レーザー光を用いた福島燃料デブリ取出し技術に関する研究開発,7; レーザー溶断時の温度過渡特性の評価

Study on removal technologies for Fukushima's fuel debris using laser light, 7; Evaluation of transient temperature characteristics of molten metal during laser cutting process

Nguyen, P. L.; 武部 俊彦; 羽成 敏秀 ; 山田 知典; 村松 壽晴

Nguyen, P. L.; Takebe, Toshihiko; Hanari, Toshihide; Yamada, Tomonori; Muramatsu, Toshiharu

Experiment of temperature measurement was performed to investigate the transient temperature characteristics of molten metal during the laser cutting process. The relationship between temperature of the top surface and inside material was determined by using thermography and thermocouple. In addition, the temperature distributions were obtained with different cutting speeds. The appearance of temperature on the top surface is different in case of fail cutting compared with success cutting.