Composite carbon-fiber wire and method for manufacturing the same

A method for manufacturing a composite carbon-fiber wire, comprising:

• a wire-feeding step:
• drawing a carbon-fiber filament using a wire-feeding machine, wherein the carbon-fiber filament is formed by aggregating a plurality of carbon-fiber tows that are purely made of carbon;
• a protective-layer forming step:
• placing the carbon-fiber filament into a coating mold to coat a melted resin material across an outer surface of the carbon-fiber filament, thereby forming a protective layer;
• a cooling step:
• cooling the melted resin material now covering the carbon-fiber filament using a cooling device, so as to cure the melted resin material of the protective layer;
• a lubricant-solution soaking step:
• soaking the cooled carbon-fiber filament in a lubricating device containing a lubricant solution, and removing the carbon-fiber filament from the lubricating device;
• and
• a drying step:
• drying the lubricant solution absorbed by the protective layer using a drying apparatus, so as to leave a plurality of lubricant particles across an outer surface of the protective layer as a lubricant layer, thereby forming the composite carbon-fiber wire.