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設計・制御
soak / hold
Japanese: ソーク
The stage during which the temperature is maintained at a constant level (holding). The meaning differs depending on whether it is used in the annealing, forming, or slow cooling stages. / Note: Represented by a horizontal line on the graph.
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A "soak" is a period during which the temperature is maintained at a constant level. On a temperature-time graph, it appears as a horizontal line.
Tempering, shaping, and slow cooling each serve different purposes and are used almost interchangeably with "holding."
This entry is written in Japanese by Rei Chikaoka and translated for readers outside Japan. If something reads oddly, the original is the source of truth.