螺旋桨和船体间的电位测量及螺旋桨保护措施实例

• 作 者: 三浦富雄 杨汝钧
• 出 处: 国外舰船技术(材料类)
• 发表日期: 1984年07期
• 关键词: 电位测量 保护措施 牺牲阳极 桨叶 保护电流密度 阳极块 拖网渔船 进坞 空泡 腐蚀原因

一、前言关于螺旋桨及其轴套的腐蚀原因和保护措施,已从各方面作了研究,根据腐蚀的程度采取了切实的保护措施,故大体上得到了解决。本文仅就螺旋桨的腐蚀问题作一论述。一般情况下,在海水中铜系金属的腐蚀是很轻的。它在海水中难于腐蚀的原因是因为在金属表面生成氧化膜,然而下列因素会导致腐蚀。

I. Preface The reasons for the corrosion of propellers and their bushings and the protective measures have been studied in all aspects. Practical measures have been taken according to the degree of corrosion and are therefore largely resolved. This article only discusses the issue of the corrosion of the propeller. Under normal circumstances, copper metal corrosion in seawater is very light. The reason it is hard to corrode in seawater is because of the formation of an oxide film on the metal surface, however, the following factors can cause corrosion.