CN105088237A - Application method of novel 7-series aluminum alloy (Al-Zn-Mg-Cu) etchant solution - Google Patents
Application method of novel 7-series aluminum alloy (Al-Zn-Mg-Cu) etchant solution Download PDFInfo
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- CN105088237A CN105088237A CN201410211849.3A CN201410211849A CN105088237A CN 105088237 A CN105088237 A CN 105088237A CN 201410211849 A CN201410211849 A CN 201410211849A CN 105088237 A CN105088237 A CN 105088237A
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- etchant solution
- aluminium alloys
- line aluminium
- aluminum alloy
- series aluminum
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Abstract
The invention discloses an application method of a novel 7-series aluminum alloy (Al-Zn-Mg-Cu) etchant solution. The application method is characterized by including the steps that 1, a 7-series aluminum alloy (Al-Zn-Mg-Cu) sample is grinded and polished; 2, the surface of the 7-series aluminum alloy (Al-Zn-Mg-Cu) sample is washed out so that the etchant solution and the sample can react smoothly; 3, the etchant solution is dropwise sprayed on the surface of the 7-series aluminum alloy (Al-Zn-Mg-Cu) sample and wiped with a cotton ball continuously so that the surface of 7-series aluminum alloy (Al-Zn-Mg-Cu) can be evenly coated with the etchant solution, and the corrosion time ranges from 48 s to 57 s; 4, pure aluminum corroded by the etchant solution is cleaned through industrial alcohol; and 5, the 7-series aluminum alloy (Al-Zn-Mg-Cu) is blown and dried.
Description
Technical field
The present invention relates to a kind of using method of novel seven line aluminium alloys (Al-Zn-Mg-Cu) etchant solution.
Background technology
The metallographic structure of seven line aluminium alloys (Al-Zn-Mg-Cu) is difficult to corrosion, even if out it organizes also often show incomplete in corrosion, thus usually all adopts anode overlay film to add polarisation to observe its metallographic.But this observational technique is not only consuming time, and improves cost of manufacture.Therefore how making the etching pit of seven line aluminium alloys (Al-Zn-Mg-Cu) become simple and fast the same as aluminium alloy is the difficult problem waiting to solve.
Summary of the invention
The technical problem to be solved in the present invention: the using method providing a kind of novel seven line aluminium alloys (Al-Zn-Mg-Cu) etchant solution, can play effect of etchant solution, to greatest extent to overcome the deficiencies in the prior art.
Technical scheme of the present invention: a kind of using method of novel seven line aluminium alloys (Al-Zn-Mg-Cu) etchant solution, its step comprises:
Step one, by seven line aluminium alloys (Al-Zn-Mg-Cu) sample polishing also polishing;
Step 2, rinses well seven line aluminium alloys (Al-Zn-Mg-Cu) specimen surface, so as corrosive fluid and specimen reaction smooth and easy;
Step 3, drops in seven line aluminium alloys (Al-Zn-Mg-Cu) specimen surface by etchant solution and with cotton balls wiping repeatedly, etchant solution to be coated in uniformly seven line aluminium alloys (Al-Zn-Mg-Cu) surface, this etching time is 48s-57s;
Step 4, cleans the fine aluminium corroded through etchant solution with industrial spirit;
Step 5, dries up process to seven line aluminium alloys (Al-Zn-Mg-Cu).
Described corrosive fluid is mixing acid, mixing acid for adding hydrofluoric acid in distilled water, chromium trioxide, nitric acid makes, the component of its massfraction meter is: 2mlHF+14mlHNO
3+ 3gCrO
3+ 84ml distilled water.
Beneficial effect of the present invention: the using method of the etchant solution that the present invention adopts, can play effect of etchant solution to greatest extent, compared with common using method, corrosive effect is better, and is beneficial to the observation of metallographic structure.
Embodiment
A kind of using method of novel seven line aluminium alloys (Al-Zn-Mg-Cu) etchant solution, its step comprises:
Step one, by seven line aluminium alloys (Al-Zn-Mg-Cu) sample polishing also polishing;
Step 2, rinses well seven line aluminium alloys (Al-Zn-Mg-Cu) specimen surface, so as corrosive fluid and specimen reaction smooth and easy.
Step 3, etchant solution is dropped in seven line aluminium alloys (Al-Zn-Mg-Cu) specimen surface and with cotton balls wiping repeatedly, etchant solution to be coated in uniformly seven line aluminium alloys (Al-Zn-Mg-Cu) surface, this etching time is 48s-57s, described corrosive fluid is mixing acid, mixing acid for adding hydrofluoric acid in distilled water, chromium trioxide, nitric acid makes, the component of its massfraction meter is: 2mlHF+14mlHNO
3+ 3gCrO
3+ 84ml distilled water;
Step 4, cleans the fine aluminium corroded through etchant solution with industrial spirit;
Step 5, dries up process to seven line aluminium alloys (Al-Zn-Mg-Cu).
Claims (2)
1. a using method for novel seven line aluminium alloys (Al-Zn-Mg-Cu) etchant solution, is characterized in that: its step comprises:
Step one, by seven line aluminium alloys (Al-Zn-Mg-Cu) sample polishing also polishing;
Step 2, rinses well seven line aluminium alloys (Al-Zn-Mg-Cu) specimen surface, so as corrosive fluid and specimen reaction smooth and easy;
Step 3, drops in seven line aluminium alloys (Al-Zn-Mg-Cu) specimen surface by etchant solution and with cotton balls wiping repeatedly, etchant solution to be coated in uniformly seven line aluminium alloys (Al-Zn-Mg-Cu) surface, this etching time is 48s-57s;
Step 4, cleans the fine aluminium corroded through etchant solution with industrial spirit;
Step 5, dries up process to seven line aluminium alloys (Al-Zn-Mg-Cu).
2. the using method of one according to claim 1 novel seven line aluminium alloys (Al-Zn-Mg-Cu) etchant solution, it is characterized in that: described corrosive fluid is mixing acid, mixing acid for adding hydrofluoric acid in distilled water, chromium trioxide, nitric acid makes, the component of its massfraction meter is: 2mlHF+14mlHNO
3+ 3gCrO
3+ 84ml distilled water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410211849.3A CN105088237A (en) | 2014-05-20 | 2014-05-20 | Application method of novel 7-series aluminum alloy (Al-Zn-Mg-Cu) etchant solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410211849.3A CN105088237A (en) | 2014-05-20 | 2014-05-20 | Application method of novel 7-series aluminum alloy (Al-Zn-Mg-Cu) etchant solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105088237A true CN105088237A (en) | 2015-11-25 |
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| CN201410211849.3A Pending CN105088237A (en) | 2014-05-20 | 2014-05-20 | Application method of novel 7-series aluminum alloy (Al-Zn-Mg-Cu) etchant solution |
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| CN (1) | CN105088237A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741348A (en) * | 2017-12-01 | 2018-02-27 | 佛山市高明高盛铝业有限公司 | A kind of cast aluminium alloy gold preparation method of metallographic sample |
| CN107991302A (en) * | 2017-12-01 | 2018-05-04 | 佛山市高明高盛铝业有限公司 | A kind of Al-Cu line aluminium alloys metallographic test method |
| CN112697566A (en) * | 2020-12-18 | 2021-04-23 | 亚太轻合金(南通)科技有限公司 | 7075-T6 state aluminum alloy metallographic etchant and etching method |
| CN113358449A (en) * | 2021-05-21 | 2021-09-07 | 昆明理工大学 | 5 xxx-series Al-Mg alloy grain boundary corrosion solution and corrosion method |
| CN114941139A (en) * | 2022-05-11 | 2022-08-26 | 云南大学 | Metallographic corrosive agent for 7000 series aluminum alloy and corrosion method thereof |
-
2014
- 2014-05-20 CN CN201410211849.3A patent/CN105088237A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741348A (en) * | 2017-12-01 | 2018-02-27 | 佛山市高明高盛铝业有限公司 | A kind of cast aluminium alloy gold preparation method of metallographic sample |
| CN107991302A (en) * | 2017-12-01 | 2018-05-04 | 佛山市高明高盛铝业有限公司 | A kind of Al-Cu line aluminium alloys metallographic test method |
| CN112697566A (en) * | 2020-12-18 | 2021-04-23 | 亚太轻合金(南通)科技有限公司 | 7075-T6 state aluminum alloy metallographic etchant and etching method |
| CN113358449A (en) * | 2021-05-21 | 2021-09-07 | 昆明理工大学 | 5 xxx-series Al-Mg alloy grain boundary corrosion solution and corrosion method |
| CN113358449B (en) * | 2021-05-21 | 2023-09-26 | 昆明理工大学 | 5xxx series Al-Mg alloy grain boundary corrosive liquid and corrosion method |
| CN114941139A (en) * | 2022-05-11 | 2022-08-26 | 云南大学 | Metallographic corrosive agent for 7000 series aluminum alloy and corrosion method thereof |
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Application publication date: 20151125 |
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| WD01 | Invention patent application deemed withdrawn after publication |