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Spray casting of gas atomized molten metal to produce high density ingots
| Details |
Inventors: Clark, Ian Sidney Rex; Pargeter, John Kenneth; Ward, John Oliver;
Assignee: The International Nickel Company, Inc. (New York, NY)
Primary Examiner: Husar; Francis S.
Assistant Examiner: Hampilos; Gus T.
Attorney, Agent or Firm: Kenny; Raymond J., MacQueen; Ewan C.
A process is disclosed for producing a high density spray cast metal body from a highly energetic atomized metal stream by directing said atomized stream into the interior of a mold and causing said stream to scan and fill said mold interior by effecting relative movement between said atomized metal stream and said mold, thereby producing a fine grained spray cast metal body of high density. |
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DETAILED DESCRIPTION What is claimed is: 1.
A process for producing a spray cast metal ingot characterized by high density in the as-spray cast condition of substantially over 90% of the actual density of the metal which comprises, providing a highly energetic conically configurated outwardly expanding atomized metal stream having an included angle of substantially less than 25.
degree.
, directing said atomized stream of metal to the interior of an ingot mold with the longitudinal axis of said stream disposed at an acute angle to the interior wall of said mold, while effecting relative transverse movement between said atomized metal stream and said mold, such that said stream is caused to scan the interior of said mold, and filling said mold while scanning the interior thereof.
2.
The process of claim 1, wherein said highly energetic atomized metal stream is produced by impinging a teeming metal stream with an atomizing fluid flowing at supersonic velocity and coaxially in the direction of said teeming metal stream.
3.
The process of claim 2, wherein the included angle of said conically configurated metal stream does not exceed about 20.
degree.
.
4.
The process of claim 3, wherein said included angle ranges from about 5.
degree.
to 15.
degree.
.
5.
The process of claim 4, wherein said included angle ranges from about 5.
degree.
to 10.
degree.
.
6.
The process of claim 2, wherein the temperature of the atomized metal ranges from about 85% of its absolute melting point to about its melting point.
7.
The process of claim 2, wherein the axis of said metal stream is disposed at an acute angle to the interior wall of said mold of about 5.
degree.
to 45.
degree.
.
8.
A process for producing a spray cast metal ingot characterized by high density in the as-spray cast condition of substantially over 90% of the actual density of the metal which comprises, providing a highly energetic conically configurated outwardly expanding atomized metal stream produced by impinging a teeming metal stream with a non-oxidizing atomizing gas flowing at supersonic velocity and coaxially in the direction of said teeming metal stream such that the resulting atomized metal stream has an included angle of substantially less than 25
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Heat Accumulators 
