Course Description:
This method involves applying a liquid to the surface of a material and leaving the dye to “dwell” on the surface for a predetermined period of time. The liquid can be either a colour that is easily visible under normal lighting conditions or a yellow/green fluorescent colour that requires special lighting conditions to be seen effectively.
This liquid dye enters into discontinuities that are open to the surface of the material through a phenomenon called “capillary action”. This capillary action takes place throughout the dwell time and the discontinuity retains this dye when the excess dye is cleaned from the surface. A type of developer is then applied to the surface of the material and the dye that is trapped inside the surface discontinuities of blotted back out on to the surface and forms an indication. This indication is then interpreted by a qualified interpreter.
The PT mothed is suitable on most nonabsorbent materials.
Bevelog Nigeria Limited provides Penetrant Testing training course and examination in Port Harcourt, suitable for any of the following NDT certification schemes:
- ISO 9712 Level 2 and 3
- SNT-TC-1A Level 1, 2, 3 in accordance with your written practice
- We can also provide preparation training for ASNT Level 3
Hands-on Training (Practical) Outlines:
- Pre-Cleaning & Post Cleaning
- Visible Water washable method
- Visible solvent removable method
- Fluorescent Water Washable method
- Fluorescent Lipophilic Post Emulsifier Method
- Fluorescent Hydrophilic Post Emulsifier Method
- Welding & Thread Inspection
- Discontinuity Interpretation & Evaluation