Tytuł artykułu
Treść / Zawartość
Pełne teksty:
Identyfikatory
Warianty tytułu
Języki publikacji
Abstrakty
A direct influence on the physical and mechanical state of the surface layer of wedge-shaped plates made of 8KHF steel is exerted by heat generation processes developing in the zone of a high-speed thermal process. Research on the influence of the parameters of a high-speed thermal process on the change in the structure of 8KHF steel (GOST 5950-2000 Russia, standard PN/H 85023 brand NCV1 Poland) was fulfilled. It allowed studying the nature of the change in the microstructure depending on short-term heating to various temperatures and rapid cooling. As a result, critical points of the beginning and the end of structural transformations during heating were determined. Research on thermal processes in a high-speed thermal process made it possible to establish regularities of influence of cutting speed, source speed, contact area, coolant properties and heat transfer coefficient on the temperature and rate of thermal processes in surface layers, as well as their impact on the depth of heating to a certain temperature. The study also allowed us to show the relationship between temperature and rates of heating and cooling. The solution to this problem, taking into account the action of the cooling fluid, gives the opportunity to bring the picture of the development of thermal processes closer to real conditions and makes it possible to reasonably predict the structural state of the surface layer of wedge-shaped parts made of 8KHF steel under various conditions of a high-speed thermal process.
Wydawca
Rocznik
Tom
Strony
128--140
Opis fizyczny
Bibliogr. 10 poz., fig., tab.
Twórcy
autor
- Silesian University of Technology Poland
- Tchaikovsky Branch “Perm National Research Polytechnic Institute” , Russia
- Federal State Budgetary Institution of Science “Udmurt Federal Research Center of the Ural Branch of the Russian Academy of Sciences“ Institute of Mechanics, Russia
autor
- Slovak University of Agriculture, Slovak Republic
autor
- Technical University of Kosice, Slovak Republic
Bibliografia
- 1. Bonca, Z., Butrymowicz, D., Hajduk, T., Targański, W. (2004). Nowe czynniki chłodnicze i nośniki ciepła. Własności cieplne, chemiczne i użytkowe. Gdańsk: IPPU MASTA.
- 2. Milewski, P. (2009). Modernizacja systemu chłodzenia wtryskarek linii technologicznej przetwórstwa tworzyw sztucznych – część I. Technika chłodnicza i klimatyzacyjna, No. 8, pp. 286-291.
- 3. Milewski, P. (2009). Modernizacja systemu chłodzenia wtryskarek linii technologicznej przetwórstwa tworzyw sztucznych – część II. Technika chłodnicza i klimatyzacyjna, No 10, pp. 368-370.
- 4. Ullrich, H.J. (1998.) Technika chłodnicza. Tom II. Gdańsk: IPPU MASTA.
- 5. Bernacki M. (2018). Projekt wstępny systemu chłodzenia z wentylatorową chłodnicą cieczy z systemem zraszania w chłodzeniu wtryskarek w przemyśle tworzyw sztucznych. MSc. Gdynia Maritime University.
- 6. Regulation no 517/2014 of the European Parliament and of the Council, on fluorinated greenhouse gases and repealing Regulation (EC) No 842/2006.
- 7. www.lowara.com/2017/05/08/how-to-calculate-life-cycle-cost-payback-times.
- 8. www.mtwmag.com/energy-efficiency-compressors/elgi-lifecycle-cost-for-compressors.
- 9. www.thermokey.it/highlights/adiabatic-systems.
- 10. www.wilo-select.com.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-b9f74ecd-d959-4f82-a57e-051e6b32b518