scholarly journals ЕКОНОМІЧНА ЕФЕКТИВНІСТЬ ВИРОБНИЧОГО ВПРОВАДЖЕННЯ ТОРСІОННО-УДАРНОГО РОЗПУШУВАЧА ҐРУНТУ

2012 ◽  
pp. 168-171
Author(s):  
Л. Ф. Бабицький ◽  
В. В. Падалка ◽  
С. В. Ляшенко
Keyword(s):  
Mechanical Properties ◽  
Technological Process ◽  
Physical And Mechanical Properties

Обґрунтована необхідність застосування актив-них розпушувачів для покращання фізико-механічних властивостей ґрунту сільськогоспо-дарських угідь. Наведено результати розрахунківекономічної ефективності використання торсіон-но-ударного розпушувача ґрунту. Підтвердженоекономічну ефективність його виробничого впро-вадження. Експериментально доведено економіюпалива при виконанні технологічного процесубезвідвального обробітку ґрунту машинно-тракторним аґреґатом у складі МТЗ-80 + торсі-онно-ударний розпушувач ґрунту в порівнянні звідомим прототипом. The necessity of use of active soil cultivators forimprovement of physical and mechanical properties offarm lands has been proved. Results of calculation ofeconomic efficiency of use of a torsion and percussivesoil cultivator have been presented. Economic efficiencyof use of torsion and percussive soil cultivator has beenconfirmed. The economy of fuel has been experimentallyconfirmed in the technological process of non-turnaroundsoil tilling by the unit in structure MTZ-80 + a torsionand percussive soil cultivator in comparison with aknown prototype.

Features of Formation of Structure and Physical and Mechanical Properties of Permanent Welded Joints of Low-Alloy Steels by Methods of Adaptive Pulse Control of Energy Parameters of Welding Mode

2018 ◽  
Vol 938 ◽  
pp. 124-131
Author(s):  
Y.N. Saraev ◽  
S.V. Gladkovsky ◽  
A.G. Lunev ◽  
M.V. Perovskaya ◽  
V.M. Semenchuk
Keyword(s):  
Mechanical Properties ◽  
Technological Process ◽  
Welded Joints ◽  
Physical And Mechanical Properties ◽  
Dynamic Strength ◽  
Strength Properties ◽  
Low Alloy Steels ◽  
Dominant Effect ◽  
Energy Parameters ◽  
Alloy Steels

The features of the formation of the structure and physical and mechanical properties of all-in-one compounds of low-alloy steels are studied. It is shown that the quality and strength properties of permanent joints depend on the energy parameters of the technological process of their manufacture. The technological process is accompanied by melting, transfer and crystallization of the weld metal from the melt, which has a dominant effect on the structure, indicators of static and dynamic strength of welded joints. The ranges of welding modes that have the greatest impact on the structural and mechanical properties of the zone of permanent joints in the temperature range from +20 degrees to minus 60 degrees Celsius. The results of the research can be widely used in the practice of repair and installation works of structures of the Northern design, working in conditions of naturally low climatic temperatures.

scholarly journals Modelling the Deformation, Recrystallization, and Microstructure-Related Properties in Metals

Metals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1759
Author(s):  
Jurij J. Sidor
Keyword(s):  
Mechanical Properties ◽  
Technological Process ◽  
Thermomechanical Processing ◽  
Great Influence ◽  
Physical And Mechanical Properties ◽  
Experimental Investigations ◽  
Tuning Parameters

Experimental investigations of the thermomechanical processing (TMP) of metals clearly demonstrate that technological process-tuning parameters have a great influence on the evolution of both microstructure and texture, which determine the chemical, physical, and mechanical properties of metals [...]

scholarly journals Study On Parameters and Operating Modes of the Device for Deseeding Flax in the Field

2021 ◽  
Vol 15 (2) ◽  
pp. 13-18
Author(s):  
V. G. Chernikov ◽  
R. A. Rostovtsev ◽  
S. V. Solov’ev
Keyword(s):  
Mechanical Properties ◽  
Technological Process ◽  
Physical And Mechanical Properties ◽  
Experimental Plant ◽  
Fiber Flax ◽  
Theoretical Substantiation ◽  
Operating Modes ◽  
Harvesting Process ◽  
Flax Seeds ◽  
The Cost

The authors showed that the main technological process in the combined and separate methods of fiber flax harvesting is deseeding or separating the seed part of the crop from the stems. It was confirmed that there is a direct impact of this process success on seed and straw losses, the fiber yield and quality, the heap composition, the labor intensity and energy consumption of flax drying and processing. (Research purpose) To develop a technology for stripping fiber flax with a comb deseeder during harvesting, to study the deseeder’s specifications and operating modes. (Materials and methods) The authors studied the technological process of stripping flax with a comb deseeder. An experimental plant of a comb deseeder was designed. A model of theoretical calculation was proposed based on the physical and mechanical properties of fiber flax and agrotechnical requirements for its harvesting. (Results and discussion) The authors theoretically determined the comb deseeder’s optimal height, operation kinematic mode, stripping cleanliness, the radius of the stripper drum. Laboratory studies were conducted. It was shown that threshing seeds in the field will reduce the loss of flax seeds by 10 per cent and the stem waste due to tangling during the harvesting process – by 18 per cent. It will also reduce the number of harvesting vehicles, personnel, and the cost of product. The authors identified an opportunity to increase productivity by increasing the width of the header grip: for example, the width of a grain harvester header is about 4 meters, and the width of a flax harvester header is 1.52 meters, that is, the productivity of flax harvesting will increase 2.6 times at the same speed, and 3 times at a higher speed. It was possible to eliminate one piece of equipment – a heap separating machine, since the technological operation of heap processing is carried out by a grain harvester. (Conclusions) The authors presented a theoretical substantiation of the comb deseeder’s operating parameters and modes for stripping fiber flax in the field. The authors proposed a model to determine them based on the physical and mechanical properties of flax and agrotechnical requirements for its harvesting.

scholarly journals Dependence of the properties of epoxy foams on the composition

2021 ◽  
pp. 8-10
Author(s):  
M. B. Alikin ◽  
Yu. V. Polyakova ◽  
D. A. Panfilov ◽  
I. M. Dvorko
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Technological Process ◽  
Physical And Mechanical Properties ◽  
Performance Properties ◽  
Wide Range

The features of the technological process of obtaining foams based on epoxy resin are considered. The influence of the concentration of the components of the composition on the physical and mechanical properties and morphology of the resulting materials is studied. The results of the study of the physical and mechanical properties of the developed epoxy foams are presented. The possibility of obtaining foams with a wide range of adjustable performance properties is shown.

scholarly journals Application of waste wood of processing in-dustries in the manufacture of construction materials with specific properties

10.12737/6294 ◽  
2014 ◽  
Vol 4 (3) ◽  
pp. 220-229
Author(s):  
Ветошкин ◽  
Yuriy Vetoshkin ◽  
Яцун ◽  
Irina Yatsun ◽  
Шишкина ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Technological Process ◽  
Construction Materials ◽  
Physical And Mechanical Properties ◽  
Total Production ◽  
Waste Wood ◽  
X Ray ◽  
Wood Processing ◽  
Wood Particles

Currently, the share of wood based materials with specific properties in total production is significant and it is increasing every year. Cre-ation of composite materials based on wood particles with the inclusion of their design of the various components allows to obtain mate-rials with specific properties. The Department of Mechanical wood processing of USFEU de-veloped a design of PLITOTREN material with specific properties (protection against X-ray radiation). The technological process of manufacturing the material is presented, basic physical and mechanical properties of the plate are obtained, and scope of the material, taking into account the specific properties is proposed.

PEMANFAATAN KAYU AKASIA MANGIUM (Acacia mangium Willd) UNTUK MEBEL

2012 ◽  
Vol 4 (1) ◽  
pp. 1
Author(s):  
Djoko Purwanto
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Physical Properties ◽  
Treatment Process ◽  
Acacia Mangium ◽  
Physical And Mechanical Properties ◽  
Wood Fibers ◽  
Test Parameters ◽  
Mechanical And Physical Properties ◽  
Scale Scores

Timber Acacia mangium (Acacia mangium, Willd) for Furniture. The study aims to determine the mechanical and physical properties and the decorative value (color and fiber) wood of acacia mangium with using finishing materials. This type of finishing material used is ultran lasur natural dof ,ultran lasur classic teak, aqua politur clear dof, aqua politur akasia dan aqua politur cherry. After finishing the wood is stored for 3 months. Test parameters were observed, namely, physical and mechanical properties of wood, adhesion of finishing materials, color and appearance of the fiber, and timber dimensions expansion. The results showed that the mechanical physical properties of acacia wood qualified SNI. 01-0608-89 about the physical and mechanical properties of wood for furniture, air dry the moisture content from 13.78 to 14.89%, flexural strength from 509.25 to 680.50 kg/cm2, and compressive strength parallel to fiber 342.1 - 412.9 kg/cm2. Finishing the treatment process using five types of finishing materials can increase the decorative value (color and fiber) wood. Before finishing the process of acacia mangium wood has the appearance of colors and fibers and less attractive (scale scores 2-3), after finishing acacia wood fibers have the appearance of colors and interesting and very interesting (scale 4-5).Keywords: mangium wood, mechanical properties, decorative value, finishing, furniture.

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