IN-LINE HEAT TREATMENT EQUIPMENT AND IN-LINE HEAT TREATMENT METHOD OF LOOSE COIL

摘要

PROBLEM TO BE SOLVED: To provide in-line heat treatment equipment capable of adequately and reliably conveying a loose coil when manufacturing a wire by allowing the loose coil in an austenitic state to be subjected to the cooling treatment or the isothermal treatment.;SOLUTION: The in-line heat treatment equipment 1 of a loose coil W has a configuration in which a cooling tank 31 filled with a molten salt 30 and a plurality of flat roller 52 penetrating the cooling tank 31 in the width direction orthogonal to the conveying direction are arranged in parallel along the conveying direction, and comprises a flat roller group 51 for conveying the loose coil W while being immersed in the molten salt 30 in the cooling tank 31, a receiving tank 32 which is arranged below the cooling tanks 31 to receive the molten salt 30 flowing out of the cooling tank 31, and a circulation means 35 for returning the molten salt 30 of the receiving tank 32 to the cooling tank 31.;COPYRIGHT: (C)2007,JPO&INPIT