CN104655611A - Method for continuously testing element distribution in aluminum alloy plate - Google Patents
Method for continuously testing element distribution in aluminum alloy plate Download PDFInfo
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- CN104655611A CN104655611A CN201510026323.2A CN201510026323A CN104655611A CN 104655611 A CN104655611 A CN 104655611A CN 201510026323 A CN201510026323 A CN 201510026323A CN 104655611 A CN104655611 A CN 104655611A
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Abstract
The invention relates to a method for continuously testing the element distribution in an aluminum alloy plate. The method comprises the following steps of cutting a sample from a to-be-tested plate, wherein the sample has the diameter of 10-20mm and the thickness equal to that of the to-be-tested plate; mixing a strong acid solution with the concentration of 20-50% and mercuric chloride with the concentration of 0.3-1% at the volume ratio of 1 to (0.003-0.01), so as to obtain a solution for testing; weighing a to-be-tested sample by an analytical balance, namely, tying one end of the sample by hair, suspending the sample to the analytical balance, immersing the sample with the thickness of delta H into the solution, after the sample with the thickness of delta H immersed into the solution is dissolved completely, measuring the concentrations of the elements in the solution for testing in a breaker by utilizing an inductive coupling plasma emission spectrograph, and repeating the steps until the sample is dissolved completely. The method for continuously testing the element distribution in the aluminum alloy plate provides effective quantitative data for the improvement of metallurgy and thermal treatment technologies, and has a reference value for the improvement of the technologies.
Description
Technical field
The present invention relates to the method for Elemental redistribution in a kind of follow-on test aluminum alloy plate materials.
Background technology
Elemental redistribution in sheet alloy is in fact uneven.Particularly under as-cast condition, because the proportion of often kind of element is different, gravity segregation can be caused.In addition, the precedence of alloy graining is different, and Elemental redistribution also can be caused uneven.Even Homogenization Treatments, be also difficult to the element in sheet material is uniformly distributed.Thus, heterogeneity is ubiquitous problem in sheet material.And be exactly exactly the performance that this unevenness can badly influence the many aspects such as mechanics, physics and chemistry of sheet metal.In most cases, people often require that the Elemental redistribution in sheet material is more even.This just needs the distribution situation of the element understood in sheet material, for smelting and heat treatment technology improvement provide effective quantitative data, but will know that the distribution situation of element in sheet material is more difficult more exactly.
Metaloscope and the distribution of scanning electron microscope energy disperse spectroscopy to element is utilized to analyze (Li Yusheng at present, Zhai Hu, the horse bezoar people, Deng. White Punctate Segregation in High Intensity ZL 205 A Alloy Large-Scale Casting research [J]. casting, 2007, 56 (2): 185-187.), metaloscope is utilized to carry out metallographic structure analysis, although microstructure segregation can be determined whether there is intuitively, can analyze qualitatively the distribution of element, but quantitatively cannot determine the distribution situation of element, and scanning electron microscope energy disperse spectroscopy can carry out qualitative and quantitative analysis to the distribution situation of element, but when alloying element content is very little, scanning electron microscope energy disperse spectroscopy cannot measure or measured deviation larger, therefore all effective quantitative data can not be provided for smelting and Technology for Heating Processing.
In addition, although propose a kind of method (Zhu Yuanzhi, Zhao Chaoqi of testing element in aluminium alloy, CN103335999A), but be difficult to obtain continuously the concentration of solute atoms in the alloy of different parts, the present invention is intended to overcome these features, can obtain the solute atoms concentration of a certain height and position continuously and in real time.
Summary of the invention
The object of this invention is to provide the method for Elemental redistribution in a kind of follow-on test aluminum alloy plate materials, incomplete to overcome discontinuous method of testing information in the past, metaloscope can only be analyzed qualitatively to the distribution of element, but quantitatively cannot determine the shortcoming of the distribution situation of element.
The object of the invention is to be achieved through the following technical solutions:
A method for Elemental redistribution in follow-on test aluminum alloy plate materials, comprises the following steps:
Step one: intercepting diameter in sheet material to be tested is the sample that 10 ~ 20mm is identical with sheet material with thickness, obtained test sample.
Step 2: be 1 by volume: (0.003 ~ 0.01) concentration is respectively the strong acid solution of 20 ~ 50% and the mercuric chloride of 0.3 ~ 1% mixes in glass container, obtain test solution.
Step 3: the weight of analytical balance sample to be measured, sample one end is hitched again with hairline, and be suspended on analytical balance, thickness sample being immersed Delta H dissolves in solution, after the sample immersing the Delta H thickness in liquid dissolves completely, with inductive coupling plasma emission spectrograph, record the concentration of each element in test solution in beaker;
Step 4: repeat step 3, then thickness sample being stretched in solution Delta H dissolves, and with inductive coupling plasma emission spectrograph, record the concentration of each element in test solution in beaker, until sample dissolves completely.
Further, described in enter Delta H in liquid the degree of depth be 0.001mm ~ 0.5H, wherein H is the thickness of sample.
Beneficial effect of the present invention is: the method that can provide Elemental redistribution in a kind of follow-on test aluminum alloy plate materials, overcome metaloscope to analyze qualitatively the distribution of element, but quantitatively cannot determine the shortcoming of the distribution situation of element, overcome the feature that discontinuous method of testing information is incomplete in the past, for smelting and heat treatment technology improvement provide effective quantitative data, more there is reference value to the improvement of technique.
Accompanying drawing explanation
With reference to the accompanying drawings the present invention is described in further detail below.
Fig. 1 is the distribution situation of the Fe element testing a kind of cast-rolling aluminum with the present invention;
Fig. 2 is the distribution situation of the Si element with cast-rolling aluminum described in test pattern 1 of the present invention;
Fig. 3 is the distribution situation of the Fe element testing a kind of 480 degrees Celsius of annealing 1h cast-rolling aluminums with the present invention.
Embodiment
Embodiment 1
A method for Elemental redistribution in follow-on test aluminum alloy plate materials, the tested object of the present embodiment is casting-rolling aluminum alloy plate blank material, and thickness is 7mm, and object is the content distribution of test Si, Fe element in cast-rolling aluminum.Concrete steps are:
Step one, in sheet material to be tested, intercept diameter be the sample that 10 ~ 20mm is identical with slab with thickness, obtained test sample.
Step 2, be 1 by volume again: (0.003 ~ 0.01) by concentration be 35% hydrochloric acid solution and 0.3 ~ 1% mercuric chloride mix in glass container, obtain test solution.
The weight of step 3, analytical balance sample to be measured, then hitch sample one end with hairline, and be suspended on analytical balance, and make sample immerse the thickness of 0.3mm in solution.At any time can test out part leaching example weight in a liquid.After the sample immersing the 0.3mm in liquid dissolves completely, then sample is stretched in solution the thickness of 0.3mm, and so forth, until sample dissolves completely.Meanwhile, after often having dissolved the sample of a 0.3mm thickness, with inductive coupling plasma emission spectrograph, record the concentration of each element in test solution in beaker.The results are shown in Figure 1 and Fig. 2.Due to, each dissolve after without the need to sample is made beaker, according to integral principle, theoretically, the method can the solute atoms content distribution in follow-on test sheet metal thickness direction.As long as record adjacent twice weight and concentration, the solute atoms mean concentration drawing a certain thickness place in sheet material just can be calculated.
Embodiment 2
A method for Elemental redistribution in follow-on test aluminum alloy plate materials, the tested object of the present embodiment is 480 degrees Celsius of annealing 1h casting-rolling aluminum alloy plate blank materials, and thickness is 7mm, and object is the content distribution of test Fe element in cast-rolling aluminum.Concrete steps are:
Step one, in sheet material to be tested, intercept diameter be the sample that 10 ~ 20mm is identical with slab with thickness, obtained test sample.
Step 2, be 1 by volume again: concentration is that the hydrochloric acid of 20% and the salpeter solution of 30% and 0.3 ~ 1% mercuric chloride mix in glass container by (0.003 ~ 0.01), obtains test solution.
The weight of step 3, analytical balance sample to be measured, then hitch sample one end with hairline, and be suspended on analytical balance, and make sample immerse the thickness of 0.1mm in solution.At any time can test out part leaching example weight in a liquid.After the sample immersing the 0.1mm in liquid dissolves completely, then sample is stretched in solution the thickness of 0.1mm, and so forth, until sample dissolves completely.Meanwhile, after often having dissolved the sample of a 0.1mm thickness, with inductive coupling plasma emission spectrograph, record the concentration of each element in test solution in beaker.The results are shown in Figure 3.Due to, each dissolve after without the need to sample is made beaker, according to integral principle, theoretically, the method can the solute atoms content distribution in follow-on test sheet metal thickness direction.As long as record adjacent twice weight and concentration, the solute atoms mean concentration drawing a certain thickness place in sheet material just can be calculated.
The present invention is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; no matter but any change is done in its shape or structure; every have identical with the application or akin technical scheme, all drops within protection scope of the present invention.
Claims (2)
1. the method for Elemental redistribution in follow-on test aluminum alloy plate materials, is characterized in that, comprise the following steps:
Step one: intercepting diameter in sheet material to be tested is the sample that 10 ~ 20mm is identical with sheet material with thickness, obtained test sample.
Step 2: be 1 by volume: (0.003 ~ 0.01) concentration is respectively the strong acid solution of 20 ~ 50% and the mercuric chloride of 0.3 ~ 1% mixes in glass container, obtain test solution.
Step 3: the weight of analytical balance sample to be measured, sample one end is hitched again with hairline, and be suspended on analytical balance, thickness sample being immersed Delta H dissolves in solution, after the sample immersing the Delta H thickness in liquid dissolves completely, with inductive coupling plasma emission spectrograph, record the concentration of each element in test solution in beaker;
Step 4: repeat step 3, then thickness sample being stretched in solution Delta H dissolves, and with inductive coupling plasma emission spectrograph, record the concentration of each element in test solution in beaker, until sample dissolves completely.
2. the as described in claim 1 method of Elemental redistribution in follow-on test aluminum alloy plate materials, is characterized in that, described in enter Delta H in liquid the degree of depth be 0.001mm ~ 0.5H, wherein H is the thickness of sample.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153603A (en) * | 2016-06-29 | 2016-11-23 | 内蒙古包钢钢联股份有限公司 | Measure the method for copper ferrum magnesium nickel manganese in Cast aluminium alloy gold simultaneously |
| CN106814126A (en) * | 2017-03-27 | 2017-06-09 | 山东钢铁集团日照有限公司 | A kind of method of testing of galvanizing layer weight and wherein trace element distribution |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS59210349A (en) * | 1983-05-16 | 1984-11-29 | Nippon Steel Corp | Analytical method and apparatus of molten metal by plasma emission spectrochemical analysis method for long-distance carriage of fine particle |
| JP2012027006A (en) * | 2010-06-25 | 2012-02-09 | Seiko Instruments Inc | Method for analyzing concentration of heavy metal ion or rare-earth metal ion |
| CN103335999A (en) * | 2013-06-27 | 2013-10-02 | 武汉科技大学 | Method for testing element distribution in alloy board |
| CN103901019A (en) * | 2014-03-26 | 2014-07-02 | 昆山洛丹伦生物科技有限公司 | Method for detecting content of heavy metal elements in metal or alloy material |
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2015
- 2015-01-20 CN CN201510026323.2A patent/CN104655611A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59210349A (en) * | 1983-05-16 | 1984-11-29 | Nippon Steel Corp | Analytical method and apparatus of molten metal by plasma emission spectrochemical analysis method for long-distance carriage of fine particle |
| JP2012027006A (en) * | 2010-06-25 | 2012-02-09 | Seiko Instruments Inc | Method for analyzing concentration of heavy metal ion or rare-earth metal ion |
| CN103335999A (en) * | 2013-06-27 | 2013-10-02 | 武汉科技大学 | Method for testing element distribution in alloy board |
| CN103901019A (en) * | 2014-03-26 | 2014-07-02 | 昆山洛丹伦生物科技有限公司 | Method for detecting content of heavy metal elements in metal or alloy material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153603A (en) * | 2016-06-29 | 2016-11-23 | 内蒙古包钢钢联股份有限公司 | Measure the method for copper ferrum magnesium nickel manganese in Cast aluminium alloy gold simultaneously |
| CN106814126A (en) * | 2017-03-27 | 2017-06-09 | 山东钢铁集团日照有限公司 | A kind of method of testing of galvanizing layer weight and wherein trace element distribution |
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Application publication date: 20150527 |