A heat treatment type antibacterial aluminum alloy and heat treatment method thereof
An aluminum alloy and solution treatment technology, applied in the field of antibacterial materials and aluminum alloys, can solve the problems of high Ag, restricting practical feasibility, and high price of Ag elements.
Active Publication Date: 2019-01-25
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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Problems solved by technology
These patents mainly utilize the strong bactericidal effect of Ag, but there are two main problems. One is that the content of Ag is designed to be relatively high, and the highest reaches 3%.
However, the strong volatility of the Ag element itself in the actual production process makes it difficult to control the yield.
The second is the high price of Ag element, so that among all the existing industrially produced metal materials, there is no commercial grade of metal alloy containing Ag, which seriously restricts its practical feasibility
Therefore, its corrosion resistance is poor
Method used
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Embodiment Construction
[0021] The present invention is described in detail below in conjunction with embodiment.
[0022] The present invention is a heat-treated antibacterial aluminum alloy, and its preparation process is as follows: according to the chemical composition range set by the antibacterial aluminum alloy of the present invention, it is melted in a crucible resistance furnace and cast into a metal ingot, and the smelting example 1-6 and comparative example 1- 9 aluminum alloy, its chemical composition is shown in Table 1. The heat treatment process of the sample of embodiment and comparative example all adopts following mode:
[0023] First, solid solution at 560°C for 2 hours, water cooling; then, heat at 150°C for 24 hours, directly raise the temperature to 190°C for 30 minutes, and water cool to room temperature.
[0024] The aluminum alloy chemical composition (wt,%) of table 1 embodiment and comparative example
[0025]
[0026]
[0027] 1. Mechanical properties
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Abstract
The invention discloses a heat treatment type antibacterial aluminum alloy and a heat treatment method thereof, and belongs to the technical field of antibacterial materials and aluminum alloy. The aluminum alloy comprises the chemical compositions of, by weight, 0.8-1.5% of Mg, 0.2-0.5% of Si, 0.8-1.6% of Cu and the balance Al, wherein the content of impurity elements in the alloy meets relevant requirements of the national standard for the aluminum alloy. The antibacterial aluminum alloy novel material provided by the invention has a unique antibacterial function, and meanwhile, through reasonable two-stage ageing treatment, the advantage of good corrosion resistance of the aluminum alloy can be maintained. By adoption of the antibacterial aluminum alloy, the pathogenic risk caused by bacterial infection during application of existing aluminum alloy products can be remarkably reduced, the antibacterial aluminum alloy can be widely applied to building profiles, irrigation pipes, and extruded materials used for vehicles, racks, furniture, railings and the like.
Description
technical field [0001] The invention relates to the technical field of antibacterial materials and aluminum alloys, in particular to a heat-treated antibacterial aluminum alloy and a heat treatment method thereof. extrusion material. Background technique [0002] Due to its light weight, corrosion resistance, good formability and other advantages, aluminum alloys are widely used in various fields and occasions such as food, chemistry, shipbuilding, and architectural decoration. With the increasingly harsh living environment of people, the incidents caused by bacterial infection are increasing, which has attracted great attention from the society. However, the traditional aluminum alloy itself does not have the functions of sterilization and antibacterial. Therefore, the development of an aluminum alloy with its own antibacterial function will greatly cater to the growing demand of the market. [0003] Invention patents with application numbers 201110174210.9 and 201111017...
Claims
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IPC IPC(8): C22C21/08C22F1/047
CPCC22C21/08C22F1/047
Inventor 杨春光杨柯赵金龙席通
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI