公开(公告)号：EP2570223B1

公开(公告)日：2017-04-12

申请号：EP12151184.4

申请日：2012-01-13

申请人： Linde Aktiengesellschaft

发明人： Graydon, Glen ,  Veldsman, Walter Mark

IPC分类号： F16L13/02 ,  B23K9/028 ,  B23K9/32 ,  B23K35/38 ,  F16L55/10 ,  B23K101/06 ,  B23K101/12

CPC分类号： B23K9/326 ,  B23K9/0282 ,  B23K9/32 ,  B23K35/383 ,  B23K2201/06 ,  B23K2201/12 ,  F16L13/02 ,  Y10T137/0318

摘要： In order to shorten the time period needed for the oxygen concentration to be reduced to about ten ppm, a method for purging air from a structure (10;40) to be welded is proposed, said method comprising feeding a liquid cryogen to said structure (10;40) wherein said liquid cryogen will expand to a gaseous state and displace (25) said air in said structure (10;40).

摘要翻译： 为了缩短所需的氧浓度的时间段减少到大约百万分之十，用于从结构清除空气的方法（10; 40）被焊接提出，所述方法包括将液体致冷剂以所述结构（ 10; 40）worin所述液体冷冻剂将膨胀成气态并置换（25）所述空气在所述结构（10; 40）。

公开(公告)号：EP2570223A1

公开(公告)日：2013-03-20

申请号：EP12151184.4

申请日：2012-01-13

申请人： Linde Aktiengesellschaft

发明人： Graydon, Glen ,  Veldsman, Walter Mark

IPC分类号： B23K9/028 ,  B23K9/32 ,  B23K35/38 ,  F16L55/10

CPC分类号： B23K9/326 ,  B23K9/0282 ,  B23K9/32 ,  B23K35/383 ,  B23K2201/06 ,  B23K2201/12 ,  F16L13/02 ,  Y10T137/0318

摘要： In order to shorten the time period needed for the oxygen concentration to be reduced to about ten ppm, a method for purging air from a structure (10;40) to be welded is proposed, said method comprising feeding a liquid cryogen to said structure (10;40) wherein said liquid cryogen will expand to a gaseous state and displace (25) said air in said structure (10;40).