CN104762630A - Surface treatment method for forming micro-porous structure on surface of aluminum alloy - Google Patents
Surface treatment method for forming micro-porous structure on surface of aluminum alloy Download PDFInfo
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- CN104762630A CN104762630A CN201410004457.XA CN201410004457A CN104762630A CN 104762630 A CN104762630 A CN 104762630A CN 201410004457 A CN201410004457 A CN 201410004457A CN 104762630 A CN104762630 A CN 104762630A
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Abstract
The invention relates to a surface treatment technology of a metal material, and concretely relates to a surface treatment method for forming a micro-porous structure on the surface of an aluminum alloy. The method comprises the following steps: 1, putting the aluminum alloy in a tank provided with a pickling solution, and carrying out pickling treatment; 2, flushing the pickled aluminum alloy in a first water pool and a second water pool; 3, carrying out dipping treatment on the flushed aluminum alloy in a tank provided with an amine series aqueous solution; and 4, flushing the dipped aluminum alloy in a third water pool. Pickling in the surface treatment method can effectively and rapidly remove oxides on the surface of the aluminum alloy to make the micro-porous structure formed on the surface of the aluminum alloy, so the surface has good roughness, and has good adhesion force with a polymer material; and the dipping in the amine series aqueous solution enhances the affinity of the aluminum alloy to the polymer material, and further increases the adhesion force between the aluminum alloy and the polymer material.
Description
Technical field
The present invention relates to a kind of process for treating surface of metallic substance, be specifically related to a kind of surface treatment method forming microvoid structure in aluminum alloy surface.
Background technology
In the aluminium alloy course of processing, in order to improve the binding property of aluminium alloy, being beneficial to the process that technique is follow-up, before use aluminium alloy, needing the oxide compound removing its surface.The mode of physics polishing that adopts removes the oxide compound of aluminum alloy surface and forms coarse surface more at present.
But the mode of physics polishing not only wastes time and energy, and the oxide compound that can not remove aluminum alloy surface effectively fast makes aluminum alloy surface form microvoid structure and have good roughness, therefore, develop a kind of fast and the surface treatment method with the chemistry of excellent etch effect is the developing direction of metal finishing etching technique from now on.
Summary of the invention
The object of the invention is the deficiency overcoming prior art existence, a kind of surface treatment method forming microvoid structure in aluminum alloy surface is provided, this surface treatment method can remove the oxide compound of aluminum alloy surface effectively fast, aluminum alloy surface can be made again to form microvoid structure thus there is good roughness, so good with polymeric material cohesive force.
Object of the present invention is achieved through the following technical solutions: a kind of surface treatment method forming microvoid structure in aluminum alloy surface, comprises the steps:
A: aluminium alloy is put into the groove that pickle solution is housed and carry out cleanup acid treatment;
B: by the aluminium alloy after steps A pickling through the first pond, second pond rinse;
C: the aluminium alloy after being rinsed by step B is put into the groove that the amine system aqueous solution is housed and carried out dip treating;
D: the aluminium alloy after being flooded by step C is put into the 3rd pond and rinsed.
Preferably, in described steps A, by weight percentage, pickle solution comprises hydrochloric acid 5 ~ 15%, Secondary ammonium phosphate 1 ~ 5%, acid fog inhibitor 0.01 ~ 0.03%.
More preferred, in described steps A, acid fog inhibitor is hexamethylenetetramine.
Preferably, in described steps A, pickling temperature is normal temperature, and pickling time is 5 ~ 15min.
Preferably, in described step B and step D, the pH in the first pond controls 2 ~ 6, and the pH in the second pond and the 3rd pond controls 5 ~ 7.
Preferably, in described step C, by weight percentage, the amine system aqueous solution comprises quadrol 2 ~ 6%, tolyl triazole 0.1 ~ 1%, aniline 0.5 ~ 1.0%.
More preferred, in described step C,
Preferably, in described step C, dipping temperature is 65 ~ 75 DEG C, and dipping time is 8 ~ 12min.
Compared with prior art, tool has the following advantages and beneficial effect in the present invention:
A kind of surface treatment method forming microvoid structure in aluminum alloy surface provided by the invention, comprise the steps such as pickling, washing, amine system aqueous impregnation, pickling in this surface treatment method can remove the oxide compound of aluminum alloy surface effectively fast, aluminum alloy surface is made to form microvoid structure and have good roughness, good with polymer materials cohesive force, amine system aqueous impregnation makes aluminium alloy enhance avidity to polymer materials, further increases the cohesive force of aluminium alloy and polymer materials.
Accompanying drawing explanation
Fig. 1 is the scanning electron microscope (SEM) photograph of the aluminium alloy that the embodiment of the present invention 1 obtains.
Fig. 2 is the scanning electron microscope (SEM) photograph of the aluminium alloy that the embodiment of the present invention 2 obtains.
Fig. 3 is the scanning electron microscope (SEM) photograph of the aluminium alloy that the embodiment of the present invention 3 obtains.
Fig. 4 is the scanning electron microscope (SEM) photograph of the aluminium alloy that the embodiment of the present invention 4 obtains.
Fig. 5 is the scanning electron microscope (SEM) photograph of the aluminium alloy that the embodiment of the present invention 5 obtains.
Fig. 6 is the scanning electron microscope (SEM) photograph of the aluminium alloy that the embodiment of the present invention 6 obtains.
embodiment
For the ease of the understanding of those skilled in the art, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1.
A kind of surface treatment method forming microvoid structure in aluminum alloy surface, comprise the steps: that aluminium alloy being put into the groove that pickle solution is housed carries out cleanup acid treatment, pickle solution comprises hydrochloric acid 50Kg, Secondary ammonium phosphate 10Kg, hexamethylenetetramine 0.1Kg, be diluted with water to 1000L, pickling 5min under normal temperature, wash away material oxidation skin and corrosion thing; Aluminium alloy after pickling is rinsed through the second pond that the first pond, pH that pH is 2 are 5, oxide skin and pickle solution are rinsed well; Aluminium alloy after flushing is put into the groove that the amine system aqueous solution is housed and carries out dip treating, the amine system aqueous solution comprises quadrol 20Kg, tolyl triazole 1Kg, and aniline 5Kg, is diluted with water to 1000L, floods 8min at 65 DEG C of temperature; Aluminium alloy after dipping is put into the 3rd pond flushing that pH is 5, the amine system aqueous solution of remnants is rinsed well.
Utilize scanning electron microscope observe the aluminium alloy that this enforcement is handled well and take pictures, can be observed the microvoid structure of aluminum alloy surface, see Fig. 1.
Embodiment 2.
A kind of surface treatment method forming microvoid structure in aluminum alloy surface, comprise the steps: that aluminium alloy being put into the groove that pickle solution is housed carries out cleanup acid treatment, pickle solution comprises hydrochloric acid 70Kg, Secondary ammonium phosphate 15Kg, hexamethylenetetramine 0.2Kg, be diluted with water to 1000L, pickling 7min under normal temperature, wash away material oxidation skin and corrosion thing; Aluminium alloy after pickling is rinsed through the second pond that the first pond, pH that pH is 4 are 6, oxide skin and pickle solution are rinsed well; Aluminium alloy after flushing is put into the groove that the amine system aqueous solution is housed and carries out dip treating, the amine system aqueous solution comprises quadrol 20Kg, tolyl triazole 10 Kg, and aniline 5Kg, is diluted with water to 1000L, floods 10min at 70 DEG C of temperature; Aluminium alloy after dipping is put into the 3rd pond flushing that pH is 6, the amine system aqueous solution of remnants is rinsed well.
Utilize scanning electron microscope observe the aluminium alloy that this enforcement is handled well and take pictures, can be observed the microvoid structure of aluminum alloy surface, see Fig. 2.
Embodiment 3.
A kind of surface treatment method forming microvoid structure in aluminum alloy surface, comprise the steps: that aluminium alloy being put into the groove that pickle solution is housed carries out cleanup acid treatment, pickle solution comprises hydrochloric acid 90Kg, Secondary ammonium phosphate 20Kg, hexamethylenetetramine 0.3Kg, be diluted with water to 1000L, pickling 9min under normal temperature, wash away material oxidation skin and corrosion thing; Aluminium alloy after pickling is rinsed through the second pond that the first pond, pH that pH is 6 are 7, oxide skin and pickle solution are rinsed well; Aluminium alloy after flushing is put into the groove that the amine system aqueous solution is housed and carries out dip treating, amine system aqueous solution quadrol 30Kg, tolyl triazole 4Kg, aniline 5Kg, is diluted with water to 1000L, floods 12min at 75 DEG C of temperature; Aluminium alloy after dipping is put into the 3rd pond flushing that pH is 7, the amine system aqueous solution of remnants is rinsed well.
Utilize scanning electron microscope observe the aluminium alloy that this enforcement is handled well and take pictures, can be observed the microvoid structure of aluminum alloy surface, see Fig. 3.
Embodiment 4.
A kind of surface treatment method forming microvoid structure in aluminum alloy surface, comprise the steps: that aluminium alloy being put into the groove that pickle solution is housed carries out cleanup acid treatment, pickle solution comprises hydrochloric acid 110Kg, Secondary ammonium phosphate 40Kg, hexamethylenetetramine 0.1Kg, be diluted with water to 1000L, pickling 11min under normal temperature, wash away material oxidation skin and corrosion thing; Aluminium alloy after pickling is rinsed through the second pond that the first pond, pH that pH is 2 are 5, oxide skin and pickle solution are rinsed well; Aluminium alloy after flushing is put into the groove that the amine system aqueous solution is housed and carries out dip treating, the amine system aqueous solution comprises quadrol 40Kg, tolyl triazole 5Kg, and aniline 7Kg, is diluted with water to 1000L, floods 8min at 75 DEG C of temperature; Aluminium alloy after dipping is put into the 3rd pond flushing that pH is 5, the amine system aqueous solution of remnants is rinsed well.
Utilize scanning electron microscope observe the aluminium alloy that this enforcement is handled well and take pictures, can be observed the microvoid structure of aluminum alloy surface, see Fig. 4.
Embodiment 5.
A kind of surface treatment method forming microvoid structure in aluminum alloy surface, comprise the steps: that aluminium alloy being put into the groove that pickle solution is housed carries out cleanup acid treatment, pickle solution comprises hydrochloric acid 130Kg, Secondary ammonium phosphate 45Kg, hexamethylenetetramine 0.2Kg, be diluted with water to 1000L, pickling 13min under normal temperature, wash away material oxidation skin and corrosion thing; Aluminium alloy after pickling is rinsed through the second pond that the first pond, pH that pH is 4 are 6, oxide skin and pickle solution are rinsed well; Aluminium alloy after flushing is put into the groove that the amine system aqueous solution is housed and carries out dip treating, the amine system aqueous solution comprises quadrol 50Kg, tolyl triazole 8 Kg, and aniline 8Kg, is diluted with water to 1000L, floods 10min at 68 DEG C of temperature; Aluminium alloy after dipping is put into the 3rd pond flushing that pH is 6, the amine system aqueous solution of remnants is rinsed well.
Utilize scanning electron microscope observe the aluminium alloy that this enforcement is handled well and take pictures, can be observed the microvoid structure of aluminum alloy surface, see Fig. 5.
Embodiment 6.
A kind of surface treatment method forming microvoid structure in aluminum alloy surface, comprise the steps: that aluminium alloy being put into the groove that pickle solution is housed carries out cleanup acid treatment, pickle solution comprises hydrochloric acid 150Kg, Secondary ammonium phosphate 50Kg, hexamethylenetetramine 0.3Kg, be diluted with water to 1000L, pickling 15min under normal temperature, wash away material oxidation skin and corrosion thing; Aluminium alloy after pickling is rinsed through the second pond that the first pond, pH that pH is 6 are 7, oxide skin and pickle solution are rinsed well; Aluminium alloy after flushing is put into the groove that the amine system aqueous solution is housed and carries out dip treating, the amine system aqueous solution comprises quadrol 60 Kg, tolyl triazole 10 Kg, and aniline 10Kg, is diluted with water to 1000L, floods 12min at 72 DEG C of temperature; Aluminium alloy after dipping is put into the 3rd pond flushing that pH is 7, the amine system aqueous solution of remnants is rinsed well.
Utilize scanning electron microscope observe the aluminium alloy that this enforcement is handled well and take pictures, can be observed the microvoid structure of aluminum alloy surface, see Fig. 6.
Above-described embodiment is the present invention's preferably embodiment, but embodiments of the present invention are not restricted to the described embodiments, and therefore according to the equivalent variations that the present patent application the scope of the claims is done, is included within protection scope of the present invention.
Claims (8)
1. form a surface treatment method for microvoid structure in aluminum alloy surface, it is characterized in that: comprise the steps:
A: aluminium alloy is put into the groove that pickle solution is housed and carry out cleanup acid treatment;
B: by the aluminium alloy after steps A pickling through the first pond, second pond rinse;
C: the aluminium alloy after being rinsed by step B is put into the groove that the amine system aqueous solution is housed and carried out dip treating;
D: the aluminium alloy after being flooded by step C is put into the 3rd pond and rinsed.
2. a kind of surface treatment method forming microvoid structure in aluminum alloy surface according to claim 1, it is characterized in that: in described steps A, by weight percentage, pickle solution comprises hydrochloric acid 5 ~ 15%, Secondary ammonium phosphate 1 ~ 5%, acid fog inhibitor 0.01 ~ 0.03%.
3. a kind of surface treatment method forming microvoid structure in aluminum alloy surface according to claim 2, it is characterized in that: in described steps A, acid fog inhibitor is hexamethylenetetramine.
4. a kind of surface treatment method forming microvoid structure in aluminum alloy surface according to claim 1, it is characterized in that: in described steps A, pickling temperature is normal temperature, and pickling time is 5 ~ 15min.
5. a kind of surface treatment method forming microvoid structure in aluminum alloy surface according to claim 1, it is characterized in that: in described step B and step D, the pH in the first pond controls 2 ~ 6, and the pH in the second pond and the 3rd pond controls 5 ~ 7.
6. a kind of surface treatment method forming microvoid structure in aluminum alloy surface according to claim 1, it is characterized in that: in described step C, by weight percentage, the amine system aqueous solution comprises quadrol 2 ~ 6%, tolyl triazole 0.1 ~ 1%, aniline 0.5 ~ 1.0%.
7. a kind of surface treatment method forming microvoid structure in aluminum alloy surface according to claim 1, it is characterized in that: in described step C, by weight percentage, the amine system aqueous solution comprises quadrol 2 ~ 4%, tolyl triazole 0.1 ~ 0.5%, aniline 0.5 ~ 0.8%.
8. a kind of surface treatment method forming microvoid structure in aluminum alloy surface according to claim 1, it is characterized in that: in described step C, dipping temperature is 65 ~ 75 DEG C, and dipping time is 8 ~ 12min.
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| CN201410004457.XA CN104762630A (en) | 2014-01-06 | 2014-01-06 | Surface treatment method for forming micro-porous structure on surface of aluminum alloy |
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| CN201410004457.XA CN104762630A (en) | 2014-01-06 | 2014-01-06 | Surface treatment method for forming micro-porous structure on surface of aluminum alloy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111844950A (en) * | 2020-07-30 | 2020-10-30 | 佛山金兰铝厂有限公司 | Aluminum alloy template for building and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111844950A (en) * | 2020-07-30 | 2020-10-30 | 佛山金兰铝厂有限公司 | Aluminum alloy template for building and preparation method thereof |
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