Penetrant Inspection Training Course Syllabus

Dye Penetrant Testing Training Course Syllabus - Level II -Theory

1. INTRODUCTION TO NDT

2. ORIGINS OF DEFECTS

3. REVIEW OF PENETRANT TESTING PROCESSES GIVING
HISTORICAL DEVELOPMENT

4. GLOSSARY OF TERMS

5. TYPES OF PENETRANT PROCESS - CLASSIFICATION

6. PHYSICAL PRINCIPLES
Penetrant action, the importance of contact times; Penetrant removal, emulsification - water washable penetrants and the lipophilic post removal process; Detergent removal (the hydrophilic process); Solvent removal; Comparison of the hydrophilic and lipophilic processes; Drying, the importance of correct procedures; Developer action, absorption of penetrant, blotting, optical effects of developers, the need for contrasting background and the lack of need for fluorescent processes.

7. CHOOSING A PENETRANT PROCESS

8. INSPECTION
White light levels for color contrast processes; Fluorescence, a simple explanation; The spectrum and UVA; Purkinje shift; UVA levels required and allowed levels of white light in inspection booths/areas for inspection after fluorescent penetrant processing; Handling parts; Visual acuity, color vision.

9. HEALTH & SAFETY ASPECTS OF PENETRANT PROCESSING

10. EFFLUENT TREATMENT
Effluent treatment of wash waters; coalescing filters; carbon; reverse osmosis; ultra filtration; Biodegradability.

11. EQUIPMENT
Field test kits; manually operated lines; automation semi and fully automated; processing plant; use of buckets, jigs, turntables and hoists.

12. ELECTROSTATICS
Electrostatic spray applications - of penetrants, of developers.

13. CONTROL CHECKS
Functional tests; physical chemical tests; temperature and pressure; UVA Lamps; tank levels; cleanliness.

14. PROCESSING OF COMPONENTS

PREPARATION of surfaces, removal of oxide, paint grease and other contaminants, the importance of the surface being dry.
Chemical methods, vapour degreasing, mechanical methods (including fruit stone grit) advantages, disadvantages and precautions.

PENETRANT application - immersion, flow on, brush on, conventional spray including aerosols, electrostatic spray.

WATER WASHING procedures, total removal of water washable penetrant, pre-rinsing in the Hydrophilic process, post- rinsing in the Lipophilic process.

REMOVER application of hydrophilic and lipophilic removers, immersion spray form (Hydrophilic only), solvent application, Solvent wipe, vapour application.
DRYING when to dry, before developer application or after,
methods of drying hot air blast, recirculating air oven - aids to drying, hot dip low-pressure air.

DEVELOPER application; different types of developer and application; Dry powders, dust storm, fluidized bed, electrostatic spray dusting on. Dangers of immersion.
Non-aqueous liquid developers spray only; dangers of other methods. Different techniques for fluorescent and colour contrast processes. Aqueous developers, solutions and suspensions, immersion and spray application. Dangers of over application of developer.

15. INTERPRETATION OF INDICATIONS
False indications; irrelevant indications; typical forms due to cracks, porosity, laps, cold shuts, typical weld defect indications, etc.

16. CONTAMINATION & ABUSE
Penetrant contamination; Remover contamination; Developer contamination. Water the universal contaminant.

17. PERMANENT RECORDS OF INDICATIONS
Transfer lacquer; Photography

18. SPECIFICATION AND DOCUMENTATION
General specification; Process control cards; Quality assurance standards.

For course registrations e-mail us at sales@ndt-consultants.co.uk. Please check the training calendar before to see which courses are available!

Penetrant Inspection Training

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