A DEVICE AND A METHOD FOR TEMPERING STEEL TUBES

摘要

A device for tempering steel tubes comprising an immersion tank (6) for cooling fluid, a chassis (2) for horizontally supporting the tube (5) to be tempered in the tank (6), means for displacing the chassis (2) from a suspended position over the tank to a second position in which the tube is inside the tank, means (3i, 4i) for maintaining the tube on the chassis, so that it does not float and a cooling fluid injection nozzle (1) abuttable against an end of the tube (5) for injecting the cooling fluid into the tube. The invention provides an injection nozzle support actuable (9) for coupling the nozzle (1) to the end of the tube (5) in the suspended position and allowing it to accompany the tube to the second position. The invention further refers to a method for tempering steel tubes, in which dipping in, and injection of cooling fluid are effected in a substantially simultaneous manner.