METHOD FOR REMOVING INDICATOR PENETRATING LIQUID FROM SURFACE OF GLASS-CERAMIC PRODUCTS USING ULTRASONIC WAVES Russian patent published in 2021 - IPC B08B3/12 G01N21/91 

FIELD: dye capillary flaw detection.

SUBSTANCE: invention relates to the field of non-destructive testing of products made of non-porous (P <2%) glass-ceramic materials, namely, dye capillary flaw detection for surface discontinuities and serves to exclude excessive thermal loads on fragile products, reduce labor and energy costs during testing. A method is proposed for removing an indicator penetrating liquid from the surface of glass-ceramic products using ultrasonic waves in order to increase the efficiency of removing penetrant into washing solutions heated to + 40-60°C, initially acidic and then alkaline, an ultrasonic wave is introduced from scattering ultrasonic transducers with a frequency of 38-42 kHz and a power of 6 kW, while the total time of ultrasonic cleaning is from 1 to 3 hours, in the process of ultrasonic cleaning, glass-ceramic products rotate.

EFFECT: invention improves efficiency of removing the penetrant from the surface of glass-ceramic products after color capillary flaw detection without heat treatment (burning out).

1 cl, 2 dwg