浅谈聚乙烯管道电熔连接过程中的易发问题及质量控制  

Brief Discussion on the Prone Problems and Quality Control in the Process of Polyethylene Pipeline Electric Fusion Connection

作　　者：王鑫 WANG Xin(Hefei Heran CR Gas Co.,Ltd.,Hefei,Anhui,230001,China)

机构地区：[1]合肥合燃华润燃气有限公司,安徽合肥230001

出　　处：《工程建设（维泽科技）》2023年第11期83-86,共4页Engineering Construction

摘　　要：文章研究了聚乙烯管道电熔连接过程中的易发问题及质量控制。在研究中指出不良操作和焊接工艺缺陷是电熔连接接头缺陷的主要原因。不良操作包括管件组装、定位、管材或插口管件表面氧化层的处理等操作不符合规范的要求。焊接前对管材表面氧化层的刮除工作不充分和电熔管件与待焊管材不同轴现象也可能导致焊接失败。此外,焊接后采用冷水强制冷却也可能影响焊接质量。该研究还讨论了电熔连接的质量控制措施,包括选用具有可靠产品质量控制系统的管道原件生产厂家、焊接机具、焊接工艺和过程管理等方面。这些措施可以帮助提高电熔连接的质量,并确保焊接接口满足相关标准要求。The article studies the common problems and quality control in the process of polyethylene pipeline electric fusion connection.In the study,it was pointed out that poor operation and welding process defects are the main causes of defects in the electricfusion connection joints.Poor operations,including assembly and positioning of pipe fittings,and treatment of surface oxide layer on pipe or socket fittings,do not meet the requirements of the specifications.Insufficient scraping of the oxide layer on the surface of the pipe before welding and the phenomenon of different axes between the electric fusion pipe fittings and the pipe to be welded may also lead to welding failure.In addition,using cold water for forced cooling after welding may also affect the welding quality.The study also discussed quality control measures for electrofusion connections,including the selection of pipeline component manufacturers with reliable product quality control systems,welding machines,welding processes,and process management.These measures can help improve the quality of electric fusion connections and ensure that welding interfaces meet relevant standard requirements.

关 键 词：聚乙烯燃气管道 电熔连接 质量控制 

分 类 号：TU99[建筑科学—市政工程]