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The Pechiney Jetcleaner - New Equipment Technology for In-line Treatment

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The Pechiney Jetcleaner - New Equipment Technology for In-line Treatment of Molten Aluminum Alloys

John V. Griffin, Pechiney Aluminum Engineering, Inc.

Track: BILLET PROCESS AND EQUIPMENT -  Molten Metal Treatment

ABSTRACT --- The Pechiney Jetcleaner is an in-line trough degassing system,
which removes hydrogen with “jets” of inert process gas at a high velocity and
without the conventional rotary type impellers. The refining process, in a dense
distribution of gas bubbles discharged into the melt, creates a high turbulence,
which reduces the required metal residence time for effective degassing. Hydrogen
and particulate reductions are maintained at levels comparable to spinning impeller
systems, thus meeting industry requirements. The Pechiney Jetcleaner process
provides production flexibility without metal retention between casting periods and
no downtime or scrap loss during alloy changes. The Jetcleaner is a sealed reactor
with no moving parts in the bath, resulting in lower capital and operating costs.
Today’s Jetcleaner will process metal flow of up to 25 metric tons per hour.

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