| 摘要 |
<p>1460109 Continuous casting; making wire or sheet metal SECIM and SOCIETE DE VENTE DE L'ALUMINIUM PECHINEY 31 May 1974 [26 June 1973] 24244/74 Headings B3A and B3F In a continuous casting machine with a mould formed by a grooved wheel 2 and belt 3 and with two or three wheels for the return path of the belt, the point where the belt 3 leaves the wheel 2 can be varied (by movement of the bearing of an adjacent return wheel 7). By this means, the length of the mould and therefore the temperature of the east strand 10 leaving the mould can be determined, dependent also on the determinable speed of the spraycooled wheel 2. The strand 10 is passed to rolling stands at the required temperature and speed, for working to produce wire or sheet, e.g. of Al or Al alloy. The displacement of the wheel 7 may be automatic in dependence on the temperature of the casting at the exit from the mould or at the inlet to the roll stand. Details of alloys, casting and rolling speeds and temperature and power consumption are given. As shown, the bearing of the wheel 7 is displaced by a screw which may be pivoted, with the bearing guided or with springs at one end of the screw so that the belt tension is maintained. Alternatively, adjustment of the position of a wheel 5 by a screw jack 8 may maintain tension. In another embodiment, the bearing of the wheel 7 is movable and fixable in a guide such as a slot which may be arcuate. A gear rack may move the bearing and the tensioning movement of the wheel 5 may be consequent on the displacement of the wheel 7.</p> |
