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Method for raising bacteria-resistance and rust resisting performance for ordinary carbon steel

A common carbon steel, anti-rust performance technology, applied in surface treatment, to improve the anti-bacterial and anti-rust performance of ordinary carbon steel, can solve the problems that the anti-bacterial properties of ordinary carbon steel cannot be improved, the protective film has weak bonding force with the substrate, and is easy to fall off. Achieve the effect of strong environmental protection, good adhesion and high bonding strength

Inactive Publication Date: 2009-06-03
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the defects of the above-mentioned patents are: the general spraying or dipping process is adopted, so the bonding force between the formed protective film and the substrate is weak, easy to fall off, easy to wear; at the same time, the product of this invention cannot improve the antibacterial properties of ordinary carbon steel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment 1 is implemented under the following conditions of implementation and technical requirements:

[0026] The sample is ordinary carbon steel, and the surface of the sample is ground and mirror polished. Before ion plating, the surface of the sample is cleaned with deionized water and absolute ethanol, and dried to deposit a layer of 1.5-1.8 μm Cr-Ni film on the surface of ordinary carbon steel. Afterwards, metal ions were implanted on the surface of ordinary carbon steel on the ion implantation composite coating equipment (authorized announcement number: CN 1206386C) using the metal rod as the target source.

[0027] First, the ion plating parameters are as follows:

[0028] Element: Ni-Cr; working pressure: 5×10 -2 -8×10 -2 Pa; Negative bias voltage: 150-180V; Arc current: 100-110A;

[0029] Second, the ion implantation parameters are as follows:

[0030] Implantation element: Cu; Vacuum degree: 1×10 -3 —3×10 -3 pa; accelerating voltage: 30-35kV; i...

Embodiment 2

[0033] This embodiment 2 is implemented under the following conditions of implementation and technical requirements:

[0034] Take ordinary carbon steel products, the surface is ground and mirror polished. Before ion plating, the surface of the product is cleaned with deionized water and acetone, and dried at low temperature to deposit a layer of 2.5-3.0 μm Cr-Ni film on the surface of ordinary carbon steel. Afterwards, metal ions were implanted on the surface of ordinary carbon steel on the ion implantation composite coating equipment (authorized announcement number: CN 1206386C) using the metal rod as the target source.

[0035] First, the ion plating parameters are as follows:

[0036] Element: Ni-Cr; working pressure: 1×10 -1 ~2×10 -1 Pa; Negative bias voltage: 180~200V; Arc current: 110~120A;

[0037] Second, the ion implantation parameters are as follows:

[0038] Implantation element: Cu; Vacuum: 8 x 10 -4 ~1 x 10 -3 pa; accelerating voltage: 45~50kV; injection d...

Embodiment 3

[0041] This embodiment 3 is implemented under the following conditions of implementation and technical requirements:

[0042]Take ordinary carbon steel, the surface is ground and mirror polished. Before ion plating, the surface is cleaned with deionized water and absolute ethanol, and dried, and a layer of 2.0-2.5 μm Cr-Ni film is deposited on the surface of ordinary carbon steel. Afterwards, metal ions were implanted on the surface of ordinary carbon steel on the ion implantation composite coating equipment (authorized announcement number: CN1206386C) using the metal rod as the target source.

[0043] First, the ion plating parameters are as follows:

[0044] Element: Ni-Cr; working pressure: 1×10 -1 ~2×10 -1 pa; Negative bias voltage: 160~180V; Arc current: 110~120A;

[0045] Second, the ion implantation parameters are as follows:

[0046] Implantation element: Ag; Vacuum degree: 1×10 -3 ~3×10 -3 pa; accelerating voltage: 35 ~ 40kV; injection dose: 3 x 10 17 ~5x10 1...

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Abstract

The process of raising antibiotic and antirust performance of common steel product belongs to the field of material surface treating technology. The process includes: grinding and polishing the surface of steel product to mirror finishing, ion plating to deposit Ni-Cr film, and implanting Cu or Ag ion. The ion plating and the ion implanting make the common steel product possess both antibiotic performance and antirust performance. Thus treated steel may be used in door handle, kitchenware, household appliance, etc.

Description

technical field [0001] The invention relates to a surface treatment method in the technical field of metal materials, in particular to a method for improving the antibacterial and antirust performance of ordinary carbon steel. Background technique [0002] Ordinary carbon steel is widely used in many fields such as machinery manufacturing and construction, and is the largest and most important metal material in engineering. However, ordinary carbon steel is easy to corrode in the actual application process, and the corrosion continues to expand, and even forms holes, resulting in fracture. This is one of the main problems to be solved in the application of ordinary carbon steel. In addition, ordinary carbon steel is in a certain acid-alkaline environment, and it is easy to form micro-batteries on its surface, resulting in electrochemical corrosion. In short, the corrosion of ordinary carbon steel has always been one of the bottlenecks restricting its application. At presen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/22C23C14/32C23C14/48C23C14/54C23C14/14
Inventor 蔡珣安全长沈耀徐放
Owner SHANGHAI JIAO TONG UNIV
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