The brush surface of slip ring should adopt gold to gold contact materials in order to reach the best performance between brush and cooper ring. It has a very closed connection with the environment conditions and technical demand of supporting facility. We know that, brush at least plays two important roles in total slip ring or contacting of collecting ring, firstly, transmitting current and signal; secondly, power source or signal source commutation. For the performance demand of brush, not only should have good conduction performance, but also must require excellent commutation performance, good lubricity, reliable stability, wear resistant and so on.

On the basis of actual operating, please take care of below attentions:

1.From the point of intuition, brush should be chamfering appropriately, specification suitably and the cross section & length of lead wire accords with the requirement of doing not become loose, fall off, broken and so on.

2.From the using, the mark of good brush performance mainly has following conditions:

1). Longer life time and good wear resistant performance
2). Adopt for standard voltage and current without spark.
3). Low noise, reliable assembly, no breakage when brush is working.
4). Commutator or slip ring surface could quickly form a layer of uniform, moderate and stable oxide film.

3.Some reliable manufacturers will use the most precise measuring instrument to test the brush accessory products, from the technical level, brush should conform to the international standard. In accordance with the “ brush technology performance form” of the performance required for testing. For example, the resistivity of brush, rockwell hardness, volume density, current density, contact voltage drop, 50 hours with the coefficient of friction, unit pressure, the size of the metal content and so on.

4.Brush and the materials of slip ring should be reliable, and the gold-plated supplier must have corresponding qualification experience in this industry. Different plating technology level would produce different brush.

5.Make sure clean between brush and slip ring surface to avoid of destroying the product stability in the test operation.

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Barlin Times has been produced and developed reliable performance and superior quality slip rings for more than 10 years in the different harsh environment industry at home and abroad.