Patent ID: 8062028

Claim:
A heat treatment apparatus for oxide superconducting wire, equipped with a heat treating furnace and a cylindrical rotator which is rotatably arranged about a horizontal rotating axis in an inside of this heat treating furnace for winding the wire to be heat-treated, wherein: said rotator is equipped with a cylindrical body which has a large number of through-holes, a lid for sealing one end of this cylindrical body, and a lid connecting with a gas discharge pipe for discharging a gas of inside of said cylindrical body to be outside of said heat treating furnace at other end, said rotator is equipped with plural gas supply pipes which are arranged distantly from an outer surface of said cylindrical body and are arranged symmetrically about said rotating axis and has a large number of gas ejection holes, and said rotator is equipped with a connection pipe which is connected to said gas supply pipes for supplying an atmosphere gas to said gas supply pipes from the outside of said heat treating furnace.