Categories
- Coating Thickness Gauge
- Magnetic Particle Testing
- Magnetic Particle Inspection(MPI)
- Hardness Tester
- NDT Testing Equipments
- Penetrant Testing
- Test Calibration block
- X Ray Flaw Detector
- Wire rope detector
- Digital Ultrasonic Flaw Detector
- Ultrasonic Thickness Gauge
- Holiday Detector
- Concrete Testing Equipment
- Surface Roughness Tester
- Eddy Current Electric Conductivity Meter
- Profile Projector
- Industrial Endoscope
New product
Penetrant Testing
Penetrant Testing (PT)
Definition: A non-destructive surface testing method to detect open surface defects of workpieces.
Working Principle
Colored or fluorescent penetrant permeates into surface cracks, pores and other defects via capillary action. Excess liquid on the surface is removed, then developer is applied to draw out penetrant and reveal defect shapes.
Application Scope
Dense non-porous workpieces including metal, ceramic, glass and hard plastic.
Main Procedures
- Clean surface to remove oil and rust
- Apply and soak with penetrant
- Remove residual liquid by water washing or solvent
- Spray developer
- Inspect and judge defects visually
Features
Advantages: Easy operation, low cost, full coverage on irregular parts, visible defects.
