PENETRANT FOR PERMEABILITY FLAW DETECTION
PROBLEM TO BE SOLVED: To realize a penetrant for permeability flaw detection enabling the permeability flaw detection even if an inspection object is wet.SOLUTION: In a penetrant for permeability flaw detection obtained by mixing at least a fluorescent dye and a surfactant in a volatile organic solv...
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Sprache: | eng ; jpn |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To realize a penetrant for permeability flaw detection enabling the permeability flaw detection even if an inspection object is wet.SOLUTION: In a penetrant for permeability flaw detection obtained by mixing at least a fluorescent dye and a surfactant in a volatile organic solvent, the surfactant containing the penetrant for the permeability flaw detection selects the surfactant having characteristics to be insoluble in water and dispersed in the water. Further, a water-repellent agent is added to the penetrant for the permeability flaw detection. Consequently, the volatile organic solvent is evaporated, and the penetrant for the permeability flaw detection is self-concentrated so that the permeating fluid deposited is hard to mix with the water and difficult to flaw out due to rain water. Hence, the permeability flaw detection is enabled even when an inspection object is wet.SELECTED DRAWING: None
【課題】検査対象が濡れていても浸透探傷検査を可能にする浸透探傷用浸透液を実現する。【解決手段】揮発性有機溶剤中に、少なくとも蛍光染料と界面活性剤とを混合させてなる浸透探傷用浸透液において、浸透探傷用浸透液に含有する界面活性剤は、各種界面活性剤の中から、水に不溶であり、かつ水中で分散した状態になる性状を有しているものを選択した。また、その浸透探傷用浸透液に撥水剤を添加した。こうすることで、揮発性有機溶剤が蒸発して浸透探傷用浸透液が自己濃縮して析出した浸透液成分が水と混和し難くなり、雨水などによって流出し難いので、検査対象が濡れている場合でも浸透探傷検査が可能になる。【選択図】なし |
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