Estimation of the Influence of Burnishing Parameters on X5CrNi18-10 Steel

2010 ◽  
Vol 165 ◽  
pp. 300-305 ◽  
Author(s):  
Wojciech Labuda ◽  
Robert Starosta
Keyword(s):  
Angular Momentum ◽  
Research Work ◽  
Electrochemical Corrosion ◽  
Technological Parameters ◽  
Corrosion Resistant ◽  
Pump Shaft ◽  
Force Velocity ◽  
Technological Quality ◽  
Cavitation Wear

Angular momentum pumps are very often applied in ships. Because the pumps are operating in hard conditions they are produced from cavitation wear-proof and electrochemical corrosion-resistant materials. The most common damage of pump shaft is neck wear in place where seals are mounted. Burnishing as modern finish plastic tooling method makes it possible to achieve high technological quality of elements. Due to many burnishing advantages, the method was proposed for treatment of angular momentum pumps shafts instead of finish machining (finish turning, grinding, lapping). The goal was to estimate optimal burnishing parameters that enable obtaining higher strength and the lowest roughness factor of angular momentum pumps shafts. Shaft necks were made of stainless steel type X5CrNi1810. Roller burnishing tool SRMD type produced by Yamato was used in the research work. Its axis was parallel to working shaft axis. During working, technological parameters such as force, velocity and feed were changed.

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.

Technological quality of spring wheat lines at different rainfall levels

2004 ◽  
Vol 52 (2) ◽  
pp. 183-188 ◽  
Author(s):  
M. Gut ◽  
A. Bichoński
Keyword(s):  
Environmental Conditions ◽  
Vegetation Period ◽  
Quality Parameters ◽  
Technological Parameters ◽  
Wheat Varieties ◽  
Gluten Quality ◽  
Technological Quality ◽  
Wheat Lines ◽  
Baking Industry

Due to developments in the food and baking industry, grain quality determines prices and market options to a large extent. The introduction of high quality wheat varieties into cultivation requires not only favourable technological parameters, but also good adaptation to unfavourable environmental conditions. The level of rainfall in Poland during the spring and summer differs greatly from one years to the other, so the varieties introduced into cultivation must be capable of giving high values of quality parameters with both an excess and deficit of rainfall. the aim of the present work was thus to study whether the quantity of rainfall affected the technological traits determining the industrial usefulness of the crop, and if so, in what way. interactions were observed between the evaluated genotypes and the environmental conditions (particular years and locations), which greatly influenced the average level of the technological traits. This was most strongly observed for traits related to gluten quantity and quality. the rainfall level over the whole vegetation period was not correlated with the technological traits examined, while the rainfall measured in May significantly influenced the sedimentation value and water absorption (r= -0.68** and r= -0.54*), which are the traits most strongly related to the gluten quality and rheological qualities of the dough.

The Analysis of Finishing Tooling Influence on Friction Factor Examined by T-05 Tester

2015 ◽  
Vol 220-221 ◽  
pp. 615-620
Author(s):  
Wojciech Labuda ◽  
Adam Charchalis
Keyword(s):  
Friction Factor ◽  
Contact Fatigue ◽  
Electrochemical Corrosion ◽  
Grinding Wheel ◽  
Technological Parameters ◽  
Finish Turning ◽  
Research Results ◽  
Burnishing Process ◽  
Pump Shaft ◽  
Service Conditions

The article presents the research results referring to the analysis of the influence of finish treatment (finishing turning, grinding, burnishing) on the friction factor of steel applied to marine pump shafts. The research was performed on a roller 39 mm in diameter made of stainless steel 304L. The finish tooling of pump shaft pins was carried out on a universal centre lathe. The finish turning process was carried out by means of a WNMG WF 080408 Sandvik Coromant cutting tool with replaceable inserts. The grinding process was performed by grinding attachment for lathes. The 1 – 80×10×32 – 99C 80-N V grinding wheel was used for the process. The process of burnishing was done by SRMD burnishing tool by Yamato. The burnishing process could be carried out at the following technological parameters: burnishing force 1.1 kN, burnishing speed 35 m/min, feed 0.13 mm/rev [1, 2, 3]. The paper aimed at defining the influence of burnishing on service conditions by: testing electrochemical corrosion, friction wear and contact fatigue. The work presented the research results of friction factor tests of the samples after finish turning, grinding and burnishing. In addition, the influence of the burnisher passes number on the friction factor was determined. The experiment was performed on block – roll tester machine.

The Effect of Technological Parameters on the Quality of UHMWPE Products

2013 ◽  
Vol 752 ◽  
pp. 233-240
Author(s):  
Imre Kállai
Keyword(s):  
Life Span ◽  
Research Work ◽  
Heavy Duty ◽  
Technological Parameters ◽  
Quality Properties ◽  
Joint Implants ◽  
The Stability ◽  
The Many ◽  
The Impact

We can encounter products made from UHMWPE in many different areas of utilization. This material is used in plastic bearings, ball-and-socket joints, heavy-duty plastic cog-wheels and joint implants. The UHMWPE is a very particular polymer, the special characteristics of which can be attributed to its molecular structure. The ulra-high molecular weight has an effect on wear-resistance, creep-resistance and hardness. These are the parameters demanded by the highly specialized utilization. On the other hand, this molecular stucture also has disadvantages next to the many advantages. Its greatest disadvantage is that it’s difficult to process. The UHMWPE is a thermoplastic, but because of the long molecular chains its injection molding is impossible. In the course of the present research work we will compare the mechanical and quality properties of products made with lathe machining (RAM extrusion) and direct compression molding. We will examine the impact of the changes of the manufacturing and technological parameters. We will be placing a special emphasis on the surface quality because the quality and life-span of the abovementioned products (bearings, ball-and-socket joints, artficial joints) largely depends on this parameter. Besides this we will examine the changes of hardness and the stability of size. In view of these results we will try to determine what would be the best manufacturing technology that could ensure the maximum performance and life-span of these products. [1,3,6] We are focusing by having the results, to optimizing the manufacturing.

scholarly journals The influence of technological parameters on malt quality produced from different triticale varieties

2009 ◽  
pp. 297-303 ◽  
Author(s):  
Olgica Grujic ◽  
Jelena Pejin ◽  
Srboljub Dencic
Keyword(s):  
Gibberellic Acid ◽  
Positive Influence ◽  
Important Influence ◽  
Technological Parameters ◽  
Malt Quality ◽  
Technological Quality

The analysis of eight different triticale varieties, from selective experiments, crop 2007, from Rimski Sancevi (Serbia) location was performed. On the basis of results obtained from triticale and produced triticale malt analysis as well as during micromalting, technological quality of investigated triticale varieties was evaluated. The aim of the work was to determine if the gibberellic acid added during the germination phase had a positive influence on the degradation of triticale grain during micromalting. Based on the obtained results it was concluded that triticale variety has the most important influence on the quality of produced triticale malt.

scholarly journals Agro-ecological and Technological Quality of Some Apples

2021 ◽  
Vol 17 ◽  
pp. 56-65
Author(s):  
Anton Sotirov ◽  
Nikolay Glavev ◽  
Dimitar Sotirov ◽  
Stanislava Dimitrova ◽  
Nikola Pistalov ◽  
...  
Keyword(s):  
Apple Juice ◽  
Sugar Content ◽  
Salt Content ◽  
Gold Rush ◽  
Raw Material ◽  
Technological Parameters ◽  
Total Sugar Content ◽  
Technological Quality ◽  
Cold Pressed

The aim of the study is to investigate cloudy apple juices, produced from 83 apple varieties, grown by the Institute of Agriculture in town of Kyustendil, Bulgaria for their main ecological and technological parameters, in view of their safety for the population and the possibilities for their use as raw material in the food industry. The study found, that the apples are environmentally friendly for the studied parameters. Technologically, there are varieties with the highest juice yields (over 70%) - Defloga, Ginger Gold, Gold Rush, Granny Smith, and Melrose. The most tasty and colored juices of fresh fruit and fruit flour are separated from the Florina, Free Redstar, Ginger Gold, Gold Rush, Golden Delicious, and Granny Smith. Some practically do not give juice and material for fruit flour with the applied method 100% cold-pressed apple juice, but they produce puree with high quality as the Belgolden, Braeburn, Charden, and Red Delicious. There were observed very stable approximate ratios between Conductivity, Total Dissolved Solids, and Salt content in the juices as follows: Cond./TDS=1.5, TDS/Salt=1.3, Cond./Salt=2. Retio between Total Sugar Content and Total Acidity - Brix/pH = 3-5, as the most tasty and with good color juices have ratio Brix/pH=4.

Considerations of the technological quality assessment of sugarbeet

2011 ◽  
pp. 85-89 ◽  
Author(s):  
Giorgio Pezzi
Keyword(s):  
Quality Parameters ◽  
Northern Italy ◽  
Glucose Content ◽  
Long Term Storage ◽  
Interesting Correlation ◽  
Technological Quality ◽  
Thick Juice

No real improvement in the technological quality of beet has been recorded over the last 15 years in Northern Italy. Among the possible explanations for the quality stagnation is that the traditional formulae cannot correctly differentiate between sugarbeet varieties which produce thick juice of very high purity. This seems to be connected with the role of potassium. The use of a standard purification procedure gives reliable and accurate data which is immediately comparable with the factory data. Research projects on medium/long term storage are currently being performed by Co.Pro.B., Italy, in cooperation with Syngenta and Beta. Up to now the results have shown that storage of sugarbeet in autumn time in northern Italy is possible provided that suitable varieties and proper handling of the roots are employed. Results obtained in the storage trials are reported. Correlations have been found between quality parameters (purity, color and lime salts) of the purified juice with the glucose content of the raw juice. An interesting correlation is reported between purified juice purity and raw juice purity.

Simulation and Emulation Tools for Fog Computing

2020 ◽  
Vol 13 ◽  
Author(s):  
Simar Preet Singh ◽  
Rajesh Kumar ◽  
Anju Sharma ◽  
S. Raji Reddy ◽  
Priyanka Vashisht
Keyword(s):  
Quality Of Service ◽  
Programming Languages ◽  
Traffic Management ◽  
Fog Computing ◽  
Research Work ◽  
Research Experience ◽  
Computing Paradigm ◽  
Quality Of Service Parameters ◽  
User Friendly

Background: Fog computing paradigm has recently emerged and gained higher attention in present era of Internet of Things. The growth of large number of devices all around, leads to the situation of flow of packets everywhere on the Internet. To overcome this situation and to provide computations at network edge, fog computing is the need of present time that enhances traffic management and avoids critical situations of jam, congestion etc. Methods: For research purposes, there are many methods to implement the scenarios of fog computing i.e. real-time implementation, implementation using emulators, implementation using simulators etc. The present study aims to describe the various simulation and emulation tools for implementing fog computing scenarios. Results: Review shows that iFogSim is the simulator that most of the researchers use in their research work. Among emulators, EmuFog is being used at higher pace than other available emulators. This might be due to ease of implementation and user-friendly nature of these tools and language these tools are based upon. The use of such tools enhance better research experience and leads to improved quality of service parameters (like bandwidth, network, security etc.). Conclusion: There are many fog computing simulators/emulators based on many different platforms that uses different programming languages. The paper concludes that the two main simulation and emulation tools in the area of fog computing are iFogSim and EmuFog. Accessibility of these simulation/emulation tools enhance better research experience and leads to improved quality of service parameters along with the ease of their usage.

scholarly journals Quality of beef diaphragm meat in naturally occurring Sarcocystic infection in cattle

2018 ◽  
Vol 36 (No. 5) ◽  
pp. 378-385
Author(s):  
Vytautas Januskevicius ◽  
Grazina Januskeviciene ◽  
Gintare Zaborskiene
Keyword(s):  
Meat Quality ◽  
Harmful Effect ◽  
Coliform Bacteria ◽  
E Coli ◽  
Noticeable Increase ◽  
Physico Chemical ◽  
Infected Meat ◽  
Technological Quality ◽  
Meat Samples

The aim of this study was to investigate the possible harmful effect of Sarcocystis parasites on bovine diaphragm meat quality. Meat samples were collected from 120 bulls aged 20–24 months. Meat quality was investigated using microbiological and physico-chemical (RP-HPLC, GC) methods 48 hours after slaughter. Sarcocystis infection was associated with increased fat content, lightness L* and drip loss, and decreased ash and protein percentages. Infection also had a significant effect on the amount of amino acids (AAs), which slowly decreased as the number of sarcocysts increased. The total amount of AAs correlated with glutamic acid content (R = 0.966, P &lt; 0.05). Heavily infected samples contained significantly lower amounts of putrescine, histamine, spermine and spermidine (P &lt; 0.05) and<br /> a noticeable increase in the total count of aerobic microorganisms, but no change in the numbers of E. coli and coliform bacteria in comparison with no infected samples. Sarcocysts in beef diaphragms did not cause serious changes in the technological quality of the meat, but the biological quality of infected meat was reduced.  

scholarly journals Effect of the Application Date of Fertilizer Containing Silicon and Potassium on the Yield and Technological Quality of Sugar Beet Roots

Plants ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 370
Author(s):  
Arkadiusz Artyszak ◽  
Dariusz Gozdowski ◽  
Alicja Siuda
Keyword(s):  
Sugar Beet ◽  
Foliar Application ◽  
Plant Protection ◽  
Plant Protection Products ◽  
Water Shortage ◽  
The European Union ◽  
Yield Increase ◽  
Time Of Application ◽  
Technological Quality

Water shortage and drought are a growing problem in Europe. Therefore, effective methods for limiting its effects are necessary. At the same time, the “field to fork” strategy adopted by the European Commission aims to achieve a significant reduction in the use of plant protection products and fertilizers in the European Union. In an experiment conducted in 2018–2020, the effect of the method of foliar fertilization containing silicon and potassium on the yield and technological quality of sugar beet roots was assessed. The fertilizer was used in seven combinations, differing in the number and time of application. The best results were obtained by treating plants during drought stress. The better soil moisture for the plants, the smaller the pure sugar yield increase was observed. It is difficult to clearly state which combination of silicon and potassium foliar application is optimal, as their effects do not differ greatly.

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