Use of a Zn-Ni alloy for preparation of Zn-Ni alloy electroplating bath, use of a Zn-Ni alloy for preparation of Zn-Ni alloy hot-dip galvanizing plating bath, and method for producing a Zn-Ni alloy

摘要

A Zn-Ni alloy having a high Ni content is used for supplying Ni²⁺ and Zn²⁺ ions into an acidic plating bath and for supplying Ni and Zn into a hot dip galvanizing bath. This alloy is characterized by being produced by using a flux consisting of a fused-salt former, which forms a salt having a melting temperature of 700°C or less, and Na₂B₄O₇ and occasionaly additionally Na₂CO₃. By using the inventive alloy, the bath can be quickly prepared, and Zn and Ni can be supplied to the bath without leaving the undissolved residue.