| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a room temperature shrinking rubber unit short in manufacturing and delivery time, at a low in manufacturing cost and having good quality by forming an outer semiconductor layer easily and shortening the time required for formation and making the thickness be hardly varied. <P>SOLUTION: The room temperature shrinking rubber unit is provided with an inner semiconductor layer 1 formed principally of rubber material such as ethylene propylene rubber (EPR), silicon rubber (SR), a reinforcing insulation layer 3, an outer semiconductor layer 11, stress cone parts 7 and 7 on the opposite end sides of the reinforcing insulation layer 3, and parts 9 and 9 provided in the vicinity of both stress cone parts 7 and 7 of the outer semiconductor layer 11 in order to separate the outer semiconductor layer 11 in the longitudinal direction. The inner semiconductor layer 1, the reinforcing insulation layer 3, the outer semiconductor layer 11 and the stress cone parts 7 and 7 are molded into a substantially tubular one piece. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
