Archaistic bronze electroplating solution as well as preparation method and application thereof

Abstract

The invention discloses an archaistic bronze electroplating solution as well as a preparation method and an application thereof. The archaistic bronze electroplating solution comprises the following components in parts by weight: 22-30 parts of cuprous cyanide, 25-34 parts of zinc sulfate, 20-26 parts of sodium cyanide, 60-70 parts of sodium pyrophosphate, 1-6 parts of polyethylene glycol 2000, 0.5-1.2 parts of sodium chloride, 8-16 parts of sodium potassium tartrate, 0.5-2 parts of sodium bicarbonate and 30-50 parts of water. The preparation method comprises the following steps: heating the water to the temperature of 50 DEG C to 60 DEG C, stirring and adding the polyethylene glycol 2000, stirring to make the polyethylene glycol 2000 be dissolved completely, then adding the rest components, fully stirring and dissolving to obtain the archaistic bronze electroplating solution. When the electroplating solution provided by the invention is in use, electroplating can be performed just by dipping a to-be-electroplated workpiece into the electroplating solution in an electrolytic bath and supplying current. By using the archaistic bronze electroplating solution provided by the invention to electroplate a product, an electroplated workpiece can be kept stable for a long time, and no color changes are caused.

Description

technical field [0001] The invention belongs to the technical field of metal electroplating, in particular to an antique bronze electroplating solution and its preparation method and application. [0002] Background technique [0003] Copper-based blanks such as phosphor bronze or beryllium are generally used for parts blanks for electrical contacts such as connectors used in connection parts of electronic equipment; electroplating technology is widely used for surface treatment of parts for electrical contacts, and the types can be roughly divided into precious metals Electroplating and base metal plating. [0004] As base metal plating, tin-lead-tin tin plating, which is excellent in both solderability and corrosion resistance, is widely used industrially. However, as the harmfulness of lead has been pointed out, plating that does not contain lead has been used instead of lead plating. A representative method of lead-free plating is to perform nickel plating on copper-b...

AI Technical Summary

Problems solved by technology

[0007] However, due to the high manufacturing cost of gold electroplating, it is necessary to develop other electroplating solutions and electroplating methods that can represent gold electroplating.