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Silver-containing anti-bacteria copper alloy and preparation method thereof

An antibacterial copper and alloy technology, applied in the field of material science, can solve the problems of many harmful components and complicated preparation process, and achieve the effects of high corrosion resistance, no pollution to the environment, and large market application potential

Inactive Publication Date: 2018-11-20
FUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

M. Murray and M. Saho of Sloan Valve Company in the United States invented a white antibacterial copper alloy, which contains more than 60wt% copper and various alloying elements: nickel, zinc, manganese, antimony, tin, aluminum, Sulfur, iron, lead, etc., finally make the copper alloy present a white luster and have antibacterial properties, but because its composition contains more metal elements, the preparation process is more complicated, and there are more harmful ingredients to the human body

Method used

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  • Silver-containing anti-bacteria copper alloy and preparation method thereof
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Embodiment Construction

[0020] In order to make the content of the present invention easier to understand, the technical solutions of the present invention will be further described below in conjunction with specific embodiments, but the present invention is not limited thereto.

[0021] Table 1 Chemical composition content list

[0022]

[0023] (1) Weigh the raw materials copper and silver according to the ratio in Table 1, clean and dry them in advance, and polish the raw copper with 150-3000 mesh sandpaper in advance to remove the scale;

[0024] (2) Fill the intermediate frequency vacuum induction melting furnace with oxygen-free copper with a purity ≥ 99.9% to less than 80% of the crucible height, and make the upper and lower tight to prevent "bridging" phenomenon; then fill the melting pool with pure ≥99.999% argon to keep the pressure in the furnace at 0.75-1 atm to prevent oxidation of copper alloy and reduce volatilization loss of volatile elements;

[0025] (3) Increase the power of th...

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Abstract

The invention discloses silver-containing anti-bacteria copper alloy and a preparation method thereof and belongs to the technical field of metal materials. Based on the fact that the sum of the weight percentages is 100%, the silver-containing anti-bacteria copper alloy comprises, by weight percentage, 0.07%-0.15% of silver, 99.75%-99.92% of copper and 0.01%-0.1% of other impurities; and the silver-containing anti-bacteria copper alloy is prepared through a vacuum induction smelting method. The preparation technology of the silver-containing anti-bacteria copper alloy is simple and easy to implement; the mechanical performance and corrosion resistance are excellent; the obvious anti-bacteria performance advantage is achieved compared with oxygen-free copper; the anti-bacteria effect is greater than 99.9% for escherichia coli and staphylococcus aureus; the effect is remarkable; and the remarkable economic and social benefits are achieved.

Description

technical field [0001] The invention belongs to the field of material science, and in particular relates to a silver-containing antibacterial copper alloy and a preparation method thereof. Background technique [0002] With the improvement of people's living standards, the health and safety issues of antibacterial, antibacterial and antiviral have become a matter of great concern in today's society. The frequent outbreaks of vicious events caused by germs have made it an urgent need for the development of today's society to develop green, efficient and low-cost antibacterial metal materials. [0003] Copper alloys are widely used in (1) electrified railways, urban transportation; (2) kitchen utensils, food processing industries; (3) sewage and water treatment purification facilities; (4) marine ships and other fields, playing an important role in social development role. If it can be endowed with excellent antibacterial function without reducing its original excellent comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/02
CPCC22C9/00C22C1/02
Inventor 向红亮吴标
Owner FUZHOU UNIV
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