| 摘要 |
Apparatus for joining the end of a hollow, elongated plastic member to a plastic sheet member and jointly molding the same including a molding member of dielectric material, preferably Teflon, having a rounded cavity in a surface thereof. A first, mandrel-shaped electrode is supported in the molding member and extends into the cavity. A second, outer electrode encircles the molding member and cavity. The plastic members are positioned so that the end to be formed is in the cavity, in contact with the wall thereof, and a high frequency electric current, in the range of about 25-27 megacycles, is passed through the molding member and plastic members whereupon the members are jointly formed into a rounded tip. |
