Page 26 - Liquid Penetration Inspection

Diploma in Mechanical Engineering (Material)

LIQUID PENETRATION INSPECTION

www.pis.edu.my

Penetrant Materials

1. Surface energy

2. Specific gravity

3. Viscosity
The gravitational force acting on the penetrant liquid
4. Colour and fluorescence brightness
can be working either with or against the capillary
5. Removability
force depending on the orientation of the flaw during

the dwell cycle.

How the specific gravity affect the penetrant

speed?

Increasing the specific gravity by decreasing the

percent of solvent (by volume) in the solution will

increase the penetration speed.

peneraju • ilmu • sejagat