Panteleeva L.V.

10th anniversary of the «Institute of tribology and lubrication»

The article outlines the stages of formation and development and describes the main lines of business of the «Research institute of tribology and lubrication».
Keywords: process lubricant; lubricoolant; pipeline; compressor unit.

Sholom V.Yu., Zhernakov V.S., Abramov A.N.

Development of the technology of extrusion of the nut’s thread with chipless tap

There are shown the results of physical and mathematical modeling which allow to determine the actual value of the friction coefficient during thread extrusion in the nut, tribological characteristics of special lubricoolants, ensuring reduction of the friction coefficient between tool and workpiece with increasing speed of thread processing by a plastic deformation.
Keywords: thread processing plastic deformation; friction coefficient; lubricoolants; mathematical and physical modeling; industrial testing.

Sholom V.Yu., Zhernakov V.S., Abramov A.N.

Methodology of research of tribotechnical characteristics and selection of lubricants for the processes of cold metal forming

The article proposes the evaluation methodology of contact interaction of tool blanks in the processes of cold deformation of metals, which makes it possible to reduce the time and material costs on industrial testing of lubricants, to choose technology of preparation of a surface of workpieces based on requirements of the technological process, to increase the service life of the tool, to reduce the cost and to improve the quality of the products.
Keywords: cold metal forming; contact friction; lubricant; tribotechnical properties; drawing; direct extrusion; stamping; drawing through roller die; reduction; internal thread forming.

Sholom V.Yu., Abramov A.N., Tyulenev D.G., Fazliakhmetov F.N.

Technological development of lubricant for drawing alloy steel pipes

The article demonstrates the results of researches, development and implementation of technological lubricant «Rosoil-267» for pipe drawing operations from high-alloy and stainless steels at pipe factories of Ural region.
Keywords: pipe drawing; viscosity; technological lubricants; laboratory and industrial tests.

Sholom V.Yu., Abramov A.N., Tyulenev D.G.

The study of influence of chemically active additives on thermal stability of lubricants

Results of influence of chemically active additives on the reactive thermal resistance of lubricant are shown in the article. It is used an upgraded four-ball machine for research.
Keywords: critical temperature; four-ball machine; additives; lubricants.

Puzyrkov D.F., Savelyeva N.V., Sarantseva S.A., Kornilova O.P., Yuryev V.L.

Development of compressor oil for screw compressors

The technical requirements for screw compressor oil are formulated. The results of the research of the domestic oil development are presented in the article. The comparative laboratory tests with foreign analogues are demonstrated as well as the results of industrial tests of oil on the compressor «Atlas Copco».
Keywords: compressor oil; screw compressors; tribological properties; laboratory research; experimental-industrial testing.

Sholom V.Yu., Korshunov A.A., Abramov A.N.

The influence of cutting fluids on the efficiency of abrasive machining

The article presents the results of laboratory studies for assessing the functionality of various oil and watercompounded lubricoolants during abrasive machining of workpieces made of Gray iron, low-carbon steel and natural stone «Red Jasper».
Keywords: abrasive machining; lubricoolant; friction; grinding.

Schuster L.Sh., Mamleyev Raf.F., Kamaletdinova R.R., Yuryev V.L.

Improving the efficiency of cermets in heavily loaded tribounits

Ceramic-metal material (cermet), including those based on titanium carbide, can have undesirable pores. Therefore, for shielding pores on the surfaces of the cermet is applied wear-resistant coating. But it remains unclear how it modifies their tribological properties. The aim of this article is to determine the characteristics of the adhesive interaction depending on the temperature and pressure for different pairs of friction ceramic- metal materials based on titanium carbide with a wear-resistant coating. It is found that the application of wear-resistant coatings TiN, Zr-Ti-NC or TiCrN on some ceramic-metal materials reduces the strength of adhesive bonds on the slice and molecular (adhesive) component of the friction coefficient. This increasing of temperature to 600 ° C has no significant effect on the reduction of the carrying capacity of the frictional contact.
Keywords: сeramic-metal material based on titanium carbide; wear-resistant coating; bond strength shear; molecular (adhesive) leaves the coefficient of friction; hardening coefficient of adhesive bonds.

Schuster L.Sh., Krioni N.K., Kamaletdinova R.R.

The dependence of wear of tribounits from the material of the friction pair

Investigations on wear of friction pairs on a single ball tribometer «NANOVEA TRB» are performed. As a ball spherical ends cut from indenters are used, which participated in the studies on the interaction of adhesive (in a single ball adheziometr), and as examples - the same samples from these studies. Thus, researches are performed by direct and inverse wear of friction pairs uncoated and coated with a metal or ceramic-metal substrates. It is alows to study not only the wear of the friction surfaces of the individual, but also to estimate the total wear of various friction units, and to establish and explain the relationship of wear with the indicators in the adhesive interaction frictional contact.
It is studied the wear of the following pairs of friction of heat-resistant cast alloy ZhS6U and ceramic-metallic material (cermet) on the basis of titanium carbide TiC-ZhS6U (uncoated and coated with wear-resistant TiN and Zr-Ti-NC). There is shown direct evidence adhesive-fatigue character wear a solid-state direct friction pair. It is found that the wear-resistant coating on cermets prevent entry into the friction surface solid foundation TiC, thereby reducing abrasive wear of mechanical parts friction pair wear and reducing overall friction units. It is shown that in order to reduce wear of friction units should be used in both parts cermets friction pair. The best effect in wear resistance can be obtained if both surfaces of the pair of friction wear resistant coating applied.
Keywords: direct and inverse friction pairs; ceramic-metallic materials; wear-resistant coating; wear rate; total wear of friction units; hardening coefficient of adhesive bonds.

Emaev I.I., Krioni N.K., Zuber V.I., Nigmatullin R.G.

Modification of plastic lubricants with «carbonic carcass» additive

Despite the large variety of additives that are used for modifying plastic lubricant materials, the possibility of using «carbonic carcass» (CC), as it was so called, as an additive is still unexplored. The aim of this study is to compare the tribological characteristics of the lubricant modified with CC and molybdenum disulphide (MD), taking into account the pressure and temperature of the contacting surfaces. The indexes of extreme pressure lubricant and wear-preventive property for plastic lubricant materials are given in the research article. The indexes are discovered by four-ball machine according to All-Union State Standard 9490–75 (score ultimate load, welding load, load wear index and wear scar diameter). The microstructure and chemistry of carbonic carcass powder were analyzed. The lubricants were subjected to the temperature and pressure changes. This way lubricants for the resistance of adhesion bond on shear and molecular quality coefficient of friction are checked. It is demonstrated that the use of tender lubricant materials modification by carbonic carcass instead of molybdenum disulphide under extreme loading conditions provides more advantageous tribological characteristics.
Keywords: carbonic carcass; molybdenum disulphide; plastic lubricant; critical load; wear spot; strength of adhesive communications on shear; adhesive component coefficient of friction; pressure; temperature.