In the invention, the pole shoe walls and the heat conduction layer are placed in a vacuum furnace and then welded into one by diffusion welding by adopting a diffusion welding tool.
本发明采用扩散焊工装，将极靴壁和导热层放置于真空炉中通过扩散焊焊接为一体。
Jinan North Welding Tool Co., Ltd.
济南诺斯焊接辅具有限公司。
Jinan North Welding Tool Co., Ltd.
济南诺斯焊接辅具有限公司。
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