公开(公告)号：US06799608B1

公开(公告)日：2004-10-05

申请号：US09597700

申请日：2000-06-19

申请人： Hiroshi Koshika ,  Shinichi Nishimura

发明人： Hiroshi Koshika ,  Shinichi Nishimura

IPC分类号： F15D102

CPC分类号： F16L43/001

摘要： There is an object to provide a technique of forming a proper abrasion resistance layer by a thermal spraying and fusing of a self fluxing alloy. The object may be solved by cutting the pipe body along a curved face that is perpendicular to a plane including a central axis of the pipe body and that extends not to cross the inlet hole and the outlet hole but to include a part of the central axis. Thus the pipe body is divided into a first partitioned part having at least one of the inlet hole and the outlet hole, and a second partitioned part. An abrasion resistance layer is then formed on the inner surface of at least the outer bent portion of the pipe body by a thermal spraying and fusing of a self fluxing alloy. Thereafter, the first partitioned part is fitted into the second partitioned part for welding to obtain a bent pipe according to the present invention.

摘要翻译： 本发明的目的是提供通过自熔合金的热喷涂和熔融来形成适当的耐磨层的技术。可以通过沿着垂直于包括中心的平面的曲面切割管体来解决该目的 并且不延伸穿过入口孔和出口孔，而是包括中心轴线的一部分。 因此，管体被分成具有入口孔和出口孔中的至少一个的第一分隔部分和第二分隔部分。 然后通过自熔合金的热喷涂和熔融，在管体的至少外弯曲部分的内表面上形成耐磨层。 此后，将第一分隔部分装配到第二分隔部分进行焊接以获得根据本发明的弯管。