Collector ring with what copper good

The use of bronze can be, but I suggest that the choice of steel is more appropriate, because the collector ring material requirements of mechanical strength, and is a good conductor of electricity, but also has corrosion resistance, in sliding contact with the brush, must have wear resistance and stable sliding contact characteristics. Generally, the steel collector ring has good wear resistance and high mechanical strength, so it is mostly used on synchronous motors with large collector ring wear difference caused by polarity.

The collector ring is also called conductive ring, slip ring, collector ring, converging ring and so on. It can be used in any electromechanical system that requires continuous rotation while transmitting power and signals from a fixed position to a rotating position. Slip rings can improve system performance, simplify system structure and avoid twisting of wires during rotation.

Cautions

Collector ring and brush on the cooperation, when the brush is too abrasive and the collector ring material is too soft, often in the collector ring equivalent to the brush width of the step wear. Especially the high temperature and low humidity of the fully enclosed motor, it is more likely to cause excessive wear of the brush or collector ring. Heavy image scars are formed in such a way that there are only very small scars at first, and the brushes spark in these areas as a result of poor current collection. Once a spark is generated, the scar gradually deteriorates and expands, eventually forming a scar of the same size as the size of the brush sliding contact surface. Therefore, even if the brushes used for the collector ring produce very small sparks, attention must be paid.