English — Forum #276 (Page 22/145)

1. Practical solutions for anti-freezing and anti-condensation in chemical plants during winter - HCBBS Forum
2. Do the stirring method and speed of a CSTR affect the reaction? - HCBBS Forum
3. Filter - HCBBS Forum
4. Q&A on Tubular Heating Furnace Technology [6] - HCBBS Forum
5. Analysis of the reasons why stainless steel welding is difficult - HCBBS Forum
6. What does 48 on the bolt represent? - HCBBS Forum
7. The relationship between heat treatment processes, operations, and deformation - HCBBS Forum
8. What is the price difference between Grade IV forgings and Grade III forgings? - HCBBS Forum
9. For welding titanium-steel composite plates, how should the groove be designed? - HCBBS Forum
10. Both the welding procedure specifications and the cold welding processes specify requirements for non-destructive testing – so which one should be taken as the primary standard and which as a secondary one? - HCBBS Forum
11. Guidelines for the Safe Renovation of Vehicle Loading and Unloading Facilities for Flammable Liquids, Liquefied Hydrocarbons, and Liquefied Toxic Gases in Shandong Province (Trial) - HCBBS Forum
12. Non-destructive testing requirements for product welding specimens - HCBBS Forum
13. What are the key points of device management? - HCBBS Forum
14. Filter mesh count of Y-type filter - HCBBS Forum
15. Understanding the heat-affected zone can improve welding quality - HCBBS Forum
16. Everyone, how should I choose the radiation level in PV? - HCBBS Forum
17. Does anyone here have the standards for ISO 8501 and ISO 8503? - HCBBS Forum
18. UOP reforming regenerator 3D model - HCBBS Forum
19. Is the installation cost of pressure vessels higher than that of vessels under normal pressure? - HCBBS Forum
20. Impact of the equivalent width of the platform operating surface on wind load according to NB/T 47041 tower specifications - HCBBS Forum
21. Basic knowledge of equipment “five senses” inspection and lubrication - HCBBS Forum
22. After the revision of GB/T 24511-2017, can the old version of the standard still be used? Is it effective? - HCBBS Forum
23. Welding thrust current - HCBBS Forum
24. Working pressure of pressure vessel - HCBBS Forum
25. Details that are easily overlooked during the process scale-up - HCBBS Forum
26. Comprehensive Introduction to Duplex Stainless Steel - HCBBS Forum
27. 6 steps for on-site fault vibration analysis - HCBBS Forum
28. Causes of porosity in welding during hot tapping under pressure – keep these 6 points in mind - HCBBS Forum
29. Cracks occurred in the base material of the lower part of the equipment lifting ear pad. How did this phenomenon occur? Is there any similar phenomenon? - HCBBS Forum
30. I have two questions regarding the management of special equipment - HCBBS Forum
31. [Guess what Haichuan Equipment] Which factory is equipped with so many tea boilers? ? ? - HCBBS Forum
32. How to select materials when using stainless steel for the SW6 saddle - HCBBS Forum
33. Detailed explanation of the relationship between elastic modulus and stiffness - HCBBS Forum
34. What is the difference between nitrogen and argon protection in chemical reactions? - HCBBS Forum
35. What are the design criteria and functions of the settlement marker plates on the wall of a methanol storage tank? - HCBBS Forum
36. Answers to questions regarding the GB/T 4334—2020 standard - HCBBS Forum
37. Seek GB/T 9460-2023 copper and copper alloy welding wires - HCBBS Forum
38. Q&A on Welding Materials - HCBBS Forum
39. What exactly does Volumetric Non Destructive Testing refer to in ASME? - HCBBS Forum
40. Standards for stainless steel storage tanks - HCBBS Forum
41. Hydraulic test of the spherical tank - HCBBS Forum
42. Hydrogen embrittlement of titanium containers - HCBBS Forum
43. For sheet metal surface treatment, which process is more difficult: matte or glossy? - HCBBS Forum
44. Seeking manufacturers of storage tanks for sulfuric acid, liquid alkali, and hydrogen peroxide - HCBBS Forum
45. The issue of minimum thickness for pressure vessels - HCBBS Forum
46. Seeking help online regarding the welding areas of the boiler’s heat exchange tubes and headers; cracks have appeared in the welds during boiler operation. - HCBBS Forum
47. Low-energy treatment of sludge dewatered by municipal centrifuges - HCBBS Forum
48. What is the gas distribution structure of a furnace? What the heck are multi-layer gas distribution parachutes and gas collection parachutes? - HCBBS Forum
49. Sharing of GB/T25198-2023 \"Pressure Vessel Heads\" standard, certificate of conformity, and data sheet forms - HCBBS Forum
50. Can the welding procedure qualification for S30408 and Q345R cover the welding of S30408 and steel grade 20? - HCBBS Forum
51. Why are the surface non-destructive testing requirements not considered for the butt welds of carbon steel and austenitic stainless steel pipes? - HCBBS Forum
52. The use of marker pens - HCBBS Forum
53. Calculation of allowable bending moment [ML] at the earthing shell of vertical containers - HCBBS Forum
54. Code of Practice for Post-Weld Heat Treatment - HCBBS Forum
55. Centrifugal pump foundation ‖ Impeller - HCBBS Forum
56. What is the purpose of draining the bottom of the liquid oxygen storage tank? - HCBBS Forum
57. Methods for correcting deformation caused by heat treatment - HCBBS Forum
58. New type of rapid oil tank heater - HCBBS Forum
59. Calculation of rigid ring supports for vertical containers - HCBBS Forum
60. Plate evaporator - HCBBS Forum
61. A Brief Discussion on the Lubrication and Maintenance Management of Mechanical Equipment - HCBBS Forum
62. For spiral plate heat exchangers, how are the numbers of upper and lower clamps on the inverted conical flat cover determined? How is this calculated? - HCBBS Forum
63. Five key aspects of daily instrument maintenance - HCBBS Forum
64. Difference between long-radius elbows and short-radius elbows - HCBBS Forum
65. A more innovative PVELITE user manual - HCBBS Forum
66. Is a qualification required for the design and manufacture of TEMA Class R? - HCBBS Forum
67. Characteristics of the welding heat process - HCBBS Forum
68. To perform TIG welding properly, you must keep these processing taboos in mind! - HCBBS Forum
69. What are the differences between hot rolling and cold rolling? - HCBBS Forum
70. What does “four types of steel” refer to in a welder’s certificate? - HCBBS Forum
71. 11 indicators for equipment management - HCBBS Forum
72. Analysis of the fiber-forming process for refractory ceramic fibers - HCBBS Forum
73. Q&A on Tubular Heating Furnace Technology [3] - HCBBS Forum
74. 8 common causes of superheater tube bursts and solutions - HCBBS Forum
75. How to do process scaling well? - HCBBS Forum
76. What operating conditions need to be calculated during the analytical design of spherical tanks? - HCBBS Forum
77. Points to note in the process design of hydrogenation reactions - HCBBS Forum
78. Centrifugal compressor pipeline vibration problem - HCBBS Forum
79. Are 100% RT inspections required for Class AB welds of pressure vessel shells containing hydrogen? - HCBBS Forum
80. AQ3059-2023 Safety Management Specifications for Liquefied Hydrocarbon Storage Areas in Chemical Enterprises - HCBBS Forum
81. What to do if the pressure in the spherical tank exceeds 6.4 MPa and the diameter exceeds 50 mm? - HCBBS Forum
82. How to deal with the nine major problems of valves? - HCBBS Forum
83. Which standard globe valve should be used with flanges according to the HG20592 standard? - HCBBS Forum
84. Standard required: NB/T 47011-2022 – Zirconium pressure vessels - HCBBS Forum
85. How effective is the insulation of multi-layer structured liquid nitrogen tanks? - HCBBS Forum
86. Working principle, classification, and selection of steam traps - HCBBS Forum
87. The winding layer has turned white - HCBBS Forum
88. “The difference between \"special steel\" and \"high-quality steel\" - HCBBS Forum
89. Heating Furnace Management System - HCBBS Forum
90. Welding issues in pressure vessels - HCBBS Forum
91. Problem with the gasketed flange on the outer cover side of the floating head heat exchanger? - HCBBS Forum
92. Ten aspects affecting the distillation process - HCBBS Forum
93. Detailed classification of special equipment - HCBBS Forum
94. Heat exchanger design - HCBBS Forum
95. Why must oil be prevented from entering the oxygen valve? - HCBBS Forum
96. Corrosion and material selection for the reaction effluent system in hydrogenation units! --Sharing by Sinopec Guangzhou Project Experts - HCBBS Forum
97. Flange connection – why not use 304 bolts? - HCBBS Forum
98. Valve installation issues - HCBBS Forum
99. Maintenance, repair, troubleshooting, and abnormal condition handling for various centrifugal pumps - HCBBS Forum
100. These basic facts about welding preheating - HCBBS Forum