Dye penetrant for surfaces subsequently contacted by liquid oxygen
Abstract
Abstract A DYE PENETRANT INSEPCTION MATERIAL AND TECHNIQUES ARE DESCRIBED FOR NONDESTRUCTIVE TESTING OF SOLID SURFACES THAT MAY BE CONTACTED BY LIQUID OXYGEN. THE DYE PENETRANT SOLUTION COMPRISES A TRIFLUOROCHLORETHYLENE POLYMER HAVINA A DEGREE OF POLYMERIZATION IN THE RANGE OF FROM 2 TO 10 IN A QUANTITY SUFFICIENT TO SUPPRESS VIOLENT REACTION OF THE SOLUTION WITH LIQUID OXYGEN, A HALOGENATED SOLVENT HAVING AN EVAPORATION RATE NOT GREATER THAN THE EVAPORATION RATE OF METHYLENE CHLORIDE AND MISCIBLE WITH SAID POLYMER, PLUS A SYE SOLUBLE IN SAID POLYMER AND SAID SOLVENT, THE QUANTITY OF SAID DYE BEING NOT GREATER THAN 1:20 RELATIVE TO SAID POLYMER SO THAT THE SOLUTION IS SUBSTANTIALLY INSENSITIVE TO REACTION TO STRONGLY OXIDIZING MATERIALS.
Inventors
- 👤 Ralph M F Giles
- 👤 Isidore Pollack
Bibliographic Details
Claims Analysis
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