Patent ID: 6135197
Filing Date: 2000-10-24
Classification: B22D

Abstract:
A two-material mold for the hot-top continuous casting of metals, comprising: a metal body which is vigorously cooled and defines a passage for metal to be cast which, on contact with its internal wall, undergoes peripheral solidification, and a feed head made of a thermally insulating refractory which sits on top of the metal body and is adapted to contain molten metal introduced into the mold, the feed head being formed by two stacked internally-aligned and separable refractory components, including an upper bush made of a refractory having high thermal insulation properties, and a lower annulus made of a refractory having higher mechanical strength properties than said upper bush, the lower annulus having a reinforcing member surrounding its exterior, said member having a height less than that of the annulus and said annulus having opposing end faces for engaging said upper bush and said metal body, respectively, and a symmetrical shape with respect to a plane extending between and parallel to said end faces such that either end face may engage said metal body.