| 摘要 |
PROBLEM TO BE SOLVED: To provide a brazing method that prevents a weld zone from lacking in filler metal. SOLUTION: A rotary shaft 148 rotates in the direction of the arrow B by the rotation of a driving belt 156, which makes a tool 120 and a turbine runner 70 turn in the direction of the arrow B together with a turntable 142. By a centrifugal force produced by this rotation, a filler metal 100 (filler metal 100 shown by a dotted line in Fig. 2) deviated from a prescribed position (a position in contact with the inner circumferential face of a shell 72 and the position of the filler metal 100 shown by a solid line in Fig. 2) moves to the prescribed position. Accordingly, even if the position of the filler metal 100 is deviated during the transit, the turbine runner 70 is rotated before the heating in a heating chamber 40 and is further kept rotated during the heating, which makes the filler metal 100 continuously stay in the prescribed position, thus, the weld zone is prevented from lacking in the filler metal. COPYRIGHT: (C)2008,JPO&INPIT
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