Insulator flashover voltage improving method and device based on 3D printing technology

The invention provides an insulator flashover voltage improving method based on the 3D printing technology, and relates to the technical field of modified polymeric materials, and the method comprises the following steps: obtaining 3D printing data of an insulator; calculating a surface electric field distribution condition of the insulator through finite element software, and determining a relative dielectric constant distribution condition of the insulator according to the surface electric field distribution condition; according to the relative dielectric constant distribution condition, the filling proportion of a nanometer filling material needed by insulator printing is determined; obtaining a 3D printed insulator according to the 3D printing data and the filling proportion of the nanometer filling material; and surface fluorination treatment is conducted on the insulator subjected to 3D printing, and therefore the insulator with the flashover voltage improved is obtained. The dielectric constant of the