CORROSION PREVENTION METHOD FOR ELECTRIC WIRE WITH TERMINAL AND ELECTRIC WIRE WITH TERMINAL

PROBLEM TO BE SOLVED: To provide a technology for improving the electrical connection reliability of a terminal.SOLUTION: A corrosion prevention method for an electric wire with a terminal 13 which comprises an electric wire 12 having a core wire 11 containing aluminum or an aluminum alloy and a female terminal 10 containing copper or a copper alloy and connected to the core wire 11 includes a coating step of immersing the core wire 11 and a wire barrel 15 of the female terminal 10, connected to the core wire 11 in a treatment liquid 23 containing a surface treatment agent having an affinity group having an affinity for a metal and a hydrophobic group having hydrophobicity in a molecular structure thereof to coat the surfaces of the core wire 11 and the wire barrel 15 with a treatment layer 22 containing the surface treatment agent.SELECTED DRAWING: Figure 2 【課題】端子の電気的な接続信頼性を向上させる技術を提供する。【解決手段】アルミニウム又はアルミニウム合金を含む芯線１１を有する電線１２と、芯線１１に接続されると共に銅又は銅合金を含む雌端子１０と、を備えた端子付き電線１３の防食方法であって、金属との親和性を有する親和性基と、疎水性を有する疎水性基と、を分子構造中に有する表面処理剤を含む処理液２３内に、芯線１１と、雌端子１０のうち芯線１１が接続されたワイヤーバレル１５とを浸して、芯線１１とワイヤーバレル１５の表面を表面処理剤が含まれる処理層２２で被覆する被覆工程と、を備える。【選択図】図２