A molten metal holding and pouring box with a rectangular-shaped upper section and a pyramidal-shaped lower section provides a relatively constant flow of molten metal being poured from the box through each of two bottom nozzles into two separate foundry molds at the same time. The two bottom nozzles are contained in a unitary dual nozzle assembly that facilitates replacement as required by wear, or a change in location of the sprue cups in the two separate foundry molds being filled with molten metal.

A method for pouring a melt using a bottom-pouring-type ladle comprising a melt-pouring nozzle and a stopper rod, comprises an opening step, in which the stopper rod is separate from the nozzle; a first closing step, in which the stopper rod moves downward, such that a lower end portion of the stopper rod comes into contact with a tapered surface of the nozzle when the horizontal distance between their center axes becomes 2 mm or more; and a second closing step, in which a lower end portion of the stopper rod further moves downward along the tapered surface of the nozzle to close the nozzle.

A method for pouring a melt using a bottom-pouring-type ladle comprising a melt-pouring nozzle and a stopper rod, comprises an opening step, in which the stopper rod is separate from the nozzle; a first closing step, in which the stopper rod moves downward, such that a lower end portion of the stopper rod comes into contact with a tapered surface of the nozzle when the horizontal distance between their center axes becomes 2 mm or more; and a second closing step, in which a lower end portion of the stopper rod further moves downward along the tapered surface of the nozzle to close the nozzle.

A ventilating stopper rod has a temperature measurement function and is used for continuous casting. The stopper rod has a rod body, a rod head, a temperature measurement unit, a connecting pipe and exhaust passages; the rod body is a hollow structure; the upper end of the rod body is connected with the connecting pipe; the lower end of the rod body is connected with the rod head; the temperature measurement unit is used for measuring the temperature of the molten steel; the open end of the temperature measurement unit is connected with the rod head and communicates with the inner cavity of the rod body; the closed end of the temperature measurement unit extends out from the lower end of the rod head and is exposed from the rod head.

A pouring metallic plug stick clamping mechanism for cast steel wheels. The mechanism includes: a cast iron frame, a movable adjusting groove, an internal fixing shaft, a first white ceramic ball, a second white ceramic ball, a third white ceramic ball, a retaining spring, a pressure regulating bolt, a control press button, a sector shaped panel, a metallic plug stick, and a blocking iron piece.

A pouring metallic plug stick clamping mechanism for cast steel wheels. The mechanism includes: a cast iron frame, a movable adjusting groove, an internal fixing shaft, a first white ceramic ball, a second white ceramic ball, a third white ceramic ball, a retaining spring, a pressure regulating bolt, a control press button, a sector shaped panel, a metallic plug stick, and a blocking iron piece.

A composition for coating a refractory body. The composition comprises; an oxidizable component; and a phosphate frit comprising phosphorous oxide. The composition is substantially aluminum metal free.

A method of pouring molten metal from a molten metal holding and pouring box with a rectangular-shaped upper section and a pyramidal-shaped lower section provides a relatively constant flow of molten metal being poured from the box through each of two bottom nozzles into two separate foundry molds at the same time.

A method of pouring molten metal from a molten metal holding and pouring box with a rectangular-shaped upper section and a pyramidal-shaped lower section provides a relatively constant flow of molten metal being poured from the box through each of two bottom nozzles into two separate foundry molds at the same time.

A control pin for controlling the flow of molten metal through a down spout in a casting process is provided. The control pin comprises a body having an elongated shape, a lower portion insertable in the down spout, and a terminal end, opposite the lower portion. The body includes a central core, preferably a hollow tube or a rod of alumina or mullite; a heating element disposed around the central core, and an intermediate layer surrounding the central core and encasing the heating element, the intermediate layer being made of a solidified ceramic putty. Finally, an outer shell, preferably made of woven fiber reinforcing fabric in a matrix of ceramic, surrounds the intermediate layer.