| 摘要 |
1480849 Refractory articles CHAS TAYLORS SONS CO 30 Sept 1974 [1 Oct 1973 4 March 1974] 42422/74 Heading ClJ A composition which may be fired to produce ceramic refractory articles such as bricks comprises, by weight, 59-98% tabular alumina, 0-10% calcined alumina, 1-25% chromic oxide, 1-18% phosphate compound, 0-4% bentonite and 0-12% water. The phosphate compound may, for example, be phosphoric acid, mono-aluminium phosphate, mono-ammonium phosphate, or aluminium dihydrogen orthophosphate. The unfired compositon may also be used as a ramming mix or as a plastic mix. |
