As a result of thermal expansion of the gas phase of a foam mass playing the role of compacting component in a closed volume, we observe the appearance of excess internal pressure accompanied by the formation of the fields of pressure, temperature, and moisture content. The partial flows of liquid caused by these fields are directed from the center toward the perforated walls of the form and go further leaving the form. Under the action of electrohydrothermal force fields, we observe the appearance of three partial flows of moisture combined into a single flow in the mass. Thus, the phenomenon of self-compaction is accompanied by the processes of heat and mass transfer. At low temperatures, moisture moves in the material in the form of a fluid. At the same time, at high temperatures, it has the form of vapor. The density of the total flow of moisture can be represented as the sum of densities of the partial flows. The analytic investigation of the mechanism of heat-and-mass transfer flows enables us to study the behavior of the foam mass in the course of heat-and-force treatment and to choose the best conditions for this treatment.

由于泡沫物料的气相热膨胀在封闭的体积中起到压实组分的作用，我们观察到出现了过高的内部压力，并伴随着压力，温度和水分含量场的形成。由这些场引起的部分液体流从中心指向模板的穿孔壁，并进一步离开模板。在电热热力场的作用下，我们观察到三个部分的水汽流在物质中合并为一个水流。因此，自压缩现象伴随着热量和质量传递的过程。在低温下，水分以流体形式在材料中移动。同时，在高温下，它具有蒸气形式。水分的总流量的密度可以表示为部分流量的密度之和。对热质传递流动机理的分析研究使我们能够研究泡沫质在热力处理过程中的行为，并为该处理选择最佳条件。