REFRACTORY PLATE

摘要

The invention concerns a refractory plate, in particular for a system of liquid molten metal flow, comprising at least two zones when considering the main plane of the plate: a passage zone (1) with at least a passage hole (3) for said liquid metal and a composition resistant to stresses resulting from the flow of the liquid metal through the hole (3), and a manoeuvring zone (2) designed to stop the liquid metal flow, and a composition, different from that of the passage zone (1), selected to resist in particular thermal shocks when the flow stops, the zones taking up the entire thickness of the plate wherein the securing link between the passage zone (1) and the manoeuvring zone (2) results from joint pressing, in a common mould, the composition of the passage zone(s) and the composition of the manoeuvring zone (2), the compositions having previously been deposited into the mould respectively along the zones, followed by consolidating heat treatment. The invention also concerns a method for making said plate.