Gold electroplating method and hard gold preparation method

Gold electroplating method and hard gold preparation method

CN
  • CN 103,938,231 A
  • Filed: 03/04/2014
  • Published: 07/23/2014
  • Est. Priority Date: 03/04/2014
  • Status: Active Application
First Claim
Patent Images

1. a method of electroplating gold, is characterized in that, the method comprises electroplates the cyanideless electro-plating liquid that contains sulfurous acid gold liquid, phosphoric acid salt, hydrophosphate, alkali sulfite metal-salt, stiffening agent and complexing agent.

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