| 摘要 |
Provided are a high performance titanium connecting sealing ring for deep-sea oil drilling and production device and processing method therefor. The sealing ring comprises a ring-shaped ring body (1), the center hole of the ring body (1) being an inner circumferential surface (5); a ring-shaped convex plate (2), a platform (3), an inclined end face (4) and a flat end face (6) arranged in sequence in the circumferential direction of the cylindrical surface of the ring body (1); and processed threads(7) in the inner circumferential surface (5). The processing method for the titanium connecting sealing ring mainly comprises the steps of preparation of titanium sponge, vacuum melting titanium ingot, forging prescribing, heating forging, heat treatment and machining; the measured tensile strength of the titanium connecting sealing ring is 565 MPa, the yield strength is 460 MPa, the elongation is 25.2%, the section shrinkage is 44%; the obviously enhanced technical performance allows reliable use in deep sea at a depth of 1000-3000 m or more, can bear huge deep-sea pressure and oil and gas transmission pressure, can increase the service life of the drilling and production device and the extraction efficiency, and can prevent marine environmental pollution due to oil leak caused by corrosion or damage. |
