| 摘要 |
<p>Provided is a heat treatment method of a solid phase raw material which heats and melts a solid phase raw material placed in a container by a heating means, then solidifies the solid phase raw material in order to obtain an ingot thereof, wherein the temperature of the solid phase raw material is detected by a temperature detecting means, and, when the temperature which remains constant just before melting of the solid phase raw material is completed is defined as a reference temperature Tm°C, temperature control is carried out on the basis of the reference temperature Tm°C.</p> |
