发明了一种薄壁金属管材通用环向拉伸的试验装置,该装置包括与拉力试验机连接的两个对称设置的夹具,以及与两个夹具连接的挂块。本发明结构简单,组装方便快捷,通用性强。在测试不同规格的管材时,只需加工对应其内径的挂块,而不必更换夹体;在测试大批量同种规格的管材时,只需要组装挂块和试样,而不必拆卸夹体。本发明可以有效提高管材环向拉伸试验效率并降低试验成本。
Invented a universal hoop tensile test device for thin-walled metal pipes. The device includes two symmetrically arranged clamps connected with a tensile testing machine and a hanging block connected with the two clamps. The invention has simple structure, convenient and quick assembly, and strong versatility. When testing pipes of different specifications, only the hanging block corresponding to its inner diameter needs to be processed without changing the clamp body; when testing large quantities of pipes of the same specification, only the hanging block and the sample need to be assembled without disassembling the clamp body. The invention can effectively improve the pipe hoop tensile test efficiency and reduce the test cost.