火箭贮箱机铣零件非阳极氧化表面涂漆可行性分析  

Feasibility analysis of painting on non-anodized surface of milled parts of rocket tank

作　　者：尚洪帅 刘凤财 李曼 韩磊 范全胜 索雁伟 SHANG Hongshuai;LIU Fengcai;LI Man;HAN Lei;FAN Quansheng;SUO Yanwei(Tianjin Long March Launch Vehicle Manufacturing Co.,Ltd.,Tianjin 300462,China;Capital Aerospace Machinery Co.,Ltd.,Beijing 100076,China)

机构地区：[1]天津航天长征火箭制造有限公司,天津300462 [2]首都航天机械有限公司,北京100076

出　　处：《电镀与涂饰》2022年第8期566-570,共5页Electroplating & Finishing

摘　　要：针对火箭贮箱机铣铝合金零件非阳极氧化表面光滑、粗糙度低而不满足涂漆要求的问题,通过分析机铣零件在碱腐蚀液中腐蚀不同时间后的表面状态及涂漆后漆层的附着力测试结果,提出了具有可行性的微腐蚀解决方案。经微腐蚀的铝合金零件上漆层附着力小于等于1级,满足航天型号产品的质量要求。The non-anodized surface of the milled aluminum alloy parts of rocket tank is smooth with low roughness,and does not meet the requirements of painting.A feasible micro-etching solution was developed to solve this problem by analyzing the surface state of the milled parts after being etched in alkali for different time and the adhesion test results of the coatings sprayed on the etched parts.The adhesion of coating on the micro-etched aluminum alloy part was at least 1 grade,meeting the quality requirements for aerospace products.

关 键 词：铝合金 阳极氧化 涂漆 腐蚀 粗糙度 附着力 

分 类 号：TQ639[化学工程—精细化工]