What is An Electrical Laminate?

What is an electrical laminate? Electrical laminates are widely used as insulation materials and support materials in transformers and transformers. Electrical laminate has the advantages of moderate specific gravity, high mechanical strength, easy vacuum drying, and easy machining. Its dielectric constant is close to that of transformer oil and its insulation coordination is reasonable. Electrical laminate can be used in 105 ° C transformer oil for a long time. Electrical laminated wood has been widely used in oil-immersed transformers to manufacture parts such as upper and lower pressure plates, lead frames, yoke pads, etc., and is used to make clamps in transformers. Electrical laminate replaces steel plates, insulating cardboard, epoxy cardboard, The application of epoxy glass cloth board in these aspects reduces the weight and material cost of the transformer. The electrical laminated board is a veneer made by cooking, spinning and drying high-quality birch wood, coated with special insulating glue, and then made under high temperature and high pressure.
electrical laminate
Production process of electrical laminate:
A production process of laminated electrical laminate, which is characterized in that high-quality wood is soaked to remove bark, made into veneer, and dried in a dryer; the veneer and composite insulation materials are pressed according to the user-supplied pressure. The shape and size of the ring, the number of pieces of the same layer of the veneer and the composite insulation material and the geometric size are designed into a single piece by the computer design, and then glued, dried, aged, and formed into individual pieces of the same layer. Sheet, each layer is assembled according to the computer-designed placement program, and formed by hot pressing once. This electrical laminate can reduce the materials and man-hours when manufacturing pressure coils for transformers and transformers, and reduce costs.

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