| 摘要 |
<p>A long ceramic body with less fluctuation of shape accuracy, and with higher shape accuracy, is produced by controlling the deformation of the long ceramic body. The long ceramic body is formed by firing a long non-sintered ceramic body (5), when the long body (5) is suspended in a sheath so as not to contact directly the interior surface of the sheath, at a temperature at which sintering can take place, until sintering is completed. Then the long body is turned upside down and re-fired at a temperature at which sintering can take place. A predetermined downward load (10) is applied to the long body at the vicinity of the bottom thereof during second firing.</p> |
