STIRRER SHAFT PIPE AND METHOD FOR PRODUCING SAME

摘要

The present invention is a stirrer shaft pipe constituting a shaft of a stirrer for glass production formed by the shaft and a stirring blade protrusively provided at the shaft, having a multilayered structure of n layers (n = 2 to 5) in which a plurality of pipes are laminated, wherein in at least the pipe of one layer of the plurality of pipes constituting the multilayered structure, a crystal grain aspect ratio (a longitudinal direction/a radial direction) in a material structure of a section in the longitudinal direction is 10 to 100, and a crystal grain aspect ratio (a circumferential direction/ a sectional direction) in the material structure of a section in the circumferential direction is 5 to 100.