The overall engineering quality of PE pipes,welding,and backfilling are important links.The overall quality control of pipelines needs to be emphasized in the construction process,and welding technology has an impact on the connection performance and later maintenance of the entire pipeline.
The construction of PE pipes involves two important steps:welding and backfilling.In recent years,maintenance records have shown that there have been issues such as weld detachment and water leakage.The first issue belongs to the backfilling problem,which can be solved by strengthening construction management and improving the quality of backfilling by backfilling fine sand or fine clay around the pipeline through the construction department.The second issue belongs to the welding problem,which accounts for two-thirds of all accident causes.In addition to the reason for mixing and welding materials of different brands between pipes and fittings,as well as between pipes and fittings,there are also reasons for poor welding quality
The welding of product lines is a professional work with high technical requirements.The cutting flatness and cleanliness of the welding surface,the control of temperature and time during heating,the control of docking time and pressure,and the connection between each link are all important factors affecting the welding quality.Negligence in any link can lead to a decrease in welding strength.
In summary,in addition to hiring professional welding personnel for PE pipes,it is necessary to continuously improve the overall comprehensive quality and conduct monitoring and testing on the following aspects to ensure project quality.