Slip ring insulating properties

Insulation of electrical slip ring is a very important performance properties, it is a measure of the reliability of slip ring is an important indicator, refers to the metal ring and metal rings, metal ring and the spindle between the metal ring and wire between the metal ring and the shell, between the wire and the wire insulation strength. Mainly due to the insulating properties of insulation material, the internal structure design. A good slip ring design on the one hand should give full play to the advantage of material, on the other hand should be avoided material on some of the flaws.

Metal ring and the insulating material between the metal ring, high-performance engineering plastics generally select or use an insulating film with a high-performance epoxy resin based insulating adhesive. Insulation sheet will generally use is to use some larger slip ring, like through-hole slip ring and some larger Customized Slip Rings, etc., using potting process is generally smaller cap slip ring and customized smaller slip ring. The dielectric strength of insulation adhesive gel formulation is mainly affected by the impact of technology and potting, insulating rubber generally uses about 60 percent of the epoxy resin, about 20 percent kaolin, about seven percent of phthalic acid dibutyl about five percent triethanolamine, and a few percent of other ingredients. Craft glue should avoid cracks in the curing process and bubbles, when the air humidity increases, the dielectric strength may be reduced. Between the metal ring and the metal ring to control the distance of at least 1.5mm.. After our trial and a unique selection of recipes potting process enables us to reach 1,000 megohms insulation resistance above, and then pressure test through a 50 Hz 1000 V test does not breakdown, and also through the high and low temperature case insulation test.