Method for manufacturing a high-voltage composite insulator, high-voltage insulator and plastic for use in the method, method for manufacturing a non-cylindrical component

摘要

Production of a high voltage insulator with an elongated central solid or hollow body, a plastics cover and plastics shields involving placing the cover on a solid or hollow body by extrusion or casting, forming of the shields, partial crosslinking of the cover and/or shields and crosslinking the non-partially crosslinked material, and complete crosslinking of the high voltage insulator obtained is new. A process for production of a high voltage insulator with an elongated central solid or hollow body (1), a plastics cover (6) and one or more plastics shields (3) involves the steps: placing of cover (6) on the solid or hollow body (1) by extrusion or casting, forming of the shields (3), where the plastics materials of the cover and/or shields are partially crosslinked, and optionally the non-partially crosslinked material of the cover and shields is completely crosslinked, the shields are arranged on the cover, and the high voltage insulator obtained is completely crosslinked. Independent claims are included for: (1) high voltage insulator with an elongated central solid or hollow body (1), a cover (6), and one or more shields (3), obtained as above; a (2) a plastics materials containing at least two crosslinking catalysts reacting at different temperatures, and at least two different inhibitors for inhibiting addition reactions up to the above different temperatures; (3) a process for production of a non-cylindrical component with an elongated central solid or hollow body, a plastics cover, and one or more plastics fin members involving the steps: placing of the cover on the solid or hollow body, forming of the fin members, and partial crosslinking of the cover and/or fin member materials, and optional complete crosslinking of the non-partially crosslinked materials of the cover and fin members, placing of the fin members on a predetermined site on the cover, and final complete crosslinking of the assembly.