Title: Method and apparatus for quenching pipe

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Abstract: A pipe is heated with its longitudinal axis positioned vertically and then lowered from a furnace. As the pipe emerges from the furnace, it engages an inner ring of rollers and an outer ring of rollers which press against the hot pipe to shape it into a round configuration and to restrain the pipe during the initial impingement of quench fluid. As the pipe continues downward it is quenched by impinging the inside and outside surfaces with converging cones of high intensity quench liquid forming impingement rings on the inner and outer surfaces of the pipe which are opposite. The cooling by application of additional fluid and restraint by rings of rollers are continued after passage through the high intensity zone until the pipe reaches ambient temperature.


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