Steel Wire and Spring with Excellent Antibacterial Properties and Corrosion Resistance and Method for Manufacturing the Same

A spring having excellent antibacterial properties and corrosion resistance, which is manufactured with a steel wire having a plating layer, the spring comprising:

• a steel wire;
• and
• a plating layer formed on the steel wire,
• wherein the plating layer includes
• a zinc (Zn)-aluminum (Al) plating layer plated on a surface of the steel wire, and
• a doping layer formed by doping a surface of the Zn—Al plating layer with a metal in a colloidal form,
• wherein the steel wire is processed and manufactured in the form of a spring.

A method of manufacturing a steel wire having excellent antibacterial properties and corrosion resistance, which is a method of manufacturing a steel wire having a plating layer, the method comprising

• forming a plating layer on a surface of a steel wire,
• wherein the forming of the plating layer includes:
• forming a zinc (Zn)-aluminum (Al) plating layer by plating the surface of the steel wire;
• and
• forming a doping layer by doping a surface of the Zn—Al plating layer with a metal in a colloidal form.

A method of manufacturing a spring having excellent antibacterial properties and corrosion resistance, which is a method of manufacturing a spring by using a steel wire having a plating layer, the method comprising

• forming a plating layer on a surface of a steel wire,
• wherein the forming of the plating layer includes:
• forming a zinc (Zn)-aluminum (Al) plating layer by plating the surface of the steel wire;
• and
• forming a doping layer by doping a surface of the Zn—Al plating layer with a metal in a colloidal form,
• the method further comprising manufacturing the steel wire having the plating layer in the form of a spring.