| 摘要 |
<p>1283242 Continuous casting SOUTHWIRE CO 13 Oct 1969 [15 Oct 1968] 50099/69 Heading B3F [Also in Division F4] A pouring spout, for use in pouring molten metal from a pouring vessel to a continuous casting machine, comprises a graphite tube 12 having a coating of mortar 13 applied to the external surface of the tube to inhibit oxidation of the surface. The mortar 13 includes a large percentage of silica, and smaller percentages of aluminium oxide, lithium oxide and alkaline earth, with additives including ferrous oxide, copper oxide, magnesium oxide and titanium oxide.</p> |
