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The article is devoted to the creation of ultrasonic equipment for researching of erosion resistance of various materials to cavitation. Results of research of functional properties of created ultrasonic device are provided.
The article considers the problems of the development and the application of the technological volumes used as a part of the ultrasonic technological apparatuses at the intensification of the technological processes in a running mode. Proposed approaches to the design and application of the technological volumes allow developing the ultrasonic apparatuses with necessary parameters of ultrasonic action...
The article is devoted to development and design of the carousel-type automated line for ultrasonic welding of the article made of thermoplastic materials. Developed automated line is intended for ultrasonic ring welding of two work pieces of spherical articles from thermoplastic materials.
The article presents the results of the study, which allows design the control device of the amplitude of the radiating surface of complex form generating vibrations with the amplitude of more than 10 micron.
The article presents the results of development of new type of unit-dose pack with special guide ways providing even laying of the spreads. The technology is based on ultrasonic welding. As a result of experimental studies we chose polymer materials for the production of soft unit-dose packs, proposed the method of process automation of its production and designed the construction of automated ultrasonic...
The article presents the results of studies allowing us to reveal the operation condition of the ultrasonic apparatuses with multi half-wave radiators in confined space, at which efficiency of ultrasonic influence on the technological process decreases and essential deviation from nominal operation mode is observed.
In the article we present the results of researches of ultrasonic welding equipment applied for the formation of linear seams of various configurations at the production of volumetric geocells. On the base of the analysis of conditions of seam formation (vibration amplitude, static pressure, and welding time) at the use of tools with different welding surfaces technical recommendations on the application...
The article is devoted to the study of integral criterion of indirect estimation of the parameters of the technological media. Carried out researches show, that integral criterion obtained by integration of current envelope flowing through the ultrasonic vibrating system, which is received at the adjustment of frequency of the ultrasonic generator near resonance frequency of the radiator, depends...
The article presents the results of studies allowing us to reveal the operation condition of the ultrasonic apparatuses with multi half-wave radiators in confined space, at which efficiency of ultrasonic influence on the technological process decreases and essential deviation from nominal operation mode is observed, that can lead to the failure of the ultrasonic equipment.
The article is devoted to the development and the design of ultrasonic welding tools intended for the generation of lengthy seams by the press welding. We solve the problem of the formation of even distribution of vibrations radiating surface, which size exceeds half of the wave length of ultrasonic vibrations in the material of the tool. The dependence of distribution of vibration amplitude along...
The article is devoted to the study of necessity to use computer modeling of the ultrasonic vibrating systems by the finite-element method. There is a need to determine the influence of specified parameters of finite elements on the calculated resonance characteristics.
The article presents the results of the studies aimed at the efficiency increase of the piezoelectric vibrating systems with multi half-wave radiators made in the form of the bar with variable diameter. It is determined, that the change of the form of junction between the parts of different diameters of the radiator essentially influences on the efficiency of ultrasonic radiation in liquid media.
The article presents the phenomenological model of the formation of cavitation area in high-viscous and non-Newtonian liquids. Proposed model is based on the study of the formation of cavitation area as a whole but taking into account the main effects and phenomena occurring inside this area. The analysis of the model allows revealing optimum intensities of the ultrasonic influence, which are necessary...
The article is devoted to the study of drying process of list material under the action of high-intensity ultrasonic vibrations. The advantages of ultrasonic drying and possibility of its practical realization are described in the article. The ultrasonic drier applied in practice of ultrasonic drying of list materials was proposed and developed.
The article is devoted to the development and design of automated conveyor line for ultrasonic welding of the wares made of thermoplastic materials. Produced automated line is intended for ultrasonic welding of circular seam of two workpieces of thermoplastic spherical wares.
The article is devoted to definition of features of development of ultrasonic vibratory systems, which to affect on accuracy of calculation of resonance frequency. Related with threaded connection between parts of vibratory system the feature of calculation is detected. Comparison of result of researches by FEM and parameter of real constructions is made. This comparisons show that at modeling of...
In this paper the results of studies of functional possibilities of the optimization of geometric sizes and the construction development of specialized resonance concentrating link with enlarged radiating surface are presented. Developed theoretical model lets determine the value of longitudinal and transverse sizes of each part of concentrating link providing the achievement of required features...
In the article the approach to efficiency increase of ultrasonic cavitation treatment of high-viscosity liquid media base on the optimization of the conditions of propagation of ultrasonic vibrations in cavitating liquid is proposed. Reveal of optimum conditions is realized on the base of the analysis of developed model of propagation and attenuation of ultrasonic waves in multibubble cavitating medium...
In the article the rules and consequence of the design of separate units (piezoelectric transducers, boosters, concentrators and working tools) at the production of piezoelectric vibrating systems — sources of ultrasonic action on different technological processes are introduced. Proposed rules provide the development of the ultrasonic vibrating systems with necessary parameters of ultrasonic action,...
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