Experimental device for researching influence of pipe-making deformation on HIC resistance of pipeline steel

The utility model relates to an experimental device for studying the influence of pipe-making deformation on the HIC resistance of pipeline steel, which comprises a pressure head, a plurality of bent cores and two supporting seats, the two supporting seats are oppositely arranged and used for supporting a sample steel plate to enable the sample steel plate to be suspended, the distance between the two supporting seats is adjustable, the pressure head is positioned above the supporting seats, the plurality of bent cores are mounted on the pressure head, and the two supporting seats are fixed on the pressure head. The ends of the bent cores face downwards and are located on the same arc, and the pressing head downwards acts on the sample steel plate through the ends of the bent cores so that the sample steel plate can be bent downwards. And the plurality of bent cores are movably arranged on the pressure head, so that the curvature of the arc is adjustable. The multi-bending-core pressure head with the adjustab