| Dye Penetrate Inspection |
| Although crude, the technique had all the stages of a modern penetrate NDT procedure: |
- Pre-cleaning.
- Application of a liquid which would penetrate surface cracks.
- Removal of excess penetrates
- Development with an absorbent coating
- Inspection after a reasonable development time
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| The oil and chalk technique was superseded by magnetic particle inspection (M.P.I). Although a more sensitive non-destructive test, M.P.I can only be used on Ferro magnetic materials with the increasing use of aluminum and stainless steel, there was still a need for a sample and effective NDT methods for detection of surface breaking discontinuities. |
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| Our Expertise |
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Cross country Pipelines |
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Foundries |
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Horton Spheres |
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Pressure Vessels and Storage Tanks |
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Nuclear power projects |
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Automobile Components |
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Hydro electric power projects |
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Thermal power stations |
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Shut Down / Annual Maintenance |
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Defence And Aerospace |
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