Device for filtering and adding grain refining agent to metal melts
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United States of America Patent
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N/A
Issued Date -
May 16, 2002
app pub date -
Nov 8, 2001
filing date -
Nov 9, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a device for filtering and adding grain refining materials to metal melts with a first filter (10) and a feed for a grain-refining material, where the first filter has a porous filter medium. The filter efficiency of the first filter (10) is substantially improved according to the invention by arranging the feed for the grain-refining material in the direction of flow after the first filter (10). The undissolved impurities introduced via the grain-refining material are removed by positioning a second filter (16) in the direction of flow after the feed for the grain-refining material.
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