Refractory heat-insulating materials

Details Refractory heat-insulating materials Refractory heat-insulating materials

C - Chemistry, Metallurgy

04

B

400/1309, 400/13

C04B 35/04 (2006.01) B22D 41/02 (2006.01) C04B 35/043 (2006.01) C04B 35/20 (2006.01) C08K 3/22 (2006.01)

Patent

CA 1045261

A B S T R A C T Lining slabs for prolonged contact with molton metals, e.g. for use in tundishes, are made from a refractory heat- insulating composition comprising by weight: 0 to 1% bentonite clay 0 to 4% cellulosic fibre 4 to 8% synthetic resin binder 0 to 7% refractory fibrous material, and balance to 100% a mixture of particulate magnesia and particulate olivine, the weight ratio of magnesia : oliving being from 1:10 to 4:1 and the composition containing at least 1% by weight of fibrous material.

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