| 摘要 |
PURPOSE:To uniformly heat a material to be heated to a high temperature in a short time by filling gas in a heating chamber in which the material to be heated is disposed, suitably preheating the material to be heated, and then heating the material to be heated by heat generated by compressing the gas. CONSTITUTION:After gas 30 is filled in a heating chamber 10 in which a material 20 to be heated is disposed, the material 20 to be heated is heated by heat generated by compressing the gas 30. In this case, a piston 12 is quickly moved leftward in Figure to adiabatically compress the gas 30 filled in the chamber 10. Thus, the material 20 to be heated is uniformly heated to a high temperature in a short time. On the other hand, a heater 14 is disposed outside the chamber 10, and the material 20 to be heated may be preheated under the conditions in which thermal reaction does not occur at the material 20 to be heated. Thus, the heating is efficiently performed in a short time without using large power to compress the gas 30, i.e., without using large volumetric compression ratio.
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