In the paper,the nondestructive examination has been successfully carried out,the complex self-tighten sealing structure has satisfied demands of ultrahigh pressure (560 MPa) down-lead seal,the experimental results in...In the paper,the nondestructive examination has been successfully carried out,the complex self-tighten sealing structure has satisfied demands of ultrahigh pressure (560 MPa) down-lead seal,the experimental results indicate that calculation formula of residual stresses has higher precision and reliability.展开更多
文摘In the paper,the nondestructive examination has been successfully carried out,the complex self-tighten sealing structure has satisfied demands of ultrahigh pressure (560 MPa) down-lead seal,the experimental results indicate that calculation formula of residual stresses has higher precision and reliability.