粘弹体防腐材料研制及其应用

Development and application of viscoelastic anti-corrosion materials

介绍了中国石油天然气管道科学研究院自主研制的粘弹体防腐材料的生产设备、技术参数以及工艺流程,并根据GB/T4472-84、DIN30670-91、SY/T0414-2007、ISO21809-2008和GB/T23257-2009相关标准,对该材料70℃阴极剥离、120d热水浸泡、23℃剥离强度、剪切强度、绝缘电阻率、密度、冲击强度、吸水率等性能进行了跟踪测试,结果表明:各项性能指标均符合相关标准要求。该材料在西气东输二线补口、阀室、站场等已广泛应用,具有良好的防腐性能,基本确保了西气东输二线管道的安全运行。

Production equipment,technical parameters and process of viscoelastic anti-corrosion materials developed independently by the Pipeline Research Institute of CNPC are described,and a tracking test is conducted for cathode disbonding at 70℃,120 d hot water soaking,peel strength at 23℃,shear strength,insulation resistivity,density,impact strength,water absorption and other properties of the material in accordance with relevant standards such as GB/T4472-84,DIN30670-91,SY/T0414-2007,ISO21809-2008 and GB/T23257-2009.The results show that all performance indexes are in line with the relevant standards.The material with good corrosion resistance has been widely used in the field coating for welded joint,valve chambers and stations in the 2nd West-to-East Gas Pipeline,which basically ensure the safe operation of the Pipeline.