scholarly journals THE INFLUENCE OF TECHNOLOGICAL PARAMETERS OF THE EXTRUSION PROCESS AND TECHNICAL PARAMETERS OF AN EXTRUDER WITH ELASTIC SCREW ELEMENTS ON THE EXPANSION INDEX OF THE EXTRUDATE

2020 ◽  
pp. 97-104
Author(s):  
Dmytro Kondratyuk ◽  
Victor Dmitrenko
Keyword(s):  
Extrusion Process ◽  
Cellular Level ◽  
Experiment Planning ◽  
Technological Parameters ◽  
Technical Parameters ◽  
Complete Absorption ◽  
Frictional Forces ◽  
Section Structure ◽  
High Pressure Zone ◽  
Thermoplastic Properties

The processing of feed by extrusion improves the level of absorption by animals. In the extruder, due to frictional forces, the grain mass is heated to a temperature of 120 ... 150 ° C and acquires thermoplastic properties. Due to the transition of the heated mass from the high-pressure zone to the atmospheric zone, adiabatic expansion occurs, as a result of which the volume of the extrudate increases due to the destruction of the granular structure of starch at the cellular level. The extrudate acquires a microporous structure, which contributes to a more complete absorption of nutrients by the animal body. The purpose of the work is to determine the rational values of the factors that most significantly influence the extrusion process and to evaluate the degree of their influence on the extrusion index of the grain mixture of cereals. The studies were performed using a sample of the model extruder section structure, the coils of the screw extruder can oscillate along its axis. A blend of corn, barley and winter wheat in a 5: 3: 2 ratio was used as the study object. The effect of the extruder parameters and modes on the extrudate expansion index was studied using the multivariate experiment planning method. The extrudate expansion index was defined as the ratio of the extrudate diameter to the diameter of the die. To study the process, the following factors were selected that most significantly influence the extrusion process and the extrudate expansion index: die diameter X1 (d, mm), relative humidity of the grain mixture X2 (W,%) and temperature of the extrusion process X3 (T, 0C). The levels of variation of the factors were as follows (initially recorded the zero level of factors, and after the interval of variation): X1 (6; 2 mm), X2 (16; 4%) and X3 (135; 25 0C). As a result of the conducted researches the following rational parameters and modes of operation of the extruder were established: diameter of die d = 4.9… 5.9 mm; humidity of grain mixture W = 17,7… 20%; the temperature of the extrusion process T = 140… 145 0C, and a die diameter of 4.9 ... 5, 9mm.

scholarly journals Optimization of tablet formulation containing ginger dry extract

2020 ◽  
Vol 33 (2) ◽  
pp. 90-93
Author(s):  
Walid A.A. Malek ◽  
Olena Anatoliivna Ruban ◽  
Olga V. Kutova ◽  
Nataliia A. Herbina
Keyword(s):  
Tablet Formulation ◽  
Regression Equations ◽  
Diabetes Treatment ◽  
Optimal Composition ◽  
European Pharmacopoeia ◽  
Technological Parameters ◽  
Mathematical Methods ◽  
Dry Extract ◽  
Technical Parameters ◽  
Effective Drugs

AbstractIntroduction. Diabetes mellitus is one of the world’s most common diseases, therefore the development and introduction of new effective drugs for diabetes treatment into clinical practice is an important task for the health systems of many countries of the world.Aim. The aim of our work was to determine and substantiate the quantitative ratio of excipients for the development of the optimal composition of directly compressible ginger dry extract tablets.Materials and methods. To choose the optimal composition of tablets containing ginger dry extract, the effect of various quantitative ratios of the excipients Kollidon K30 and Neusilin UFL 2 on tablet mass pharmaceutical technical parameters, determined by established methods, was studied. For processing the experimental data, mathematical methods were used: design of experiment, regression analysis and a technique based on the theory of vector optimization.Results. The interrelation between factors that were studied and technological parameters of tablet mass and compressed tablets were analyzed using regression equations.Conclusions. The studies conducted allowed to chose the optimal composition of ginger dry extract tablets: ginger dry extract – 60%, Galen IQ 721 – 34.5%, Kollidon K30 – 3.5%, Neusilin UFL 2 – 1%, calcium stearate – 1%. The chosen tablet formulation is characterized by pharmaceutical technical parameters meeting the requirements of the European Pharmacopoeia and the State Pharmacopoeia of Ukraine.

scholarly journals THE STUDY OF TECHNOLOGICAL PARAMETERS OF PECTIN CONTAINING RAW MATERIAL PROCESSING IN THE VEGETABLE-MILK FORCEMEATS TECHNOLOGY

2016 ◽  
Vol 4 ◽  
pp. 29-36
Author(s):  
Grygoriy Deynychenko ◽  
Victoriya Gnitsevych ◽  
Tatiana Yudina ◽  
Iryna Nazarenko ◽  
Olena Vasylieva
Keyword(s):  
Material Processing ◽  
Milk Proteins ◽  
Raw Material ◽  
Experiment Planning ◽  
Technological Parameters ◽  
Medium Temperature ◽  
Methods Of Determination ◽  
Vegetable Milk ◽  
Β Carotene

The algorithm of the study that includes theoretical analysis and physical experiment was elaborated for the study of technological parameters of pectin containing raw material processing in the vegetable-milk forcemeats technology. The expedience of using carrot Shantenee, pumpkin Guiley and marrow Zolotinka as the sources of pectin substances in the technology of combined forcemeats on the milk base was grounded. Technological parameters of pectin containing raw material processing for realization of its target properties as an amendment and stabilizer of the structure in milk-vegetable forcemeats technology were theoretically grounded. The methods of determination of soluble pectin and protopectin content and also the methods of determination of рН medium were chosen. The methods of experiment planning and mathematical processing of experimental data were carried out using computer programs MS Excel 97 2003 and MatCAD. The influence of рН medium, temperature and duration of thermal processing of carrot, pumpkin and marrow on the process of accumulation of soluble pectin in them was studied. The formation technology of puree of the vegetables that have the increased viscosity and are not stratified at the storage and further use. Accumulation of soluble pectin that expresses the properties of structure stabilizer and favors the increase of vegetable puree viscosity causes the expedience of its use in milk-vegetable forcemeats technology. The use of vegetable puree in milk-vegetable forcemeats technology allows widen the assortment and provide the mutual enrichment of the receipt components of combined forcemeat masses with milk proteins, β-carotene, food fibers, vitamins and other functional ingredients.

Effect of active action friction forces on technological parameters of backward extrusion

2021 ◽  
pp. 25-33
Author(s):  
B.S. Moroz ◽  
M.G. Dudnik
Keyword(s):  
Extrusion Process ◽  
Technological Parameters ◽  
Deformation Degree ◽  
Friction Forces ◽  
Backward Extrusion ◽  
Deformation Force ◽  
Active Friction Forces ◽  
The Impact ◽  
Experimental Researches ◽  
Experimental And Theoretical Studies

The parameters of deformation degree at theoretical and experimental researches of cold backward extrusion processes of hollow glasses-type products are considered. The dependences of their relationship with the relative degree of deformation and the scale of their conformity are suggested. The published results of experimental and theoretical studies on the impact of technological parameters of the backward extrusion process of hollow products in the conditions of active friction forces to reduce the deformation force and stress-strain state of the billet are analyzed. Insuffi ciently studied features of the process and the possibility for expanding of the application fi eld of the backward extrusion method with the active action of friction forces are noted. The method for calculating of the deformation rate required to determine the current stress in the implementation of the hot backward extrusion process.

Investigation of the Effects of Technological Parameters on Surface Roughness in Extrusion Bars of Aluminum Alloy

2019 ◽  
Vol 889 ◽  
pp. 155-160
Author(s):  
Trong Mai Nguyen ◽  
Đuc Quy Tran ◽  
Van Nghe Pham ◽  
Van Canh Nguyen
Keyword(s):  
Surface Roughness ◽  
Aluminum Alloy ◽  
Surface Quality ◽  
Research Work ◽  
Extrusion Process ◽  
Optimal Parameters ◽  
Technological Parameters

In this research work, the result of the effects of technological parameters on surface roughness in extrusion bars of aluminum alloy were pesented. The results of this study may be used for choosing optimal parameters of extrusion process so that surface quality of extruded bar was improved.

scholarly journals Technical considerations on the 3D printing components with DLP 3D printing process with ecological resin

2020 ◽  
Vol XXIII (1) ◽  
pp. 34-40
Author(s):  
Mircea Dorin Vasilescu
Keyword(s):  
3D Printing ◽  
Control Programme ◽  
Point Of View ◽  
Technological Parameters ◽  
Technical Parameters ◽  
Dimensional Measurement ◽  
Organic Resin ◽  
And Control ◽  
Measurement And Control ◽  
Technical Considerations

The purpose of this work is to analyse the technological aspects of the realization of components by 3D printing for the production of plan parts for experimental devices or stands. The author of this work envisages the realization of flat elements to which it can be determined how the organic resin material behaves when printing 3D with additive DLP technology. The work is structured in 5 chapters. In the first chapter, an analysis of how to make the plan elements by the additive DLP technology specific to the experimental programme adopted in this paper. The analysis will be carried out both constructively and functionally taking into account possibilities for designing components and making them. Chapter two is allocated to ordering technological parameters for 3D printing generation of parts defining the main technical parameters for generating them with ecological resin. The next chapter is allocated to analysing how to carry out the printer command program and check the structure of the element. In the four chapter, the dimensional measurement and control programme with dimensional and optical is presented. The last chapter is allocated to conclusions and comparisons from a technological point of view compared to other specific technologies for generating the analysed elements.

scholarly journals Cultivation of the Targeted Forest Plantations

2020 ◽  
Vol 8 (4) ◽  
pp. 1385-1393
Keyword(s):  
Parameters Optimization ◽  
Energy Costs ◽  
Energy Reserves ◽  
Technological Parameters ◽  
Additional Energy ◽  
Energy Effect ◽  
Technical Parameters ◽  
Effect Model ◽  
Forest Use ◽  
The Cost

Targeted reforestation refers to ecosystems with natural and artificial energy reserves. Additional energy reserves are spent on grow-ing and harvesting, various types of forest care, forest use, and delivery of products to consumers, including energy costs for all types of preparation. The wood to be harvested must be assessed on the energy consumption required for its production. The purpose of this work was to develop a comprehensive methodology to assess the energy effect, model the process of plantation operation considering the soil type, tree species, and technical parameters of operating machines. According to the estimation results of the trunk wood energy value, it has been established that depending on the growth rate and maturity level, the target plantations are divided into two types, which should be taken into account during planting and subsequent rotation. It is shown that with regard to the technological features of machine sys-tems and the type of plantation, it is necessary to consider dimensional characteristics of the planting scheme and the technological cycle of exploiting the forest plantation. The results of mathematical modeling following the technological parameters of operating machines and all types of costs showed that the cost of the selected target species for reforestation can provide sufficient profit when optimizing the machine system operations. The principle of modular division of machines system on power, technological, and transport modules is offered, which vary in purpose, criteria of parameters optimization, and indicators of work. The obtained mathematical model and meth-odology of target planting optimization can be applied in forestry and agricultural complexes, as well as become the basis for further research in this direction.

scholarly journals A Study on the Effects of Technical Parameters on the Tensile Strength of Bamboo Plywood

2020 ◽  
Vol 207 ◽  
pp. 05004
Author(s):  
Svetlin Antonov ◽  
Nguyen Thanh Nam ◽  
Tran Trong Hy ◽  
Le Khanh Dien
Keyword(s):  
Tensile Strength ◽  
Raw Materials ◽  
New Product ◽  
Economic Benefits ◽  
Technological Parameters ◽  
Technical Parameters ◽  
Bamboo Pulp ◽  
Urgent Task ◽  
Natural Wood ◽  
By Products

The application of bamboo by-products such as bamboo branches, chips to recycle and produce pressed bamboo pulp is an urgent task in Vietnam. It perfectly replaces natural wood with artificial wood embryos from bamboo powder, which has both economic benefits of reserving the source of raw materials, environmental protection The paper presents a study on the influence of technological parameters on the tensile strength of pressed bamboo plastic fiber that is a new product of a project of our laboratory.

Research on Technics of Laser Direct Metal Deposition Forming Technology

2009 ◽  
Vol 69-70 ◽  
pp. 54-58
Author(s):  
Wei Zhang ◽  
Jian Hua Yao
Keyword(s):  
Laser Power ◽  
Scanning Speed ◽  
Metal Deposition ◽  
Direct Metal Deposition ◽  
Solidification Velocity ◽  
Technological Parameters ◽  
Technical Parameters ◽  
Forming Technology ◽  
Average Hardness ◽  
Feeding Speed

The technological parameters of laser direct metal deposition (DMD) were researched by DMD forming experiments using 2Cr13 powder. Fixing other parameters, the lower of laser power, the smaller the characteristic sizes of cladding layer are. Increasing of laser power, cladding height would firstly increase and then decrease, cladding width would firstly increase and then almost maintain constant, while cladding depth would gradually increase. When other parameters are invariable, with increasing of powder feeding speed, cladding height would increase, cladding width and cladding depth would decrease. When other parameters are invariable, cladding width, cladding height and cladding depth would decrease with the adding of scanning speed. The microstructure of single track cladding had three typical patterns, cellular dendritic, column dendritic and equiaxed crystal. The patterns depended on the temperature gradient and the solidification velocity. Under different technical parameters, the average hardness of specimens would change from 300HV0.2 to 550HV0.2.

COMPREHENSIVE INVESTIGATION OF EXTRUSION OF П-SHAPED BRACKETS. REPORT 6. KINEMATIC AND STRESSED STATES OF BLANKET DURING RESTRICTED EXTRUSION. PART 4

2021 ◽  
pp. 51-54
Author(s):  
A. L. Vorontsov ◽  
◽  
S. M. Karpov ◽  
Keyword(s):  
Plastic Flow ◽  
Geometric Parameter ◽  
Plane Deformation ◽  
Flow Theory ◽  
Equation System ◽  
Extrusion Process ◽  
Technological Parameters ◽  
Comprehensive Investigation

On the basis of the complete equation system of the plastic flow theory, the solution of the determination problem of the kinematic and stressed states of a blanket during completely restricted extrusion of П-shaped brackets under the conditions of plane deformation in the general case of a nonaligned placement of the punch and the die is stated. The determination of the force and geometric parameter of the process was carried out. The formulae were obtained, which are required for determination of the main technological parameters of the extrusion process of П-shaped products with a relatively thin horizontal bridge.

PUNCHING CUPS WITH BOTTOM FLANGE BY DIRECT EXTRUSION WITH COUNTER-PUNCH. METHODOLOGY FOR CALCULATING TECHNOLOGICAL PARAMETERS FREE EXTRUSION PROCESS

2020 ◽  
pp. 17-24 ◽  
Author(s):  
A. L. Vorontsov ◽  
I. A. Nikiforov
Keyword(s):  
Yield Stress ◽  
Extrusion Process ◽  
Maximum Pressure ◽  
Bottom Flange ◽  
Technological Parameters ◽  
Hardening Material ◽  
Direct Extrusion ◽  
Deformation Parameters ◽  
The Matrix ◽  
Deforming Forces

The methodology for calculating the energy and deformation parameters of the processes of free extrusion of glasses with a counter-punch is described. Extrusion of both non-hardening and hardening material is considered. In the latter case, accounting for the hardening of the extruded material is described in detail. The above formulas allow us to determine such important parameters of the stamping process as the total and specific deforming forces, maximum pressure on the matrix wall, and increase in yield stress.

Sign in / Sign up

Export Citation Format

Share Document