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1
Content available The Burnishing Process of the Duplex Cast Steel in Aspect of Improving the Tribological Properties
Stradomski G. E., Fik Joanna, Rydz Dariusz
Archives of Foundry Engineering
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2023
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Vol. 23, iss. 2
51--57
EN
Duplex cast steel it is a material with great potential. The properties of this material have contributed to its wide application in many industrial sectors, for example: oil extraction, printing, petrochemical industry, energy - flue gas desulphurization systems, seawater desalination plants, shipbuilding industry. The article presents the results of tribological tests following the static pressure roller burnishing (SPRB) process of GX2CrNiMoN22-5-3 duplex cast steel. The tests provided a basis for assessing the effect of the burnishing parameters on tribological properties of that material. The issue is important because the authors focused their research on duplex cast steels grade that are not containing copper. The article presents part of the research concerning the influence of the burnishing process on the properties of the duplex steel surface layer. Copper in duplex steels affects many areas one of them is the plastic properties. Its absence also reduces castability. Because of that it is reasonable to determine to what extent the properties of the surface layer of copper-free duplex cast steel grades can be shaped in burnishing process.
2
Content available Job Safety Analysis in the context of the Risk Management Process
Wojtyto Dorota, Rydz Dariusz, Pałęga Michał, Arbuz Aleksander S.
System Safety : Human - Technical Facility - Environment
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2019
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Vol. 1, nr 1
35--44
EN
The article presents the Job Safety Analysis for a Glass Production Line Operator's Workstation in the context of the Risk Management Process. The main tasks performed by the worker have been defined, and then risks associated with each activity and preventive actions have been identified. On this basis, for the Health & Safety risk analysis and assessment, criteria have been established, which take into account the actual exposure to risks and their probability and results.
3
Content available Ergonomic evaluation of working position using the REBA method - case study
Pałęga Michał, Rydz Dariusz, Wojtyto Dorota, Arbuz Alexander
System Safety : Human - Technical Facility - Environment
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2019
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Vol. 1, nr 1
61--68
EN
Provision of professional work is very often associated with the worker's exposure to the occurrence of various types of threats. Some of the most important include those related to physical overload. Excessive strain on the musculoskeletal system can lead to muscle, ligament and tendon injuries. Therefore, it is necessary to evaluate the workplace in terms of its ergonomics. This paper presents the assessment of the load of the worker's movement system using the REBA method, which takes into account the location of: head with neck, torso, lower limb, as well as hands with the wrist, forearm and arm.
4
Content available Impact of processing parameters on surface roughness and strain hardening of two-phase stainless steel
Dyl Tomasz Cyryl, Charchalis Adam, Stradomski Grzegorz, Rydz Dariusz
Journal of KONES
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2019
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Vol. 26, No. 2
37--44
EN
Products used in the construction of machines and shipbuilding as well as petrochemical industry, such as shafts, bars, pipes and the like from two-phase stainless steel are currently very popular. It is required that they meet certain quality criteria. They must be characterized by suitable properties of the surface layer to meet the requirements of potential buyers. In the article impact of processing parameters on the degree of relative strain hardening and index of surface roughness reduction were presented. The burnishing process was carried out for two-phase stainless steel. Burnishing process of the shafts neck was performed using burnisher roller. The experimental research were obtained in the surface layer increase in hardness and the material ratio curve a convex shaped, which, taking into account the load capacity of the surface will be directly affected by its resistance to wear and corrosion. The experimental research by application of the burnishing process was made in the Laboratory of Production Engineering. After the studies it was found that the hardness of the surface layer and the roughness of the shaft necks an important influenced by technological parameters of processing (burnishing speed, feed rate and depth of burnishing). The objective of applying burnishing process may be, for example, the need to increase surface smoothness and dimensional accuracy of part.
5
Content available Wykorzystanie metody wskaźnikowej do oceny ryzyka zawodowego na stanowisku pracy kierowcy autobusu
Wojtyto Dorota, Rydz Dariusz
Autobusy : technika, eksploatacja, systemy transportowe
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2019
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R. 20, nr 1-2
132--136
PL
W artykule przedstawiono zastosowanie metody jakościowej do oceny ryzyka zawodowego na stanowisku pracy kierowcy autobusu wybranego przedsiębiorstwa komunikacyjnego. W tym celu zidentyfikowano czynności pracy, które są wykonywane przez kierowcę w ciągu zmiany roboczej, a następnie przypisano im potencjalne zagrożenia. Dla par czynność - zagrożenie opracowano kryteria prawdopodobieństwa, ekspozycji oraz skutków, które odzwierciedlają rzeczywiste ryzyko zawodowe z uwzględnieniem różnic, takich jak długość i rodzaj trasy autobusu, liczba przystanków itp.
EN
In the article the application of the indicator method for the assessment of the occupational risk at the bus driver workplace of the chosen communication enterprise was presented. For this objective the work tasks were identificated, which are performed by bus driver during the work shift, and next the potential risk was attributed. For couples tasks and risks the criteria of probability, exposure and effects, which show the real risk occupational including differences, such as length and type of bus route, number of stops, etc. were elaborated.
6
Content available Analiza przyczyn i skutków zagrożeń na stanowisku pracy kierowcy autobusu
Wojtyto Dorota, Rydz Dariusz
Autobusy : technika, eksploatacja, systemy transportowe
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2019
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R. 20, nr 1-2
513--517
PL
W artykule przedstawiono analizę przyczyn i skutków możliwych zagrożeń na stanowisku pracy kierowcy autobusu. W tym celu wykorzystano narzędzie zarządzania jakością, jakim jest diagram Ishikawy. Zdefiniowane zagrożenia i ich przyczyny dotyczyły konkretnych zadań, jakie występują na stanowisku pracy kierowcy autobusu w wybranym przedsiębiorstwie komunikacyjnym.
EN
In the article an analysis of the causes and consequences of possible risks in the bus driver’s workplace was presented. For this aim a quality management tool was used, such as the Ishikawa' s diagram. Defined risks and their causes concerned to task, which occur at the workplace of the bus driver in the chosen enterprise.
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