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概况渗透检验是较早使用的非破坏检验方法之一。其历史已有六十多年了。1930年之前,发展较慢。主要用于铁路交通关键性零件的探伤。早期方法为原始的“油白法”。第二次世界大战期间,由于航空工业的发展,非铁磁性材料(Al、Mg、Ti 合金)大量使用,渗透法便引起普遍重视,促使1942年出现具有染料、表面活性剂的荧光液。随后,由于自乳化荧光液的灵敏度已不能满足要求,五十年代末期,出现了灵敏度高的后乳
Overview Penetration testing is one of the earlier non-destructive testing methods used. Its history has been more than sixty years. Before 1930, the development was slow. Mainly used for rail traffic detection of key parts. The original method was the original “white method”. During the Second World War, due to the development of the aviation industry, non-ferromagnetic materials (Al, Mg, Ti alloy) extensive use, the law of pervaporation has attracted widespread attention, prompting in 1942 with dye, surfactant fluorescent liquid. Subsequently, since the sensitivity of self-emulsifying fluorescent liquid has not met the requirements, the late fifties, there has been a high sensitivity of milk