Why use nickel sheets when welding circuit boards
When welding circuit boards, the reason for using nickel sheets is mainly based on the physical properties and chemical stability of nickel sheets. The following is a specific analysis:
1. Physical properties
High temperature resistance: Nickel sheets have a high melting point and can withstand the high temperatures during welding without melting or deforming as easily as some other materials. This feature makes nickel sheets an ideal choice for connecting different components when welding circuit boards.
Easy welding: Nickel sheets are easy to weld and have strong tin absorption, which makes the welding process smoother and more efficient. At the same time, the connection points of nickel sheets after welding are strong and reliable, which can meet the requirements of the circuit board for connection strength.
Diversified shapes: Nickel sheets can be cut and shaped according to the needs of the actual circuit board structure to meet the connection needs of components of different shapes and sizes.

2. Chemical stability
Antioxidation: After the nickel sheet is oxidized in the air, a dense oxide film will be generated. This oxide film has antioxidant properties and can protect the nickel sheet from further oxidation. This feature allows the nickel sheet to maintain a stable connection state for a long time after welding and is not easily affected by environmental factors.
Corrosion resistance: Nickel sheets also have good corrosion resistance and can maintain the stability and reliability of connection points in humid and highly corrosive environments. This is essential for the operation of circuit boards in harsh environments.
3. Other advantages
Save production costs: The technology of spot welding nickel sheets is mature, and the welding work can be completed quickly and efficiently, thus saving production costs.
Convenient secondary disassembly: In some cases, if the circuit board needs to be repaired or components replaced, the connection points of the nickel sheets can be easily removed without damaging other components or lines on the circuit board. This makes nickel sheets the preferred connection material for circuit boards with high requirements for maintainability and upgradeability.
Nickel sheets are used when welding circuit boards mainly due to their high temperature resistance, easy welding, diverse shapes, oxidation resistance, corrosion resistance and other advantages. These characteristics make nickel sheets an ideal choice for connecting circuit board components and can improve the stability and reliability of circuit boards.