Title:
MANUFACTURING METHOD OF PIPE WITH JOINT
Document Type and Number:
Japanese Patent JP2022175808
Kind Code:
A
Abstract:
To provide a manufacturing method of a pipe with a joint capable of reducing the number of processes in comparison with a conventional method, and further reducing an outer diameter of a cylindrical portion of the joint in comparison with the conventional method.SOLUTION: In a state that a front face of a flare portion (13) formed on an end portion of a pipe (3) is kept into contact with a seal face (11) formed inside of a cylindrical portion (6) of a joint (2), the cylindrical portion (6) of a part to which a collar member (4) is inserted, is caulked from a radial outer part of the cylindrical portion (6) while pressing an end face of the collar member (4) to a rear face of the flare portion (13).SELECTED DRAWING: Figure 2
Inventors:
MASUNO TETSURO
Application Number:
JP2021082510A
Publication Date:
November 25, 2022
Filing Date:
May 14, 2021
Export Citation:
Assignee:
NICHIRIN CO LTD
International Classes:
F16L13/14; B21D39/04; F16L19/04
Attorney, Agent or Firm:
Patent Attorney Corporation ATEN