A molten metal pouring device is configured to pour molten metal into a mold cavity formed between an upper mold and a lower mold of a centrifugal casting machine. The molten metal pouring device includes a pouring unit including an end formed with a pouring hole, through which the molten metal is poured into the mold cavity, the end of the pouring unit being inserted into a riser formed along a rotation axis of the upper mold and being drawn out of the riser as the molten metal is poured, a stopper inserted into the pouring unit to open and close the pouring hole so as to adjust the flow of the molten metal, and a base unit, to which the pouring unit is mounted, the base unit being configured to lift the pouring unit up and down.

The invention relates to a method for the treatment of an alloy based on titanium aluminide. The method comprises the following steps, during which no hot isostatic pressing is carried out: obtaining a semi-finished product (7) produced by centrifugal casting, then heat treating the semi-finished product in order to obtain an alloy microstructure comprising gamma grains and/or lamella grains (alpha2/gamma).

A method for manufacturing a high-strength steel wooden golf head solves the difficulty in reducing the thickness of the striking faceplate of a conventional wooden golf head. The method includes placing a shell mold having a crucible portion and a cavity portion in communication with the crucible portion on a rotary table, placing a metal ingot in the crucible portion, followed by melting the metal ingot into molten metal in a vacuum environment, rotating the rotary table to cause molten metal to flow into the cavity portion under a centrifugal force, gradually slowing down the rotary table after the molten metal cools and solidifies, destroying the shell mold to obtain a casting including a cast product portion, and separating the cast product portion from the casting to obtain a casting product of the wooden golf head having a tensile strength of 240-350 ksi and a minimum thickness of 1.4-1.8 mm not including a groove depth of the striking faceplate.

A method for manufacturing a low-density steel wooden golf head solves the difficulty in reducing the thickness of a conventional wooden golf head. The method includes placing a shell mold having a crucible portion and a cavity portion in communication with the crucible portion on a rotary table, placing a metal ingot into the crucible portion, followed by melting the metal ingot in molten metal in a vacuum environment, rotating the rotary table to cause the molten metal to flow into the cavity portion under a centrifugal force, gradually slowing down the rotary table after the molten metal cools and solidifies, destroying the shell mold to obtain a casting including a cast product portion, and separating the cast product portion from the casting to obtain a casting product of a wooden golf head having a density of 6.5-7.6 g/cm.sup.3 and a minimum thickness of 0.4-0.6 mm.

A method of assembling a centrifugal casting apparatus includes positioning a wedge on a rotatable axis and positioning at least two molds into sealing engagement with the wedge. Each of the at least two molds includes a front face and defines at least two cavities extending from the front face into the mold. A sprue chamber is defined and is structured to receive molten material, and at least a portion of the sprue chamber is defined by at least a portion of the front faces of the at least two molds.

A method includes placing a shell mold with a crucible portion and a casting portion in communication with the crucible portion on a rotary table, with the heterogeneous material including an embedded portion inlaying in the casting portion of the shell mold and a non-embedded portion locating in a cavity of the casting portion, placing a metal ingot into the crucible portion, followed by melting the metal ingot into molten metal in a vacuum environment, rotating the rotary table, causing the molten metal to flow into the cavity, destroying the shell mold after the molten metal solidifies to obtain a casting including a cast product portion separated from the casting to obtain a cast product of a golf club head, and removing the embedded portion of the heterogeneous material protruding from an outer periphery of the cast product of the golf club head.

The present disclosure relates to an apparatus to cast tubes of sluggish material and a process thereof. The apparatus comprises at least one cylindrical casting mold, heating means, at least one set of rollers, a driving member, at least one tank, a spray nozzle, at least one tundish, a reinforced snout, cooling means and a drive control unit. The mold is configured to receive the molten sluggish material therein. The rollers are configured to abut an operative outer surface of the casting mold. The driving member is configured to spin the casting mold in an operative configuration of the apparatus to cast the tube of a predetermined inner diameter (ID), outer diameter (OD) and a predetermined length. Since, the addition of fluidity enhancer increases the fluidity of the molten sluggish material inside the mold, advantageously the smaller diameter of the tubes are easily produced by this process.

A method of refurbishing a steel-shell brake drum that includes superheating a worn-out brake drum until the worn-out brake drum is glowing hot. The worn-out brake drum includes a steel shell and a worn-out, gray-iron layer bonded to an inside surface of the steel shell. The method further includes centrifugal casting additional molten iron to the gray-iron layer to increase the radial thickness of the gray-iron layer.