VAMTOP套管接箍镀铜层变色原因分析  

Reason Analysis on Tarnishing of Copper Plate of VAMTOP Casing Couplings

作　　者：丁毅[1] 历建爱[1] 李平全[2] 佟琳[2] 

机构地区：[1]塔里木油田分公司物资采办事业部,库尔勒841000 [2]西安摩尔石油工程实验室,西安710065

出　　处：《理化检验（物理分册）》2012年第2期125-129,共5页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：采用宏观检验、金相检验、扫描电镜分析以及能谱分析等方法对某VAMTOP套管接箍镀铜层变色的原因进行了分析。结果表明:接箍镀铜层变色主要是由于镀铜层的表层铜发生氧化生成了铜的氧化物所致;该灰褐色氧化物变色层并未深入全镀铜层,不影响镀铜层与基体的结合,变色对接箍镀铜层的使用性能并未造成不良影响。Tarnishing reason of copper plate of VAMTOP casing couplings was analyzed by means of macro examination, microstructure examination, SEM analysis and X-ray energy spectrum analysis. The results show that the main reason for the tarnishing of the copper plating was that the surface copper oxidized and generated copper oxide. The dust color copper oxides hadn＇t occupied the whole copper layer, and it wouldn＇t destruct the combination of copper plate with matrix material. The tarnishing had no harmful effects on the service performance of the copper plate of the casing couplings.

关 键 词：套管接箍 镀铜层 变色 氧化 

分 类 号：TE931.2[石油与天然气工程—石油机械设备]