Calculation of the thermal and stress-strain states in electrofusion welding of polyethylene pipes in thermoelastic statement

Risk assessment of electrofusion joints in commissioning of polyethylene natural gas networks

“…To achieve satisfactory welded joints, the welding temperature also needs to be set in a range of technically confirmed high-working-temperature. Researches have shown that the melt pressure at the welding cavity is too low to fill all gaps between the coupler and pipe when welding in low-temperature regimes [16]. Therefore, weather condition at the time of welding is very important in electrofusion welding process [17].…”