摘要
采用酚醛树脂、片状铝粉、铬黄、聚四氟乙烯等原料制备了一种专门针对钛合金紧固件用铝涂料,对涂膜厚度、耐腐蚀性能、干涉压入性能等进行了测试。结果表明:涂膜表面平整、光洁、呈金黄色,厚度均一,9～10μm,乙酸盐雾14 d或周期浸泡1 000 h后无明显腐蚀,干涉压入试验中涂层对紧固件保护性良好,未发生剥落及掉漆现象。采用空气喷涂,施工工艺简便易行,能够满足新一代飞机对钛合金紧固件不断发展的要求,已在国内某型飞机钛合金紧固件上应用,使用情况良好。
An Al -based coatings for titanium alloy fasteners was prpared by phenolic, resin, Al flake, chrome yellow and PTFE. The film thickness, anti -corrosion properties, interference property and some other properties of the coating were tested. The results showed that the film surface was even and smooth with a golden color. It can stand to acetic acid salt spray（ASS） test for 14 d or alternate immersion tests for 1 000 11 without obvious corrosion, with only 9 - 10 μm film thickness. The push - in test indicated that the fasteners were well protected by the coating. It can be easily painted on substances by air spray and meets the re- quirements of new generation of airplanes. The fasteners which were painted with AI coating has already been used on a certain type of air plane with good performance.
出处
《涂料工业》
CAS
CSCD
北大核心
2013年第5期17-22,共6页
Paint & Coatings Industry
关键词
钛合金紧固件
铝涂料
防腐蚀
titanium alloy fasteners
Al- based coatings
anti -corrosion
