CN1004887B - 镀铝薄膜的常温快速阳极氧化方法 - Google Patents
镀铝薄膜的常温快速阳极氧化方法 Download PDFInfo
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- CN1004887B CN1004887B CN85109238.1A CN85109238A CN1004887B CN 1004887 B CN1004887 B CN 1004887B CN 85109238 A CN85109238 A CN 85109238A CN 1004887 B CN1004887 B CN 1004887B
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- aluminum
- anodic oxidation
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000003647 oxidation Effects 0.000 title claims abstract description 15
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000007747 plating Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 7
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 7
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000004411 aluminium Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 4
- YCPXWRQRBFJBPZ-UHFFFAOYSA-N 5-sulfosalicylic acid Chemical compound OC(=O)C1=CC(S(O)(=O)=O)=CC=C1O YCPXWRQRBFJBPZ-UHFFFAOYSA-N 0.000 claims description 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 2
- 239000011104 metalized film Substances 0.000 claims description 2
- 125000000896 monocarboxylic acid group Chemical group 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 229940095064 tartrate Drugs 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims 3
- 239000008151 electrolyte solution Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 7
- 239000010410 layer Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract description 2
- 239000011241 protective layer Substances 0.000 abstract description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 229910020489 SiO3 Inorganic materials 0.000 abstract 1
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 239000010408 film Substances 0.000 description 8
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 238000007743 anodising Methods 0.000 description 3
- 238000000637 aluminium metallisation Methods 0.000 description 1
- 238000005269 aluminizing Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
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- Electroplating Methods And Accessories (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
本发明提供一种镀铝膜层的阳极氧化技术,它可为镀铝镜面提供一种有效的保护层。本技术的实质是对非金属(尤其适用于玻璃、陶瓷)基底材料镀铝薄膜采用硫酸及Na2SiO3(水玻璃)等其它添加组分为处理溶液,在常温下通以一定电流、电压进行快速阳极氧化,然后用本发明提供的三种方法之一进行封闭处理,从而生成一种耐摩、耐蚀、耐候,表面可见光反射高(85%左右)的镜面绝缘氧化膜层。本技术工艺简单,成本低廉,生产效率高。
Description
本发明涉及铝的常温快速阳极氧化方法。
通常铝的阳极氧化是在铝材上进行的,这种方法一般时间长,耗能多。若要获得较高反射率的表面,还需进行化学抛光或电化学抛光,因而工艺较复杂,成本也高。
本发明提供一种镀铝膜层的阳极氧化新技术,本技术的实施不但为镀铝膜层提供一种有效的保护层,而且还可扩大阳极氧化技术的应用范围。
本发明的特征在于它是在非金属(尤其适用于玻璃、陶瓷)基底材料上的镀铝镜面经阳极氧化处理生成一层氧化铝钝面薄膜。其工艺过程和操作条件如下:
1.制备镀铝膜层
用真空镀膜机在光滑的非金属基体材料表面上蒸镀一层清洁光亮的铝膜。
2.镀铝膜层的清洗
制备好的铝膜,一般不用清洗,若表面有指纹、油污、汗渍等,可用1%的草酸溶液清洗。清洗后晾干备用。
3.阳极氧化处理
阴极采用铅板,阳极为在非金属基底材料上蒸镀铝膜的被处理件。被处理件通过平整光洁的铝板与夹具相接。与被处理件相接的铝板应与溶液相接。氧化处理的条件如下:
电解液成分:
H2SO4(95%以上) 20~100ml/l(水)
Na2SiO3(水玻璃) 20~100g/l(水)
C4H6O6(酒石酸) 3~20g/l(水)
(HO)C6H3(COOH)SO3H·2H2O(磺基水杨酸) 3~20g/l(水)
溶剂采用蒸馏水或去离子水。
操作条件:通以直流电,电流密度1.5~3.5A/dm2,槽电压15~30V,时间2~6分钟。电流应逐渐到达额定值。
4.封闭处理
阳极氧化处理后的工件,用水冲洗后,除去表面的残留水,进行封闭处理。
封闭处理按以下方法之一进行:
(1)封闭液配比为:
Na2SiO3(水玻璃) 30~100g/l(水)
K2Cr4O7 10~50g/l(水)
溶液温度为85~95℃,封闭处理时间5~10分钟,
(2)封闭液为
Na2SiO3(水玻璃) 50~100g/l(水)
溶液温度为75~85℃,通以直流电,电流密度控制在0.8~2.0A/dm2,电压控制在20~50V,封闭处理时间1~3分钟。
(3)封闭液为
KCr2O4 5~15g/l(水)
溶液温度为75~85℃,封闭处理时间10~25分钟。
5.成品清洗及干燥
封闭处理后的零件,用水清洗,然后自然晾干。
本发明提供的铝膜阳极氧化技术,可以在铝膜表面生成一种耐摩、耐蚀、耐候的电绝缘氧化膜层,并且这种氧化膜层表面能保持较高的可见光反射率(85%左右)。采用本技术制成的高稳定性的镜面材料,可用作太阳能聚光器的反射材料等。同时,本技术具有生产工艺简单,耗能较少,成本低廉,生产效率高等特点。
Claims (19)
1、一种在非金属基底材料上镀铝薄膜镜面的常温快速阳极氧化方法,其中包括制备镀铝膜层、镀铝膜层的清洗、阳极氧化处理、封闭处理、成品清洗及干燥,其特征在于,
A.阳极氧化处理在下列条件下进行,
电解液组成
H2SO4(95%以上) 20~100ml/l(水)
Na2SiO3(水玻璃) 20~100g/l(水)
C4H6O6(酒石酸) 3~20g/l(水)
(HO)C6H3(COOH)SO3H·2H2O(磺基水杨酸) 3~20g/l(水)
直流电电流密度1.5~3.5A/dm2,槽电压15~30V,氧化处理时间2~6分钟,
B.封闭处理按以下方法之一进行,
(1)封闭液为
Na2SiO3(水玻璃) 30~100g/l(水)
K2Cr4O7 30~50g/l(水)
溶液温度85~95℃,封闭处理时间5~10分钟,
(2)封闭液为
Na2SiO3(水玻璃) 50~100g/l(水)
溶液温度为75~85℃,通以直流电,电流密度控制在0.8~2.0A/dm2,电压控制在20~50V,封闭处理时间1~3分钟,
(3)封闭液为
KCr2O4 5~15g/l(水)
溶液温度为75~85℃,封闭处理时间10~25分钟。
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CN85109238.1A CN1004887B (zh) | 1985-12-16 | 1985-12-16 | 镀铝薄膜的常温快速阳极氧化方法 |
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CN85109238.1A CN1004887B (zh) | 1985-12-16 | 1985-12-16 | 镀铝薄膜的常温快速阳极氧化方法 |
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CN85109238A CN85109238A (zh) | 1986-09-03 |
CN1004887B true CN1004887B (zh) | 1989-07-26 |
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CN85109238.1A Expired CN1004887B (zh) | 1985-12-16 | 1985-12-16 | 镀铝薄膜的常温快速阳极氧化方法 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1065270C (zh) * | 1995-04-26 | 2001-05-02 | 陕西省商南县酒厂 | 茶酒及其制备方法 |
EP1233084A3 (en) * | 2001-02-20 | 2004-03-31 | Alenia Aeronautica S.P.A. | "Anodizing process, with low environmental impact, for a workpiece of aluminium or aluminium alloys" |
CN109097738A (zh) * | 2018-08-13 | 2018-12-28 | 长沙中海瑞超硬材料技术有限公司 | 一种陶瓷镜子及制作方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4894126A (en) * | 1988-01-15 | 1990-01-16 | Mahmoud Issa S | Anodic coatings on aluminum for circuit packaging |
CN102062479B (zh) * | 2009-11-17 | 2014-04-09 | 皇明太阳能股份有限公司 | 一种基于提前量设计的复合抛物面的高温聚热器 |
CN103668381B (zh) * | 2012-09-04 | 2016-03-09 | 中国科学院宁波材料技术与工程研究所 | 一种绝缘基片上原位多孔氧化铝膜的制备方法 |
CN103668388B (zh) * | 2013-12-27 | 2016-04-06 | 浙江苏泊尔股份有限公司 | 一种耐碱性封闭液和硬质阳极氧化膜的封闭方法 |
-
1985
- 1985-12-16 CN CN85109238.1A patent/CN1004887B/zh not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1065270C (zh) * | 1995-04-26 | 2001-05-02 | 陕西省商南县酒厂 | 茶酒及其制备方法 |
EP1233084A3 (en) * | 2001-02-20 | 2004-03-31 | Alenia Aeronautica S.P.A. | "Anodizing process, with low environmental impact, for a workpiece of aluminium or aluminium alloys" |
CN109097738A (zh) * | 2018-08-13 | 2018-12-28 | 长沙中海瑞超硬材料技术有限公司 | 一种陶瓷镜子及制作方法 |
CN109097738B (zh) * | 2018-08-13 | 2020-12-18 | 长沙中海瑞超硬材料技术有限公司 | 一种陶瓷镜子及制作方法 |
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CN85109238A (zh) | 1986-09-03 |
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