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一、问题提出一般工厂和研究所对于管子的零件去油,系采用三氯乙烯、丙酮、航空汽油洗涤为主,一种材料或多种材料交叉使用及利用超声波清洗器多次清洗等为辅的方法。但往往在零件表面仍留有一薄层油膜,用肉眼观察几乎看不出,而零件并不很干净。一般情况下,零件表面不但有油污,甚至伴有轻微的氧化层。上述处理对其轻微的氧化层是不能去除的,只能求助于酸洗方法。但经过酸洗后的零件,其尺寸一般都有些变
First, the problem put forward General factory and Institute for the pipe parts to oil, the Department of Trichlorethylene, acetone, aviation gasoline washing mainly cross-use of a material or a variety of materials and the use of ultrasonic cleaning, such as multiple cleaning, supplemented Methods. But often there is still a thin layer of oil film on the surface of the part, with the naked eye almost can not see, and the parts are not very clean. Under normal circumstances, parts surface not only oil, even with a slight oxide layer. The above treatment for its slight oxide layer can not be removed, can only resort to pickling method. However, after pickling parts, the size is generally some change