Presentation on Technique of Engin Inspection(1)
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This presentation summarizes techniques for inspecting engines, including dye penetrant testing and magnetic particle testing. Dye penetrant testing uses cleaner, penetrant, and developer liquids to detect surface cracks. Magnetic particle testing detects cracks by magnetizing an area and observing iron particles clustering at defects. It can find surface and subsurface defects in ferromagnetic metals like iron and is commonly used to detect welding flaws. The presentation demonstrates these methods and shows examples of defects found during engine inspections.
Presentation on Technique of Engin Inspection(1)
- 1. Presentation on Technique of Engine Inspection Presentation on Technique of Engine Inspection Ferdous Kabir Marketing Manager (ASNT NDT Level-II in UT, RT, PT and ISO Level-II MT) Saj Engineering & Trading Company
- 2. Died 1800 boilers exploded of Sultana Ship, Lack of just time just maintenance Died 1800 boilers exploded of Sultana , Lack of just time just maintenance
- 3. Date of Inspection : 11 and 14 October, 2012 Generation Capacity: 5 MW Total Running Time: 40,564.50 Hours
- 5. Bearing Housing Upper Hub Bearing Housing
- 6. Lower Hub
- 7. Gudgeon Pin
- 9. Piston Crown
- 10. Cylinder Head
- 11. BOLT
- 12. BearingBearing
- 18. Dye Penetrant Testing This method is commonly used for detect the surface cracks or defects. Dye penetrant Testing (DPT) is one of the most widely used nondestructive Testing (NDT) methods. DPT can be used to inspect almost any material provided that its surface is not extremely rough. This method is commonly used for detect the surface cracks or defects. Dye penetrant Testing (DPT) is one of the most widely used nondestructive Testing (NDT) methods. DPT can be used to inspect almost any material provided that its surface is not extremely rough.
- 19. Dye Penetrant Testing Process Three liquids are used in this method. 1. Cleaner 2. Penetrant 3. Developer Three liquids are used in this method. 1. Cleaner 2. Penetrant 3. Developer
- 24. What is Magnetic Particle Testing? Detecting Crack by make magnetize certain area Detecting Crack by make magnetize certain area
- 25. Which Material we can inspect by use Magnetic Particle Testing Method? A material is considered ferromagnetic if it can be magnetized. Materials with a significant Iron Nickel or Cobalt content are generally ferromagnetic. A material is considered ferromagnetic if it can be magnetized. Materials with a significant Iron Nickel or Cobalt content are generally ferromagnetic.
- 26. What Kinds of Defect we can detect by use Magnetic Particle Testing Method? Two kinds of defect we can detect by use this method? SURFACE DEFECT SUBSURFACE DEFECT Two kinds of defect we can detect by use this method? SURFACE DEFECT SUBSURFACE DEFECT
- 27. What type of defect we can detect by use this method? Welding Defect (Incomplete Fusion, Slag Inclusion and Porosity, Inadequate Joint Penetration, Under Cut) Seams Laps Grinding cracks Quenching cracks In-service damage Fatigue Overload cracks Lamination Welding Defect (Incomplete Fusion, Slag Inclusion and Porosity, Inadequate Joint Penetration, Under Cut) Seams Laps Grinding cracks Quenching cracks In-service damage Fatigue Overload cracks Lamination
- 28. Usage Procedure of MPI Test Clean the part Magnetize the part Apply the magnetic particles Inspect and mark defects Demagnetize the part Clean the part Clean the part Magnetize the part Apply the magnetic particles Inspect and mark defects Demagnetize the part Clean the part
- 31. How Does Magnetic Particle Inspection Work? (Cont.) Finely milled iron particles coated with a dye pigment are applied to the test specimen. These particles are attracted to leakage fields and will cluster to form an indication directly over the discontinuity. This indication can be visually detected under proper lighting conditions.
- 33. A B C
- 34. A: Length of Indication 13 mm A: Length of Indication 13 mm A: Length of Indication 13 mm A: Length of Indication 13 mm 25mm 23mm 4mm
- 39. We are experience d in our field, Let us help you Thank You We are experience d in our field, Let us help you Thank You