公开(公告)号：US20120117803A1

公开(公告)日：2012-05-17

申请号：US13379710

申请日：2011-01-28

申请人： Koshiro Niihara ,  Hiriki Takagi

发明人： Koshiro Niihara ,  Hiriki Takagi

IPC分类号： B21D53/78

CPC分类号： F04D29/281 ,  B23K1/0018 ,  F04D29/023 ,  F04D29/284 ,  F05D2230/237 ,  Y10T29/49316 ,  Y10T29/49321 ,  Y10T29/4998 ,  Y10T29/49998

摘要： There is provided a method for manufacturing an impeller, in which a brazing layer having a necessary thickness can be secured easily while the waste of a brazing filler metal is eliminated. The present invention includes a step X of producing a disc 11 and a cover 12 separately. Blades 13 are formed integrally with either one of the disc 11 and the cover 12. As the subsequent step, the present invention includes a step Y of joining the disc 11 and the cover 12 to each other by brazing in the state in which a brazing filler metal is interposed between a first joint surface provided on the blade 13 and a second joint surface provided on either one of the disc 11 and the cover 12. In the present invention, in the step Y, brazing operation for joining is performed by providing spacers 13c, which are used to maintain a space between the first joint surface and the second joint surface, between the first joint surface and the second joint surface.

摘要翻译： 提供了一种用于制造叶轮的方法，其中可以容易地固定具有必要厚度的钎焊层，同时消除了钎料的浪费。 本发明包括分别制造盘11和盖12的步骤X. 叶片13与盘11和盖12中的任一个一体地形成。作为随后的步骤，本发明包括通过钎焊将盘11和盖12彼此接合的步骤Y，其中钎焊 填充金属插入在设置在刀片13上的第一接合面和设置在盘11和盖12中的任一个上的第二接合面上。在本发明中，在步骤Y中，通过提供用于接合的钎焊操作， 用于在第一接合表面和第二接合表面之间保持第一接合表面和第二接合表面之间的空间的间隔件13c。