CN102199778A - Surface-adjusting processing solution for magnesium alloy products - Google Patents
Surface-adjusting processing solution for magnesium alloy products Download PDFInfo
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- CN102199778A CN102199778A CN 201010130484 CN201010130484A CN102199778A CN 102199778 A CN102199778 A CN 102199778A CN 201010130484 CN201010130484 CN 201010130484 CN 201010130484 A CN201010130484 A CN 201010130484A CN 102199778 A CN102199778 A CN 102199778A
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Abstract
A surface-adjusting processing solution for magnesium alloy products. The surface-adjusting processing solution utilizes water as a solvent and comprises: 30 to 80 g/L of a hydroxide, 5 to 10 g/L of potassium sodium tartrate, and 2 to 4 g/L of EDTA sodium salt. Through a complex usage of potassium sodium tartrate, EDTA sodium salt and the hydroxide in the surface-adjusting processing solution, depositions are not formed in a liquid from a reactive tank and a defect of yellow surfaces of magnesium alloy products is overcome.
Description
[technical field]
The present invention relates to a kind of treatment soln, particularly a kind of magnesium alloy table that is used for is mediated the table of science and engineering skill and is mediated reason solution.
[background technology]
Magnesium alloy is because light than engineering plastics, and along with consumption electronic products lightweight and slimming gradually, it becomes main basic material in consumption electronic products such as notebook computer, mobile phone, PDA and the projector gradually, become the up-and-coming youngster of electronics and IT products material, Application of Magnesium scope thereby expansion rapidly.In industrial production, also more and more important to the surface treatment of magnesium alloy, its surface treatment mainly is to improve the outward appearance of product and improves wear-resisting and antiseptic property etc.
In the Mg alloy surface treating processes, magnesium alloy changed into to pass through degreasing, acid-wash activation and table before handling and mediate steps such as reason, wherein the table purpose of mediating reason is: Mg alloy surface is carried out weak erosion action, make the Mg alloy surface homogenization, help changing into the carrying out and the epithelium homogeneity of reaction.
At present, in production technique, it is potassium hydroxide that the magnesium alloy table is mediated the normally used table adjustment of reason, but be to use the chemical agent of this one matter, can produce precipitation in the long-time use, and long slightly if table is mediated time of reason, can cause the Mg alloy surface jaundice, influence the outward appearance and the yield of product.
[summary of the invention]
In view of this, the object of the present invention is to provide a kind of magnesium alloy table that in the long time treatment process, can not produce precipitation and product surface is turned to be yellow to mediate reason solution.
For achieving the above object, a kind of magnesium alloy table provided by the invention is mediated reason solution, is solvent with water, comprises the following component of calculating by concentration:
(a) oxyhydroxide 30-80g/L;
(b) Seignette salt 5-10g/L;
(c) disodium edta 2-4g/L.
Magnesium alloy table provided by the invention is mediated reason solution, with Seignette salt and EDTA sodium salt and the composite use of oxyhydroxide, has given full play to the effect of various materials, thereby has avoided sedimentary generation in the tank liquor, and overcome the defective of magnesium-alloy material surface jaundice.
[embodiment]
Below in conjunction with specific embodiment the present invention is described in further detail:
It is solvent with water that magnesium alloy table of the present invention is mediated reason solution, comprises the following component of calculating by concentration:
(a) oxyhydroxide 30-80g/L;
(b) Seignette salt 5-10g/L;
(c) ethylenediamine tetraacetic acid (EDTA) (EDTA) sodium salt 2-4g/L.
In this better embodiment, this oxyhydroxide is potassium hydroxide, is used for to Mg alloy surface refinement and brightens, and in other embodiments, this oxyhydroxide also can be sodium hydroxide.This Seignette salt and EDTA sodium salt are all as complexing agent, be used for the metal ions such as iron, copper of complexing Mg alloy surface, and generate water soluble complex, thereby avoid producing in the long-time use of solution precipitation, the EDTA sodium salt has anti-brown stain function simultaneously, can avoid the Mg alloy surface jaundice.
After magnesium alloy being carried out degreasing, acid-wash activation processing, place above-mentioned table to transfer solution to show to mediate reason in the magnesium alloy material, treatment temp is controlled between 60-70 ℃, and the treatment time got final product between 60 seconds-120 seconds.After table is mediated reason this magnesium alloy material is at least once washed, again this magnesium alloy material is changed into processing afterwards, gained magnesium alloy material can conform to quality requirements.Wherein, magnesium alloy being carried out skimming treatment is to remove the grease of Mg alloy surface with removing oil solution; It is oxide compound and the parting agent of removing Mg alloy surface with pickling agent that acid-wash activation is handled; It is that Mg alloy surface is carried out weak erosion action that table is mediated reason, makes the Mg alloy surface homogenization, helps changing into the carrying out and the epithelium homogeneity of reaction; Changing into processing is in order to form anticorrosive film at Mg alloy surface.Lifting specific embodiment below mediates reason solution to magnesium alloy table of the present invention and describes.
Embodiment 1
At first, the magnesium alloy material is being carried out after degreasing, acid-wash activation handle, this magnesium alloy material is being placed by the table of following concentration of component prescription mediate reason solution:
(a) potassium hydroxide 50g/L;
(b) Seignette salt 7g/L;
(c) EDTA sodium salt 3g/L;
Secondly, this magnesium alloy material is shown to mediate reason, treatment temp is at 68 degree, and the treatment time was at 100 seconds;
At last, above-mentioned table is mediated reason magnesium alloy material later change into processing, to generate anticorrosive film.
The magnesium alloy material that adopts above-mentioned table to transfer solution to show to mediate after the reason is tested, and test result can not have obvious corrosion by 12 hours neutral salt spray tests for this magnesium alloy material, and the surface does not have and obviously jaundice defective occurs.
Embodiment 2
At first, the magnesium alloy material is being carried out after degreasing, acid-wash activation handle, this magnesium alloy material is being placed by the table of following concentration of component prescription mediate reason solution:
(a) sodium hydroxide 70g/L;
(b) Seignette salt 9g/L;
(c) EDTA sodium salt 3g/L;
Secondly, this magnesium alloy material is shown to mediate reason, treatment temp is at 65 degree, and the treatment time was at 80 seconds;
At last, above-mentioned table is mediated reason magnesium alloy material later change into processing, to generate anticorrosive film.
The magnesium alloy material that adopts above-mentioned table to transfer solution to show to mediate after the reason is tested, and test result can not have obvious corrosion by 12 hours neutral salt spray tests for this magnesium alloy material, and the surface does not have and obviously jaundice defective occurs.
Magnesium alloy table provided by the invention is mediated reason solution, with Seignette salt and EDTA sodium salt and the composite use of oxyhydroxide, has given full play to the effect of various materials, thereby has avoided sedimentary generation in the tank liquor, and overcome the defective of magnesium-alloy material surface jaundice.
Claims (5)
1. a magnesium alloy table is mediated reason solution, is solvent with water, comprises the following component of calculating by concentration:
(a) oxyhydroxide 30-80g/L;
(b) Seignette salt 5-10g/L;
(c) disodium edta 2-4g/L.
2. magnesium alloy table as claimed in claim 1 is mediated reason solution, it is characterized in that: this oxyhydroxide is potassium hydroxide.
3. magnesium alloy table as claimed in claim 2 is mediated reason solution, it is characterized in that: with water is solvent, comprises the following component of calculating by concentration:
(a) potassium hydroxide 50g/L;
(b) Seignette salt 7g/L;
(c) disodium edta 3g/L.
4. magnesium alloy table as claimed in claim 1 is mediated reason solution, it is characterized in that: this oxyhydroxide is sodium hydroxide.
5. magnesium alloy table as claimed in claim 4 is mediated reason solution, it is characterized in that: with water is solvent, comprises following group that calculates by concentration:
(a) sodium hydroxide 70g/L;
(b) Seignette salt 9g/L;
(c) disodium edta 3g/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010130484 CN102199778A (en) | 2010-03-24 | 2010-03-24 | Surface-adjusting processing solution for magnesium alloy products |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010130484 CN102199778A (en) | 2010-03-24 | 2010-03-24 | Surface-adjusting processing solution for magnesium alloy products |
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| CN102199778A true CN102199778A (en) | 2011-09-28 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103173778A (en) * | 2011-12-21 | 2013-06-26 | 苏州汉扬精密电子有限公司 | Magnesium alloy pickling activator and magnesium alloy pickling method |
| CN104947126A (en) * | 2015-07-14 | 2015-09-30 | 山东省科学院新材料研究所 | Magnesium alloy cleaning agent |
| CN108560007A (en) * | 2018-04-20 | 2018-09-21 | 深圳市恒享表面处理技术有限公司 | A kind of Mg alloy surface bleaching agent and preparation method thereof |
| CN109609957A (en) * | 2019-01-11 | 2019-04-12 | 江门市瑞期精细化学工程有限公司 | A kind of magnesium alloy chemical milling agent and its pre-treating technology |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089227A (en) * | 2006-06-16 | 2007-12-19 | 汉达精密电子(昆山)有限公司 | Magnesium alloy surface non-chromium chemical solution and chemical process technology |
| CN101113519A (en) * | 2006-07-28 | 2008-01-30 | 佛山市顺德区汉达精密电子科技有限公司 | Magnesium alloy surface treatment technique |
| TW200927991A (en) * | 2007-11-01 | 2009-07-01 | Nihon Parkerizing | Method for making a surface adjusted aluminum casting |
-
2010
- 2010-03-24 CN CN 201010130484 patent/CN102199778A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089227A (en) * | 2006-06-16 | 2007-12-19 | 汉达精密电子(昆山)有限公司 | Magnesium alloy surface non-chromium chemical solution and chemical process technology |
| CN101113519A (en) * | 2006-07-28 | 2008-01-30 | 佛山市顺德区汉达精密电子科技有限公司 | Magnesium alloy surface treatment technique |
| TW200927991A (en) * | 2007-11-01 | 2009-07-01 | Nihon Parkerizing | Method for making a surface adjusted aluminum casting |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103173778A (en) * | 2011-12-21 | 2013-06-26 | 苏州汉扬精密电子有限公司 | Magnesium alloy pickling activator and magnesium alloy pickling method |
| CN104947126A (en) * | 2015-07-14 | 2015-09-30 | 山东省科学院新材料研究所 | Magnesium alloy cleaning agent |
| CN104947126B (en) * | 2015-07-14 | 2018-04-06 | 山东省科学院新材料研究所 | A kind of magnesium alloy cleaning agent |
| CN108560007A (en) * | 2018-04-20 | 2018-09-21 | 深圳市恒享表面处理技术有限公司 | A kind of Mg alloy surface bleaching agent and preparation method thereof |
| CN108560007B (en) * | 2018-04-20 | 2019-10-01 | 深圳市恒享表面处理技术有限公司 | A kind of Mg alloy surface bleaching agent and preparation method thereof |
| CN109609957A (en) * | 2019-01-11 | 2019-04-12 | 江门市瑞期精细化学工程有限公司 | A kind of magnesium alloy chemical milling agent and its pre-treating technology |
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Application publication date: 20110928 |