公开(公告)号：US5107214A

公开(公告)日：1992-04-21

申请号：US602242

申请日：1990-11-07

申请人： Mitsuo Yoshida ,  Shigeyuki Nitta ,  Kazuyoshi Miyazawa ,  Katsumi Taguchi ,  Masaki Fujiwara

发明人： Mitsuo Yoshida ,  Shigeyuki Nitta ,  Kazuyoshi Miyazawa ,  Katsumi Taguchi ,  Masaki Fujiwara

IPC分类号： G01N29/04 ,  B21B38/00 ,  G01N27/90 ,  G01N29/22

CPC分类号： G01N27/9026 ,  G01N27/9006 ,  G01N27/9033 ,  B21B38/00 ,  G01N2291/0234 ,  G01N2291/044

摘要： A hot flaw detector is equipped with a sensor holding member that has a circular opening through which the material to be inspected will pass and that holds a flaw detecting sensor. Provision is made of an annular cooling liquid injection port that is open at an end of the sensor holding member adjacent to the inner peripheral wall of the circular opening, and provision is further made of an annular cooling liquid introduction port that is open at the other end of the sensor holding member adjacent to the inner peripheral wall of the circular opening. The cooling liquid is injected from the annular cooling liquid injection port, and forms a liquid film along the inner peripheral wall of the circular opening, and is recovered through the annular cooling liquid introduction port. The inner peripheral wall of the sensor holding member is effectively cooled by the liquid film which drips little onto the material to be inspected.

摘要翻译： PCT No.PCT / JP90 / 00296 Sec。 371日期1990年11月7日 102（e）1990年11月7日PCT PCT 1990年3月7日PCT公布。 出版物WO90 / 10864 1990年9月20日。热瑕疵检测器配有传感器保持构件，传感器保持构件具有圆形开口，待检查材料将通过该开口，并保持探伤传感器。 设置有环形冷却液注入口，该环形冷却液注入口在传感器保持构件的与圆形开口的内周壁相邻的端部处开口，并且还设置在另一个开口的环形冷却液引入口 传感器保持构件的端部与圆形开口的内周壁相邻。 冷却液从环状冷却液注入口喷出，沿着圆形开口的内周壁形成液膜，通过环状冷却液导入口回收。 传感器保持构件的内周壁由液膜有效地冷却，液膜几乎滴落到被检查材料上。