I would like to ask about the differences between reinforcement rings, rigid rings, and stiffening rings

The reinforcement ring is a compressive element used for reinforcing openings； The rigid ring is used as a support ； Reinforcement is used to increase stiffness.

Thank you, boss. Can we replace each other?

They serve different purposes and cannot be substituted for each other.

Their uses are different; the reinforcement ring is used at pipe openings to compensate for the weakening that occurs after making openings. Rigid rings are generally used for lugs to enhance the rigidity of the lugs in addition to that of the cylinder body. Reinforcement plates are used to increase local stiffness; they are applied at many pipe openings, as well as to enhance the stiffness of small pipes and prevent them from bending. I’m not sure what you mean by mutual substitution How can things that aren’t from the same place replace each other? I’m not sure if it’s because you understand that they’re all used to strengthen the takeover, that’s why you want to replace them? However, the reinforcement ring is used to counteract the weakening of the cylinder wall that occurs when openings are made due to internal pressure, while the stiffening plates are used to address the lack of rigidity resulting from external loads on the pipe ends. These two approaches cannot be used interchangeably if internal pressure is the factor at play; but in cases where external loads are the cause, both can serve a reinforcing purpose, though the calculation methods differ significantly. Stress analysis should allow for resolving this issue. As for rigid rings, I’m not quite sure what you mean.