Method for vertically and continuously casting beryllium copper alloys
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United States of America Patent
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Feb 25, 1992
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N/A
app pub date -
Jun 19, 1991
filing date -
Jun 19, 1991
priority date (Note) -
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Abstract
A casting nozzle is first arranged in a melt of the beryllium copper alloy in a mold. This casting nozzle has a flow rate-regulating mechanism which is arranged in the melt in the mold and capable of regulating the flow rate of the melt to be poured into the mold. The nozzle is opened in the melt inside the mold. A melt is poured into the mold through the nozzle, and continuously cast in a casting temperature range from a liquidus temperature of the beryllium copper alloy to a temperature higher than the liquidus temperature by 50.degree. C. Thereby, the beryllium copper alloy having a crystalline structure consisting essentially of isometric crystals can be obtained.
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