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发明公开
CN105986217A 输电线路杆塔长效防护涂层及其制备方法 无效 - 撤回

输电线路杆塔长效防护涂层及其制备方法
摘要：
本发明涉及一种输电线路杆塔长效防护涂层及其制备方法，属于输电线杆塔防护的技术领域。所述输电线路杆塔由中碳钢制成，所述中碳钢中碳的重量百分比为0.25～0.50wt％；所述杆塔表面喷涂形成有锌合金涂层、锌合金镀层上喷涂有环氧富锌封闭层。所述的锌合金涂层中含有0.15～0.25wt％的Al、0.20～0.25wt％的Si、0.20～0.25wt％的Mg，和余量的Zn。本发明所述的长效防护涂层不含铬酸盐组分，环保性能好；而且通过对锌合金涂料进行组分改进提高了其与中碳钢基材的耐蚀性。在封闭层中通过将锌粉与二氧化钛交联在一起不仅提供了良好的耐蚀性，而且还赋予涂层优异的耐候性。
摘要（英）：

The invention relates to a long-lasting protection coating for a transmission line pole tower and a preparation method thereof, and belongs to the technical field of transmission line pole tower protection. The transmission line pole tower is made of medium-carbon steel. The medium-carbon steel comprises 0.25 wt%-0.50 wt% of carbon. The surface of the transmission line pole tower is coated with a zinc alloy coating. The zinc alloy coating is coated with an epoxy zinc-rich sealing layer and comprises 0.15 wt%-0.25 wt% of Al, 0.20 wt%-0.25 wt% of Si, 0.20 wt%-0.25 wt% of Mg and the balance Zn. According to the long-lasting protection coating for the transmission line pole tower, chromate components are not included, and the environmental protection performance is good; in addition, component improvement is conducted on the zinc alloy coating, and the corrosion resistance of the zinc alloy coating and the corrosion resistance of a medium-carbon steel base material are improved; and in the sealing layer, zinc powder and titanium dioxide are cross-linked together, so that not only is the good corrosion resistance provided, but also the long-lasting protection coating is endowed with the excellent weather resistance.

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