METHOD OF PRODUCING SILICON-CONTAINING ALUMINUM ALLOY INGOT
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United States of America Patent
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Issued Date -
Nov 5, 2015
app pub date -
Nov 28, 2013
filing date -
Dec 10, 2012
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
Provided is a method of producing a silicon-containing aluminum ingot capable of preventing filter clogging that requires suspension of casting, suppressing aluminum loss, and reducing a content rate of phosphorus as an impurity in the obtained silicon-containing aluminum alloy ingot. The production method of the present invention includes a water-rinsing step for subjecting a silicon mass containing phosphorus as an impurity to a water-rinsing treatment, a molten metal formation step for obtaining molten metal by introducing, into a melting furnace, an alloy material including at least the silicon mass obtained through the water-rinsing step and an aluminum material and and melting the alloy material, and a casting step for obtaining a silicon-containing aluminum alloy ingot by casting the obtained molten metal.
First Claim
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