| 摘要 |
PCT No. PCT/FR84/00077 Sec. 371 Date Oct. 30, 1984 Sec. 102(e) Date Oct. 30, 1984 PCT Filed Mar. 23, 1984 PCT Pub. No. WO84/03794 PCT Pub. Date Sep. 27, 1984.A method of molding the insulating covering of an organic electrical insulator comprising a long central rod (3) having end fittings (5, 6). Retractable supports (11, 12, 21, 22) are disposed at regular intervals along an injection mold for the covering. The covering is injected, and at the end of injection, prior to vulcanization, the supports are retracted. The voids left in the mold (1, 2) by the supports are instantly filled by the injected material. Protective sleeves (24, 25) are interposed between the rod and the said supports. |
