Electrical insulation material

Electrical insulation materials are mainly used for electric motors and electrical appliances, such as insulation of armature wedges, stator windings and rotor windings in generators and motors. Divided into 6 categories according to the shape: 1 insulating varnish, resin liquid and adhesive. For example, insulating impregnating varnish, silicon steel sheet lacquer, enameled wire lacquer, potting resin liquid and various adhesives are commonly used epoxy resin, polyester, polyurethane, silicone resin, polyimide alkyd resin (see alkyd resin coating) )Wait. 2 impregnated fiber products. Such as insulating cloth, tape and other products obtained by impregnating various types of cotton, silk, synthetic fiber and glass fiber or fabric with resin. 3 laminates. A laminate of various organic or inorganic substrates impregnated with a resin, such as a variety of laminates. 4 plastic products category. It is made by adding various organic or inorganic fillers to the resin, such as TV case, instrument, instrument case, electrical switch connector housing and so on. 5 film, synthetic paper and composite products. For example, various polymer film capacitor dielectric materials, commonly used are polystyrene, polypropylene, polyester, polycarbonate, polytetrafluoroethylene, polyimide and other films; various synthetic fiber insulation paper, such as aromatic poly Amide fiber paper, polyester fiber paper; various insulating adhesive tapes, insulating tapes, etc. 6 rubber products. For example, various wire and cable insulation layers and sheaths, heat shrinkable tubes, silicone rubber insulated terminals, and the like.