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Method and apparatus for making a corrugated tube by helically winding a thin corrugated strip, preferably a steel strip
Method and apparatus for making a corrugated tube by helically winding a thin corrugated strip, preferably a steel strip
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机译:通过螺旋缠绕薄的波纹带,优选地是钢带来制造波纹管的方法和设备
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摘要
In this method, at least one corrugation of the allocated strip is inserted into a corrugation of the wound strip produced beforehand, and at least one corrugation of the corrugations of the wound strip lying one inside the other is joined by pressing together. To obtain a simple and gas-tight, flexible corrugated tube which is inexpensive to produce, first of all the corrugation, to be pressed flat, of the incoming strip is preformed roughly in a trough shape in cross-section with a flat corrugation apex and roughly straight corrugation flanks slightly inclined to the outside, the corrugation, to be pressed flat, of the interlocked wound strip is then deformed in an omega shape in cross-section, and the corrugation apex and the corrugation flanks are in each case pressed together flat, the adjacent margins of the corrugation flanks pressed flat being at a distance from one another, and finally the corrugation flanks pressed flat are alternately pressed together with the corrugation apex in a point-like manner at a distance apart. IMAGE
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