METHOD FOR PRODUCING ALUMINUM ALLOY RAW MATERIAL, METHOD FOR PRODUCING ALUMINUM ALLOY INGOT, METHOD FOR PRODUCING ALUMINUM ALLOY PLATE, METHOD FOR PRODUCING ALUMINUM ALLOY SUBSTRATE FOR PLATING, METHOD FOR PRODUCING ALUMINUM ALLOY SUBSTRATE FOR MAGNETIC DISK, METHOD FOR PRODUCING MAGNETIC DISK, AND MAGNETIC DISK
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United States of America
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Issued Date -
Dec 19, 2024
app pub date -
Aug 29, 2024
filing date -
Aug 29, 2024
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Abstract
An example method for producing an aluminum alloy raw material, wherein in a separation step of reusing, as a recycled material, at least one of an intermediate material and a finished product each comprising an aluminum alloy disk and an underlayer, for at least part of an aluminum alloy material and heating the aluminum alloy material comprising the recycled material to separate the aluminum alloy disk and the underlayer, and the aluminum alloy material comprising the recycled material is heated and held at 480° C. or higher and 590° C. or lower for more than 1 hour.
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