公开(公告)号：US3877685A

公开(公告)日：1975-04-15

申请号：US37927773

申请日：1973-07-16

申请人： ALGOMA STEEL CORP LTD

发明人： FRANCESCHINA LOUIS E ,  HAROMY FRED ,  KRUPPERT FREDERICK WILLIAM

IPC分类号： C21D1/667 ,  C21D9/08

CPC分类号： C21D9/085 ,  C21D1/667

摘要： An apparatus for hardening an elongated steel pipe by quenching the pipe with a cooling medium, particularly water, which apparatus comprises an elongated container dimensioned to receive a hot pipe to be hardened, means for supporting the hot pipe in a predetermined position in said container, a cooling medium nozzle, having a tip, for introducing cooling medium into the pipe through said tip, means for moving said nozzle between a retracted position in which the tip thereof is spaced from an end of said pipe to allow removal and insertion of said pipe with respect to said container and an expanded position in which said tip lies within said end of said pipe, inlet means for introducing cooling medium into said container so as to pass into said pipe through said tip of said nozzle located in said end of said pipe and also to pass around the outside surface of said pipe and an isolator means in fluid communication with said nozzle, movable to vary the relative proportion of volumes of cooling liquid entering through said inlet means which passes into said pipe through said nozzle and around said pipe whereby to control the relative rates of cooling of the inside surface of the outside surface of the pipe. The present invention also provides a method of hardening an elongated steel pipe using said apparatus.

摘要翻译： 一种通过用冷却介质特别是水淬火该管道来硬化细长钢管的装置，该设备包括一个细长容器，该容器的尺寸适于容纳待硬化的热管，用于将热管支撑在所述容器中的预定位置， 具有尖端的冷却介质喷嘴，用于通过所述尖端将冷却介质引入所述管道，用于使所述喷嘴在其顶端与所述管的端部间隔开的缩回位置之间移动的装置，以允许所述管道的移除和插入 相对于所述容器和扩展位置，其中所述尖端位于所述管的所述端部内，入口装置用于将冷却介质引入所述容器中，以便通过位于所述管道的所述端部中的所述喷嘴的所述尖端进入所述管道 并且还绕过所述管的外表面和与所述喷嘴流体连通的隔离装置，可移动以改变所述管的体积的相对比例 冷却液通过所述入口装置进入，所述入口装置通过所述喷嘴并围绕所述管道进入所述管道，从而控制管道的外表面的内表面的相对冷却速率。 本发明还提供了使用所述装置使细长钢管硬化的方法。