公开(公告)号：US3979041A

公开(公告)日：1976-09-07

申请号：US549003

申请日：1975-02-11

申请人： Kiyoshi Kaneyama ,  Masashi Nakamura ,  Takanobu Murakami

发明人： Kiyoshi Kaneyama ,  Masashi Nakamura ,  Takanobu Murakami

IPC分类号： B23K37/053 ,  B23K31/02

CPC分类号： B23K37/0531

摘要： An apparatus comprising a round-like housing having two assemblies therein. In one assembly there is a group of extending members each having affixed thereto metal backing members, which are alternatively either segment-like or inverted segment-like and have mounted a pair of rollers facing each other across a weld backing strip, the extending members being movable and workable in alternative shifts. In the other assembly the extending members each have affixed thereto a roller, the extending members being movable and workable all in one movement. There are fluid cylinder mechanisms in the assemblies for moving the members in the above-mentioned manner. The aligning, the expanding and the welding of pipes are easily and stably accomplished by such apparatus performed without need of any tack welding.

摘要翻译： 一种包括其中具有两个组件的圆形壳体的装置。 在一个组件中，存在一组延伸构件，每个延伸构件各自具有固定到其上的金属衬垫构件，其可选地是段状或倒置的段状，并且已经安装了一对辊，其跨越焊接背衬条彼此面对，延伸构件 可移动和可行的替代换班。 在另一组件中，延伸构件各自具有固定到其上的辊，该延伸构件可一体移动并且可移动。 在组件中存在以上述方式移动构件的液压缸机构。 通过不需要任何定位焊接的这种装置，可以容易且稳定地实现管道的对准，膨胀和焊接。