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Non-graphite crucible for high temperature applications

  • US 5,333,844 A
  • Filed: 09/25/1992
  • Issued: 08/02/1994
  • Est. Priority Date: 09/25/1992
  • Status: Expired due to Fees
First Claim
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1. A multi-piece crucible for containing a melt of a material for high temperature applications comprising:

  • a tubular member and a bottom member, said tubular member having a centerline, an inner side wall, a lower portion, a thickness, and a lip, said lip being located on said inner side wall of said lower portion of said tubular member, said lip having a tapered side tapered in a downward direction toward said centerline of said tubular member, said bottom member having an outer side tapered in an upward direction toward said tubular member at an angle that provides a matching fit with said tapered side of said lip for enclosing said lower portion of said tubular member to form said crucible for containing said melt of said material in high temperature casting operations, said outer side of said bottom member contacting said tapered side of said lip forming a seal sufficient to contain said melt of said material used in said high temperature casting operations, said lip of said tubular member supporting said bottom member, said crucible being made of a material chemically inert to said melt and having structural integrity at the melting point temperature of said melt.

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