A metal alloy bright electroplating solution

Abstract

A metal alloy bright electroplating solution comprises, by weight, 30-50 parts of copper sulfate, 40-50 parts of aluminum sulfate,30-60 parts of copper chloride, 15-20 parts of nickel hydroxide cobaltous sulfate, 10-20 parts of cobalt chloride, 15-30 parts of ferric sulfate, 10-20 parts of ferrous chloride, 10-15 parts of cuprous oxide, 15-20 parts of hydrochloric acid, 3-5 parts of acetic acid, 10-15 parts of sodium hydrogen phosphate, 15-20 parts of sodium nitrite, 20-30 parts of potassium cyanide, 20-50 parts of sodium stannate, 20-50 parts of potassium hydroxide, 50-80 parts of benzalacetone and 1000-3000 parts of deionized water. Benzalacetone is added into the electroplating solution, so that the brightening effect can be effectively achieved.

Description

technical field [0001] The invention relates to an electroplating solution, in particular to an electroplating solution for a metal alloy. Background technique [0002] During the machining process, the anti-rust grease, cutting fluid, machine oil, lubricating grease, grinding fluid, mold release agent, etc. adhered to the surface of the parts are mixed with dust and grinding dust to form thick dirt. If the above dirt is not removed before heat treatment, it will be hard to clean after quenching and sintering into stubborn solid oil and rust, and bubbles will adhere to it during plating to form gas retention pinholes in the coating. The surface of the heat treatment workpiece will inevitably adhere to a layer of oil. When the dust falls on the surface and mixes with the grease, it will be difficult to clean it after a long time, so that the surface of the workpiece will form small oil spots that are not obvious. When air bubbles stay on it, pinholes are formed. In addition...

AI Technical Summary

Problems solved by technology

In addition, when the mesh belt resistance furnace is used for quenching, the oil stains on the surface of the workpiece are mixed with dust and other impurity particles, and sintered into stubborn solid grease. When the nitrate is tempered, the above grease and nitro salt form stubborn thermal polymer , It is difficult to completely remove the above dirt during electroplating. Hydrogen bubbles tend to adhere to the dirt and are difficult to discharge, resulting in pinholes and pitting in the coating, and as the bubbles gradually grow, the coating will automatically burst. , produces peeling phenomenon, which leads to the disadvantages of poor hardness of the plating solution, poor dispersion performance and poor covering ability