SURFACE TREATMENT METHOD OF ALUMINUM WIRE FOR POWER TRANSMISSION LINE OR ALUMINUM ALLOY WIRE AND MANUFACTURING METHOD OF POWER TRANSMISSION LINE USING IT

摘要

PROBLEM TO BE SOLVED: To provide a wire excelling in corrosion resistance, in relation to a surface treatment method of an aluminum wire or an aluminum alloy wire used for a power transmission line installed between iron towers or the like. SOLUTION: This application is related to a surface treatment method of an aluminum wire or an aluminum alloy wire for a transmission line composed by applying a surface treatment agent containing a rosin compound to its surface, wherein the content of the rosin compound in the surface treatment agent is 10-20 mass%. When the wires are formed into an aerial transmission line, the transmission line is hardly broken and can provide sufficient corrosion resistance, that is, environmental barrier properties by the application of the rosin compound even in a strong acid atmosphere and even when chlorine ions and the like are present. COPYRIGHT: (C)2007,JPO&INPIT