Copper plating technology of hardware

Abstract

The invention discloses a copper plating technology of hardware. The technology comprises following steps that S1, the hardware is subjected to alkali washing, oil contamination is removed, after acidpickling, oxide on the surface of the hardware is removed, the hardware is heated and dried, and gas remaining on the surface of the hardware in the acid pickling process can be exhausted; S2, activating treatment is carried out; S3, washing is carried out; fourthly, electroplating is carried out, wherein electrolytic copper serves as an anode, the hardware serves as a cathode, the electrolytic copper and the hardware are put into an electrolytic cell to be electroplated, an electroplating electrolyte solution contains 40 to 60g / L of CuSO4.5H2O, 80 to 100 mL / L of glyoxylic acid, 50 to 60 g / Lof calcium hypophosphite, 20 to 40 g / L of nickel chloride, 50 to 80 g / L of boric acid, and 0.5 to 0.8 g / L of 1,4-butynediol. According to the copper plating technology of the hardware, virulent chemical medicines are not needed, health of a worker is ensured, and the technology is green and environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of hardware, and in particular relates to a copper plating process for hardware. Background technique [0002] Hardware parts refer to various metal devices made of iron, steel, aluminum and other metals through forging, rolling, cutting, etc. physical processing, such as hardware tools, hardware parts, daily hardware, construction hardware and security supplies, etc. Hardware is widely used in the production and manufacturing of all walks of life. Iron-based materials are relatively cheap and easy to process, so iron-based materials are widely used in the manufacture of hardware, but the corrosion resistance of iron-based materials is relatively poor, and generally undergo surface treatment processes to prevent subsequent processing of hardware. Oxidation and corrosion occur during use. [0003] Electroplating is a very common surface treatment process. Electroplating is the process of plating a thin lay...

AI Technical Summary

Problems solved by technology

At present, as long as the main copper plating processes include cyanide copper plating and pyrophosphate copper plating, these two copper plating processes require the use of highly toxic chemicals, which pose a great threat to the health of workers. serious environmental pollution