Keyword: «dsc»

This paper is proposed to take into account in the mathematical model of thermal process the heat of phase transformation when developing the technology of welding polymer pipes at ambient air temperatures below the normative values. The used function of the degree of crystallinity on temperature is determined according to DSC data. A formula is given for determining the effective heat capacity coefficient in the shock-capturing method for solving the heat conduction problem with a phase transition in the temperature range.