To solve the technical problem of integral forging processing for the upper cover of the tension ring of marine drilling riser,welded parts are used instead of integral forgings for the upper cover of the tension ring.The upper cover adopts a thick steel plate welding structure,with T-joints,K-grooves,and CJP welds.By analyzing the specific structure of the upper cover,the welding sequence of the upper cover was reasonably designed.The welding process qualification test was completed using a test plate with a limit plate joint,and the test results met the design requirements.The developed upper cover of the tensioning ring for marine riser can provide a reference for the"welding instead of forging"process of complex structural parts in related marine underwater equipment.
marine drilling riserupper cover of tension ringwelding procedure qualificationwelding test plate
国家科技期刊平台
NSTL
维普
万方数据
