International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

The aim of this work the graphical regularities of the fertilizer pellets outflow through a flattened cone have been considered in an effort to justify the configuration of universal colter spreader which would provide even distribution of the grass and grain seeds, and mineral fertilizer pellets within the soil. It has been determined that to achieve the granular materials’ uniform outflow in the direction transverse to travel speed over the colter spreader surface its elliptical cross-section is required. To this effect the section plane should be directed perpendicular to travel speed, cross over all cone generators at an angle between it and central axis of the latter other than П/2.

The plasma aided flame retardation of wood, wooden products and cellulosic fibrous materials has been conceived and developed as a result of plasma aided process of capillary impregnation with nitrogen- and phosphorous containing water solution. The surface pre-treatment in non-thermal equilibrium atmospheric pressure plasma substantially alters its electrical, chemical and capillary activity, thus improving some basic characteristics, such as penetration depth, water solution spreading and wicking, liquid adsorption capacity. This study has been developed as part of a large investigation on plasma-chemically activated wood surface and its capillary impregnation with nitrogen- and phosphor flame retardant containing water solution. It has been used to reveal and illustrate the impact of some ionic and silicon surfactant. The experimental studies of some chemical, ion and capillary activity changes of three species of rain-forest Mexican heart wood surfaces using selected surfactants and spreaders show that they have substantial contribution to the effective plasma-aided capillary impregnation processes.