| 摘要 |
<p>The application discloses a core for a fire-resistant door with wooden stiles (10, 12) and rails (14, 16) forming the peripheral edge and a slab (4) filling the space therebetween comprising a cured mixture of magnesium oxychloride with inclusions of glass fibre strands and perlite. Also disclosed is a method of making same in which the wooden stiles (10, 12) and rails (14, 16) form the sides of a mold and the core (2) is formed by pouring a mixture on a flat surface with a non-adhering coating and curing the core in place so that it bonds to the stiles (10, 12) and rails (14, 16).</p> |
