| 摘要 |
PROBLEM TO BE SOLVED: To obtain an electrode support tube with good circularity and straightness and its uniform void rate. SOLUTION: In this method, a cylindrical non-sintered moldy 10 is loaded at a recess portion between heat resistance rollers 14, 14 arrayed horizontally and rotating slowly, and whereby the molds 10 is sintered while it is rotating slowly in a reverse direction, together with rotation of the rollers 14 and serves as an electrode support tube. Therefore, since a load distribution becomes even as a whole, an electrode support tube with circularity and straightness being maintained and even void rate can be manufactured. |
