全先厚,郭瑞光,唐长斌,卢双堡.铝合金表面氟铝酸钠转化膜改性研究[J].表面技术,2013,42(3):59-62.
QUAN Xian-hou,GUO Rui-guang,TANG Chang-bin,LU Shuang-bao.Modification Research of Sodium Fluoroaluminate Conversion Coating on Aluminum Alloy[J].Surface Technology,2013,42(3):59-62 |
| 铝合金表面氟铝酸钠转化膜改性研究 |
| Modification Research of Sodium Fluoroaluminate Conversion Coating on Aluminum Alloy |
| 投稿时间：2012-12-29 修订日期：2013-02-02 |
| DOI： |
| 中文关键词: 6063 铝合金 氟铝酸钠转化膜 硅酸钠 耐蚀性 |
| 英文关键词:6063 aluminum alloy sodium fluoroaluminate conversion coating sodium silicate corrosion resistance |
| 基金项目:国家自然科学基金项目(20976143) ;教育部高等学校博士学科点专项科研基金(20096120110007) |
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| Author | Institution |
| QUAN Xian-hou | Key Laboratory of Northwest Water Resource, Environment and Ecology of Ministry of Education,Xi'an University of Architecture and Technology, Xi'an 710055 , China |
| GUO Rui-guang | Key Laboratory of Northwest Water Resource, Environment and Ecology of Ministry of Education,Xi'an University of Architecture and Technology, Xi'an 710055 , China |
| TANG Chang-bin | Key Laboratory of Northwest Water Resource, Environment and Ecology of Ministry of Education,Xi'an University of Architecture and Technology, Xi'an 710055 , China |
| LU Shuang-bao | Key Laboratory of Northwest Water Resource, Environment and Ecology of Ministry of Education,Xi'an University of Architecture and Technology, Xi'an 710055 , China |
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| 中文摘要: |
| 对 6063 铝合金的氟铝酸钠转化膜进行了改性,确定改性后的最佳工艺条件为:氟化钠 7 . 5 g / L,硅酸钠 5 g / L,六偏磷酸钠 3 g / L,偏钒酸铵 5 g / L,pH 值 3 . 0 ~ 4 . 0 ,常温,转化时间 20 min。 采用该工艺对铝合金进行转化处理,极化曲线测试结果表明, 铝合金表面的腐蚀电位正移了大约 70 mV, 腐蚀电流密度减小了大约90% ,耐蚀性显著提高,耐中性盐雾时间可达 264 h。 |
| 英文摘要: |
| Sodium fluoroaluminate conversion coating on the surface of 6063 aluminum alloy was modified. The optimal operation parameters were as follows: NaF 7 . 5 g / L, Na2SiO35 g / L, ( NaPO3)63 g / L, NH4VO35 g / L, pH 3 . 0 ~ 4 . 0 , ordinary temperature, 20 minutes. After conversion treatment by the process, the polarization curve measurement of the Al alloy showed that corrosion potential increased by about 70 mV and corrosion current density decreased by about 90 % , the corrosion resistance of the Al alloy was improved obviously, the neutral salty test time of Al specimen reached up to 264 hours. |
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