ろ過材へのアルミニウム溶湯の含浸性に及ぼすろ過槽内流れの影響

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  • Effect of flow behavior in filter box on penetration of molten aluminum into rigid media tube filter
  • ロカザイ エ ノ アルミニウム ヨウトウ ノ ガンシンセイ ニ オヨボス ロカソウ ナイ ナガレ ノ エイキョウ

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Rigid Media Tube Filter (RMF) is the most reliable treatment method to remove impurities from molten aluminum. The lifetime of RMF depends upon the amount of impurities normally filtered, but sometimes the molten aluminum insufficiently penetrates the RMF. The result of analyzing a half used cartridge insufficient positioning, namely, the centre and upper section of the cartridge show the lowest penetration ratio. We simulated a flow vector and velocity in a filter box by the Finite Element Method (FEM). The result of FEM shows that flow vector in the center of the filter box has the same result, slow velocity near the inside tubes, regardless of a inlet position. And also, the flow velocity at the tube's center is slower than that at both the inlet and outlet. The FEM result is similar to the actual result of the penetration ratio. It is assumed that low aluminum head pressure causes a lower penetration ratio in the upper section. In conclusion, we get similar result from FEM analysis and actual penetration ratio, however, penetration ratio is influenced by operational conditions and not merely flow in the filter box.

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  • 軽金属

    軽金属 60 (7), 321-326, 2010

    一般社団法人 軽金属学会

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