| 摘要 |
PCT No. PCT/EP84/00063 Sec. 371 Date Nov. 7, 1984 Sec. 102(e) Date Nov. 7, 1984 PCT Filed Mar. 6, 1984 PCT Pub. No. WO84/03460 PCT Pub. Date Sep. 13, 1984.A process of using a thermally insulating board, made of a homogeneous mixture of expanded perlite particles and cellulosic and/or mineral and/or ceramic fibers, bonded together, comprising placing on the surface of a molten steel mass, in direct contact with the surface, so as to cover substantially all the surface. According to a preferred embodiment, the board consists of 51 to 80% by weight of expanded perlite particles, 15 to 39% by weight of cellulosic and/or mineral fibers and 5 to 10% by weight of binder. |
