Open AccessPolyethylene pipe socket welding technology in mining
Author(s) -
OA Ammosova
Publication year - 2022
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/991/1/012029
Subject(s) - welding , piping , polyethylene , materials science , joint (building) , thermal , composite material , electric resistance welding , plastic welding , mechanical engineering , process (computing) , metallurgy , arc welding , structural engineering , engineering , filler metal , computer science , physics , meteorology , operating system
The proposed technology of polyethylene pipe socket welding can be used in construction of polyethylene piping systems in the mining industry. Based on numerical simulation of thermal process, the effect of low temperatures on the temperature field dynamics in socket weld joint is investigated. The need of preheating and usage of thermal insulation at the cooling stage during welding at low temperatures for the thermal process to develop according to the patterns of welding at acceptable temperatures is shown. A procedure is given for determining the size of a heat-insulating chamber for cooling a welded socket joint at low temperatures from the condition of ensuring the cooling rate characteristic of welding at permissible temperatures.