scholarly journals The Importance of TDA Thermal Analysis in an Automated Metallurgical Process

2021 ◽  
Vol 5 (4) ◽  
pp. 89-93
Author(s):  
Łukasz Petrus ◽  
Andrzej Bulanowski ◽  
Jakub Kołakowski ◽  
Jakub Sobieraj ◽  
Tomasz Paruch ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Chemical Properties ◽  
Melting Furnace ◽  
Casting Process ◽  
Development Project ◽  
Modern Technology ◽  
Innovative Technology ◽  
High Quality ◽  
Work Related

The article presents the results of research and work related to the implementation of the research and development project POIR.01.01.01-00-0120/17 co-financed by the EU, through the NCBR, entitled: Innovative technology using thermal analysis, TDA, of self-feeding manufacturing of high-quality cast iron to produce new generation, enhanced performance casts. In many foundries, thermal derivative analysis (TDA) is used in addition to chemical analysis to evaluate the physical and chemical properties of an alloy while it is still in the melting furnace or ladle and before it is poured into the mold. This fact makes it possible to improve the metallurgical quality of the alloy by introducing alloying additives, carburizers or modifiers into the furnace as part of the pre-modification or primary or secondary modification in the ladle or when pouring into molds. Foundry machinery (modifier dosing systems and spheroidizing station) is very important in these operations. Only the full synergy of modern equipment with modern technology ensures high quality and repeatability of the casting process. The article mainly discusses the obtained parameters of TDA analysis (with the use of the ITACA system) at different stages of melting and how to improve them by using modern and fully automated dosing systems (Itaca OptiDose, ItacaWire and ItacaStream). Special attention was paid to the minimum temperature of the eutectoid. The change of its value after the modification process, its influence on the quality of the melted metal, a very strong correlation with the number of nuclei and the number of graphite precipitations in the casts were shown.

scholarly journals Characterizing the Rheological and Bread-Making Properties of Wheat Flour Treated by “Gluten FriendlyTM” Technology

Foods ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 751
Author(s):  
Carmela Lamacchia ◽  
Loretta Landriscina ◽  
Carla Severini ◽  
Rossella Caporizzi ◽  
Antonio Derossi
Keyword(s):  
Aqueous Solution ◽  
Wheat Flour ◽  
Sensory Quality ◽  
Pasting Properties ◽  
Innovative Technology ◽  
High Ability ◽  
Bread Making ◽  
High Quality ◽  
Gluten Proteins

After discovering an innovative technology for the reshaping of gluten proteins—the “Gluten FriendlyTM” system—that confers to wheat flour some unprecedented characteristics, such as reduced epitope antigenicity and a positive modulation of the gut microbiota, its effects on the production and quality of bread have been studied. Mainly, we have investigated the chemical, rheological and pasting properties of Gluten Friendly Flour (GFF) and of control flour (CF) with the aim of analyzing and interpreting potential differences. Furthermore, the bread made from GFF and CF was evaluated in terms of microstructure properties and sensory quality. The experiments demonstrated that GFF became soluble in aqueous solution, making it unfeasible to isolate using the Glutomatic apparatus. Although the water absorption of GFF increased by 10% compared to CF, dough elasticity was reduced, and dough stability decreased from 5 to 2 min. A significant increase in the alveograph index (P/L) from 0.63 to 6.31 was detected, whereas pasting properties did not change from the control flour. Despite these profound modifications in the rheological properties, GFF exhibited a high ability to shape dough and to produce bread with high quality and negligible differences from the control bread in terms of appearance, taste, aroma, color and texture.

scholarly journals Physico-Chemical Properties of Biodiesel Produced from Neem Oil

2015 ◽  
Vol 47 ◽  
pp. 40-48 ◽  
Author(s):  
Prithviraj Bhandare ◽  
G.R. Naik
Keyword(s):  
Social Factors ◽  
Chemical Properties ◽  
High Viscosity ◽  
Hydroxyl Groups ◽  
Seed Oils ◽  
Neem Oil ◽  
Chemical Parameters ◽  
High Quality ◽  
Physico Chemical

Biodiesel is becoming prominent among the alternatives to conventional petro-diesel due to economic, environmental and social factors. The quality of biodiesel is influenced by the nature of feedstock and the production processes employed. High amounts of free fatty acids (FFA) in the feedstock are known to be detrimental to the quality of biodiesel. In addition, oils with compounds containing hydroxyl groups possess high viscosity due to hydrogen bonding. American Standards and Testing Materials, (ASTM D 6751) recommends FFA content of not more than 0.5% in biodiesel and a viscosity of less than 6 mm2/s. In this experiment the seed oils of 30 Neem (Azadirachta indica. A. juss) biotypes were screened and evaluated for their physico-chemical parameters for their potential in biodiesel. The properties of Neem biodiesel were compared with Bureau of Indian Standards (BIS) and the fuel properties of diesel. Results showed that high amounts of FFA in oils produced low quality biodiesel while neutralized oils with low amounts of FFA produced high quality biodiesel. The quality of biodiesel from jatropha and castor oils was improved greatly by neutralising the crude oils.

Development of Generation Technology of High Quality Semi-Solid Slurry by Double-Axis-Electromagnetic Stirrer Combined with Properly Designed Cup

2012 ◽  
Vol 192-193 ◽  
pp. 441-446
Author(s):  
Masayuki Itamura ◽  
Koichi Anzai ◽  
Naoya Hirata ◽  
Shinichi Shimaski ◽  
Takuma Maeda
Keyword(s):  
Magnetic Field ◽  
High Speed ◽  
Low Cost ◽  
New Technology ◽  
Casting Process ◽  
Rotating Magnetic Field ◽  
High Quality ◽  
Semi Solid ◽  
Cup Design

For the semi-solid casting process it is very important to make high quality slurry with high speed and low cost. Recently the double-axis-electromagnetic stirrer is developed as the slurry-making tool. This stirrer has rotating magnetic field (RMF) and linear traveling magnetic field (TMF). This new technology shows several advantages in the quality of slurry. The cup design is also important to make uniform quality slurry. In this paper the new stirrer and its advantages from test report and technology of cup design is introduced.

A Novel Squeeze Casting Process for Producing Magnesium Wheels

2007 ◽  
Vol 546-549 ◽  
pp. 113-118 ◽  
Author(s):  
Shao Yong Xu ◽  
Si Yuan Long ◽  
Fen Ge Li
Keyword(s):  
Molten Metal ◽  
Squeeze Casting ◽  
Casting Process ◽  
Al Alloys ◽  
High Quality ◽  
Process Characteristics ◽  
New Process ◽  
Vehicle Components ◽  
Squeeze Casting Process

This paper analyzes the casting process characteristics of Mg alloys compared with Al alloys in the production of high quality (i.e. structural) structural vehicle components. The disadvantages of traditional squeeze casting for high quality Mg components has led the authors to develop a novel squeeze casting process which overcomes the drawbacks of the current methods. The details of the new process are presented here and show the increased productivity and quality of castings that can result from changing the way molten metal is handled and processed. The feasibility of this new squeeze casting process was applied to Mg wheels for LX150 motorbikes.

Prevention of Shoulder Injuries in Sonographers: A Systematic Review

2019 ◽  
Vol 35 (5) ◽  
pp. 392-399
Author(s):  
Thamer Abdullah Alshuwaer ◽  
Frances Gilman
Keyword(s):  
Quality Of Services ◽  
Shoulder Injuries ◽  
Review Of Literature ◽  
Shoulder Injury ◽  
High Quality ◽  
Work Related ◽  
The Past ◽  
Work Related Musculoskeletal Disorders ◽  
Workspace Design

Shoulder injury and pain are the most commonly reported work-related musculoskeletal disorders (WRMSDs) among sonographers. Shoulder injury can affect the sonographer’s performance, which may lead to a reduction in the quality of services to patients. Therefore, sonographers must protect themselves from shoulder injury to provide high-quality services, work efficiently, conserve their future career, and improve their quality of life. A review of literature was conducted, revealing evidence to suggest ways to prevent various injuries to sonographers, but only a few studies in the past 10 years have focused specifically on shoulder injury. Good posture, ergonomics, and suitable workspace design play important roles in reducing the rates of shoulder injury. In addition, increasing the sonographer’s awareness of how to prevent shoulder injury and the supervisor’s knowledge about the protection from WRMSDs can decrease the rates of shoulder injury among sonographers.

The role of thermal analysis in the evaluation of impure clay deposits as mineral raw materials

Clay Minerals ◽  
1969 ◽  
Vol 8 (2) ◽  
pp. 171-192 ◽  
Author(s):  
J. A. Bain ◽  
D. J. Morgan
Keyword(s):  
Thermal Analysis ◽  
Raw Materials ◽  
Chemical Properties ◽  
High Alumina ◽  
Clay Deposits ◽  
Effect Of Impurities ◽  
And Control ◽  
Physical And Chemical

Although Thermal Analysis is a useful technique in characterizing the clay constituent of a potentially valuable clay deposit, it is, perhaps, even more useful when the type and amount of non-clay impurities are important factors in its commercial appraisal. The effect of impurities on the physical and chemical properties of the clay may determine its potential uses in bulk, or it may be advisable to remove the impurity, either to improve the grade and quality of the clay or to provide a useful by-product. The application of both qualitative and quantitative thermal data, in the analysis and control of laboratory work in this field, is demonstrated by its use in the assessment of materials such as evaporite-rich clays, siliceous clays, and high-alumina clays.

Research on High-End Showcase Design Method of China Market - Based on the Reality Project of Kessebohmer High-End Showcase Design

2014 ◽  
Vol 988 ◽  
pp. 755-758
Author(s):  
Cheng Liu ◽  
Xin Fu Zhu ◽  
Chun Mao Wu
Keyword(s):  
Design Method ◽  
Modern Technology ◽  
Chinese Market ◽  
High Quality ◽  
Color Design ◽  
China Market ◽  
Quality Material

To Chinese market showcase of luxury, analyzes some problems existing in high-end showcase: the excessive pursuit of luxury but lack of connotation. At the same time, it is not very good to show luxury-collection's quality of beauty, the lack of modern, technology sense of luxury. On the basis, the methods of how to combine “the sense of luxury” with “high-end showcase design” were discussed: The implicit culture of Chinese Charm into the design, the image design of classical elements of China. The sense of high-quality material in details reflects the luxury. Overall lighting and color design. The sense of luxury comes from modern technology, etc. Hope to be able to offer some support to the design of Chinese high-end luxury showcase.

scholarly journals Development of technology for the hemp stalks preparation

2019 ◽  
Vol 10 (7) ◽  
pp. 687 ◽  
Author(s):  
Viktor Sheichenko ◽  
Ihor Marynchenko ◽  
Ihor Dudnikov ◽  
Mykola Korchak
Keyword(s):  
Weather Conditions ◽  
Short Fiber ◽  
Modern Technology ◽  
Water Pump ◽  
Resource Saving ◽  
High Quality ◽  
Process Implementation ◽  
Main Factors ◽  
Harvesting Stage

Getting high-quality trusts in modern technology for growing technical hemp is one of the most labor-intensive processes.The main factors that cause loss of quality of hemp are determined by the level of perfection of the harvesting stage of the production process. It is precisely at this stage that the basic processes of product quality management are concentrated, the main physical and technological losses are taking place.The main drawbacks of the known methods of obtaining the trusts of technical hemp include the dependence of the process of forming its qualitative indicators on weather conditions, the unevenness of the separation and strength of the fiber on the entire mass of the sent layer, the length of the technological process, which determines the quantitative loss of production.The article presents the results of research on the development of resource-saving technology for the production of technical hemp trusts due to the addition of an outlet with improved water drains with reeds and finger-wheels and the direct effect of their constructive parameters on the quality indicators of the trust.Mechanized technological processes are carried out thanks to the developed unit, which includes: a modernized corrugated water pump, hay rakes and a roll baler.It was noted that an increase in the number of mechanical influences on the hemp strap ribbon leads to a corresponding decrease in its height and mass. The loosening process reduces the weight of the tape to 2.1 kg per linear meter. Under these conditions, the height of the windrow increases to 35.0 cm. Techniques for obtaining a hedge trustee make it possible to reduce the time of process implementation at the initial stages of its preparation for primary processing, intensifies the process of purification due to the additional mechanical drive with improved aggregates. The short fiber obtained from the hemp trust for the technology developed meets the existing requirements.

scholarly journals Technology and Theory of Mechanically Activated Water in Bakery Industry

2022 ◽  
Vol 51 (4) ◽  
pp. 768-778
Author(s):  
Sergey Rudnev ◽  
Tatyana Shevchenko ◽  
Yulia Ustinova ◽  
Roman Kryuk ◽  
Viktor Ivanov ◽  
...  
Keyword(s):  
Surface Tension ◽  
Shear Stress ◽  
Biological Activity ◽  
Mechanical Energy ◽  
Maximum Shear Stress ◽  
Chemical Properties ◽  
High Quality ◽  
Water Binding ◽  
Physico Chemical

Introduction. Bakery products are an important part of traditional Russian menu. Activated water helps to improve the quality of flour products. The present research objective was (1) to activate water with mechanical energy to change the physicochemical properties of the dough; (2) to evaluate the energy efficiency of the new technological process, and (3) to determine the quality indicators of bread. Study objects and methods. The research featured high quality wheat flour, drinking water, and pressed baking yeast (Saccharomyces cerevisiae). Standard research methods were used to assess the physical and chemical properties of water, namely acidity index (pH), surface tension coefficient, and biological activity. The physico-chemical properties of the dough were studied by maximum shear stress and adhesion. Results and discussion. The samples of activated water demonstrated the following technological properties. Its acidity due decreased as pH fell down to 6.05. With a total mixing time of 10 min, the surface tension decreased by about 10%; after 5 min, it decreased by 4%, while the biological activity of activated water increased by 1.5 times. Mechanically treated water used for bread production contributed to the overall energy saving during kneading and increased its water-binding ability. Moisture removal was by 30–40% more intensive than in the control dough sample. Also, the quality of gluten changed as a result of higher shear stress, which gave the experimental dough better forming properties necessary for the production of high-quality bread. The mechanically activated water increased the specific volume of bread from 2.05 to 2.38 cm3/g. Conclusion. The activated water improved the physico-chemical and rheological properties of dough, as well as the main sensory indicators of bread, e.g. porosity and bread crumb elasticity.

scholarly journals Performance Unified Power Quality Conditioner using Instantaneous Reactive Power Theory

2019 ◽  
Vol 9 (1) ◽  
pp. 7537-7540
Keyword(s):  
Power Quality ◽  
Reactive Power ◽  
Focal Point ◽  
Harmonic Distortion ◽  
Modern Technology ◽  
High Quality ◽  
Unified Power Quality Conditioner ◽  
Power Quality Conditioner ◽  
The Impact

The development use power digital tools presents harmonics in the supply system which develops an issue in the high quality of power supplied. Great Power Quality is quite crucial for our everyday use home appliances in both commercial as well as residential fields. Scientists have actually attempted as well as applied several valuable innovation for eliminating all the voltage and also present relevant harmonic incident troubles which consequently enhances the high quality of power provided to the power system. The focal point of this thesis is the execution of control methods like SRF concept as well as immediate power for the procedure of Unified Power Quality Conditioner (UPQC) which is just one of the current modern technology that consists of both collection and also shunt energetic power filter operating at the very same time as well as thus boosts all the present as well as voltage relevant trouble like voltage sag/swell, flicker, and so on at the exact same time and also assists in decrease of Total Harmonic Distortion. Harmonic materials of the resource current has actually been determined as well as contrasted for the various situations to show the impact of harmonic removal circuit on the harmonic settlement quality of AC-DC power supply feeding to nonlinear tons. Simulation results gotten programs that the efficiency of compensator is located to be far better than without compensator.

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