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有沾污的金属片清洁是用HPLC级水与金属表面接触角的测定来进行,接触角用量角测量,更精确用动态接触角仪测量,所有测量中都用水10μL。样品从系统取出后立即进行接触角测量,用等离子放射浓度Dpl来研究接触角。Dpl定义为阴极功率W与阴极长度Lc和金属带传送速度vs乘积之比。Dpl=W vsLc(2)如此定义Dpl是便于放大空心阴极长度和提高基材的速度,在实验系统中速度不超过5 m/min,大型生产中金属带速度达到300 m/min。除上述接触角测量外,金属表面油的清除情
Contaminated metal plates are cleaned by measuring the contact angle of the HPLC-grade water with the metal surface. The contact angle is measured with a dynamic contact angle and more precisely 10 μL with all measurements. Contact angle measurements were taken immediately after the sample was removed from the system and the contact angle was investigated using the plasma radioactivity concentration Dpl. Dpl is defined as the ratio of the cathode power, W, to the product of the length of the cathode, Lc, and the transport speed of the metal strip. Dpl = W vsLc (2) Dpl is thus defined to facilitate the enlargement of the hollow cathode length and the increase of the substrate speed up to 5 m / min in the experimental system and up to 300 m / min in the mass production. In addition to the above-mentioned contact angle measurement, the metal surface oil clearance situation