Seamless steel tube residual stress uncertainty detection method

[0023] The technical solution of the present invention will be described in detail below with reference to example embodiments. However, the example embodiments can be implemented in various forms, and should not be construed as being limited to the embodiments set forth herein; on the contrary, the provision of these embodiments makes the present invention more comprehensive and complete, and fully conveys the concept of the example embodiments To those skilled in the art.

[0024] Such as figure 1 The diagram shown is a schematic diagram of determining the patch point in the present invention; figure 2 Shown is a schematic diagram of longitudinal planing along the axial direction in the present invention; image 3 As shown, it is a schematic diagram of attaching a strain gauge to a patch point in the present invention.

[0025] Take a 500mm long pipe sample (4#, 5#, 6# three steel pipes), symmetrically spaced 150mm from the center, determine 1, 2, 3, and test the outer diameters D1