Analysis Of The Causes Of Increased Local Contact Resistance In Cold-pressed Needles

As an indispensable component in electrical connections, crimp socket contact plays an important role in a variety of industrial applications. However, as the usage time increases, the local contact resistance of the female crimp contact may sometimes increase. Changes in contact resistance directly affect the stability and safety of the electrical system. Generally speaking, the main reason for the increase in local contact resistance is the accumulation of oxides, dirt or other media on the male crimp contact contact surface.

This phenomenon often leads to reduced current conduction efficiency, resulting in heat buildup and component overheating. Especially under high load conditions, the increase in resistance will significantly affect the performance of the crimp contact. In addition, the design, installation process, and material selection of the crimp contact pin contact resistor may also be potential factors contributing to increased contact resistance.