Preparation method of enameled wire with high temperature resistance

The invention belongs to the technical field of enameled wires, and particularly relates to a preparation method of a high-temperature-resistance enameled wire, which comprises the following steps of: alternately coating modified polyester and polyamide-imide as paint film layers to form a laminated composite sheet layer structure; the number of stacked layers is not less than 10, and the number of each of the modified polyester and the polyamide-imide is not less than 5. The problem that an existing enameled wire is poor in temperature resistance is solved, an alternate paint film structure is formed through modified polyester and polyamide-imide, the rigidity and the electric insulation performance of the insulating paint layer are guaranteed in a performance complementation and structure clamping mode, the enameled wire has better softening breakdown resistance, and the service life of the enameled wire is prolonged. And the heat-resistant electrical insulation performance of the product is improved. 本发明属于