Telephone cable splices
    1.
    发明授权
    Telephone cable splices 失效
    电话线接头

    公开(公告)号:US4392014A

    公开(公告)日:1983-07-05

    申请号:US255781

    申请日:1981-04-20

    摘要: A splice between ends of a pair of telecommunications cables is encapsulated in a thermoset foam. To encapsulate the splice it is positioned within a mold with the cables extending through apertures in the mold. At the apertures the cables are wrapped with an open cell foam material to block the cavity ends. A foam base material is then mixed with an activating agent which includes both a heat activated blowing agent and a material which reacts exothermically with the foam base material. The mixture is deposited within the mold and the mold closed. The mixture then foams to fill the mold and rapidly cures. The resulting joint is light, durable, waterproof and re-enterable.

    摘要翻译: 一对通信电缆的端部之间的接头被封装在热固性泡沫中。 为了封装接头,将其定位在模具内,其中电缆延伸穿过模具中的孔。 在孔处,电缆用开孔泡沫材料包裹以阻挡空腔端部。 然后将泡沫基材与活化剂混合,活化剂包括热活化发泡剂和与泡沫基材物质放热反应的材料。 混合物沉积在模具内,模具封闭。 然后混合物泡沫以填充模具并迅速固化。 所得的接头轻便耐用,防水,可重新进入。