Thread Content
1. What are the different types of welded joint structures, and what are their characteristics? 2. How to select welding materials for pressure vessels? 3. What are the precautions for composite panels? 4. Concepts of hydrogen embrittlement and hydrogen corrosion, causes, and countermeasures? 5. Selection of high-pressure studs, their characteristics, and force analysis? 6. What is the welding structure type for the head and cylinder, and what are the inspection methods? 7. What is the stress condition of the upper and lower tie rods of the spherical tank? 8. Ball tank heat treatment methods, purposes, and what types are used for this ball tank? 9. What is the purpose of setting manholes on spherical tanks? 10. What are the precautions during the manufacture of spherical tanks? 11. Non-destructive testing during the manufacture of spherical tanks? 12. How should materials be selected for H2S? 13. The heat treatment is complete, but I forgot to weld the nameplate holder. What should I do? 14. What are the advantages and disadvantages of cold forming and hot forming? 15. Can the gusset plate of the lifting lug be used as a reinforcement plate? 16. What failure modes should be considered for the bolts of flanges? 17. What does the maximum and minimum preload of bolts depend on? 18. Is there a difference in circumferential stress between high-pressure and medium/low-pressure equipment? 19. What loads need to be considered for supported bearings? 20. What does the pressure rating of a flange depend on? 21. What is recovery performance heat treatment? How to carry out recovery performance heat treatment? 22. What is combined testing? Is TOPD+UT a combined detection method? 23. Which is greater, the wind load or the seismic load on spherical tanks? 24. How is the number of ball tank legs determined? 25. How is the minimum wall thickness of the nozzles on high-pressure vessels determined? 26. What points should be considered in the reinforcement calculation for openings in embedded joints? 27. Can a spherical tank be manufactured using TOPD without performing UT? 28. Can the thickness of the shell plates of a spherical tank vary?