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

Pending Publication Date: 2020-10-09
KONFOONG MATERIALS INTERNATIONAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art test method, the corrosion time of high-purity aluminum alloy is long (15h), the sampling period is long, and the efficiency is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

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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Abstract

The invention discloses a test method of a high-purity aluminum alloy. The test method of the high-purity aluminum alloy comprises the following steps: 1) cutting a high-purity aluminum alloy sample into pieces, and carrying out impurity removal pretreatment; 2) weighing the pretreated high-purity aluminum alloy sample, adding a corrosive liquid for corrosion, standing, and adding water for dilution to form a mixed sample solution; 3) weighing the mixed sample solution, adding water to dilute the mixed sample solution, detecting the granularity of the sample solution through a liquid particlecounter for at least three times, and taking an average value S1; and 4) adding water into hydrochloric acid to form a hydrochloric acid solution with the same proportion as the mixed sample solutionin the step (3), taking the hydrochloric acid solution, adding water to dilute, detecting through a liquid particle counter, detecting for at least three times, taking an average value S2, and calculating the granularity of the sample. According to the test method of the high-purity aluminum alloy, the corrosion time of a high-purity aluminum alloy sample is shortened, the detection efficiency isimproved, the possibility that sample liquid is polluted is reduced, and data are more stable.

Description

technical field [0001] The invention relates to the technical field of alloy sample preparation, and relates to a test method for high-purity aluminum alloys, in particular to an LPC test method for high-purity aluminum alloys. Background technique [0002] Liquid Particle Counter (LPC) is a device for detecting the number and size distribution of suspended particles in a liquid, and is a leader in quality control and research applications in the field of particle counting. Disclosed as CN104005078A is a kind of electroplating device for electroplating metal on semiconductor wafers, it can include electroplating tank, be connected to the electrolyte circulation system that electrolyte solution is used for circulating in described tank, is used in first and second sampling ports for taking first and second samples of electrolyte at first and second locations in the device, and connected to the first and second sampling ports for measuring the One or more liquid particle coun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/02G01N1/28G01N1/32G01N1/34G01N1/44
CPCG01N15/02G01N1/286G01N1/32G01N1/34G01N1/44G01N2001/2873
Inventor 姚力军边逸军潘杰王学泽张如怡
Owner KONFOONG MATERIALS INTERNATIONAL CO LTD
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