Apparatus for the inner and outer quenching of tubular pieces
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United States of America Patent
Stats
-
Jul 18, 1989
Grant Date -
N/A
app pub date -
Jan 7, 1988
filing date -
Jan 8, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for providing the outer quenching and the inner quenching of tubular pieces, notably of steel tubes, characterized in that it includes successively, in the advancement direction of the tubes: slanting rollers allowing the tubes delivered continuously to move forward successively by rotating about their axis; an outer quenching system; a clamping and locking system for the tube; a retractable carrier supporting an injection lance for carrying out the inner quenching, said carrier being provided with said clamping and locking system for the tube; means allowing the carrier to move backward with the tube clamping system in order to accompany said tube in movement while the outer quenching is carried out; and retractable rollers which come in position to support the tube as the carrier moves backward while disengaging the tube from the outer quenching system.
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