基于PE燃气管道焊接工艺的研究  

Study on Welding Process of PE Gas Pipeline

作　　者：陈胜利[1] 贺建平[2] 

机构地区：[1]河源职业技术学院,广东河源517000 [2]深圳大学机电与控制工程学院,广东深圳518060

出　　处：《塑料科技》2018年第1期51-54,共4页Plastics Science and Technology

基　　金：2016年广东省省级科技计划项目(2016A070715002)

摘　　要：应对聚乙烯（PE）燃气管道焊接质量问题，以DN110管为试验对象．静液压试验作为焊接质量评价标准，采用单因素试验法确定了PE燃气管道焊接的最佳工艺参数。结果表明：当吸热时间为60s．熔胶压力为0．17MPa，焊接压力为0．17MPa时，焊接接头的质量最高。基于最佳焊接参数，采用80℃．4．0MPa静液压试验。测试得到该PE燃气管道耐压时间为1250h，远远超过国家规定的1000h。In order to deal with welding quality issues of polyethylene （PE） gas pipeline, with DN110 as test subjects, hydrostatic test as weld quality evaluation criteria, a single factor test method was adopted to determine the best PE gas pipe welding process parameters. The results show that when the heating time is 60 s, melt pressure is 0.17 MPa, the welding pressure is 0.17 MPa, the highest quality of welded joints can be obtained. Based on the best welding parameters, the pressure time obtained by hydrostatic test under the condition of 80℃ and 4.0 MPa） is 1 250 h, far more than 1 000 h （which is prescribed by the state）.

关 键 词：PE燃气管道 焊接参数 单因素试验 静液压试验 

分 类 号：TQ320.674[化学工程—合成树脂塑料工业]