Dhexeelka Lacagta Dhinacyada Sare ee Sareed | Sare iyo Ka Qeybsan

Dhulka xoolaha iyo dhaqanka qaybta ah ee ku saabsan 10 MPa waxaa lagu yimid inuu ugu muuqdaa siyaasadda ammaanka iyo gaska ah ee ka soo diriray in ay ku jiraan shaqsiyada badbaadaha, sharciiska caabiga ah, iyo adeegga boqorka. Kuwaas oo dhulkaas waa la mid ahaa marka uu u baahnaa alloxoodka steel (misalaa, API 5L X70, ASTM A106 Grade C) ku saabsan hot piercing iyo rolling, ku jira dhammaaninta gurigooda oo aan u baahan weld seams, sidoo kale inuu ugu muuqdaa dhexeeynta iyo dhexdooda badbaadaha. Sharcii kala duwan waa API 5L (steel pipeline), ASTM A333 (cryogenic service), iyo ASME B31.3 (process piping), ku yaal minimum yield strength (485–690 MPa), afkayl (Charpy V notch ≥40 J marka 20°C), iyo ugu muuqata badbaadaha hydrogen induced cracking (HIC) marka gas sour. Testinka mekanikal waa ku jira hydrostatic pressure tests (1.5x working pressure marka 30 daqiiq), hardness testing (HB 180–240), iyo metallographic analysis inuu ugu muuqdaa grain uniformity. Waxaa lacagalka surface coatings for corrosion protection ku jira three layer PE (marka pipelines offshore) ama fusion bonded epoxy. Siyaasadda waa ku jira: high pressure gas transmission (natural gas pipelines), hydraulic systems in heavy machinery, iyo steam generation in power plants. Dhinaca design waa finite element analysis inuu ugu muuqdaa stress concentrations marka bends ama tees, sidoo kale in quality assurance strict ayaa ka mid ah compliance with safety critical industry standards, ka dib marka ay u caddeyn doonaa failures badbaadaha.