Infrared detection method for break point of mold electric heating wire

The invention discloses an infrared detection method for a break point of a mold electric heating wire, and belongs to an active infrared detection technology, in particular to a method for realizing break point detection of the mold electric heating wire by exciting with a high-voltage discharge circuit. The method is characterized in that the high-voltage discharge circuit is designed firstly, high-voltage discharge spark is generated at the break point when the high-voltage discharge circuit is communicated with the electric heating wire with the break point, and energy is released. Heat is conducted onto the surface of a corresponding mold through an electric heating wire insulating layer, the surface temperature or the change of the surface temperature field of the mold is recorded through a thermal infrared imager, and automatic identification of the break point of the electric heating wire is realized by using a thermal diffusion theory.