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| RESEARCH ON ARC SPRAYED Al COATING FOR ANTI-CORROSION AND ANTI-SLIDING BOLTING SURFACE COATING OF RAILWAY STEEL BRIDGE |
| LIU Xian-jun，LI Dong-wen |
| Metal and Chemistry Institute，China Academy of Railway Sciences |
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Abstract Arc sprayed Al coating was applied as anti-corrosion and anti-silding coating for bolting surface of railway steel bridge- Attenuation test of anti-sliding coefficient，the porosity and the potentiostatic anodic polarization curves，and the salt mist of arc sprayed coatings have been tested. The results show that: the original anti-sliding coefficient of arc sprayed Al coating is Q 673 and the arc sprayed Al coating has excellent property of anti-attenuation，the spontaneous electrocal potential of Al is - 0. 915V in 3. 0% NaCl solution，the potentiostatic anodic polarization curves of Al go on gently and little inactivation appears on the curve of Al coating，the arc sprayed Al coating has low porosity and excellent property of anti-corrosion and it is a ideal coating for anti-corrosion and anti-slidi ng of railway steel bridge bolting surface.
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Received: 05 January 2000
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[1]高鹤江，等.铁路工务技术手册一桥涵[M].北京：中国铁道出版社,1991.
[2]铁路钢桥栓接面抗滑移系数试验方法[S].北京:铁道部 行业标准(TB2137- 90).
[3]易伦雄.铁路桥梁防腐蚀的沿革和现状[J].腐蚀与防护学报，1998(8).
[4]杜存山.铁路钢桥栓接面喷涂材料及工艺研究[R]. TY 字第1165号.北京：铁道部科学研究院，1998(6).
[5]刘宪军.铁路钢桥电弧喷铝涂层长效防腐蚀工艺和设备技术研究[R]. TY字第1253号.北京：铁道部科学研究 院,1998(11).
[6]刘宪军，等.铁路钢桥电弧喷Al长效防腐蚀技术研究 [J].铁道学报,1999, (4): 83- 86. |
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2000, Vol. 17 
