Èçäàòåëü: Èíñòèòóò ìåõàíèêè ìåòàëëîïîëèìåðíûõ ñèñòåì èì. Â.À. Áåëîãî Íàöèîíàëüíîé àêàäåìèè íàóê Áåëàðóñè, Ãîìåëü, Áåëàðóñü
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ÌÀÒÅÐÈÀËÛ. ÒÅÕÍÎËÎÃÈÈ. ÈÍÑÒÐÓÌÅÍÒÛ Èçäàòåëü: Èíñòèòóò ìåõàíèêè ìåòàëëîïîëèìåðíûõ ñèñòåì èì. Â.À. Áåëîãî Íàöèîíàëüíîé àêàäåìèè íàóê Áåëàðóñè, Ãîìåëü, Áåëàðóñü |
Summary: In this paper the calculation of the flexible plates of any form, in polar coordinates, resting on an elastic foundations is proposed to apply using an universal approach, based on the method of Gemochkin, making it possible to solve this problem complicated by the methods of the structural mechanics.
Martynenko M. D., Bosyakov S. M.
The micropolar theory of elasticity of cubic anisotropic body. pp. 11--14
Summary: The equations of movements of cubic anisotropic elastic media are received in the micropolar theory and in the theory of indeterminate momentary stresses. The limitations for coefficients of micropolar elasticity are obtained.
Nevzorova A. B., Barsukov V. G.
Force parameters of process face - pressure deformation of wood preparation with use flexible systems of discrete elements. pp. 15--17
Summary: The account-experimental technique of definition of force parameters of process face-pressing deformation of wood preparations with use of flexible system of discrete elements is developed. On an example of process of reception of the wood cartridge with an internal diameter of 30 mm the pressure and deformations in wood preparation are determined at various corners of a bend.
Taletskiy V. V.
The measuring of constant coefficients of elasticity of transversely-isotropic soils. pp. 18--21
Summary: New method is offered increase the precision of measuring coefficients of elasticity, by shortening the amount of tested soil samples and by carrying out all the experiment in one device. Here is the result of using this method for transversely-isotropic artificial warp in the conditions of plan strain.
Summary: Nomenclature of materials for marking road cover are described and development tendencies of that class materials in Belarus are analyzed in this review. It is shown that manufacture of road marking materials from home raw materials is a national economy problem. There is scientific base and production infrastructure to solve this problems are available in Belarus. Priorities for this problem solving are: development of new light-refleeting and luminescent pigments, also paints produced by Belarussian oil-chemical complex; the use of secondary polymer materials for marking works; development of small-range chemistry specialized on production of marking materials.
Bokhan Yu. I., Klubovich V. V., Saraseko M. N.
Microstructure and properties of capacitors ceramics with the components entered by a chemical precipitation method. pp. 32--36
Summary: The outcomes of the research on the ceramic materials microstructure for producing the chip elements of radio electronic engineering by the method of introducing the metal components forming crystalboundary structure by the chemical sedimentation on the initial blend are represented. It is shown that the entered in such a way metal components of nickel and copper intensify the process of ceramics sintering on the initial stage and that result in the reducing of sintering temperature and raising of denseness of finished up products.
Brazhnikov M. M., Grinyuk E. V., Brazhnikova L. Yu., Rybak A. S., Krul L. P.
Investigation of adgesion properties of neutralisated solutions of the hydrolisate of nitron - the basis of watersoluble glues. pp. 37--39
Summary: The method of determining of adhesion properties for glass-glue-paper system has been proposed. It has been determined that it is possible to dilute glue based on water-soluble polymers with water to the some concentration without changing for the worse of its adhesion properties.
Burmistr M. V., Tugolukov A. V., Sukhy K. M., Sperkach V. S., Shilov V. V., Gomza Yu. P., Pissis P.
Relaxation behaviour of low-molecular weight ionene-polyethylenglycol based compositions. pp. 40--44
Summary: Results of investigation of acoustic relaxation in anionically conducting low molecular weight ionene - poly(ethylene glycol) complexes of various ionene content are presented. Analysis of the results of the ultrasonic measurements shows that two dispersion regions are present in all the attenuation frequency dependence curves. The acoustic spectra measured involve two dispersion regions related, in accordance with the data obtained for pure PEG, to conformation transition and structural relaxation processes, respectively. the relaxation time values of the latter decreases with increasing temperature and decreasing ionene concentration. The essential increase of the sound velocity values occurs at the smallest ionene content (10 %) together with the characteristic r2 changes and the sharp drop in the f1 and f2 values, that are evidence of significant decrease of compressibility of the poly(ethylene glycol)-ionene solutions in comparison to that of the pure polymeric solvent. The latter can be explained as the result of increasing a level of intermolecular interactions in the system in comparison to the pure polymer solvent.
Gartman E. V., Mironovich L. L.
Properties of coatings from powder composites based on polyamides. pp. 45--47
Summary: Investigation results are cites of coating properties based on PA-6 polyamide and its compositions produced at Grodno PO "Khimvolokno". The effect of mineral fillers and modifying additives on coating parameters is disclosed.
Zavistovskiy V. E., Moiseenko V. I.
Hardness and adhesive strength of surfaced coat of alloy PG-SR4 on steel 20. pp. 48--51
Summary: Presented are the results of investigation of hardness and adhesive strength of surfaced coat of alloy PG-SR4 on steel 20. It was established that the coating hardness and its adhesive strength are in corelation dependense on temperature and time regime of the fusing. Fusing with preheating results in more homogenous microhardness within the fusion zone due to formation of soft interlayer of g-solution.
Il'yushchenko D. A., Kostomarov S. V., Shut V. N.
Posistor ceramics for protection elements of electronic connection lines. pp. 52--55
Summary: The resuits of experimental research of the influence of main components' ratio and dopants onto the electrical-physical characteristics of semiconducting Barium Titanate ceramics were presented. The composition of the posistor material with the low resistivity, high PTCR and the electrical strength was determined. The posistors, produced of the given material, are the effective means. of protection of the automatic telephone stations from current overloading.
Zhuk V. V., Sergienko V. P.
Frictional materials for "Belarus" tractors. pp. 56--58
Summary: Technical and ecological requirements to friction joints used in "Belarus" tractors have been considered. The main triboengineering characteristics of asbestos-tree frictional materials with organic matrix are cited. Limits of their thermal loading and temperature regions have been determined.
Korotkiy M. V., Makarevich A. V.
Modern tendencies of anticorrosion polymer materials (areview). pp. 59--65
Summary: Latest data from available literature on using polymer materials in the field of metal protection against corrosion have been systematized. A classification is proposed of rust-proof polymer materials with their characteristics and the main trends in this field are cited.
Oparin D. À., Medvedz A. V., Pavlutin V. N., Oparina F. R.
Efficiency of a protective effect synergistic mixtures of the heterocyclic thiones and industrial antioxidants of amino and phenolic types. pp. 66--68.
Summary: Antioxidantic efficiency of heterocyclic thiones was investigated in comparison to industrial antioxidants of amino and phenolic types and there was investigated the possibility of development of synergistic effect their mixtures in polyolefines.
Khalapsina T. I., Zlotnikov I. I., Smurugov V. A.
New technological lubricants and coolants for metall macining. pp. 69--72
Summary: New coolants and fatty tar based lubricants intended for metal cutting and plastic working have been developed. Their triboengineering and service characteristics have been investigated t
Summary: Are investigated consistens, structure, optical and physical properties of silicon nitride films, past long thermal oxidation in steams of water.It is shown, that the transformation of structure of silicon nitride films in steams of water depends on conditions of formation films and from conditions of long thermal oxidation.
Mamedov V. A.
Peculiarities of processing of cast-iron shaving wastes and obtaining from them the powder details. pp. 77--81
Summary: The possibilities of obtaining a powder from the gray cast-iron shaving wastes are considered. The comparison of iron and cast-iron powder particles morphology is shown. The structure, physic-technological, mechanical and antifriction properties of iron and cast-iron powder materials was studied. It was shown that iron powder materials surpass cast-iron materials on mechanical properties. Cast-iron powder materials show better antifriction properties especially during friction w/o lubricant.
Tolochko N. K., Arshinov K. I., Semashko V. I., Il'yushchenko A. F.
The transformation of the ZrO2 coatings under the action of laser radiation. pp. 82--85
Summary: There were investigated the particularities of the ZrO2 coatings' structure modifying in dependence on the conditions of their laser processing in a melting regime. The processing was carried out by the different types of lasers: continues (l = 10.6 and 1.06 µm) and pulse (l = 1.06 µm). The best efficiency of the coatings' modifying is achieved at using the continues CO2-lasers due to the possibility to provide the more stable operation of the processing at its comparatively low energy parameters. The specific particularity of the laser melting of ZrO2 coatings is the formation of the fragmented structure.
Shelestova V. A., Grakovich P. N., Ozolin A. A., Polkhovskiy M. V., Gorbacevich G. N.
Modification of carbon fibers used as fillers in PTFE composites. pp. 86--89
Summary: Effect of carbon fiber modification at elevated temperatures in air on their properties and parameters of PTFE-based composites was studied. Using the proposed technique of carbon fiber modification, a "Fluvis" composite can be fabricated, whose strength and antifrictional properties exceed those for the analogs.
Summary: Analytical literary survey on use of electromagnetic field of microwave frequencies for efficiercy enhancement and intensification of vegetable stock hydrolytic and biochemical conversion has been represented.
Kul'geiko M. P., Grinkevich I. V.
Polepiece of plant for electromagnetic building-up. pp. 96--98
Summary: Contraction of pole piece of plant was described for electromagnetic building-upas possibility for multiple resumption of work surface.
Tverdostup N. I., Burya A. I.
Devices and apparatus of the express control physical-mechanical parameters slack magnetic of heterogeneous substances and materials. pp. 99--102.
Summary: The features of apparatus for the express-control of magnetic permeability iron-stone of raw material and metal-polymers are considered. The ways of suppression of influence of the interfering factors (anisotropy of properties, curvature of a surface, dynamic error) are specified. For increase of sensitivity of the control in devices the auto generating measuring converters of impedance are used
CONFERENCE CALENDAR. p. 108