| 摘要 |
1,232,357. Continuous casting. REPUBLIC STEEL CORP. 30 May, 1969 [4 June, 1968], No. 27619/69. Heading B3F. [Also in Division E2] A starter bar has a head 25 joined to the rest of the starter bar 26 by a bolt 39. The head has two parts 27, 31 joined by bolts 38 and defines a cavity 32 in which molten metal solidifies. The cavity includes expendable metal bars 42, heat sink bars 43 and a cavity bottom protecting plate 44 which all become incorporated in the ingot cast. Cavities 45 are provided by which the part 27, 31 may be gripped by a tool after casting and after removing bolts 38 to remove the parts from the cast ingot. The rest of the starter head consists of longitudinally extending members 50 (Fig. 4) connected by elements 26. The elements 26 are connected to the members 50 by bolts 63 and the members 50 may be disconnected from each other by rotating shafts 55. In Fig. 7 the connecting elements are shown in detail, each having two parts A, B, with tangs 57, 58 which are bolted at 62 to the members (50, not shown) making up the starter bar. A centre block 64 mounted on a shaft 68 is spring attached to part A at 66. A fork 70 on the block 64 engages a shaft 77 journalled in the part B. The shaft has flattened sides so that by its rotation about 90 degrees the parts A and B can be separated. |
