SUBMERGED ENTRY NOZZLE

摘要

A pour tube for casting molten metal is adapted to reduce turbulence and mold disturbances, thereby producing a more stable, uniform outflow. The pour tube has a central longitudinal axis and includes a bore in communication with a port distributor having a greater radius with respect to the longitudinal axis than does the bore. Exit ports provide fluid communication between the port distributor and the exterior of the device. Each of a pair of larger exit ports has a larger cross-sectional area than does either of a pair of smaller exit ports.

主权项

1. A pour tube for use in casting a stream of molten metal from an upstream position to a downstream position, the pour tube having a pour tube central longitudinal axis and comprising an inner surface defining a bore and a port distributor in fluid communication, and an outer surface comprising a first pair of larger exit ports having a cross-sectional area and a horizontal width, and comprising a pair of smaller exit ports having a cross-sectional area and a horizontal width, wherein the larger exit ports and the smaller exit ports are in fluid communication with the port distributor, wherein the port distributor is located downstream of the bore, wherein the port distributor has a greater radius with respect to the longitudinal axis than does the bore, and wherein the larger exit ports have a cross-sectional area larger than the cross-sectional area of the smaller exit ports.