一种提高硬铬镀层气密性的方法  

A Method of Increasing Airtight Function of Hard Chromium Plating

作　　者：汤智慧[1] 王长亮[1] 王力强[2] 戴述成[2] 岳文华[1] 陆峰[1] 

机构地区：[1]北京航空材料研究院,北京100095 [2]成都飞机工业(集团)有限责任公司,成都610092

出　　处：《装备环境工程》2012年第4期71-73,91,共4页Equipment Environmental Engineering

摘　　要：分析研究了硬铬镀层气密性不佳的原因。为提高电镀硬铬镀层的气密性,采用一种封孔技术对镀层进行后处理。研究表明,用518封孔剂处理后的硬铬镀层,气密性可满足"20 MPa,30 min气密性试验,铬层不出现渗漏气泡"的要求,封孔剂可进入到镀层20～30μm的深度,且耐液压油性能较好。The causes of poor airtight performance of hard chromium plaiting were analyzed. A sealing-treatment was employed in the post-treatment of hard chromium plaiting to improve the airtight function of the coating system. The results showed that the hard chromium plaiting passes 20 MPa/30 min airtight function testing with no leakage of gas after the post-treatment by 518 sealing reagent; the sealing reagent penetrates as deep as 20-30 μm and co-operates well with hydraulic fluid.

关 键 词：气密性 硬铬镀层 封孔处理 

分 类 号：TQ153.1[化学工程—电化学工业]