FIELD: non-destructive testing.
SUBSTANCE: invention relates to the field of non-destructive testing of products made of non-porous (porosity less than 2%) glass-ceramic materials, namely, color capillary flaw detection for the presence of surface discontinuities, and can be used to remove residual indicator penetrating liquid from the surface of glass-ceramic products after color capillary flaw detection in aviation and aerospace industries. A method is proposed for removing indicator penetrating liquid from the surface of glass-ceramic products, which includes thermal action on the glass-ceramic product after color capillary flaw detection. In this case, the temperature rise is carried out at a rate of 1 to 3.5°C/min to a temperature of 250-350°C, maintained for 1.5 - 2.5 hours at a temperature of 250 - 350°C and inertially cooled to a temperature of 30 - 40°C.
EFFECT: increasing the efficiency of removing the penetrating indicator liquid from the surface of glass-ceramic products after carrying out color capillary flaw detection, maintaining the integrity of the product and its technical characteristics during and after removal of the indicator penetrating liquid (penetrant).
1 cl, 6 dwg, 3 ex
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