The present invention provides a zinc alloy electroplating method comprising applying a current through an alkaline zinc alloy electroplating bath comprising a cathode and an anode, wherein a cathode region including the cathode and an anode region including the anode are separated from each other b
The present invention provides a zinc alloy electroplating method comprising applying a current through an alkaline zinc alloy electroplating bath comprising a cathode and an anode, wherein a cathode region including the cathode and an anode region including the anode are separated from each other by an anion exchange membrane, a catholyte contained in the cathode region is an alkaline zinc alloy plating liquid, and an anolyte contained in the anode region is an aqueous alkaline solution.
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1. A zinc alloy electroplating method comprising applying a current through an alkaline zinc alloy electroplating bath comprising a cathode and an anode, wherein a cathode region including the cathode and an anode region including the anode are separated from each other by an anion exchange membrane
1. A zinc alloy electroplating method comprising applying a current through an alkaline zinc alloy electroplating bath comprising a cathode and an anode, wherein a cathode region including the cathode and an anode region including the anode are separated from each other by an anion exchange membrane,a catholyte contained in the cathode region is an alkaline zinc alloy plating liquid, and an anolyte contained in the anode region is an aqueous alkaline solution. 2. The zinc alloy electroplating method according to claim 1, wherein the anion exchange membrane is a hydrocarbon-based anion exchange membrane. 3. The zinc alloy electroplating method according to claim 1, wherein the aqueous alkaline solution is an aqueous solution comprising one or more selected from the group consisting of caustic alkalis, sodium, potassium, and ammonium salts of inorganic acids, and quaternary ammonium hydroxides. 4. The zinc alloy electroplating method according to claim 1, wherein the aqueous alkaline solution is an aqueous caustic alkaline solution, andthe concentration of the aqueous caustic alkaline solution is in a range from 0.5 to 8 mol/L. 5. The zinc alloy electroplating method according to claim 1, wherein the alkaline zinc alloy plating liquid comprises zinc ions, metal ions, a caustic alkali, and an amine-based chelating agent, andthe metal ions are metal ions of one or more species selected from nickel ions, iron ions, cobalt ions, tin ions, and manganese ions. 6. The zinc alloy electroplating method according to claim 5, wherein the amine-based chelating agent comprises one or more selected from the group consisting of alkyleneamine compounds and alkylene oxide adducts of alkyleneamine compounds. 7. The zinc alloy electroplating method according to claim 5, wherein the alkaline zinc alloy plating liquid further comprises one or more selected from the group consisting of brightening agents, auxiliary additives, and anti-foaming agents. 8. The zinc alloy electroplating method according to claim 7, wherein the alkaline zinc alloy plating liquid comprises a brightening agent, andthe brightening agent comprises one or more selected from the group consisting of quaternary ammonium salts and aromatic aldehydes. 9. The zinc alloy electroplating method according to claim 1, wherein the alkaline zinc alloy plating liquid is an alkaline zinc-nickel alloy plating liquid. 10. The zinc alloy electroplating method according to claim 1, wherein the anode is selected from the group consisting of iron, stainless steel, nickel, and carbon.
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