Sulfamate nickel plating is an electroplating process that deposits a metallic nickel layer on metal surfaces, ensuring high hardness, wear resistance, and excellent electrical conductivity.
Unlike traditional electrolytic nickel plating and electroless nickel plating, this process is particularly suitable for applications requiring high ductility. Thanks to the low internal stress of the deposit, sulfamate nickel plating is ideal for components that need to undergo geometrical deformations after treatment, such as crimping, bending, or deep drawing.
Advantages of Sulfamate Nickel Plating
- Low residual stress: prevents brittleness and distortions in the deposit.
- High ductility: withstands deformations without cracks or detachment.
- Excellent adhesion: ideal for substrates requiring further processing.
- Good electrical conductivity: suitable for contacts and connectors.
- Greater corrosion resistance: the deposit has higher purity compared to nickel plating with sulfur-containing additives, reducing susceptibility to intergranular corrosion. Additionally, it exhibits lower internal stress, preventing microcracking and better protecting the substrate, and greater compactness, resulting in lower porosity.
Main Applications
- Electronic components and crimped connectors
- Metal parts subjected to bending or deep drawing
- Molds and tools for plastic processing
- Rollers and cylinders for the printing industry
- Aerospace and automotive sectors
It can also be used as an underlayer for other coatings, such as gold plating, silver plating, tin plating, and others.