| Patent application number | Description | Published |
|---|
| 20080257517 | MOLD ASSEMBLY FOR USE IN A LIQUID METAL COOLED DIRECTIONAL SOLIDIFICATION FURNACE - A mold assembly for a liquid metal cooled directional solidification furnace having a cooling chamber provided with liquid metal and a heating chamber includes a mold member having a main body portion that defines an interior mold cavity. The mold member is adapted to be positioned in the heating chamber. The mold assembly also includes a chill-plate formed from a material having a thermal diffusivity a 600° K greater than approximately 10 E-6 m2/s, inert to at least one of molten tin and molten aluminum and adapted to be at least partially immersed in the liquid metal. The chill-plate includes a main body portion having a first surface extending to a second surface through an intermediate portion. The chill-plate is adapted to establish a thermal gradient between the mold member and the heating chamber. | 10-23-2008 |
| 20090126893 | Liquid Metal Directional Casting Process - Processes for directionally casting liquid metal to form an articles can include compressing a seal intermediate a mold chill plate and a mold assembly, wherein the seal circumscribes a shell mold in the mold assembly; filling the shell mold in the mold assembly with molten metal; immersing the mold assembly into a liquid metal cooling bath from a bottom portion to a top portion of the mold assembly; and transmitting heat from the mold assembly to the liquid metal cooling bath to solidify the molten metal from the bottom portion to the top portion of the mold assembly. | 05-21-2009 |
| 20090126894 | LIQUID METAL DIRECTIONAL CASTING APPARATUS - An apparatus for directionally casting articles generally includes a seal between a mold assembly and chill plate. In one embodiment, the mold assembly includes a skirt laterally extending from at least one shell mold, wherein the skirt includes a channel disposed in a bottom surface that is configured to surround the at least one shell mold. A chill plate fastened to a bottom of the mold assembly and includes a boss having a shape complementary to the channel, wherein the boss of the chill plate is seated within the channel of the mold assembly to define the seal about the at least one shell mold. | 05-21-2009 |
| 20090205799 | CASTING MOLDS FOR USE IN A DIRECTIONAL SOLIDIFICATION PROCESS AND METHODS OF MAKING | 08-20-2009 |
| 20090314390 | Alloy Castings Having Protective Layers and Methods of Making the Same - An alloy casting having a protective layer disposed on a surface of the casting is provided. The protective layer is resistant to liquid metal attack, and wherein the protective layer includes an oxide of an element present in the alloy. A method of forming a protective layer on a surface of the alloy casting is also provided. The method includes disposing the alloy in a mold, and oxidizing an element of the alloy to form a protective layer on the surface of the casting. | 12-24-2009 |
