Specular electrolytic iron containing fluorescent paramagnetic pigments for flaw detection
Abstract
Abstract A FLUORSCENT PARAMAGNETIC PIGMENT CONSISTING ESSENTIALLY OF FINELY DIVIDED SPECULAR ELECTROLYTIC IRON POWDER COATED WITH A FLUORESCENT MATERIAL CONSISTING OF A DAYLIGHT FLOURESCENT DYESTUFF IN A RESINOUS BASE, WITH THE WEIGHT RATIO OF DAYLIGHT FLUORESCENT MATERIAL TO THE ELECTROLYTIC IRON BEING BETWEEN 1 TO 1 TO 100. A CRACK DETECTOR COMPOSITION COMPRISING A UNIFORM DISPERSION OF THE AFORESAID FLUORESCENT PARAMAGNETIC PIGMENT IN A LIQUID VEHICLE. THE METHOD FOR FORMING THE AFORESAID FLUORESCENT PARAMAGNETIC PIGMENT WHICH COMPRISES UNIFORMLY MIXING A SOLUTION OF THE FLUORESCENT MATERIAL AND FINELY DIVIDED SPECULAR ELECTROLYTIC IRON POWEDER, REMOVING THE SOLVENT FOR THE FLUORESCENT MATERIAL SO AS TO DEPOSIT THE FLUORESCENT MATERIAL ON THE ELECTROLYTIC IRON POWDER BY EVAPORATION WITH THE WEIGHT RATIO OF THE FLUORESCENT MATERIAL TO THE ELECTROLYTIC IRON BEING AS AFORESAID.
Inventors
- 👤 David Diperstein
- 👤 David P Mason
Bibliographic Details
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