2results about How to "Improve breakdown resistance" patented technology

The metal wire annealing device comprises an annealing main body, a detection unit and a peeling box, and the interior of the peeling box is filled with a polishing particle layer used for polishing the surface of a wire. The shape fixing assembly is used for adjusting the shape fixing force of the polishing particle layer, and the control module is electrically connected with the detection unit and the shape fixing assembly. When the detection data of the detection unit is larger than a threshold value, the control module adjusts the shape fixing force of the polishing particle layer through the shape fixing assembly according to the detection data. The detection unit monitors the proportion area of the oxide skin in real time, the control module dynamically adjusts the shape fixing force of the polishing particle layer, the oxide skin with different adhesion amounts can be removed in a targeted mode, the problem of oxide skin residues is solved, the conductivity stability of copper wires is guaranteed, interference of the oxide skin on extrusion of an insulating layer is avoided, the breakdown resistance of the cable is improved, and the service life of the cable is prolonged.

This invention discloses a flame-retardant, breakdown-resistant capacitor base film and its preparation method. The raw materials, by weight, include: 100 parts polypropylene; 3.5-8.5 parts compatibilizer; 14-25 parts flame-retardant dielectric modifier; 0.3-1 parts antioxidant; and 0.5-1.8 parts nucleating agent. The flame-retardant dielectric modifier is a composite microcapsule obtained by coating the core material with nano-magnesium hydroxide and silica-modified polydopamine. By adding a flame-retardant dielectric modifier to the polypropylene system, this invention imparts excellent flame-retardant properties to the prepared polypropylene capacitor base film, while also improving its mechanical strength, increasing the dielectric constant of the base film, and enhancing its breakdown resistance, thus improving its overall performance.