浅谈喷砂工艺对海底管道节点三层结构防腐涂层的影响  

Discussion on the influence of sand blasting technology on the three-layer structural anticorrosive coating of submarine pipeline joints

作　　者：李永宇 梁光强 贾晓瑜 Li Yongyu;Liang Guangqiang;J ia Xiaoyu(Offshore Oil Engineering Company Limited,Tianjin 300461)

机构地区：[1]海洋石油工程股份有限公司,天津300461

出　　处：《石化技术》2024年第12期79-81,共3页Petrochemical Industry Technology

摘　　要：目前我国海上油气输送大多采用管道输送的方式,海底管线防腐的好坏直接关系到管道的使用寿命。节点防腐涂层的施工解决了现场焊接后的防腐工作,但因受现场施工条件限制,节点的防腐性能经常发生问题。其中底材表面处理是涂层涂敷的重要步骤,决定着涂层与底材之间的附着力、抗阴极剥离等重要性能。因此,着重分析喷砂工艺对海底管道节点处金属表面质量的影响。At present,most of China’s offshore oil and gas transportation relies on pipeline conveyance.The quality of anti-corrosion at the pipeline nodes directly affects the service life of the pipelines.The construction of anti-corrosion coatings at nodes addresses the anti-corrosion work following on-site welding.However,due to the constraints of on-site construction conditions,the anti-corrosion performance of the nodes often faces issues.Among these,the surface treatment of the base material is an essential step in coating application,determining the adhesion between the coating and the base material,as well as key properties such as resistance to cathodic disbondment.This text focuses on analyzing the impact of sandblasting technology on the surface quality of metal at the nodes of subsea pipelines.

关 键 词：海底管道 三层聚乙烯/聚丙烯 节点防腐 喷砂 施工工艺评定 

分 类 号：TG1[金属学及工艺—金属学]