Process for producing a liquid-solid metal alloy phase for further processing as material in the thixotropic state
First Claim
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1. Process for producing a liquid-solid metal alloy phase for further processing as material in the thixotropic state, which comprises:
- maintaining an alloy melt having a solidified portion of primary crystals at a temperature between solidus and liquidus temperature of the alloy;
producing mechanical vibrations in the frequency range between 10 and 100 KHz in the liquid-solid metal alloy phase; and
molding the primary crystals, which have a structure of degenerated dendrites or casting grains of essentially globular shape, into an ingot.
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Abstract
An alloy melt having a solidified portion of primary crystals is maintained at a temperature between solidus and liquidus temperature of the alloy. The primary crystals are molded to give individual degenerated dendrites or cast grains of essentially globular shape and hence impart thixotropic properties to the liquid-solid metal alloy phase by the production of mechanical vibrations in the frequency range between 10 and 100 kHz in this liquid-solid metal alloy phase.
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15 Claims
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1. Process for producing a liquid-solid metal alloy phase for further processing as material in the thixotropic state, which comprises:
- maintaining an alloy melt having a solidified portion of primary crystals at a temperature between solidus and liquidus temperature of the alloy;
producing mechanical vibrations in the frequency range between 10 and 100 KHz in the liquid-solid metal alloy phase; and
molding the primary crystals, which have a structure of degenerated dendrites or casting grains of essentially globular shape, into an ingot. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- maintaining an alloy melt having a solidified portion of primary crystals at a temperature between solidus and liquidus temperature of the alloy;
Specification