| 摘要 |
PURPOSE:To obtain a thin metallic plate having a good surface characteristic with a titled device which has a pair of water-cooled casting rolls in a molten metal bath by providing heated refractory material near the part where the surface of the molten metal and said rolls contact. CONSTITUTION:A molten steel 10 is supplied into a tundish 1 and is continuously poured via pouring nozzle 2 into a molten metal dam 4 by a specified amt. The molten steel is reserved in the part enclosed of casting rolls 3, 3' and the dam 4. The molten steel 11 contacts the surfaces of the rolls 3, 3', by which the molten steel is cooled and solidified shells 12, 12' are formed. The sheels move downward according to revolutions 16, 16' of rolls, by which a sheet of a thin plate 13 is manufacture. Heated refractory materials 6, 6' contg. heating elements such as nichrome wires or the like are installed near the part where the surface of the steel 11 and the rolls 3, 3' contact so that the shells 12, 12' start solidification from below the surface of the molten steel 11. The surface of the plate 13 is thus kept free from the influence by the waving on the surface of the molten steel and the surface characteristic of the plate 13 is improved. |
