| 摘要 |
A firing furnace including heating elements with uniform heating characteristics is provided. The firing furnace (10) includes a housing (12), having a firing chamber (14) for receiving a firing subject (11), and a plurality of heating elements (23) for generating heat when supplied with current to heat the firing subject in the firing chamber. Each heating element is formed of a material containing irregularly oriented crystal grains (32). Each heating element is manufactured by applying pressure entirely to a flexible mold (44), containing a powder composition (43), with a pressurizing medium (41) to form a molded product (firing subject) of the powder composition, firing the molded product at a first temperature, and then firing the molded product again at a second temperature that is higher than the first temperature.
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