English — Forum #276 (Page 11/145)

1. Equipment Inspection Log Management Table - HCBBS Forum
2. The role of chromium (Cr) in steel - HCBBS Forum
3. SW6 calculation of flange problems - HCBBS Forum
4. Selection of welding materials for pressure vessels that require heat treatment - HCBBS Forum
5. Material properties that need to be entered for linear elastic analysis under internal pressure - HCBBS Forum
6. General principles for selecting steel plates for pressure vessels - HCBBS Forum
7. Conduct weld procedure qualification according to the new standards - HCBBS Forum
8. Sharing on the classification of pressure vessels - HCBBS Forum
9. Flatness requirements for the bottom ring plate of the tower skirt - HCBBS Forum
10. Bottomless rectangular tank - HCBBS Forum
11. 【Ten Years of Rapid Development in Chemical Equipment】The zirconium-based dehydration tower, a key piece of equipment for the world’s largest acetic acid production facility using zirconium, 2034–2024 - HCBBS Forum
12. Solutions to heat treatment deformation problems - HCBBS Forum
13. Ten Questions and Answers on Explosion Prevention Knowledge - HCBBS Forum
14. Difference between explosion protection marks Ex d and Ex db - HCBBS Forum
15. What exactly are aerated systems and non-aerated systems? - HCBBS Forum
16. Skirt base of pure titanium tower - HCBBS Forum
17. Analyzing the causes of failure in mechanical seals from the perspective of failure modes - HCBBS Forum
18. The SW6-2024 V1.0 version of the National Chemical Equipment Design Technology Center is currently under testing - HCBBS Forum
19. Basic principles of single-sided welding for double-sided formation - HCBBS Forum
20. I’d like to ask everyone, how long does it generally take to create the drawings for a piece of equipment? - HCBBS Forum
21. Identify abnormal noises and vibrations in the equipment by relying on hearing - HCBBS Forum
22. Fundamentals of Metal Materials: Metal Segregation - HCBBS Forum
23. A brief discussion on thermal cracking, reheat cracking, cold cracking, and layered tearing - HCBBS Forum
24. Why is it rare to specify an upgraded base material during design for products manufactured through prolonged normalizing and tempering? - HCBBS Forum
25. What special equipment requires an annual inspection? - HCBBS Forum
26. Dynamic and static balance - HCBBS Forum
27. What is the difference between the three concepts of bolts, screws, and nuts? - HCBBS Forum
28. What material is suitable for the distillation column in hydroxyphenylacetone production plants? - HCBBS Forum
29. Discussion on the selection of heat exchangers and materials for cooling hot concentrated sulfuric acid - HCBBS Forum
30. How to store welding rods - HCBBS Forum
31. Why is titanium difficult to machine? - HCBBS Forum
32. Requirements for bolt processing of fatigue-resistant containers - HCBBS Forum
33. Guidelines for Implementing a Equipment Management System - HCBBS Forum
34. Is the activated carbon adsorption box designed as a negative-pressure container? - HCBBS Forum
35. How to choose a suitable anti-interruption module - HCBBS Forum
36. Non-destructive testing of Class D seams - HCBBS Forum
37. How to quickly convert toxic gas concentrations from ppm to mg/m3 - HCBBS Forum
38. Do the tie rods of the expansion joint need to be removed? - HCBBS Forum
39. “\"Three Checks and Four Fixes\" Inspection Checklist - HCBBS Forum
40. Principles for drawing pressure vessel drawings - HCBBS Forum
41. Sinopec training materials – Static equipment - HCBBS Forum
42. Interrelationships between pressure types - HCBBS Forum
43. Winter measures to prevent freezing and condensation of instruments - HCBBS Forum
44. Is the control valve a selector valve or a bypass valve? - HCBBS Forum
45. Common types of chemical industry explosion-proof equipment - HCBBS Forum
46. Regulations on safety supervision for the seven key aspects of pressure vessels - HCBBS Forum
47. Conversions of common units such as %LEL and %VOL - HCBBS Forum
48. Risk analysis in equipment management - HCBBS Forum
49. Detailed explanation of dew point corrosion - HCBBS Forum
50. What is the basic process of steelmaking? - HCBBS Forum
51. Domestic and international applications of duplex stainless steel - HCBBS Forum
52. How do the stirring method and speed of the reactor affect the reaction? - HCBBS Forum
53. What is the purpose of the deaerator heating steam inlet balance pipe? - HCBBS Forum
54. Is a higher weld bead height always better? - HCBBS Forum
55. Large stainless steel storage tanks require pickling and passivation; how is the quality of pickling and passivation tested? - HCBBS Forum
56. Surface treatment techniques for stainless steel and their applications - HCBBS Forum
57. What are the energy consumption optimization techniques for reaction vessels? - HCBBS Forum
58. Maintenance of steam pipes after long-term disuse - HCBBS Forum
59. Principles for setting blind plates and common mistakes - HCBBS Forum
60. What is a water expansion tank - HCBBS Forum
61. The overall local detection coefficient is 0.85; the coefficient is set to 1 when calculating external pressure instability. Is this related to the flaw detection grade of level II? - HCBBS Forum
62. What is online monitoring in RBI’s risk-based testing? - HCBBS Forum
63. Classification of petrochemical static equipment - HCBBS Forum
64. Interpretation of Laws and Regulations on Safe Production of Special Equipment - HCBBS Forum
65. Some knowledge about steel plates - HCBBS Forum
66. How much labor cost is required to conduct a weld evaluation these days? - HCBBS Forum
67. Measures to improve the microstructure and properties of weld metal in carbon steel and low-alloy steel—Weld metal alloying - HCBBS Forum
68. What is the enthalpy of water and water vapor? - HCBBS Forum
69. Which is better, a plate tower or a packed tower? - HCBBS Forum
70. Is stress analysis required at the corners of flexible tube sheets? - HCBBS Forum
71. Four welding methods for root welding of stainless steel pipes using TIG welding - HCBBS Forum
72. GB/T150-2024 head welding test pieces - HCBBS Forum
73. Standards related to API compressors - HCBBS Forum
74. Maximum opening diameter dmax in GB/T150.3-2024 - HCBBS Forum
75. Surface heat treatment technology - HCBBS Forum
76. What type of valve is this? - HCBBS Forum
77. Maintenance methods and quality standards for reaction kettles - HCBBS Forum
78. What measures should be taken to prevent freezing in chemical plants during winter? - HCBBS Forum
79. What is an indicator for the pig in long-distance pipelines? - HCBBS Forum
80. The main methods of flow regulation in centrifugal pumps - HCBBS Forum
81. Failure modes of pressure vessels and preventive measures - HCBBS Forum
82. 47014 Determination of the number of mechanical property specimens - HCBBS Forum
83. Welding of pressure vessel nozzles and reinforcement rings - HCBBS Forum
84. How to perform verification for connecting the upper pipe opening of a storage tank to a 5-ton heat exchanger? - HCBBS Forum
85. Calculation of the reaction vessel residence time - HCBBS Forum
86. Welding problems and characteristics of austenitic stainless steel - HCBBS Forum
87. Why does breaking the vacuum require around 300–400 r/min during a normal shutdown? - HCBBS Forum
88. Enclosure setup for acid and alkali storage tanks - HCBBS Forum
89. The ten key elements of equipment inspection - HCBBS Forum
90. Pressure Vessel Design Review Question Bank (Short Answer Questions 2/3) - HCBBS Forum
91. Problems related to the vapor space in containers - HCBBS Forum
92. What contents are included in the design of safety facilities for hazardous chemicals construction projects? - HCBBS Forum
93. Regular inspection of atmospheric pressure storage tanks and requirements for inspection qualifications - HCBBS Forum
94. The first strength theory is applicable to brittle materials; then, is it reasonable to use the first strength theory for plastic materials as specified in GB150 as well? - HCBBS Forum
95. How to choose the right stainless steel cored wire for welding? - HCBBS Forum
96. New standards for the safety management of special equipment: Criteria for identifying 10 types of major hazards are set to be released! - HCBBS Forum
97. Chinese researchers have overcome the world’s toughest challenge in preventing metal fatigue damage - HCBBS Forum
98. How can σ-phase be precipitated in ferritic stainless steel? - HCBBS Forum
99. Can safety valves be calibrated online every year? - HCBBS Forum
100. Discussion on Quality Improvement of Class D Welded Joints in Pressure Vessels - HCBBS Forum