Chemical nickel is a nickel metal material prepared by using nickel ions in aqueous solution or organic solvents by reduction deposition. It has excellent physical and chemical properties, and is widely used in the production of batteries, electronic devices, wear-resistant coatings and so on. Common chemical nickel electrodeposition nickel, nickel dip plating.
Author: Anna
I. Definition and role of chemical nickel
Chemical nickel is a nickel metal material prepared by using nickel ions in aqueous solution or organic solvents by reduction deposition. It has excellent physical and chemical properties, and is widely used in the production of batteries, electronic devices, wear-resistant coatings and so on. Common chemical nickel electrodeposition nickel, nickel dip plating.
II. Chemical nickel common problem analysis
1. Cracks on the surface of electroless nickel coating
Cracks on the surface of electroless nickel coating are usually caused by excessive plating, high plating temperature, defects on the surface of the substrate, etc. The solution can be to optimize the formulation of the plating solution. The solution can be to optimize the formulation of the plating solution, reduce the plating temperature and strengthen the surface treatment of the substrate.
2. More holes in electroless nickel coating
More holes in the electroless nickel coating are usually caused by excessive oxygen in the atomizing gas, impurities in the plating solution and low electrolyte concentration. The solution can be to adjust the ratio of atomizing gas, filter and remove impurities, increase the concentration of electrolyte and so on.
3. Uneven color of electroless nickel coating
Uneven color of electroless nickel coating is usually caused by uneven distribution of current density and insufficient surface finish of the coating. The solution can be to adjust the current density, optimize the composition of the plating solution and strengthen the surface treatment of the coating.
4. Chemical nickel coating adhesion is not strong
The weak adhesion of electroless nickel coating is usually caused by the lack of thorough surface treatment of the substrate, the thickness of the coating is too thick, and the improper formulation of the plating solution. The solution can be to optimize the surface treatment process of the substrate, control the thickness of the coating and optimize the formulation of the plating solution.
5. Poor corrosion resistance of chemical nickel coatings
Poor corrosion resistance of electroless nickel coating is usually caused by impurities in the plating solution, uneven distribution of current density, and too thin a coating. The solution can be to remove impurities, control the current density distribution, increase the thickness of the coating.
III. Summary
Chemical nickel is an important metal material, but there are some common problems in the process of use, such as surface cracks, more holes, uneven color, poor adhesion, poor corrosion resistance and so on. For these problems, it is necessary to adjust and optimize from the plating solution formulation, surface treatment, current density control, etc., in order to improve the quality and stability of the chemical nickel coating.