Copper plating technology of hardware

A technology for hardware and copper plating, applied in the field of hardware, can solve the problems of environmental pollution of electroplating waste liquid and health threats of workers, and achieve the effects of excellent bonding force, low production cost and health protection.

Inactive Publication Date: 2019-02-12
嘉兴市劼力机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 pla

Method used

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Embodiment Construction

[0018] The invention discloses a copper plating process for hardware parts. The specific implementation manners of the invention will be further described below in combination with preferred embodiments.

[0019] The copper plating process of a hardware part comprises the following steps:

[0020] Step S1, the hardware is subjected to alkali washing to remove oil stains, and the oxide on the surface of the hardware is removed after pickling; then the hardware is heated and dried to discharge the gas remaining on the surface of the hardware during the pickling process;

[0021] Step S2, activation treatment: immerse the above hardware in an activation solution at a temperature of 80-90° C. for 20-25 minutes to perform surface activation treatment;

[0022] Step S3, washing with water: washing the activated hardware with running water until there is no activation solution on the surface;

[0023] Step S4, electroplating: Electrolytic copper is used as the anode, and the hardwar...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): C25D3/38C25D5/34
CPCC25D3/38C25D5/34
Inventor 陈国强
Owner 嘉兴市劼力机械科技有限公司
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