Druckaufnehmer und Verfahren zu seiner Herstellung

摘要

An adapter ( 2 ) disposed between joint ( 1 ) and diaphragm ( 3 ) includes an axis portion ( 21 ) and a flange ( 22 ) projecting radially from the axis portion ( 21 ). The axis portion ( 21 ) is arranged so that one end thereof does not interfere with the joint ( 1 ) and the other end is welded to the diaphragm ( 3 ), and the joint ( 1 ) is caulked to a peripheral edge of the flange ( 22 ). Since the diaphragm ( 3 ) is not directly joined to the joint ( 1 ), welding is not performed near the joint ( 1 ), but can be performed in a wide space where equipment is suitably arranged. In addition, caulking operation of the joint ( 1 ) to the adapter ( 2 ) can be performed by pressing a caulking portion ( 12 C) formed in advance in the joint ( 1 ) against the outer peripheral edge of the flange ( 22 ), so that a wide space is unnecessary for caulking.