HEAT TREATMENT APPARATUS FOR OXIDE SUPERCONDUCTING WIRE MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a heat treatment apparatus for an oxide superconducting wire material, wherein improvement of the exhaust efficiency and reduction in the flow rate of carrier gas can be achieved. SOLUTION: A heat treatment apparatus 1 includes: a reactor core pipe having tubular heat treatment spaces 4 formed of outer casings 2 and inner casings 3; heaters 5 arranged at the outer circumference of the reactor core pipe; tubular rotors 6 in which many through-holes 6a for winding a tape-shaped wire material having a YBCO superconducting precursor film arranged to be rotatable relative to a reactor core axis are formed in the heat treatment spaces 4; gas feed pipes 7 having many gas ejecting holes 7a arranged between the outer casings 2 and the rotors 6; and gas discharge paths 8 for discharging ambient gas from spaces between the rotors 6 and the inner casings 3. The gas discharge paths 8 are formed of gas discharge pipes 14 having tubular gas discharge paths 13 comprising outer cylindrical bodies 11 arranged between the inner casings 3 and the rotors 6 and inner cylindrical bodies 12 arranged concentrically therein, thereby enabling uniform reaction over the entire length of the tape-shaped wire material wound around the tubular rotors 6. COPYRIGHT: (C)2009,JPO&INPIT