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Process for preparing antibacterial stainless steel by using binary ion-implantation method

An antibacterial stainless steel, ion implantation technology, applied in the direction of ion implantation plating, metal material coating process, coating, etc., can solve the problem of difficult to prepare cost antibacterial stainless steel, achieve good broad-spectrum antibacterial properties, low cost, and production technology simple effect

Inactive Publication Date: 2006-11-22
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to prepare relatively cheap antibacterial stainless steel by single ion implantation (infiltration) method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1, a kind of martensitic antibacterial stainless steel prepared by Cu+Ag binary ion implantation method

[0020] (1) The base material is martensitic stainless steel, and the mass percentage of its chemical composition is: C is 0.08-0.45, Cr is 12-14, Si is ≤0.60, Mn is ≤0.80, Cu is ≤0.10, and the rest is Fe;

[0021] (2) Implant Cu and Ag ions on the stainless steel substrate on the ion implanter, and the pressure of the vacuum chamber is 1.30×10 -4 ~1.35×10 -4 Pa, Cu ion and Ag ion implantation energy is 60~100keV, Cu ion and Ag ion implantation dose is 5×10 16 ~5×10 17 ions / cm 2 , the ion beam current density is 20~60μA / cm 2 , the injection time is 30 to 150 minutes, and the Cu and Ag content of the injection layer is 1.5 to 20 wt% of the mass of the injection layer;

[0022] (3) Antibacterial treatment (vacuum aging treatment), the treatment temperature is 400-600° C., and the time is 2-6 hours.

Embodiment 2

[0023] Embodiment 2, a kind of martensitic antibacterial stainless steel prepared by Ag+Zn binary ion implantation method

[0024] (1) The base material is martensitic stainless steel, and the mass percentage of its chemical composition is: C is 0.08-0.45, Cr is 12-14, Si is ≤0.60, Mn is ≤0.80, Cu is ≤0.10, and the rest is Fe;

[0025] (2) implant Ag and Zn ions into the stainless steel substrate on the ion implanter, and the pressure of the vacuum chamber is 1.30×10 -4 ~1.35×10 -4 Pa, Ag ion and Zn ion implantation energy is 60~100keV, Ag ion and Zn ion implantation dose is 8×10 16 ~8×10 17 ions / cm 2 , the ion beam current density is 20~60μA / cm 2 , the injection time is 30-150 minutes, and the content of Ag and Zn in the injection layer is 2.0-20wt% of the mass of the injection layer;

[0026] (3) Antibacterial treatment (vacuum aging treatment), the treatment temperature is 400-700° C., and the time is 2-6 hours.

Embodiment 3

[0027] Embodiment 3, a kind of martensitic antibacterial stainless steel prepared by Cu+Zn binary ion implantation method

[0028] (1) The base material is martensitic stainless steel, and the mass percentage of its chemical composition is: C is 0.08-0.45, Cr is 12-14, Si is ≤0.60, Mn is ≤0.80, Cu is ≤0.10, and the rest is Fe;

[0029] (2) Implant Cu and Zn ions on the stainless steel substrate on the ion implanter, and the pressure of the vacuum chamber is 1.30×10 -4 ~1.35×10 -4 Pa, Cu ion and Zn ion implantation energy is 60~100keV, Cu ion and Zn ion implantation dose is 1×10 17 ~1×10 18 ions / cm 2 , the ion beam current density is 20~60μA / cm 2 , the injection time is 30 to 150 minutes, and the Cu and Zn content of the injection layer is 2.5 to 25 wt% of the mass of the injection layer;

[0030] (3) Antibacterial treatment (vacuum aging treatment), the treatment temperature is 450-750° C., and the time is 2-6 hours.

[0031] Specific Embodiments (2) A kind of preparati...

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Abstract

The invention discloses an antibiotic stainless steel preparing method of double ionic injecting method, which comprises the following steps: putting the disposed stainless steel substrate in the ionic injector to proceed dual ionic injection at 1.0*10-4-1.5*10-4 Pa vacuum chamber pressure, 50-150keV ionic injecting energy, 1*1016-1*1018ions / cm2 injecting dose, 20-80 uA per cm2 ionic beam density for 30-180 min; proceeding antibiotic disposal after injecting at 400-950 deg.c for 1-10 h; utilizing martensite or austenite or ferrite as disposed stainless steel substrate; setting Cu+Ag or Ag+Zn or Cu+Zn as double antibiotic ion; making the injecting layer quality at 0.1-30 wt percent of double antibiotic ion quality.

Description

technical field [0001] The invention belongs to the technical field of preparing antibacterial stainless steel. In particular, it relates to a method for preparing antibacterial stainless steel by using a binary ion implantation method. Background technique [0002] Antibacterial stainless steel is a kind of stainless steel with stable processing performance and good antibacterial performance. Antibacterial stainless steel not only has the advantages of ordinary stainless steel, but also has good antibacterial properties, and has a wide range of uses. In recent years, a variety of antibacterial stainless steels with antibacterial effects have been developed at home and abroad. [0003] "Stainless steel with improved antibacterial performance and its production method" (CN 1158363A) adds 1.5-3.8% copper to different types of stainless steel during overall smelting, and then heat-treats the stainless steel to obtain a copper-rich phase. However, due to the addition of more ...

Claims

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Application Information

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IPC IPC(8): C23C14/48C23C14/16C23C14/54
Inventor 倪红卫张华墙蔷何环宇
Owner WUHAN UNIV OF SCI & TECH
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