English — Forum #276 (Page 28/145)

1. Internal structure of the heating furnace - HCBBS Forum
2. Hydraulic test, pneumatic test, leak test - HCBBS Forum
3. On the assessment of stress - HCBBS Forum
4. Principles for selecting non-destructive testing methods - HCBBS Forum
5. Introduction to the main accessories of control valves - HCBBS Forum
6. Is it now required to use a tubular reactor for the nitration reaction? - HCBBS Forum
7. Calculation of load on petrochemical pipeline nozzles - HCBBS Forum
8. Methods to improve pump cavitation - HCBBS Forum
9. Calculation for reinforcement of takeover openings - HCBBS Forum
10. Variable-frequency generator - HCBBS Forum
11. The cylinder of high-pressure equipment is made of 36mm Q345R steel plate – is normalizing required? - HCBBS Forum
12. When was the term MAEWP removed from the ASME standards? - HCBBS Forum
13. In chemical plants, from equipment to production, from processes to maintenance, hazard identification - HCBBS Forum
14. For UT testing of steel plates, what should be the acceptable grade? - HCBBS Forum
15. Maintenance and renovation of pressure vessels - HCBBS Forum
16. Is a pressure gauge a safety accessory for special equipment or a measuring instrument? - HCBBS Forum
17. Do 16MnDR pressure vessels operating at temperatures below -20 degrees Celsius require overall heat treatment? - HCBBS Forum
18. The eight main factors affecting the fatigue strength of metal materials - HCBBS Forum
19. Detailed explanation of the equipment installation and commissioning phase - HCBBS Forum
20. Q&A on Tubular Heating Furnace Technology [24] - HCBBS Forum
21. Ball tank hydrostatic test - HCBBS Forum
22. Difference between O-type ball valves and V-type ball valves - HCBBS Forum
23. Which storage tanks require interlocks? Should these interlocks be connected to an independent Safety Instrumented System (SIS)? - HCBBS Forum
24. Basic principles for selecting welding materials - HCBBS Forum
25. What software is used for the strength calculation of pressure pipelines? - HCBBS Forum
26. Why does modified crude oil require shear failure and timeliness analysis? - HCBBS Forum
27. Plan for Improving the Equipment Inspection Management and Maintenance System - HCBBS Forum
28. Welding technology for stainless steel pressure vessels - HCBBS Forum
29. Basic knowledge of forging-related processes - HCBBS Forum
30. Common Issues in Pressure Vessel Design – Structural Aspect 1 - HCBBS Forum
31. How to determine the variable diameter external pressure cylinder coefficient A and outer diameter Do? - HCBBS Forum
32. 【Ten Years of Rapid Development in Chemical Equipment】1685–2011: The First Domestic Multi-stage Hydraulic Turbine Put into Use at Jinling Petrochemical - HCBBS Forum
33. The difference between ductile iron and gray iron - HCBBS Forum
34. The issue of the relief valve’s discharge area - HCBBS Forum
35. Characteristics of the welding heat process - HCBBS Forum
36. Where are there clear regulations regarding heat treatment after welding a transition layer on equipment flanges? - HCBBS Forum
37. Basic knowledge of equipment lubrication - HCBBS Forum
38. Thermoelectric cogeneration boilers are now being converted into steam industrial boilers; what procedures need to be followed before construction? - HCBBS Forum
39. Does anyone have a PDF on mechanical engineering materials? Any version will do - HCBBS Forum
40. Why are the roughness values 0.8, 1.6, 3.2, 6.3, and 12.5? - HCBBS Forum
41. The latest version of GB/T 713.1~7-2023: Steel plates and strips for pressure equipment - HCBBS Forum
42. Common media for heat treatment and troubleshooting of related issues - HCBBS Forum
43. Is the set pressure of the safety valve correct? - HCBBS Forum
44. Can PTFE gaskets be used for the access manholes on coke oven gas storage tanks? - HCBBS Forum
45. Equipment technical condition management - HCBBS Forum
46. 3600 vertical Vertebral body storage tank; the client requires leg-type supports to be used - HCBBS Forum
47. Main Hazard Factors and Control Measures for Fine Chemical Reactors - HCBBS Forum
48. Should the vent hole of the fusible plug on the propylene sphere tank be opened after it is put into use? - HCBBS Forum
49. Common issues in the design criteria for chemical static equipment - HCBBS Forum
50. Strength matching of welded joints - HCBBS Forum
51. Essential evaluation indicators for equipment management - HCBBS Forum
52. Why leave three threads after tightening the bolt? - HCBBS Forum
53. Concepts and approaches to modern equipment management - HCBBS Forum
54. What do a and b in the heat exchanger stage partition refer to respectively? - HCBBS Forum
55. Determination of the minimum thickness of pressure vessel heads and influencing factors - HCBBS Forum
56. What are the hazards of operating a pump in a low-flow range for extended periods? - HCBBS Forum
57. For welding multiple pipes and headers as shown in the figure, should it be done by skip welding, or by starting welding from one end? - HCBBS Forum
58. Valve structure terminology - HCBBS Forum
59. Seismic structure on the support - HCBBS Forum
60. How to select a steam distribution cylinder? - HCBBS Forum
61. Manufacturing process and welding process for composite steel plate pressure vessels - HCBBS Forum
62. Search for manufacturers of negative pressure reaction kettles - HCBBS Forum
63. Calibration of the storage capacity of crude oil tanks - HCBBS Forum
64. Seeking to modify low-nitrogen burners - HCBBS Forum
65. Natural gas boilers for sale - HCBBS Forum
66. Why are large-diameter valves difficult to open and close? - HCBBS Forum
67. The ten key management priorities for a company’s equipment management - HCBBS Forum
68. Biconical gasket design - HCBBS Forum
69. Equipment leakage risk management - HCBBS Forum
70. Some specifications regarding the installation of emergency shut-off valves in tank areas - HCBBS Forum
71. Intergranular corrosion of stainless steel materials - HCBBS Forum
72. What exactly does a pressure pipeline reducer include? - HCBBS Forum
73. Introduction to the usage specifications for bolts, nuts, and washers - HCBBS Forum
74. Heat resistance temperature of stainless steel - HCBBS Forum
75. The top priority in equipment management - HCBBS Forum
76. How should the heat exchange tubes of a heat exchanger be repaired? - HCBBS Forum
77. For the segmented transportation of tower A1, what qualifications are required for on-site assembly? - HCBBS Forum
78. Is the thickness of the surfacing layer included in the thickness of the tube sheet? - HCBBS Forum
79. Metal matrix composites - HCBBS Forum
80. Is external pressure calculation done without considering the core? In the external pressure formula, the value of σ0 is limited to 0.9Rel; does this indicate that instability occurs at the yield point? - HCBBS Forum
81. For atmospheric-pressure equipment, which is better: adding transverse reinforcement inside the equipment or outside it? - HCBBS Forum
82. Structural diagram of blast-proof valve - HCBBS Forum
83. How to calculate the moment of inertia of a semi-circular coil - HCBBS Forum
84. Q&A on Tubular Heating Furnace Technology [17] - HCBBS Forum
85. Fuel gas pipeline cleaning - HCBBS Forum
86. Phase transition critical points of common steels - HCBBS Forum
87. Fault manifestations and causes of mechanical seals - HCBBS Forum
88. The importance of pre-welding heating and post-welding heat treatment - HCBBS Forum
89. Solex cooler - HCBBS Forum
90. Can Japanese standards be used for pressure vessel pipe flanges? - HCBBS Forum
91. [Haichuan Equipment Guess] Where did the bundle of wood come from? - HCBBS Forum
92. How to determine the operating speed of the mixer - HCBBS Forum
93. Case Study Sharing || Application of SF700 Sealing Materials in the Chemical Industry - HCBBS Forum
94. Welding of Hastelloy C276 and stainless steel S30408 - HCBBS Forum
95. Who has the technical requirements for furnace tube welding? - HCBBS Forum
96. I’ve just joined the device group; if anyone has one, please add me - HCBBS Forum
97. The tube sheet of the fixed-tube-sheet heat exchanger is a nickel-carbon steel composite tube sheet, while the shell is made of carbon steel. Does welding the shell to the tube sheet have an impact on the composite layer? - HCBBS Forum
98. Does anyone know what the standard for anti-vibration gaskets for fasteners in ASME is? - HCBBS Forum
99. Ensure proper equipment operation and maintenance management - HCBBS Forum
100. The latest and most comprehensive set of formulas for welders’ skills! - HCBBS Forum