Method for detecting oil content on foil surface of aluminum as well as aluminum alloy plate
A technology for detecting aluminum alloy strips and strips, which is applied in the field of chemical analysis, can solve the problems of large errors and failure to measure the oil content on the surface of aluminum and aluminum alloy strips and foils, etc., and achieves convenient operation, fast measurement speed, and simple measurement steps Effect
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[0027] Test Instruments and Reagents
[0028] 1. Infrared spectrometer 2. Two separate funnels (125, 250, 500ml) each
[0029] 3. 10ml pipette 4. One cuvette with lid (1cm, 4cm) each
[0030] 5. CCl 4 (for infrared) 6. 10 volumetric bottles (100ml, 50ml) each
[0031] 7. Scissors 8. Watch glass 9. 0.5NHCl solution 10. Absorbent cotton 11. Tweezers
[0032] Sampling: The sample taken can represent the actual situation of the oil content on the surface of aluminum and aluminum alloy strip foil, and can be cut along the width direction of the strip to 5cm* the entire width length, so that the surface of each sample is about 0.05m 2 . The specific area can be determined according to the oil content of the sample. Samples must not be touched directly by hand.
[0033] Sample making: Select 3 samples that can represent the oil content on the surface of the sample to do a parallel test, measure and record their surface area S respectively.
[0034] Observe the sample: if the s...
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