Apparatus for inside-outside tube quenching
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United States of America Patent
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-
May 30, 1989
Grant Date -
N/A
app pub date -
Feb 20, 1987
filing date -
Feb 20, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An inside-outside quench arrangement is disclosed for long steel pipe which utilizes a tangential quench arrangement to cool the pipe's outside surface and an axial flow nozzle to cool the pipe's inside surface at approximately the same cooling rate. The O.D. quench arrangement includes a manifold carrying jet nozzles circumscribing the pipe which can be pivoted apart to permit a four-bar linkage mechanism to smoothly and efficiently transfer the pipe into and out of the arrangement for quenching. A roller drive arrangement rotates the pipe in a longitudinally stationary position to minimize pipe bow and enhance pipe cooling.
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