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6 Steps of Penetrant Cleaning (8ab), AMIRUL HAKIMI BIN JAMIL A17SC0284 -…
6 Steps of Penetrant Cleaning (8ab)
S3: Excess Penetrant Removal
Solvent Removable
wipe with clean cloth removing bulk of excess penetrant
Water Washable
water temp: 50 - 100 F, pressure less than 40 psi
Post-emulsifiable
applied to surface after penetrant dwell time
S4: Developer Application
fluorescent dye - fine developer particles
Incident UV light allows interacting w/ penetrant & cause more efficient fluorescence
more light to emit through same mechanism, indication brighter than Pt under UV light
create white BG
greater contrast degree, better indication
Types
Dry powder
dust cloud chamber
hot-air circulating oven
Wet developer
immerse / spray
Non aqueous
aerosol spray
thin and coating (slight transparent) applied
AMIRUL HAKIMI BIN JAMIL A17SC0284