How To Improve The Conductivity Stability Of Bimetallic Terminals?

In the specific design process, the difference in thermal expansion between the materials of cable lug bimetal is one of the important factors affecting performance. By bonding copper and aluminum materials firmly through methods such as friction welding, the amount of contact change during thermal cycling can be reduced, thereby improving the consistency of the electrical properties of bimetallic lugs at the material interface. This structural treatment reduces the risk of resistance drift.

The presence of an oxide layer can affect the electrical properties of the metal contact surfaces of bi metal cable lug. Pre-treating the contact surface or using appropriate bonding techniques during manufacturing helps to reduce unstable fluctuations in contact resistance.