[Methanol Technical Version] Equipment Questions, July 18
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This post was last edited by qy576100527 on 2017-7-18 at 21:58. To increase the popularity of this section, daily quizzes on equipment, processes, and safety are held; the purpose of these quizzes is: \"Knowledge is gained through accumulation.\" I hope everyone will participate actively; by learning and making progress, they can also earn wealth. What are the common defects in pressure vessels? Corrosion, cracks, deformation – Participation: 1 reward in wealth ； Correct answer: Reward of 5-10 wealth points ； Note: Questions for the same day are valid only on that day; this post is valid for 24 hours.
1. Cracks: (1) Cracks on the base material of the vessel wall； (2) Heat-affected zone cracks ； (3) Cracks in the weld area. 2. Welding defects: (1) Lack of fusion ； (2) Incomplete penetration ； (3) Slag inclusions ； (4) Stomata ； (5) Undercut ； (6) Weld bead ； (7) Burn through ； (8) Kerf ； (9) The shape and dimensions of the weld do not meet the requirements. 3. Others: (1) Stratified defects ； (2) Surface opening-type defect ； (3) Erosion defects ； (4) Corrosion defects ； (5) Deformation defects.
Cracks, corrosion, deformation, welding defects, etc
Common surface defects include corrosion, mechanical damage, surface cracks, undercutting, deformation, etc.
The common defects of pressure vessels are as follows. 1. Cracks: (1) Cracks on the base material of the vessel wall ； (2) Heat-affected zone cracks ； (3) Cracks in the weld area. 2. Welding defects: (1) Lack of fusion ； (2) Incomplete penetration ； (3) Slag inclusions ； (4) Stomata ； (5) Undercut ； (6) Weld bead ； (7) Burn through ； (8) Kerf ； (9) The shape and dimensions of the weld do not meet the requirements. 3. Others: (1) Stratified defects ； (2) Surface opening-type defect ； (3) Erosion defects ； (4) Corrosion defects ； (5) Deformation defects.
The common defects of pressure vessels are as follows. 1. Cracks: (1) Cracks on the base material of the vessel wall ； (2) Heat-affected zone cracks ； (3) Cracks in the weld area. 2. Welding defects: (1) Lack of fusion ； (2) Incomplete penetration ； (3) Slag inclusions ； (4) Stomata ； (5) Undercut ； (6) Weld bead ； (7) Burn through ； (8) Kerf ； (9) The shape and dimensions of the weld do not meet the requirements. 3. Others: (1) Stratified defects ； (2) Surface opening-type defect ； (3) Erosion defects ； (4) Corrosion defects ； (5) Deformation defects.
The common defects of pressure vessels are as follows. 1. Cracks: (1) Cracks on the base material of the vessel wall ； (2) Heat-affected zone cracks ； (3) Cracks in the weld area. 2. Welding defects: (1) Lack of fusion ； (2) Incomplete penetration ； (3) Slag inclusions ； (4) Stomata ； (5) Undercut ； (6) Weld bead ； (7) Burn through ； (8) Kerf ； (9) The shape and dimensions of the weld do not meet the requirements. 3. Others: (1) Stratified defects ； (2) Surface opening-type defect ； (3) Erosion defects ； (4) Corrosion defects ； (5) Deformation defects.
1. Cracks: (1) Cracks on the base material of the vessel wall； (2) Heat-affected zone cracks ； (3) Cracks in the weld area. 2. Welding defects: (1) Lack of fusion ； (2) Incomplete penetration ； (3) Slag inclusions ； (4) Stomata ； (5) Undercut ； (6) Weld bead ； (7) Burn through ； (8) Kerf ； (9) The shape and dimensions of the weld do not meet the requirements. 3. Others: (1) Stratified defects ； (2) Surface opening-type defect ； (3) Erosion defects ； (4) Corrosion defects ； (5) Deformation defects.
Welding defects during the production process, corrosion defects during use
The common defects of pressure vessels are as follows. 1. Cracks: (1) Cracks on the base material of the vessel wall ； (2) Heat-affected zone cracks ； (3) Cracks in the weld area. 2. Welding defects: (1) Lack of fusion ； (2) Incomplete penetration ； (3) Slag inclusions ； (4) Stomata ； (5) Undercut ； (6) Weld bead ； (7) Burn through ； (8) Kerf ； (9) The shape and dimensions of the weld do not meet the requirements. 3. Others: (1) Stratified defects ； (2) Surface opening-type defect ； (3) Erosion defects ； (4) Corrosion defects ； (5) Deformation defects.