The article examines the problem of standing uncooled milk just after milking, when there is a risk of increased activity of microorganisms and bacterial contamination. Devices for pre-cooling the milk are presented. An innovative cooling device during milking in the milking hose immediately after the milking cup is described. The advantages and disadvantages of such devices are discussed.

The paper presents a study and analysis of technologies for the creation of details from metal powder. Types of metal powder particles and methods of their production are described. The required powder characteristics depending on the method of production are also pointed out.

The paper describes a method and system for obtaining parts with high hardness and wear resistance by high-speed impact deformation (compaction) of powder materials, backfilling with silicon-carbide coating and high temperature sintering. The materials are ground in a ball mill with innovative grinding bodies and grinding media. The powder mixture may contain micro and/or nano elements before compaction. The powder materials are compacted with a high-frequency impact press with controllable frequency and number of impacts. After pressing, the parts are sintered. In some cases, the parts are filled with fine silicon-carbide powder, then pressed and sintered. This approach allows energy efficient production of alloys and parts with higher hardness and wear resistance