| WANG Jun-fang,LI Xi,YIN Zong-lian,YANG Xiao-ran.Application of Multi-factor Integrated Simulation of Marine Climate and Acceleration Test Technologies in Screening of Fastener Surface Treatment Technologies[J],45(2):175-180 |
| Application of Multi-factor Integrated Simulation of Marine Climate and Acceleration Test Technologies in Screening of Fastener Surface Treatment Technologies |
| Received:October 26, 2015 Revised:February 20, 2016 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2016.02.028 |
| KeyWord:multi-factor integrated simulation and acceleration test fastener surface treatment technologies marine climate screening |
| Author | Institution |
| WANG Jun-fang |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| LI Xi |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| YIN Zong-lian |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| YANG Xiao-ran |
Southwest Technology and Engineering Research Institute, Chongqing , China |
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| Abstract: |
| Objective To screen surface treatment technologies. Methods Six kinds of automobile fastener surface treatment technologies, trivalence chromium passivated zinc plating, hexad chromium passivated zinc plating, zinc-nickel alloys plating, chromium free zinc aluminum plating, LAFRE® , and Graphene coating, were tested using a new technology—multi-factor simulation of marine climate and acceleration test technology. Initial corrosion time, the time of 10% surface treatment area corrosion, and the time of 10% base metal area corrosion were measured with net eye inspection method. The protection ability of the above surface treatment technologies was evaluated with inspection data. The correctness of the screening result, the acceleration and relativity of the new technology were validated through comparison and analysis with outdoor exposure test results of Wanning exposure site. Results The initial corrosion time of the above surface treatment technologies was 24, 48, 48, 48, 144 and 72 hours respectively; the time of 10% surface treatment area corrosion was 48, 72, 72, 72, 216 and 144 hours respectively; the time of 10% base metal corrosion area was 216, 168, 432, 432, 216 and 216 hours respectively. The surface morphology changing process was similar with outdoor exposure and the average acceleration ratio was 21. Conclusion The rank by the protection ability of the above surface treatment technologies is LAFRE® technology, chromium free zinc aluminum plating, zinc-nickel alloy plating, Graphene coating, trivalence chromium passivated zinc plating, and hexad chromium passivated zinc plating. The screening is correct. The multi-factor integrated simulation of marine climate and acceleration test technologies have high acceleration and good correlativity with outdoor exposure. |
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