English — Forum #276 (Page 9/145)

1. Requirements for the layout and selection of flame arresters in pipeline accessories of the petrochemical industry - HCBBS Forum
2. Summary of inspection and testing knowledge points - HCBBS Forum
3. Replacement of the quench ring in a four-nozzle gasification furnace - HCBBS Forum
4. Selection of submerged arc welding fluxes - HCBBS Forum
5. What does the arrow on the valve mean? - HCBBS Forum
6. What is the storage period for blast discs? - HCBBS Forum
7. Thermal deaerator - HCBBS Forum
8. Product quality and reliability - HCBBS Forum
9. Strength matching of welded joints - HCBBS Forum
10. Key points of welding process for 12Cr1MoVG alloy pipes - HCBBS Forum
11. How to change the calculated diameter range for the opening reinforcement in PVelite? - HCBBS Forum
12. Container wall thickness issue - HCBBS Forum
13. Key points of maintenance technology for belt drives - HCBBS Forum
14. Have you all seen flash vaporization spheres? - HCBBS Forum
15. Does a tube box made of composite material Q345R+S30403, with partitions, require heat treatment? - HCBBS Forum
16. Classification, installation principles, and selection requirements for safety devices in pressure vessels - HCBBS Forum
17. Differences between hydraulic testing, pneumatic testing, airtightness testing, pressure resistance testing, and leakage testing - HCBBS Forum
18. Who usually fills out the welding record? - HCBBS Forum
19. The relationship between the color of titanium welds and welding quality - HCBBS Forum
20. The issue of the pipe diameter downstream of the safety valve - HCBBS Forum
21. What is the difference between a pipe characteristic table and a pipe data table? - HCBBS Forum
22. Jiangsu Province has issued regulations on the management of assessment and evaluation for administrative permits related to special equipment, requiring local authorities to send personnel to supervise these assessments and evaluations on-site - HCBBS Forum
23. Knowledge of welding heat-affected zone - HCBBS Forum
24. Boiler drum - HCBBS Forum
25. Pre-notification on the release of SW6-2024 V1.0 and the upgrade for existing SW6 users - HCBBS Forum
26. Beware! Pressure equipment welded using flux-cored wires are all defective - HCBBS Forum
27. Is it necessary to use a double-tank design based on the external safety clearance distance? - HCBBS Forum
28. Several methods of strengthening metallic materials - HCBBS Forum
29. GB/T4732.4-2024 classification system - HCBBS Forum
30. Selection of flanges for U-type heat exchanger tubes/shell side equipment - HCBBS Forum
31. Why cannot the exhaust temperature of the low-pressure cylinder of a steam turbine exceed 121°C? - HCBBS Forum
32. Operations such as starting, switching, and stopping centrifugal pumps - HCBBS Forum
33. Regarding the methods of preparing grooves in steel plates - HCBBS Forum
34. Chloride corrosion of stainless steel - HCBBS Forum
35. 【Ten Years of Rapid Development in Chemical Equipment】2066–2024: Mobile factory used to construct the super-large-scale towers for the second phase of the 1.2 million tons/year ethylene project in Tarim - HCBBS Forum
36. Difference and conversion between gauge pressure and absolute pressure - HCBBS Forum
37. High-efficiency dust and mist removers and related technical issues - HCBBS Forum
38. How much is 1 silk? - HCBBS Forum
39. They really go all out to save costs! - HCBBS Forum
40. Equipment integrity management - HCBBS Forum
41. Is the sensitization of austenitic stainless steel based on the same principle as the precipitation of sigma phase? - HCBBS Forum
42. Contents of the equipment maintenance plan - HCBBS Forum
43. Compressor knowledge - HCBBS Forum
44. Analysis of the causes of leakage in mechanical seals for pumps - HCBBS Forum
45. How can intergranular corrosion be prevented in the strong welding between the heat exchange tubes and the tube sheet of a heat exchanger? - HCBBS Forum
46. Summary Report on Equipment Management Work - HCBBS Forum
47. What is a multi-media filter? - HCBBS Forum
48. Causes of boiler tube bursts and preventive measures - HCBBS Forum
49. The welding rod must be chosen correctly - HCBBS Forum
50. The workshop must keep the “1-5-7-3” model in mind to help you become a master of on-site management - HCBBS Forum
51. Knowledge of stress corrosion - HCBBS Forum
52. What are the methods for refining grains? - HCBBS Forum
53. rolling - HCBBS Forum
54. Selection of low-pressure high-temperature pipe flange types? - HCBBS Forum
55. Safety Valve Technical Specifications - HCBBS Forum
56. Guizhou Kailin Group-----Photos from the site where the fully automatic intelligent fluid loading/unloading arm system is in use - HCBBS Forum
57. Types and working principles of pipeline filters - HCBBS Forum
58. Do the stress increase coefficient and the stress concentration coefficient mean the same thing? - HCBBS Forum
59. Summary of key points for equipment inspection - HCBBS Forum
60. Summary of equipment maintenance tasks - HCBBS Forum
61. Can NiII be used in the NiIII welder program? - HCBBS Forum
62. What kind of gasket is RSB? - HCBBS Forum
63. Pressure deaerator - HCBBS Forum
64. In GB150, why is it specified that a folded edge structure with a transition section should be used when the half apex angle is 30°? - HCBBS Forum
65. Structural analysis of internal floating roof storage tanks and safety measures to prevent trays from falling to the bottom - HCBBS Forum
66. Pressure Vessel Design Review Question Bank (Short Answer Questions 1/3) - HCBBS Forum
67. 【Question】Calculation of steam consumption - HCBBS Forum
68. Management Standards for the Completion Acceptance of Engineering Projects - HCBBS Forum
69. Is it necessary to lock or seal the interlock emergency stop button cover? - HCBBS Forum
70. Calculation of the residence time in the reactor - HCBBS Forum
71. What is the enthalpy of water and water vapor? - HCBBS Forum
72. The technology for the development and mass production of low-pressure solid hydrogen storage alloys developed by the Ganjiang Innovation Institute and the Chinese Academy of Sciences has passed the evaluation of scientific and technological achievements - HCBBS Forum
73. What do polarization and depolarization mean in electrochemical corrosion? Could an expert explain it in simple terms? - HCBBS Forum
74. Problems in the segmented design of heat exchanger cylinders - HCBBS Forum
75. The main reasons for tube failures in 14 boilers - HCBBS Forum
76. Under what circumstances should a steam trap be installed? - HCBBS Forum
77. How are martensite, austenite, and bainite formed? - HCBBS Forum
78. Effect of chloride ion concentration on equipment in flue gas wet desulfurization - HCBBS Forum
79. Drawings for such vent valves and flame-arresting breathing manholes - HCBBS Forum
80. The influence of alloying elements on the heating transformation of steel - HCBBS Forum
81. Why are two valves installed? - HCBBS Forum
82. 【Ten Years of Rapid Development in Chemical Equipment】From 2048 to 2024, China’s first EVA ultra-high pressure reactor and intercooler were successfully developed - HCBBS Forum
83. The problem of thermal tightening for small floating heads in heat exchanger maintenance - HCBBS Forum
84. Distillation tower insulation - HCBBS Forum
85. Why can low-carbon steel be welded while high-carbon steel cannot? What is the difference between low-carbon steel and high-carbon steel? - HCBBS Forum
86. Discuss the development trends of packed towers - HCBBS Forum
87. Brief overview of the steps in ultrasonic testing for non-destructive inspection - HCBBS Forum
88. Design steps for shell and tube heat exchangers - HCBBS Forum
89. Is there such a suspension column? - HCBBS Forum
90. Criteria for single openings and multiple openings in the stress reinforcement calculation per GB/T150 - HCBBS Forum
91. Why is a needle valve installed on the pressure gauge of a gas storage tank? - HCBBS Forum
92. What is pipeline heat tracing? - HCBBS Forum
93. The eight main factors affecting the fatigue strength of metal materials - HCBBS Forum
94. Where are check valves installed? - HCBBS Forum
95. Methods for effective equipment integrity management - HCBBS Forum
96. The first batch of 18 3,800-ton over-size equipment manufactured by Zhanghua Ji was shipped and delivered to Beifang Huajin and Zhejiang Petrochemical - HCBBS Forum
97. The effect of nitrogen on the properties of steel - HCBBS Forum
98. Thermal brittleness of steel - HCBBS Forum
99. What to do if the chloride ion level is too high during the on-site hydrostatic test of stainless steel storage tanks? - HCBBS Forum
100. I recommend a free website for checking ASME material properties - HCBBS Forum