Patent ID: 6446704
Filing Date: 2002-09-10
Classification: B22D

Abstract:
In a continuous casting mold for metal, a system for stopping a flow of molten metal through a mold cavity, comprised of:a. a metal casting mold with a metal flow cavity; b. a metal flow stop device which corresponds to the metal flow cavity; c. a source of a biasing force, disposed to impart the biasing force on the metal flow stop device toward its blocking the metal flow cavity; d. a source of a balancing force, disposed in opposition to the biasing force on the metal flow stop device; e. a sacrificial sensor operatively connected to the source of the balancing force, and positioned in molten metal detecting disposition to the outlet of the mold and to be destroyed in the presence of molten metal; and wherein destruction of the sacrificial sensor sufficiently reduces the balancing force, thereby allowing the biasing force to move the metal flow stop device into the metal flow cavity.