English — Forum #276 (Page 18/145)

1. Is it meaningful to develop a compact design for a dual-power source disturbance-free quick switching device? - HCBBS Forum
2. Engineering Applications of Monel Alloy - HCBBS Forum
3. 【Ten Years of Rapid Development in Chemical Equipment】2017–2024: Jiangsu Jiangguo Manufacturing the First Domestic Cryogenic Heat Exchanger Made from Entirely Domestic Materials for Pyrolysis Gases - HCBBS Forum
4. Why is it necessary to conduct impact testing on the heat-affected zone during impact tests, when the heat-affected zone is not part of the weld? - HCBBS Forum
5. How long should be left after the bolts are tightened? - HCBBS Forum
6. Should titanium plates and titanium tubes be manufactured in accordance with the new standards or the old standards? - HCBBS Forum
7. Why is a hydrostatic test still required when the MAWP has already been determined? What exactly is being verified by expanding the hydrostatic test stress to 0.9Rel? - HCBBS Forum
8. What are the causes of equipment failures? - HCBBS Forum
9. On-site welding of the reactor for a 260,000-ton acrylonitrile plant - HCBBS Forum
10. What factors should be considered when choosing a quick-switching device in industrial applications? - HCBBS Forum
11. Three Checks and Four Fixes for Petrochemical Plants - HCBBS Forum
12. Basic knowledge of pipe fittings - HCBBS Forum
13. Installation of flame arresters in chemical processing units - HCBBS Forum
14. What should be done when a spherical tank needs to store multiple types of media? What are the key points? - HCBBS Forum
15. How should the air supply pipelines for pneumatic instruments in chemical plants be configured safely? - HCBBS Forum
16. Practical Handbook on New Processes, Technologies for the Selection, Design, and Manufacturing of Filters, as Well as Quality Inspection Standards and Specifications - HCBBS Forum
17. 12 super classic bolt anti-loosening designs - HCBBS Forum
18. Regarding the calculation of filter pressure drop - HCBBS Forum
19. The relationship between DCS, DEH, TSI, and ETS - HCBBS Forum
20. Boiler technical question bank - HCBBS Forum
21. FAQs on Common Boiler Problems - HCBBS Forum
22. What are the functions of the various “holes” on the valve body of a safety valve? - HCBBS Forum
23. International Welding Procedure Specifications and International Welder Certification Standards - HCBBS Forum
24. 100 Key Points to Know for Pressure Vessel Design Review - HCBBS Forum
25. All domestic and international grades of nickel alloy steel - HCBBS Forum
26. Zhang Huajī efficiently completed the general contracting of Hualu Engineering for the production of polypropylene (PP) reactors at Fujian Gulei - HCBBS Forum
27. I would like to ask everyone: is it okay if a measurement report has the CNAS seal but not the CMA seal? - HCBBS Forum
28. Why does the absence of a check valve at the pump outlet easily lead to water hammer? - HCBBS Forum
29. Are the principles of strain failure and strain strengthening the same? - HCBBS Forum
30. Weld assessment coverage issue? - HCBBS Forum
31. Precautions for the oil removal process using heat exchanger baffle plates - HCBBS Forum
32. Tank types required for tank settlement testing - HCBBS Forum
33. Pressure values for the sensitivity leak test - HCBBS Forum
34. What do Sch and Class mean in ASME? - HCBBS Forum
35. Lu’an Huaji manufactures complete sets of equipment for overseas propane dehydrogenation projects - HCBBS Forum
36. Patterns of pump failures - HCBBS Forum
37. Provisions on airtightness testing in GB150 - HCBBS Forum
38. Issues regarding phosphorus and sulfur content in welding materials as specified in GB/T 150 - HCBBS Forum
39. Side wall lifting lug broken - HCBBS Forum
40. A quick overview of the FSC disturbance-free rapid frequency switching cabinet - HCBBS Forum
41. Why does the bearing temperature rise after grease is applied? - HCBBS Forum
42. When should thread milling be used instead of tap cutting to create threads? - HCBBS Forum
43. Determination of pipeline pressure rating - HCBBS Forum
44. Regarding the temperature for hydraulic testing of pressure vessels? - HCBBS Forum
45. Emergency Plan Management System for Special Equipment - HCBBS Forum
46. Rules for selecting welding materials for dissimilar steel and heterogeneous steels - HCBBS Forum
47. What is the purpose of the concentration ratio of circulating water? - HCBBS Forum
48. Looking for a calculation software for the legs of small horizontal containers - HCBBS Forum
49. Looking for the Sinopec 2003 edition of the \"Training Manual for Pressure Vessel Designers\" - HCBBS Forum
50. Specifications for pressure testing of metal bellows - HCBBS Forum
51. Technical requirements for the procurement of pressure vessel heads - HCBBS Forum
52. Definition of high-alloy high-strength steel - HCBBS Forum
53. Safety of explosion-proof electrical equipment - HCBBS Forum
54. What do people say this is? - HCBBS Forum
55. Gas-liquid combined test of atmospheric pressure anchoring tank - HCBBS Forum
56. What information is included in the factory data for safety valves? - HCBBS Forum
57. Is there any organization looking for someone for non-destructive testing? - HCBBS Forum
58. Some on-site photos of Xiangyang Xingfa Chemical Co., Ltd. – the fully automatic, intelligent fluid loading/unloading arm designed specifically for yellow phosphorus - HCBBS Forum
59. Pump leakage - HCBBS Forum
60. Why was the joint factor of 0.6 canceled when non-destructive testing cannot be performed on Class B circumferential joints? - HCBBS Forum
61. gb29463 - HCBBS Forum
62. For local non-destructive testing equipment, the default value for the coefficient SW6 in the case of opening reinforcement is 1; the inspection level within the reinforcement area is determined through coordination between design and inspection processes - HCBBS Forum
63. The rivalry among regulatory bodies for special equipment - HCBBS Forum
64. Selection of safety valves - HCBBS Forum
65. The calculation formulas for conical heads in GB25198-2022 are incorrect as well - HCBBS Forum
66. Brief overview of the steps involved in ultrasonic testing for non-destructive inspection - HCBBS Forum
67. Corrosion and protection of shut-down boilers - HCBBS Forum
68. Polytetrafluoroethylene (PTFE) lining - HCBBS Forum
69. VOCs control (oil and gas recovery system) - HCBBS Forum
70. Discussion on pressurizing heat exchangers - HCBBS Forum
71. Issues to consider regarding heat insulation on the surface of stainless steel equipment - HCBBS Forum
72. Formula for calculating pipeline flow rate and velocity - HCBBS Forum
73. What is the difference between heat retention and heat insulation? - HCBBS Forum
74. Summary of the basic elements, framework, and management experience for equipment integrity in the petrochemical industry - HCBBS Forum
75. Mechanics of Materials: Hoop stress, the relationship between circumferential stress and internal forces, thermal expansion, and the difference between expansion due to forces and expansion under stress - HCBBS Forum
76. Basic knowledge of circulating water - HCBBS Forum
77. Thought-provoking questions for the defense of some pressure vessel design reviewers - HCBBS Forum
78. Is it pitting? - HCBBS Forum
79. Motor and bearing temperature specifications - HCBBS Forum
80. Which storage tanks require a nitrogen sealing system - HCBBS Forum
81. Classification of submerged arc welding wire-flux combinations - HCBBS Forum
82. Transformations of steel during heating: Factors affecting the rate of austenite transformation - HCBBS Forum
83. What are the requirements for the welding joint coefficient and its values, and how do the design codes specify them? - HCBBS Forum
84. Request drawings for static equipment - HCBBS Forum
85. Brief Introduction to Process Equipment - HCBBS Forum
86. 【Ten Years of Rapid Development in Chemical Equipment】From 2086 to 2024, CIMC Suntain designed and manufactured China’s first commercial liquid hydrogen sphere tank; construction began in Fuyang - HCBBS Forum
87. Welding procedure qualification for aluminum alloys - HCBBS Forum
88. carbon equivalent - HCBBS Forum
89. Relevant requirements for non-destructive testing in GB150.4 - HCBBS Forum
90. What is air separation? Air separation units and systems - HCBBS Forum
91. Should the bolts be tightened back 3 threads after tightening? - HCBBS Forum
92. What are the sources of pressure in pressure vessels? - HCBBS Forum
93. How is the allowable external bending moment of the housing at the ear-type support calculated? - HCBBS Forum
94. I would like to know what problems have occurred during the use of the Shenning vaporization furnace - HCBBS Forum
95. Why does ammonia escape? - HCBBS Forum
96. What are the methods of purging and cleaning? - HCBBS Forum
97. Inspection - HCBBS Forum
98. Charpy impact test - HCBBS Forum
99. Proper selection and use of steam flow meters - HCBBS Forum
100. Port Instructions for DCM635 Power Supply Seamless Rapid Switching Device - HCBBS Forum