Recently, special attention is paid to methods of liquid-metal treatment, which are associated with the action of external physical factors. Thus, an essential role belongs to external energy impacted into the melt. This leads to stabilization and homogenization of liquid state and internal structure as well as its individual components. At the same time, the maximum structure and mechanical properties’ improvements of alloys and finished products are achieved in the case of complex processing combining deep refining of melt from harmful impurities (using reagent or vacuum treatment, etc.) with a physical effect on solid-state microgroups in liquid metal. Various technological methods for imposing dynamic effects during pouring and solidification are become widespread to suppress and prevent defects during production process. Particularly high efficiency of dynamic effects is achieved by simultaneous application of vibration pulses to the melt and regulated forced stirring. The study is based on the idea of using the linear pinch-effect phenomenon to influence its thermal and force factors on aluminium melt during its repeated circulation pumping through a local zone with a pressure reduced relative to atmospheric one.