论文部分内容阅读
休斯公司为其安装在舰上而受到恶劣的海上高温和潮温环境影响的导弹系统提供防腐技术。用D6 AC钢制造的AMRAAM(先进的中程空空导弹),发动机壳体的应力腐蚀临界值是比较小的。为了高强度钢的防腐,考虑采取阻挡层和牺牲阴极保护涂层等一系列措施。为了发动机壳体的防腐,选择了三种牺牲阴极涂料并对其进行了全面评价。按照粘合能力以及与静电涂覆环氧树脂粉末、常规溶剂基环氧树脂和聚氨基甲酸脂涂料三种外涂层的适应性对它们进行了评价。在常规的和二氧化硫及盐雾环境中,对用喷涂和涂刷方法形成的防腐系统进行鉴定。最后得出阴极基涂料与环氧树脂或氯基甲酸乙酯外涂层的保护系统在海上恶劣环境中有极好的耐腐蚀性。
Hughes provides anti-corrosion technology for its missile systems that are installed on board ships and are subject to adverse sea temperatures and climatic conditions. AMRAAM (Advanced Medium Range Air-to-Air Missile) made from D6 AC steel has a relatively small stress corrosion threshold for the engine case. For high-strength steel corrosion, consider taking a barrier and sacrificial cathodic protection coating and a series of measures. For sacrificial engine housing, three sacrificial cathodic coatings were selected and thoroughly evaluated. They were evaluated in terms of adhesive power and suitability with three overcoat layers of electrostatically-coated epoxy powder, conventional solvent-based epoxy and polyurethane coatings. Preventive systems formed by spraying and brushing were identified in conventional and sulfur dioxide and salt spray environments. The result is a very good corrosion protection of the cathodic-based coating with an epoxy resin or an ethyl chloroformate coating in harsh environments at sea.