Processing method of rectangle fillet bellows expansion joint
A processing method and bellows technology, applied in the processing field of rectangular rounded bellows expansion joints, can solve problems such as difficult to guarantee welding quality, different forming mechanism, increased welding stress, etc., to improve product quality and service life, weld Easy and less welding stress
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[0011] Example 1: 1. After blanking the SPH-C plate, use the forming die to process it into a straight corrugated plate with straight corrugations on the hydraulic press; 2. Use the forming die to shape the straight corrugated plate along the crest direction on the hydraulic press. Bending into an "L" shaped curved corrugated plate, the rounded corner of the bend is a quarter circle, and the length of the outer straight side of the rounded corner is 600mm. When forming, the inner mold (round mold) does not move, and the outer mold (straight strip shape) ) is pushed toward the inner mold and rotated; 3. Weld the straight sides of the four "L"-shaped curved corrugated plates, and align the wave crests and troughs to make a rectangular rounded bellows; 4. Weld according to the conventional method Install flanges, backing plates, brackets and other components, and process them into rectangular rounded bellows expansion joints.
[0012] Example 2: 1. Same as Example 1; 2. Use the f...
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