-scale particles respectively;

[0035] (2) the above-mentioned nano-scale particle powder is uniformly mixed and stirred according to the above-mentioned proportion to form nano-black aluminum composite powder;

[0036] (3) Press the nano-black aluminum composite powder into a black aluminum composite panel blank in a vacuum hot pressing sintering furnace, and the pressing pressure is 15T;

[0037] (4) The vacuum hot pressing sintering furnace is heated to 500°C, so that the black aluminum composite panel blank is in a semi-melting and semi-solidified state u...

Embodiment 2

[0043] A black aluminum composite plate, the weight percentage of each raw material is composed of: aluminum alloy 45%, graphite 13%, carbon black 19%, silicon carbide 10%, Fe 3 O 4 5%, MnO 2 3%, CuO 2%, Co 2 O 3 3%.

[0044] The preparation steps of the black aluminum composite panel are as follows:

[0045] (1) High-energy ball milling of black inorganic powder, black metal oxide powder and aluminum alloy powder to nano-scale particles respectively;

[0046] (2) the above-mentioned nano-scale particle powder is uniformly mixed and stirred according to the above-mentioned proportion to form nano-black aluminum composite powder;

[0047] (3) Press the nano-black aluminum composite powder into a black aluminum composite panel blank in a vacuum hot pressing sintering furnace, and the pressing pressure is 1.8T;

[0048] (4) The vacuum hot pressing sintering furnace is heated to 520°C, so that the black aluminum composite slab blank is in a semi-melting and semi-solidifie...

Embodiment 3

[0051] A black aluminum composite plate, the weight percentage of each raw material is composed of: aluminum alloy 45%, graphite 13%, carbon black 19%, silicon carbide 10%, Fe 3 O 4 2%, MnO 2 1%, CuO 2%, Co 2 O 3 3%.

[0052] The preparation steps of the black aluminum composite panel are as follows:

[0053] (1) High-energy ball milling of black inorganic powder, black metal oxide powder and aluminum alloy powder to nano-scale particles respectively;

[0054] (2) the above-mentioned nano-scale particle powder is uniformly mixed and stirred according to the above-mentioned proportion to form nano-black aluminum composite powder;

[0055] (3) Pressing the nano-black aluminum composite powder into a black aluminum composite panel blank in a vacuum hot pressing sintering furnace, and the pressing pressure is 2T;

[0056] (4) The vacuum hot pressing sintering furnace is heated to 520°C, so that the black aluminum composite panel blank is in a semi-molten and semi-solidified...

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Abstract

According to the black aluminum composite board and the preparation method thereof, the preparation method of a traditional solar panel is changed, the black composite powder and the aluminum alloy powder are adopted as main raw materials to develop the black aluminum composite board which is completely black on the whole body, a black coating does not need to be sprayed on the surface of the board, and the black aluminum composite board is resistant to corrosion and free of aging; the manufacturing cost is reduced, the production process is simplified, and the defect that a heat absorption coating of a traditional solar panel is attenuated and aged year by year is overcome. The black aluminum composite board shows very strong spectrum absorptivity and sunlight absorptivity to sunlight, and the sunlight absorptivity is greater than or equal to 0.95. Accelerated aging experiments show that the sunlight absorptivity of the black aluminum composite board cannot be attenuated even if the black aluminum composite board is directly subjected to severe conditions such as corrosive seawater, acid rain and ultraviolet irradiation.

Description

technical field [0001] The invention belongs to the technical field of solar energy, and in particular relates to a black aluminum composite board and a preparation method thereof. Background technique [0002] The disclosure of information in this Background section is only for enhancement of understanding of the general background of the invention and should not necessarily be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art. [0003] At present, the industrialized, market-oriented and large-scale utilization of solar energy collection systems at home and abroad mainly include vacuum glass tube type solar energy collection systems and metal flat plate type solar energy collection systems. Both the above-mentioned solar collector systems need to be coated with a solar heat-absorbing coating. However, under the long-term sunlight exposure, in the vacuum glass tube type solar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F5/00C22C21/00C22C30/00C22C30/02B22F9/04B22F3/14
CPCB22F5/00C22C21/00C22C30/00C22C30/02B22F9/04B22F3/14B22F2009/043
Inventor 修大鹏陈永峰张新恩周吉学杨晓蕊
Owner SHANDONG HEZE TONGYANG AMPEREX TECH
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