发明授权
US08181672B2 Spiral-wound diaphragm bellows, and method of making such a diaphragm bellows 有权
螺旋缠绕隔膜波纹管,以及制造这种隔膜波纹管的方法

Spiral-wound diaphragm bellows, and method of making such a diaphragm bellows
摘要:
A diaphragm bellows includes a spiral-wound, pre-profiled metal strip having neighboring turns which are connected by a continuous welding seam in an area of an outer diameter or inner diameter of the metal strip. Neighboring flanks of the metal strip enter a region of the welding seam at an angle of less than 60°.
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