Patent ID: 6660220
Filing Date: 2003-12-09
Classification: B22D,C21C

Abstract:
Apparatus to deliver inert gas at an incrementally adjusted target flow rate to a discharge passageway in a slide gate that drains liquid steel from a tundish into a continuous caster, comprising:a) a gas feed including an inert gas supply, a gas feed line extending between said inert gas supply and the discharge passageway to deliver an incoming gas flow to the discharge passageway, a gas flow regulator, and a pressure gauge; and b) a gas feed flow control that detects an amount of incoming gas flow lost through leaks in said apparatus, and incrementally adjusts said gas flow regulator in response to said detected amount of incoming gas flow lost through leaks so that said incoming gas flow is adjusted to deliver said target flow rate of inert gas to the discharge passageway.