Method and apparatus for rapid quenching on tape, a metal or metal alloy in liquid state.

摘要

1. Apparatus for the hypertempering of a metal or a metal alloy comprising a belt (1), driven at high speed, means (4, 5) for throwing the said metal or said alloy in the liquid state in the direction of this belt (1) and means (12) for spraying a cooling liquid in the direction of the belt (1), this apparatus being characterised in that the said spray means (12) are directed towards the face of the belt (1) opposite that onto which the metal or alloy is thrown in the liquid state and that it also comprises, in the vicinity of the region where the spraying is carried out, a box (11) able to produce a cushion of gas with a Coanda effect, and downstream of the said spray means (12), means (13, 14, 16) for the discharge of the excess sprayed liquid, the said box (11) extending at least as far as the region of the said discharge means (13, 14, 16).