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陆卫中
,李
京
,张立新
,高
英
(中国科学院金属研究所国家金属腐蚀控制工程技术研究中心
,辽宁沈阳
110016)
摘要
:杭州湾跨海大桥大口径超长钢管桩
(
Φ
1
6 m,长
8
9 m)长期处在泥下区､海水区､浪溅区和大气区的腐蚀环境中
,其腐蚀环境和防护要求不同｡较为系统地介绍了应用于这
3个不同区域的
3种不同特点和性能的高性能改性熔融结合环氧粉末涂料性能和特点
,并在预制现场通过特殊的涂装工艺
,一次性将这
3种高性能粉末涂料涂敷在钢桩的不同防腐部位
,预制出了高性能的防护钢桩｡
关键词
:钢管桩
;防腐蚀
;熔结环氧粉末
;复合涂层
High Performance Multi-layer Coating on the Sea-crossing Bridge Piles
LU Wei-zhong, LI Jing, ZHANG Li-xin, GAO Ying
(National Engineering Research Center for Corrosion Control, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China)
Abstract: Sea-crossing bridge piles works in various marine environments, such as splash zone, subsea water and muddy seabed. Corrosion is often a principal determiner of the designed expectancy of the piles. The triple layer construction of coating has been recently developed for the sea-crossing Hangzhou Bay bridge piles. All three layers are simultaneously fusion bonded together to form unique construction of coating on steel pipe. The newly developed method is advantageous in many respects over the existing usual practices in corrosion protection of the bridge.
Key words: steel piles; anti-corrosion; fusion bonded epoxy; multi-layer coatings
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