| 摘要 |
PROBLEM TO BE SOLVED: To improve efficiency from the start of heat treatment to the heating of a treatment object up to a temperature required for a reaction.SOLUTION: A heat treatment device that applies heat treatment to a treatment object using sunlight, comprises a light collection part that collects sunlight, and a storage part that stores a plurality of treatment objects being laminated. The light collection part collects sunlight to an area around a treatment object at one end, out of the laminated plurality of treatment objects, and at least some of the laminated plurality of treatment objects, including the treatment object at one end, are subject to heat treatment using the collected sunlight. |
