English — Forum #276 (Page 45/145)

1. We are preparing a new hydrogenation project; those with experience in reactors and towers are welcome to discuss this - HCBBS Forum
2. The moment-free theory of thin-walled shells, the assumptions of the moment-free theory - HCBBS Forum
3. Animated video: 37 principles of chemical reactions and their dangers – Lithium Tree Silver Flower - HCBBS Forum
4. Discussion on the effective reinforcement width B in perforated reinforcement calculations - HCBBS Forum
5. [Interpretation of the Special Equipment Safety Law] Article 8** - HCBBS Forum
6. What kinds of containers are high-strength steel generally used in? - HCBBS Forum
7. On the issue of the boundaries between the processes and equipment specialties in chemical plants - HCBBS Forum
8. Weldability of typical welding materials - HCBBS Forum
9. Analysis of the causes of failure in heat exchanger tube bundles - HCBBS Forum
10. Construction technical briefing for vertical cylindrical steel welded storage tanks - HCBBS Forum
11. Installation of the integrated wire mesh demister for lower units - HCBBS Forum
12. Spiral seal - HCBBS Forum
13. Notice from the General Office of the State Administration for Market Regulation on Accelerating the Safety Inspection and Rectification of Gas Pressure Pipelines - HCBBS Forum
14. Requirements for pressure gauges used in pressure testing of pressure equipment - HCBBS Forum
15. Acceptable grade for head butt welds - HCBBS Forum
16. 2021 Suzhou Design Approval Officer Defense Questions (Reposted) - HCBBS Forum
17. May I ask, for the pressure vessel manufacturing certificate that includes designs from our factory, what stamp should be used on the design drawings? - HCBBS Forum
18. Supply condition of equal-length double-headed studs per GB/T901 - HCBBS Forum
19. What are the technical requirements for pressure vessels? - HCBBS Forum
20. Leak detection and repair in refining and petrochemical plants - HCBBS Forum
21. expansion joint - HCBBS Forum
22. Information on special equipment related to public messages on the State Administration for Market Regulation - HCBBS Forum
23. Determination of ferrite content - HCBBS Forum
24. Turbine - HCBBS Forum
25. Measures to eliminate welding residual stress in pressure vessels - HCBBS Forum
26. Ceramic-lined backpack elbow - HCBBS Forum
27. Can the 25mm straight edge of the head be cut off? - HCBBS Forum
28. Selection of Chemical Equipment and Process Design - HCBBS Forum
29. Chloride ion corrosion ring material selection - HCBBS Forum
30. Analysis of the difficulties in processing stainless steel materials - HCBBS Forum
31. Questions about pressure pipeline valves - HCBBS Forum
32. Is root welding using gas shielded welding considered equivalent to double-sided welding? - HCBBS Forum
33. Animated video: 37 principles of chemical reactions and their dangers – Decomposition of mercuric thiocyanate (“Pharaoh’s snake”) - HCBBS Forum
34. Advantages and disadvantages of wrapping pads and cushioning mats - HCBBS Forum
35. The quality of the drawings is terrible; failure to follow the drawing standards is the main cause - HCBBS Forum
36. I have a humble question: I currently have a mechanical processing factory that purchases plate-welded pipes manufactured by other companies (using manual arc welding, not submerged arc welding). Is it necessary to carry out manufacturing supervision and inspection for these pipes? - HCBBS Forum
37. Can horseshoe joint fittings be used for pressure pipeline piping? - HCBBS Forum
38. Regarding pressure vessels that have reached the design service life or have been used for more than 20 years - HCBBS Forum
39. Animated video: 37 principles of chemical reactions and their dangers—The Pillar of Darkness - HCBBS Forum
40. Ceramic-lined composite steel pipe - HCBBS Forum
41. Please, expert, regarding the issue of boiler paralleling! - HCBBS Forum
42. Basic knowledge of sealing technology - HCBBS Forum
43. Container component calculation software - HCBBS Forum
44. Animated pictures of 37 chemical reaction principles and dangers---Elephant Toothpaste - HCBBS Forum
45. I would like to know why, in the environment of wet hydrogen sulfide stress corrosion, ferritic stainless steels such as S11306 and S11348 are recommended, while austenitic stainless steels are not? - HCBBS Forum
46. Anti-corrosion and insulation measures for heavy oil storage tanks - HCBBS Forum
47. [Interpretation of the Special Equipment Safety Law] Article 93 - HCBBS Forum
48. Problems with the maintenance and renovation of vertical cylindrical storage tanks. - HCBBS Forum
49. Three important points for maintenance of combustible gas detectors - HCBBS Forum
50. The ball tank nozzle flange bolts have been changed from alloy steel to stainless steel - HCBBS Forum
51. Summary of basic knowledge on heat treatment - HCBBS Forum
52. The job responsibilities of designers at various levels for pressure vessels – have you fulfilled your duties? - HCBBS Forum
53. Request for GB/T 228.1-2021 Metallic materials – Tensile testing – Part 1: Method of test at room temperature. Request for GB/T 41110-2021 Flux-cored wires for nickel and nickel alloys - HCBBS Forum
54. Application standards for pressure pipeline components in China - HCBBS Forum
55. Does 16MnD always need to be heat-treated? - HCBBS Forum
56. The main steps of chemical pipeline cleaning - HCBBS Forum
57. What is the importance of machining processes? How to optimize machining processes - HCBBS Forum
58. Welding joint coefficient of the head - HCBBS Forum
59. Design of non-standard pressure vessels - HCBBS Forum
60. Flange joint sealing—why are bolts not recommended to be made of 304 material? - HCBBS Forum
61. How to choose a pressure gauge for pressure vessels - HCBBS Forum
62. In SW6, regarding the reinforcement data for openings in towers, does it require calculations to be done for all pipe ends? - HCBBS Forum
63. The relationship between atmospheric pressure, absolute pressure, and gauge pressure - HCBBS Forum
64. Specific calculation steps for the design of the reinforcement ring in high-pressure rotary film deaerators – seeking advice from experts - HCBBS Forum
65. Welding procedure qualification for the weld joint between heat exchange tubes and tube sheets - HCBBS Forum
66. The installation position of the regulating valve is specified as follows: - HCBBS Forum
67. [Daily Question] - HCBBS Forum
68. Process control for stainless steel pickling and passivation - HCBBS Forum
69. How are the hydrostatic test values determined in a boiler assembly plant? - HCBBS Forum
70. Cold storage cooling load estimation and equipment selection - HCBBS Forum
71. GBT40424-2021 Welding Procedure Qualification Tests for Tubes and Tube Sheets - HCBBS Forum
72. 【Haichuan Equipment Guessing Game】The bypass equipment located on the main water supply pipe for domestic use - HCBBS Forum
73. Issues regarding the absence of straight edges in the spherical head HHA and its weld joints to the cylinder - HCBBS Forum
74. How to choose the cylinder of EHA500 - HCBBS Forum
75. Flange type of the connection pipe for the ammonia storage tank - HCBBS Forum
76. Which big brother has this software, SBCAD? - HCBBS Forum
77. What documents are required from design certification agencies for Class A (A1–A4) pressure vessels? The standards specified in TSG07-2019 are not detailed enough; the more detailed, the better! Thank you so much - HCBBS Forum
78. Welding Process Standards for Steel Structures - HCBBS Forum
79. What material should be used for the supports of Cr-Mo steel containers? - HCBBS Forum
80. General construction procedures for magnetic particle testing - HCBBS Forum
81. For pressure vessel welds, when gas shielded welding is used for the root pass, does this constitute double-sided welding? - HCBBS Forum
82. Color ring specifications for above-ground storage tanks of flammable liquids - HCBBS Forum
83. What are the factors that can easily cause hex copper screws to rust? - HCBBS Forum
84. The YOTcs580 hydraulic coupling uses sliding bearings to address the issue of wear in mechanical equipment! - HCBBS Forum
85. Several issues regarding the red line on pressure gauges - HCBBS Forum
86. Analysis of Typical Accident Cases Involving Special Equipment - HCBBS Forum
87. Regarding quick-connect fittings - HCBBS Forum
88. Which failure modes are primarily considered in GB/T 150-2011? - HCBBS Forum
89. How to fill in the quality grade for ultrasonic testing of pressure vessels - HCBBS Forum
90. Preventive measures against stress corrosion - HCBBS Forum
91. Why is there severe vibration when the centrifuge reaches 400 revolutions during shutdown? - HCBBS Forum
92. Common Problems and Analysis in Pressure Vessel Manufacturing - HCBBS Forum
93. Must the emergency pressure relief manhole be installed vertically upward? - HCBBS Forum
94. Material selection issues for acid ethanol storage tanks - HCBBS Forum
95. Are there any requirements regarding material re-inspection and product welding test plates in ASME Section VIII-1? - HCBBS Forum
96. What factors determine the pressure level inside the deaerator? - HCBBS Forum
97. I’m a beginner in equipment management and would like to ask about the breather valves and pressure relief manholes of atmospheric storage tanks - HCBBS Forum
98. Elbow material - HCBBS Forum
99. Common questions for spherical tank defense presentations - HCBBS Forum
100. Consulting about issues with boiler, turbine, and steam pipelines - HCBBS Forum