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6 Steps of Penetrant Cleaning (7), AMIRUL HAKIMI BIN JAMIL A17SC0284 -…
6 Steps of Penetrant Cleaning (7)
S1 : Pre-cleaning of Test Subject
remove all contaminants from the surface of test component
surface must free from dirt, rust, oil for reliable inspection
Methods used
vapour cleaning
solvent cleaning
ultrasonic cleaning
Metal Smearing
prevent from entering any flaw
Prevention
sandpaper
etching
S2: Penetrant Application
spraying
immersing
brushing
flow-on
Dwell Time
penetrant type
material type
temperature
surface finish
Time vary... (5-60 mins)
material
form of material
penetrant motor
type of defect
application
NDT Officer
determine ideal dwell time for Pt specifically due to particular application
AMIRUL HAKIMI BIN JAMIL A17SC0284