Back to the main page  
Scientific Technologies



THE PROJECTING OF TECHNOLOGICAL EQUIPMENT
FOR THE NATURAL LEATHER GARNETING

Scientific direction: machine-building
Specialization: Light industry
Project objective: The working out of the technological equipment for the weakening of leather fibrous structure and its garneting.
    The creation of modern resources-economy technologies of processing natural and artificial materials together with corresponding measures of ecological safety of the production is one of the difficult tasks that are set before the world economy. The usage of natural leather wastes and their processing into different materials and products after their prior garneting blends into this complex of problems.
    Till this time, for the garneting of the natural leather wastes they used the universal technological equipment that was originally used in other branches of industry and was not adjusted for this purpose. Low quality and productivity of garneting were its aftermath. This made the working out of technological equipment for natural leather garneting on the basis of optimal parameters of the technological processes of leather garneting especially important.
    The structural and mechanical model of determined leather fibrous structure was worked out for the projecting of technological equipment for natural leather garneting.
    The method of determining of more rational parameters of garneting was offered on the basis of the worked out structural and mechanical model of leather fibrous structure. This method is based on finite fixation of leather structure that is the most optimal for garneting. It helps to determine the necessary stressedly-deformed state. This method gives the possibility to fix the minimal values of material stretching deformation and the minimal efforts that must be created by the technological equipment so that to begin the process of leather fibrous structure weakening and its garneting respectively.
Key words: leather, fibrous structure of leather, physico-mechanical properties of leather, equipment for leather garneting.
Chief of the project: M.Ye. Skyba, professor, Rector of the Technological university of Podillya, the head of the department of Machinery and instruments.
tel. (03822) 2-32 54, fax (03822) 2-32-65
e-mail: ndc@beta.tup.km.ua

THE PROJECTING OF PRESS-MOULDS FOR SOLE MOULDING

Scientific direction: machine-building
Specialization: Light industry
Project objective: the working out of the engineering method of projecting press-moulds for sole moulding.
    The reliability of goods made of polymer material that is received in the process of moulding under the pressure depends on physico-mechanical properties in the places, which experience the greatest influence in the process of wearing.
    The construction of moulding machine elements is very important in the process of structure formation of moulded soles. The most important element of moulding machines is the press-mould for soles.
    In modern moulding machines press-moulds are filled through several inlets. As the result of this, joint seams that have poor wearing characteristics are formed in flows meeting places.
    To study the influence of press-mould parameters on the places of joint seams in the sole the mathematical model of polymer material melt flow inside of the press-mould was worked out. The mathematical model is based on Navye-Stocks’ equations for very tough liquids. The system of differential equations with regard for boundary conditions was solved by finite disparity method of markers and closets.
    On the basis of this mathematical model the engineering method of projecting press-moulds for moulding machinery was worked out. It gives the possibility to determine the press-mould constructive parameters which provide the location of sole joint seams in the places that are least loaded in the process of wearing .
    Using this method, a new construction of sole moulding press-moulds was worked out. Such press-moulds exclude the formation of joint seams and provide higher reliability of goods.
Key words: moulding machine, press-mould, joint seam, reliability of soles, method of press-mould projecting.
Chief of the project: M.Ye. Skyba, professor, Rector of the Technological university of Podillia, the head of the department of Machinery and instruments.
tel. (03822) 2-32 54, fax (03822) 2-32-65
e-mail: ndc@beta.tup.km.ua
O.M. Synyuk, candidate of technical science, senior teacher of the department of International information of the Technological university of Podillia
B.M. Zlotenko, candidate of technical science, assistant professor of the department of Electromechanical systems in Kyiv national University of technology and design.

IONIC TECHNOLOGIES OF SURFACE REINFORCEMENT

Scientific direction: physical and technical problems of materials scienc
Specialization: mechanical engineering
Project objective: designing the technology of ionic nitration of machine details, instrument and equipment in non-hydrogen medium.
The technology of controled diffusion in the plasma of gas anti-brittle medium envisages application of ecologically clean gas medium which includes hydrogen embrittlement. The technology is distinguished by highly economical operations, efficiency and overpasses the foreign analogs: power consumption falls to 40%, gas consumption reduces in 3 or 4 times comparing with the ionic hardening in ammoniac medium. The technology is ecologically clean and ensures better labour condition. It is distinguished by good process controlling, as well as by the variation of physical and mechanical characteristics and phase composition of the surface layer in wide range. On this basis the techniques and mathematical model for the optimization of properties of the article being hardened have been worked out depending on the specific operational conditions and the type of metal.
Sphere of usage: machine-building, metal processing (cutting tools, casting moulds), processing of precious stones, aircraft building and technology operating in vacuum, wood processing, agricultural machine-building, hard alloy production, parts working in friction and wear, motor vehicle industry (crankshafts and distributing shafts, sleeves).The realization of the technology allows to increase the surface micro-hardness in 1,2 – 4,5 times, the limit of polycyclic fatigue in 1,9 – 3,6 times, reduce the friction index from 0,20 to 0,12, increase the wearing quality of details and instrument in 2,5 – 16 times. Key words: nitration, non-hydrogen environment, technology, equipment, durability
Chief of the project: prof. V. Kaplun, doctor of technical sciences, deputy rector
tel. (03822) 2-32 54, fax (03822) 2-32-65
e-mail: kaplun@beta.tup.km.ua

TECHNOLOGY AND EQUIPMENT FOR EXTRUSION OF GRAIN FORAGE

Scientific direction: agricultural
Specialization: feed production
Project objective: designing the effective technologies and equipment for extruding of the grain forage, beans, grain reprocessing waste products (buckwheat husk, siftings, corn-ears, grass seeds), mill cakes of oil plants (sunflower, rape) with saponite additives. As the result of the barothermical prossessing of raw material in the extruder under the pressure of 10 Mpa ,with the temperature up to 160°C and shear deformation complex structures of whites, carbons and cellulose split to more simple, that are easier digested by animal stomach ferments, the assimilation of the nourishing elements by the animals increases to 90…95%. The greater part of morbific bacteria, microbes, moulds, fungi is destroyed.
Saponite additive enriches fodder with mineral compounds, microelements, stimulates the animals growth, prevents their illness, especially of the young animals. Saponite (soap stone) is an alkaline alsomosilicate, that has high absorbing and cation changing properties.Unique layers of saponite suitable for indusrial usage are found in Ukraine (Tashkiv and Varvariv deposits in Khmelnytsky region). The described technology is conducted with the help of the extruder K24-127 which is produced by Termoplastavtomat plant. Its construction is designed and continuously improved by inventors, members of university scientific staff.
The fodder produced under new technology favors to the animals sanitation, receiving the high quality animal products and have low self-cost.
Key words: technology, feed, effectiveness, extruder
Chief of the project: prof. V. Kaplun, doctor of technical sciences, deputy rector
tel. (03822) 2-32 54, fax (03822) 2-32-65
e-mail: kaplun@beta.tup.km.ua

TECHNOLOGY OF REGENERATION OF USED-UP MINERAL OILS

Scientific direction: the technology of mining and processing of minerals
Specialization: combustive-lubricating materials
Project objective: working out of the regeneration technology of used-up lubricants
Regeneration technology is based on the usage of physical and chemical methods of refinement and consists of several stages: processing with chemical coagulants for condensation and polymerization products deletion. For deletion of the dissolved water the method of acceleration in vacuum is used. Deleting of organic and water dissoluble acids, alkalis, high-molecular compounds and pitches from the lubricants, and its decolorizing is conducted with the help of physical and chemical processing with natural especially activated materials. The technology presupposes the conducting of the regeneration in the conditions, which prevent from the influence of high temperature on lubricants.
Regeneration of used-up mineral lubricants with the usage of natural minerals allows to renew their operational, physical and chemical features.
Key words:lubricants, used-up lubricants, regeneration
Chief of the project: V. Oleksandrenko, candidate of technical sciences, chief of Scientific and Research Sector,
tel. (0382) 72-85-74, fax (03822) 2-32-65
e-mail: ndc@beta.tup.km.ua

INSTRUMENT-ACCUMULATOR OF HYDROGEN
FOR MECHANICAL PROCESSING OF CONSTRUCTIONAL MATERIALS

Scientific direction: mechanical engineering
Specialization: machine-tools and instruments
Project objective: designing the effective technology of metal cutting.
The essence of instrument-accumulator action is that while processing the constructional material by dismantling the scobs, in the zone of cutting with its help, the conditions which assist the transfer from power-consuming (inner-grain) to intergrain destruction with very low destruction energy are created. It occurs because of hydrogen ebbrittlement in cutting zone, also because of the influence of hydrogen on mechanical features of the metals: unique activity of hydrogen is mainly determined by free movement of its nucleus, deprived of electron, i.e proton, in crystal grate of the metal. Instrument-accumulator of hydrogen is an instrument with surface layer which contains the hydrogen and is able to accumulate hydrogen at high temperatures and with the ability of prompt charging.
Awaited results: significant reduction of the cutting process power- consuming and as the aftermath the reduction of material costs.
Key words: processing with cutting, metal cutting instrument, hydrogen chopping, hydrogen.
Chief of the project: prof. Y. Gladky, doctor of technical sciences, director of Correspondence and Distance Education Institute,
tel. (0382) 72-80-76, fax (03822) 2-32-65
e-mail: glad@beta.tup.km.ua

DEVICE FOR DETERMINATION AND CONTROL OF CONFIGURATION OF VOLUMETRIC CLOTHES SECTORS

Scientific direction: instrument making
Specialization: light industry
Project objective: : extension of functional capabilities and improving of the precision of curvature measuring in different intersections for quality control while tailoring.
The task is solved with the help of adjustment of the objective table on crossbar switch, which rotates around its axis with defined step and capability to measure the curvature in different intersections.
The device includes the optic and electric controlling part. The device allows to make more convenient clothes.
Key words: configuration of volumetric clothes sectors, quality control, clothes production, crossbar switch , objective table, curvature measuring, intersections
Chief of the project: prof. V. Kaplun, doctor of technical sciences, Deputy rector
tel. (03822) 2-32 54, fax (03822) 2-32-65
e-mail: kaplun@beta.tup.km.ua

AUTOMATIC BALANCING OF THE ROTARY MACHINES

Scientific direction: mechanical engineering
Specialization: mechanics
Project objective: producing of the device for automatic balancing of the rotary machines.
It is known that the rotar rotation with the frequency that exceeds the first critical (of resonance) is the necessary condition of vibration reduction with the help of autobalancing device. That's why modern autobalancing devices have additional devices, that allow to include working objects into the process only on after-resonance frequencies of rotating. It complicates the autobalancing device construction and prevents them from wide usage. The practice shows that this device can reduce the vibration both on after-resonance and before-resonance frequencies and on the resonance itself. To explain the behaviour of liquid in the equalizer we worked out mathematical model that takes into consideration hydrolic properties of liquid, Pascal's law in particular.
On the basis of the research work the construction of multichamber combined liquid ball-point automatic balancing device was created. Experimental overview of the work effectiveness of the designed automatic balancing device showed that the combined autobalancing device allows to reduce the level of rotar vibrations of the serial machine on the resonance almost in 2-1.5 times on the working rotating frequency.
Key words: balancing, rotar, device
Chief of the project: prof. V. Royzman, doctor of technical sciences, head of Applied Mechanics Department
tel. (0382) 72-87-43, fax (03822) 2-32-65
e-mail: ndc@beta.tup.km.ua

LUBRICANTS ON THE BASIS OF TECHNICAL VEGETABLE OILS
AS RENEWABLE RAW MATERIAL MODIFIED BY CHEMICAL AND PHYSICAL METHODS

Scientific direction: physical and technical problems of materials science
Specialization: chemistry
Project objective: the creation of lubricants on the basis of modified rape oil and other technical oils which can be produced in Ukraine as renewable raw material of required quantity, is characterized by the imperfection of their structure that has negative influence on their trybotechnical features. Thus, the necessary is a special,experimentally determined chemical modification of the oil structures, physical and chemical processing of the modified oils which would change the structure of oils in specified direction: to improve useful properties and trybotechnical characteristics of new modified materials. The prossesses of modification and of physical and chemical treatment are worked out; technological prossesses are made optimal. The properties of products, i.e. of basic components and of lubricant compositions on its basis, are well-studied.
The samples of transmissive and industrial lubricants, of hydraulic liquids, plastic lubricants, cooling mixtures (emulsol of lubricative paste) for mechanical metal processing are received.
Sphere of usage: machine-building.
Advantages: the offered lubricants are ecologically clean products absolutely safe for those working with them.
Key words: turnip oil, processes of chemical updating, physical and chemical processing, base components, transmission and industrial oils, hydraulic liquids, oil cooling liquids, plastic oils.
Chief of the project: V.Kyrychenko, assistant professor, senior scientific collaborator, candidate of chemical sciences
tel. (0382) 72-80-92, fax (03822) 2-32-65
e-mail: ndc@beta.tup.km.ua

SYSTEM OF DESIGN - EXPERIMENT METHODS OF EVALUATING TRIBOTECHNICAL RELIABILITY OF CONSTRUCTIONS

Scientific direction: mechanical engineering
Specialization: mechanics
Project objective: designing the reliable, competitive mechanical engineering production by means of improving and creating scientifically proved, high-tech and economically effective methods of project calculations on triboreliability.
    The following was worked out:
  • Method of wear testing on the scheme of sphere-square with model parameters determination. The system of design-experiment methods for defining tribotechnical characteristics of materials for different schemes of testing for single and multi-factor is worked out.
  • Scholastic model of objects wearing on the basis of mathematical theory of reliability for reserve systems and for Markov processes with continuous and discontinuous time. The model of wearing of the frictionless bearing (direct pair) and the structure of the method of computer modeling of the process of wearing.
  • Analytical approaches to defining the main parameters of surface profiles after surface-plastic treatment with the aim of raising lubricating ability.Design-experiment methodology for the determination and certification of main tribotechnical properties of lubricants on the basis of four-ball friction machine.
The practical value of these scientific results lies in the capability to save the material, energy and labour resources by the reduction of tests and experimental researches while designing the tribosystems.
Key words: triboreliability, evaluation, mechanical engineering
Chief of the project: prof.A. Kuzmenko, doctor of technical sciences, head of Wearing Quality and Machine Reliability Department
tel. (0382) 72-81-82, fax (03822) 2-32-65, private tel. (0382) 76-23-50
e-mail: ndc@beta.tup.km.ua

ANTIFRICTIONAL CARBOPLASTICS AND TECHNOLOGY OF THEIR PRODUCTION

Scientific direction: physical and technical problems of materials science
Specialization: chemistry
Project objective: designing the technology of production of compositional material of high wearing quality.
Anti-frictional material flubon is a polymeric composite material on the basis of polytetrafluorineethylene, sopolymers of ethylene and tetrafluorineethylene and other fluorine-containing polymers, modified carbon fibres and other fibre and dispersed stuff.
The optimal complex of compositional material properties is defined by: stuff dispersion, equality of its destribution in polymeric matrix and by the character of the interaction between the stuff and the polymer. The technology of production of anti-frictional carboplastics flubon includes such stages: composition preparation, pressing and thermo-processing of the material.
Flubon is described by high wearing quality and chemical resistance, low friction index. Details of flubon material are used in the joints of friction of technological equipment of different designation: sleeve bearings, packing rings, end seals, separators of rolling contact bearings and journal bearings. In this case higher durability and reliability of the equipment, saving of lubricating materials is assured. Also increased chemical resistance, reduction of metal consumption as well as reduction of expenditures on the repair and maintenance of machinery, and on the regeneration of catalysts for chemical production are ensured.
Sphere of usage: machine-building, stations of high pressure on pumping oil and gas, chemical equipment.
From the point of view of durability, flubon seals exceed such materials of the Russian firms as ftorlon – 4, Ô4Ê20, Ô4Ê20-1, ÀÔÃÌ-5Ì,Ô4Ñ15, ÀÃ1500Ñ05.2Ï-1000, carpolon-B by 3-10 times. They also exceed the materials of foreign firms such as “Garlock”, :Merkel”, :Dixon”, “Inelard” by 3-5 times. The technology of products made of flubon without additional mechanical treatment has been worked out.
Key words: antifrictional material, wearing quality, chemical resistance, technological equipment.
Chief of the project: prof. V.Sviderskiy, candidate of technical sciences, assistant professor,
tel. (0382) 72-81 82, fax (03822) 2-32-65
V.Kyrychenko, assistant professor, senior scientific collaborator, candidate of chemical sciences
tel. (0382) 72-80-92, fax (03822) 2-32-65
e-mail: ndc@beta.tup.km.ua

HIGHLY EFFECTIVE POWER PLANTS, MACHINES, ENGINES AND TRANSMISSIONS
WHICH USE IMPULSE, RESONANCE, AUTO OSCILLATING, SELF-EXCITATING AND OTHER PROCESSES

Scientific direction: mechanical engineering
Specialization: mechanical engineering
Project objective: designing of highly effective power- plant machines, engines and transmissions.
In vibration machines, where impulsive forces act in horizontal surface, the capability to rise the dynamic rate (from 5 to 13,45) appears with the help of rearrangement of mass, inertial and rigid characteristics, and also the capability to provide with highly effective, wave processes with wide mode rang.
This rearrangement and plainness of the construction allow to increase the productivity and cut the cost of technique and appropriate technology.
Key words:extreme effects, wave processes, elastic elements, mode range, high effectiveness, low cost
Chief of the project: O. Petrov, candidate of technical sciences, assistant professor of Engineer Graphics Department
tel. (0382) 72-88-25, fax (03822) 2-32-65
e-mail: ndc@beta.tup.km.ua

DEVICE FOR STAMPING WITH TORSION

Scientific direction: mechanical engineering
Specialization: mechanical engineering
Project objective: creation of the device for torsion stamping of thin details.
The device is designed for stamping with instrument rotation on the presses with progressive movement of cross-head. The main field of usage of asymmetrical details stamping with high diameter-to-height ratio (D/h]10).
The device consists of mechanical part and hydraulic system. It has overall dimensions close to the stamp. The usage is rational on the presses with high operating run (hydraulic, spiral). The device provides the reduction of efforts for deforming and improvement of mechanical features of the products.
Key words:stressed and deformed state, stamping with instrument rotation, opened and closed stamp, thin-walled cone details.
Chief of the project: V. Marchenko, candidate of technical sciences, assistant professor of ISM Department
tel. (0382) 72-80-94, fax (03822) 2-32-65
e-mail: ndc@beta.tup.km.ua

TECHNOLOGY OF SYNTHESIS OF FILM POLYMERIC SHELLS IN ELECTROMAGNETIC FIELD

Scientific direction: physical and technical problems of materials science
Specialization: mechanical engineering
Project objective: designing the technology of synthesis of film polymeric shells of specified air penetration in electromagnetic field.
The method was created with correspondent technology of pores in polymeric films . It lies in the following: non-pore film is put between two bars of working installation chamber and is heated for certain time until plastic state with the following instant "vacuum hit" which leads to the partial morphological destruction of the heated film, i.e. to the appearance of the through pores which duplicate the size and shape of the cell bars.
The received results show that with the polyethylene film thickness of 0,06 mm by changing chamber temperature, time of sample heating and vacuum hit magnitude, the porous materials of required air penetration can be received.
Key words: polymeric shell, SHF-heating, vacuum hit, pores, penetration
Chief of the project: prof. A. Mychko, professor of Leather and Needle Products Technology Department
tel. (0382) 72-86-55, fax (03822) 2-32-65
e-mail: ndc@beta.tup.km.ua

METHOD OF ESTIMATING THE HEATPROOF FEATURES OF MATERIALS FOR WORKING CLOTHES

Scientific direction: instrument-making
Specialization: light industry
Project objective: working out of the method and creation of the equipment for measuring heat-resistance and heat-transmission in the materials under the influence of certain source of high temperature on them.
The measuring of heat-resistance is conducted by means of making mechanical pressure on the reverse side of the sector which experiences the influence of heat medium and simultaneous measuring of time and temperature of material destruction. The measuring of material heat transmission is conducted under the influence` of the same source of high temperature on the sample for certain time by means of temperature and heat flow measuring on the reverse side of the sample. The device for the realization of the methods includes: thermal, measuring and calculating blocks.
Awaited results: designing of the method of reliable measuring of heat-resistant features of materials for working clothes.
Key words:method, heat-shielding properties and heat-resistance, heat-transmission, materials for working clothes.
Chief of the project: O. Sarana, candidate of technical sciences, assistant professor of Department of Leather and Needle Products Technology
O. Troyan, candidate of technical sciences, assistant professor of Department of Leather and Needle Products Technology
O. Lyubin, candidate of physical and mathematical sciences, assistant professor of Higher Mathematics Department
O. Zasornov, mechanical engineer
tel. (0382) 72-86-55, fax (03822) 2-32-65
e-mail: ndc@beta.tup.km.ua

MEASURING SYSTEM OF MONITORING OF MAIN CABLE LINES

Scientific direction: energetics and energy saving
Specialization: : instrument-making
Project objective: designing the system for measuring and control of main cable lines and creation of electronic data base on the basis of parameters of communication cable lines .
Methods of measuring: resonnaissance of lines with impulse signal, optimal method with correlation processing, narrow band signal with rectangular spectrum loop, that gives the opportunity to optimize the measuring according to the working range of lines.
Measuring of electric parameters with the help of high-frequency digital converters made on the basis of modern programmed Altera logical schemes. Information accumulation and processing by portable computers, wide functional possibilities. Programmed logical schemes allow flexibly to change the inner structure of microcircuit at minimal size and energy consumption. The variants of device usage with minimal functional possibilities are possible, and the measuring of the distance to the first line defect (break, short circuit) in particular.
Events being called by the project:
1. Realization of laboratory sample on the elementary basis possessed by executive;
2. Revision of the scheme of measuring device and creation of research sample;
3. Final revision of the device scheme.
As the result of the project realization the compact, highly effective device for monitoring of main cable lines will be produced .
Key words: distance to defect, impulse method of distance measuring, narrowlined signals with square spectrum, programmed logical schemes.
Chief of the project: V.Lyubchyk, candidate of technical sciences, assistant professor of CREM Department.
tel. (0382) 72-88-74, fax (03822) 2-32-65
e-mail: ndc@beta.tup.km.ua

© TECHNOLOGICAL UNIVERSITY OF PODILLYA