Test method of a high-purity aluminum alloy
A testing method and aluminum alloy technology, which is applied in the preparation of test samples, measuring devices, sampling, etc., can solve the problems of low efficiency, long corrosion time of high-purity aluminum alloys, and long sampling cycle, and achieve the possibility of reducing pollution performance, shorten the corrosion time, and stabilize the data
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Embodiment 1
[0043] The testing method of the high-purity aluminum alloy of the present embodiment comprises the following steps:
[0044] 1) Cut the 5N high-purity aluminum alloy sample into pieces, take 10g of the sample, wash it with nitric acid and hydrofluoric acid in a mixed acid solution with the volume ratio of each component: nitric acid: hydrofluoric acid: water = 4:1:1, and pickle for 3 minutes , dried in the sun;
[0045] 2) Weigh 1.8g sample, add 30mL hydrochloric acid and 30mL pure water for corrosion, after standing for 5 hours, the solution is transparent and clear, add 40mL pure water, and finally form a mixed sample solution;
[0046] 3) Take 10mL mixed sample solution, add 90mL pure water, measure the particle size of the sample solution through a liquid particle counter, repeat more than three times in parallel, and take the average value S1;
[0047] 4) Add 70mL of pure water to 30mL of hydrochloric acid to form a hydrochloric acid solution in the same proportion as t...
Embodiment 2
[0049] The testing method of the high-purity aluminum alloy of the present embodiment comprises the following steps:
[0050] 1) Cut the 5N high-purity aluminum alloy sample into pieces, take 10g of the sample, wash it with nitric acid and hydrofluoric acid in a mixed acid solution with the volume ratio of each component: nitric acid: hydrofluoric acid: water = 4:1:1, and pickle for 3 minutes , dried in the sun;
[0051] 2) Weigh 1.9g sample, add 30mL hydrochloric acid and 30mL pure water for corrosion, after standing for 6 hours, the solution is transparent and clear, add 40mL pure water, and finally form a mixed sample solution;
[0052] 3) Take 10mL mixed sample solution, add 90mL pure water, measure the particle size of the sample solution through a liquid particle counter, repeat more than three times in parallel, and take the average value S1;
[0053] 4) Add 70mL of pure water to 30mL of hydrochloric acid to form a hydrochloric acid solution in the same proportion as t...
Embodiment 3
[0055] The testing method of the high-purity aluminum alloy of the present embodiment comprises the following steps:
[0056] 1) Cut the 5N high-purity aluminum alloy sample into pieces, take 10g sample, use nitric acid and hydrofluoric acid in the volume ratio of each component: nitric acid: hydrofluoric acid: water = 4:1:1, pickle for 3 minutes, dry under the lamp;
[0057] 2) Weigh 2g of the sample, add 30mL of hydrochloric acid and 30mL of pure water for corrosion, after standing for 6.5 hours, the solution is transparent and clear, add 40mL of pure water, and finally form a mixed sample solution;
[0058] 3) Take 10mL mixed sample solution, add 90mL pure water, measure the particle size of the sample solution through a liquid particle counter, repeat more than three times in parallel, and take the average value S1;
[0059] 4) Add 70mL of pure water to 30mL of hydrochloric acid to form a hydrochloric acid solution in the same proportion as the mixed sample solution, take...
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