Sökning: "Oxy-fuel Welding"

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  1. 1. Isocyanates formation from thermal degradation of polyurethane foam during welding of district heating pipes

    Master-uppsats, KTH/Ergonomi

    Författare :Muhammad Akram; [2023]
    Nyckelord :Polyurethane; Isocyanates; District Heating Pipes; Oxy-fuel Welding; Manual Metal Arc Welding;

    Sammanfattning : Polyurethane insulation foam, which is used as insulation on district heating steel and copper pipes, is made from polymerisation of polyol and diisocyanates monomers. Installation of new district heating pipes or replacement of old pipes involves masses of welding activities. LÄS MER