Rich rare earth stainless steel with excellent anti-bacterium capability

A stainless steel, rare earth-rich technology, applied in the field of antibacterial stainless steel, to achieve good mechanical properties and corrosion resistance, wide antibacterial range, and long-lasting antibacterial performance

Inactive Publication Date: 2007-03-07
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some of the above-mentioned rare earth products show that rare earth elements have antibacteri

Method used

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  • Rich rare earth stainless steel with excellent anti-bacterium capability
  • Rich rare earth stainless steel with excellent anti-bacterium capability
  • Rich rare earth stainless steel with excellent anti-bacterium capability

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Austenitic stainless steel castings with a diameter of Φ50 mm and different compositions were obtained by smelting the steelmaking raw materials with the composition ratio shown in Table 1 through a vacuum induction furnace. After solid solution treatment, the experimental samples were obtained by wire cutting, and the following tests were carried out respectively.

[0019] (1) Electron probe micro-area component distribution analysis

[0020] The rare earth-rich austenitic stainless steel test piece with A4 composition in the table was ground and polished by a metallographic grinder to make a polished sample, and the distribution of rare earth in the matrix was tested by Shimadzu EPMA1610 electron probe microanalyzer , as can be seen from the electron probe pictures, there are evenly distributed rare earth-rich micro-regions in the stainless steel matrix. See Figure 1 and Figure 2 for pictures of the electronic probe.

[0021] (2) Antibacterial experiment

[0022] Th...

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PUM

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Abstract

The invention discloses a rich earth antibiotic stainless steel, which contains 0.05-4.5% rare earth element, wherein the rare element is dispersed in the base evenly, which makes stainless steel possess antibiotic property.

Description

Technical field: [0001] The invention relates to antibacterial stainless steel, which can be applied to various places that are likely to cause cross-infection of people, such as the entrances and exits of public places, elevators, telephone booths, isolation railings of garbage bins, etc.; it can also be applied to household kitchen supplies and facilities, food industry-related Equipment and utensils, medical equipment and other fields. Background technique: [0002] With the development of social economy, people have more and more opportunities to communicate in public places, and the probability of being infected with various germs is also increasing. In recent years, antibacterial concepts and products have attracted more and more attention. [0003] Due to the unique electronic structure of rare earth elements (except for La, there are f electrons in the ground state electronic shell structure of atoms, although La has no f electrons, it is very similar to other La-se...

Claims

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Application Information

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IPC IPC(8): C22C38/00C22C38/40
Inventor 敬和民刘永前吴欣强杨柯姚治铭吕曼琪王智学李莉
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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