| 摘要 |
PROBLEM TO BE SOLVED: To make each scrap amount related to each brand high in accuracy by placing scrap of a brand having little influence on a molten metal component on a most subsequent rank, correcting charging expected weight planned at the beginning and carrying the expected weight. SOLUTION: Repeated scrap 4 is successively carried from a storing place for corresponding brand in a yard for one brand toward a bucket 16. Carrying amount to the bucket 16 for the brand is repeatedingly carried by making a scrap holding function of a lifting magnet 10 into a maximum state. Only when the last carrier for each brand is performed, voltage of the lifting magnet 10 is adjusted to voltage corresponding to weight of insufficient scrap and insufficient scrap is carried. As for scrap of the last brand, scrap of a brand having little influence on molten metal component is selected among plural kinds of brands. This scrap is placed on a most subsequent rank, and charging expected weight planned at the beginning for the scrap is corrected so that scrap within the bucket 16 may be weight corresponding to expected total weight and is carried.
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