Molten metal holder furnace and casting system incorporating the molten metal holder furnace

Patent · Tue Feb 11 00:00:00 EST 2003

OSTI ID:875030

Kinosz, Michael J ^[1]; Meyer, Thomas N ^[2]

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1. Apollo, PA
2. Murrysville, PA

A bottom heated holder furnace (12) for containing a supply of molten metal includes a storage vessel (30) having sidewalls (32) and a bottom wall (34) defining a molten metal receiving chamber (36). A furnace insulating layer (42) lines the molten metal receiving chamber (36). A thermally conductive heat exchanger block (54) is located at the bottom of the molten metal receiving chamber (36) for heating the supply of molten metal. The heat exchanger block (54) includes a bottom face (65), side faces (66), and a top face (67). The heat exchanger block (54) includes a plurality of electrical heaters (70) extending therein and projecting outward from at least one of the faces of the heat exchanger block (54), and further extending through the furnace insulating layer (42) and one of the sidewalls (32) of the storage vessel (30) for connection to a source of electrical power. A sealing layer (50) covers the bottom face (65) and side faces (66) of the heat exchanger block (54) such that the heat exchanger block (54) is substantially separated from contact with the furnace insulating layer (42).

• DOE Contract Number: 86X-SU545C
• Assignee: Alcoa Inc. (Pittsburgh, PA)
• Patent Number(s): US 6516868
• Application Number: 09/769944
• OSTI ID: 875030
• Country of Publication: United States
• Language: English

Related Subjects

molten
metal
holder
furnace
casting
incorporating
bottom
heated
12
containing
supply
storage
vessel
30
sidewalls
32
wall
34
defining
receiving
chamber
36
insulating
layer
42
lines
thermally
conductive
heat
exchanger
block
54
located
heating
65
66
top
67
plurality
electrical
heaters
70
extending
projecting
outward
connection
source
power
sealing
50
covers
substantially
separated
contact
heat exchanger
molten metal
electrical power
thermally conductive
bottom wall
storage vessel
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