Method of molding composite insulator and metal molding...

Details Method of molding composite insulator and metal molding... Method of molding composite insulator and metal molding...

H - Electricity

01

B

H01B 19/00 (2006.01) B29C 33/02 (2006.01) B29C 43/18 (2006.01) B29C 35/02 (2006.01)

Patent

CA 2225640

A method of molding a composite insulator having a core member and an overcoat portion arranged on an outer surface of the core member, in which a core member having metal fittings at both ends thereof is set in a metal mold for molding the composite insulator, overcoat portion forming materials are filled in a cavity for molding said overcoat portion formed around the core member, and then the overcoat portion forming materials are cured by heat, is disclosed. The improved method includes a step of making a temperature increase of the overcoat portion forming materials near the metal fittings equal to that of the other portion, when the overcoat portion forming materials are cured by heat, by utilizing an additional heating means.

Méthode de moulage d'un isolant composite muni d'un noyau et d'un revêtement placé sur une surface extérieure du noyau, dans lequel un noyau comportant des ferrures à chaque extrémité est placé dans un moule métallique pour mouler l'isolant composite. Les matériaux de formage du revêtement sont déposés dans une cavité pour mouler le revêtement formé autour du noyau, puis les matériaux de formage du revêtement sont vulcanisés à chaud. La méthode améliorée inclut une étape consistant à hausser la température des matériaux de formage du revêtement près des ferrures pour qu'elle soit égale à celle des autres parties, lorsque les matériaux de formage sont vulcanisés à chaud, en utilisant un dispositif de chauffage supplémentaire.

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