What Is The Effect Of Carbonization Of Residual Bristles When Fuse Contacts Are Coated With Conductive Paste

The consequences of leftover bristles following carbonization on fuse contacts treated with a conductive paste can be significant. When these bristles remain after the application of the paste, they can lead to the formation of high resistance values post-carbonization. This increased resistance results in heat generation under normal operating currents, which can cause the New Energy vehicle fuse integrated caps to overheat, leading to burning and abrasion. This, in turn, creates an even greater contact resistance, initiating a detrimental cycle that could ultimately result in a failure or accident.

To address this issue, the following corrective measures should be taken:

First, clean the contact surface of the conductor by wiping it with isopropyl alcohol or acetone until it is completely dry.

Once dry, apply a thin layer of conductive paste with a thickness of 0.05-0.1mm. Ensure that the paste is spread evenly to create a uniform coating.

It is ideal to form a film that entirely covers the contact surface. After applying the paste, gently use a copper wire brush to smooth out the surface, ensuring that the conductive paste is properly distributed and any remaining bristles are removed.