Emulsifier Concentration and Emulsifying Time Influence on Hairline Clack Indication
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摘要: 后乳化渗透检验过程中，乳化剂浓度和乳化时间参数的选择直接影响渗透检测的灵敏度。以镀铬磨削件和超音速火焰喷涂零件为例，分析了乳化剂浓度和乳化时间对渗透显示的影响并进行了说明论证。试验表明，在进行后乳化荧光渗透检验的过程中，应严格控制乳化剂浓度和乳化时间。经多次试验，选取乳化剂浓度为15%，时间为10~15 s，能达到最佳的配比，使缺陷的显示最清晰，检测灵敏度达到最大。Abstract: During post emulsifying penetrant inspection，parameter option of emulsifier concentration and emulsifying time will directly impact on sensitivity level of penetrant detection. The article mainly takes an example of chromium plating and grinding parts and HVOF parts, analyzes emulsifier concentration and emulsifying time impact on penetrant indication and performs instructions and demonstrations. The experiment indicates that we shall strictly control emulsifier concentration and emulsifying time during post emulsifying fluorescent penetrant inspection. If we select emulsifier concentration 15%, emulsifying time 10~15 s after testing many times, it will reach optimum proportioning, make flaw indication clear. Detection sensitivity level will reach the largest.
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[1] 孙殿寿.渗透检测［M］.北京：机械工业出版社,2004.
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