The article presents a methodology for calculating the force effect on a fibrous suspension of working bodies in a centrifugal grinding apparatus. The aim of the research is to calculate the force per tooth of an inertial body at different speeds of rotation of the rotor, to determine the effect of the circumferential speed of movement of inertial bodies on the grinding process of fibrous semi-finished products. The article discusses the mechanism of grinding on a centrifugal knife grinding apparatus, determines the tangential shear forces at the contact of the grinding satellite knives with the grinding bowl knives, determines the effect on the fiber of rolling friction forces and sliding friction forces when the grinding satellite knives come into contact with the grinding bowl knives, as well as the effect of specific pressure at the point of contact of the satellite knives with the grinding bowl knives under the influence of inertial forces. Based on the research results, it is scientifically substantiated that the forces arising at the minimum of the considered values of the rotation speed of inertial bodies are sufficient to break the fiber when using this installation for grinding fibrous semi-finished products. An increase in the speed of rotation of the satellites causes a positive change in the physical and mechanical characteristics of the finished castings.

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At the end of the 20th century, a theory was put forward, suggesting that with the help of universal molecular robots, it would be possible to collect any objects from improvised molecules according to a given program. The process was called "nanotechnology". The term «nano» comes from the Greek word "nanos" (dwarf) and corresponds to one billionth of a unit. Nanotechnology is the most modern and advanced direction of science and technology development. The excavations of archaeologists prove that nanomaterials were widely used in the ancient world, for instance, the Mayan civilization used clay, the structure of which contained nanofragments. In ancient Mesopotamia, weapons and glasses painted with metal nanoparticles were produced. In 2007, the state corporation "Russian Corporation of Nanotechnologies" was officially registered in Russia. For the implementation of processes occurring at the molecular level, it was necessary to develop methods for grinding substances to design new substances with super-efficient properties. Due to the introduction of nanotechnology to science, technology, medicine and other fields, there will be significant changes in people's lives. Recently, the problem of introducing nanotechnology into medicine and pharmacology to obtain effective medicines of superhigh quality is especially urgent. One of the main issues nanotechnologists are facing is the problem of grinding substances to a nanostate. The existing processes of grinding substances often require not only high energy costs and labor intensity, but also do not allow achieving the desired result. The article presents an original method of grinding various substances to the molecular level by grinding the molecules of the substance with the particles of the complex "carbyne-cyclic ion-ligand" during the rotation of the complex under the influence of an external electric field. The conducted laboratory tests confirm the effectiveness of the proposed method.