Method to manufacture sealing nipples or plugs

Details Method to manufacture sealing nipples or plugs Method to manufacture sealing nipples or plugs

B - Operations, Transporting

23

P

26/145, 26/161

B23P 15/00 (2006.01) B21D 51/44 (2006.01) B23P 15/26 (2006.01) F24H 9/12 (2006.01) F28F 9/26 (2006.01)

Patent

CA 2036601

METHOD TO MANUFACTURE SEALING NIPPLES OR PLUGS ABSTRACT OF THE INVENTION The method to manufacture sealing nipples or plugs comprises a cutting process of a disk-shaped element from a metal sheet followed by drawing of the disk to obtain a hollow element of cylindrical shape, closed at one end by a cap, and then pressing the hollow element to form an annular crown on the outer peripheral surface of it. Lastly the threading of at least a portion of the outer peripheral surface starting from the open end, is carried out.

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