Method and equipment for continuous or semicontinuous casting of metal

摘要

To continuously or semi-continuously cast aluminium in a directly cooled process using a mould or chill with a mould cavity provided with an inlet connected to a molten metal store 18, 23 and an outlet with devices 26 for cooling the metal so that an elongated object 25 is cast through the outlet, the metal is supplied to the mould from the metal store via a metal supply system 23, 27 that is sealed from the environment so that by means of counter-pressure the gas pressure over the metal level is regulated in relation to the metallostatic pressure in the mould so that the metallostatic pressure at the contact point (the solidification zone) against the mould is substantially zero during casting.