This article provides a detailed introduction to three methods and steps: chemical copper plating, electroplating copper, and vacuum copper plating. The aim is to help readers better understand copper plating on workpieces, remind them of precautions, and answer common questions. If copper plating is required on the workpiece, it is recommended to choose a suitable method that meets the actual sit
Author: Marisa
1、 Chemical copper plating
Chemical copper plating is a method of reducing copper ions to metallic copper and attaching it to the surface of workpieces using some chemical solutions. It is usually suitable for workpieces with complex shapes and small surfaces. The specific steps are as follows:
1) Cleaning the workpiece: Use alkaline cleaning agent to remove surface oil stains and oxides.
2) Washing workpieces: Use water and acidic liquids to remove residual cleaning agents and oxides.
3)Soaking the workpiece: Soak the workpiece in a copper ion solution and use a reduction method to make copper adhere to the surface of the workpiece.
4)Cleaning the workpiece: Wash the workpiece with water and acidic liquid to remove excess copper ions and other chemical substances.
2、 Electroplated copper
Electroplating copper is a method of depositing metal ions on charged electrodes using an electrolyte, typically suitable for large, flat surface workpieces. The specific steps are as follows:
1） Preparation of workpiece: Use the workpiece that needs to be plated with copper as the cathode and copper as the anode, and short-circuit the electrode plate through a power supply.
2）Cleaning the workpiece: Use alkaline cleaning agent to remove surface oil stains and oxides.
3） Washing workpieces: Use water and acidic liquids to remove residual cleaning agents and oxides.
4） Pre treatment of workpiece: Immerse the workpiece in an electrolyte called "acidic copper salt solution" for electrolytic pretreatment.
5）Copper plated workpiece: Dip the workpiece to be plated into a copper salt electrolyte for copper plating.
6） Cleaning the workpiece: Wash the workpiece with water and acidic liquid to remove excess copper ions and other chemical substances.
3、 Vacuum copper plating
Vacuum copper plating is the process of condensing the vapor formed by copper evaporation or sputtering electron beams onto the surface of a workpiece to form a copper coating, which is usually suitable for high-precision and high demand workpieces. The specific steps are as follows:
1） Preparation of workpiece: Place the workpiece that needs to be plated with copper into the vacuum chamber and clean the surface.
2）Vacuum extraction: Extract the gas from the vacuum chamber to create a vacuum state inside.
3）Fluid condensation: Copper is evaporated or sputtered and released into the room, condensing on the surface of the workpiece to form a copper coating.
4）Cleaning the workpiece: Wash the workpiece with water and acidic liquid to remove excess copper ions and other chemical substances.
It should be noted that corresponding safety operating procedures should be followed during the copper plating process, and tools and equipment should be cleaned promptly after operation to prevent pollution and hazards.
This article provides a detailed introduction to three methods and steps: chemical copper plating, electroplating copper, and vacuum copper plating. The aim is to help readers better understand copper plating on workpieces, remind them of precautions, and answer common questions. If copper plating is required on the workpiece, it is recommended to choose a suitable method that meets the actual situation and strictly follow the regulations in actual operation.