| 摘要 |
An object such as a fuse is enclosed within a homogeneous block of microporous thermal insulation material by a method which includes forming first and second blocks (12,14) of insulation material having a relatively low density, arranging the object (15) between co-operating faces of the blocks, and compacting the blocks around the object so as to cause the blocks to merge and to form a homogeneous block of microporous thermal insulation material having a relatively high density. The first and second blocks may be incorporated into first and second housings (11,13) respectively, one of the housings being provided with a protruding tab (17) and the other of the housings being provided with a corresponding slot (18). |
