Screw Threaded Joints TRIZ Cases
- Steel Pipe Joint Thread Structure for Higher Fastening Torque
A localized incomplete thread raises the critical section area, improving fastening torque, sealability, and pressure resistance without larger pipe dimensions.
- Dual-Tapered Threaded Connection for Wear-Resistant Tubing Strings
Dual helical tapered threads reduce hoop stress and coupling wear in extended-reach tubing strings, avoiding costly hard banding.
- Stepped Threaded Joint Structure for High-Tensile Pipe Connections
A two-sequence stepped thread structure balances cross-sectional area, load distribution, and radial sealing to prevent end-position fractures.