PROTECTIVE ALLOY ADDITION APPARATUS

摘要

A protective alloy addition apparatus is suitable for installation on a refractory lined rod positioned in a pouring ladle. The apparatus comprises a base member adapted for positioning on the rod and an outer sleeve and inner concentric sleeve positioned on the base member so as to form a first chamber between the sleeves and a second chamber radially inward of the inner sleeve. A protecting first addition agent is positioned in the first chamber and an alloy addition agent to be protected is positioned in the second chamber. The addition agent to be protected is also topped and bottomed with the protecting addition agent in the second chamber.