| 摘要 |
PURPOSE: A nano silver steel pipe is provided to thermally spray coating agent powder to remove a separate a heating work, thereby drastically shortening costs and time necessary for coating. CONSTITUTION: A method for coating a steel pipe comprises the following steps. An FBE(Fusion Bonded Epoxy) coating layer, a polyethylene bonding layer, and a polyethylene resin layer are successively coated on the surface of a steel pipe(S111). An epoxy composition which is in a liquid state is coated on the inside of the steel pipe(S117). Fused epoxy, a polyethylene bonding agent, and polyethylene resin powder are sprayed on the surface of the steel pipe. Epoxy composition including nano silver, which is in a liquid state, is sprayed on the inside of the steel pipe. |
