Structures for Heat Treatment Assembled from Cast Elements

• Autorzy: Piekarski Bogdan , Drotlew Andrzej

Identyfikatory

DOI

10.7494/jcme.2020.4.4.53

• Języki publikacji: EN

Abstrakty

EN

Various types of technological equipment individually designed for operation in pit and elevator heat treatment furnaces are described in this article. A common characteristic of these structures is that they are composed of several or several dozen thin-walled elements of various shapes and sizes, gravity cast in sand moulds from creep-resistant alloys (austenitic Cr-Ni/Ni-Cr cast steel and cast nickel alloys). The design of the castings requires the development of a manufacturing technology that can effectively use the principle of the simultaneous solidification of all components. Properly designed equipment should have minimum weight, maximum strength, and maximum loading capacity combined with adequate durability and reliability. Two designs of the equipment for the heat treatment of steel parts were presented. Both designs, as well as their individual components, were described in detail and illustrated. The main task of the equipment is to form the charge in the furnace and transport this charge both inside and outside the furnace. The first design is the design of an equipment for the heat treatment of large ring-shaped parts. The second design is the design of an equipment, whose structure can be modified using various repeatable components. As a result of these modifications, different variants of the equipment are obtained, allowing for the heat treatment of five different types of the shafts characterized by different shapes and sizes. The study is of an application nature. It is addressed to engineering and technical staff dealing with both the design and operation of heat treatment furnaces.

Słowa kluczowe

EN

castings for heat treatment plants; design of castings; grates

PL

odlewy dla zakładów obróbki cieplnej; projektowanie odlewów; ruszty

• Wydawca: AGH University of Science and Technology Press
• Czasopismo: Journal of Casting & Materials Engineering
• Rocznik: 2020
• Tom: Vol. 4, no. 4
• Strony: 53--57
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Piekarski Bogdan

• West Pomeranian University of Technology Szczecin, Department of Materials Technology, al. Piastów 17, 70-310 Szczecin, Poland

autor

Drotlew Andrzej

• Przedsiębiorstwo Usług Odlewniczych POLCAST Sp. J., al. Piastów 19, 70-310 Szczecin, Poland

Bibliografia

• [1] Steinkusch W. (1987). Hitzebeständiger Stahlguss für Wärmebehandlungsanlagen. Gas Wärme International, 6, 340–346.
• [2] Drotlew A. & Piekarski, B. (2020). Connecting castings for operation under conditions of cyclic temperature changes. Journal of Castings & Materials Engineering, 4(1), 16–21.
• [3] Davis J.R. (ed.) (1997). Industrial Applications of Heat-Resistant Materials. In: Heat Resistant Materials ASM International, 67–85.
• [4] Piekarski B. (2012). Odlewy ze stopów żarowytrzymałych w piecach do obróbki cieplnej. Szczecin: Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie.
• [5] Folders: Lohmann, Cronite, Pose-Marre, Technoalloy, MANOIR PETRO-CHEM, AFE Technologies, NCK, Polcast.
• [6] Piekło J. & Pysz S. (2000). Kształtowanie wytrzymałościowe odlewu palety transportowej stosowanej w piecach tunelowych na podstawie analizy numerycznej pola temperatury i stanu naprężenia. Biuletyn Instytutu Odlewnictwa, 1(3), 3–13.
• [7] Nandwana D., Bhupendra N.K., Khandelwal N., Bhargava T., Nandwana K. & Jawale G. (2010). Design, finite element analysis and optimization of HRC trays used in heat treatment process. Proceedings of the World Congress on Engineering WCE 2010. II, 1149–1154.
• [8] Bajwoluk A. & Gutowski P. (2016). Thermal stresses in the wall connections of cast grate structures. Archives of Foundry Engineering, 4, 11–16.
• [9] Bajwoluk A. & Gutowski P. (2019). Stress and crack propagation in the surface layer of carburized stable austenitic alloys during cooling. Materials at High Temperatures, 36(1), 9–18. Doi: 10.1080/09603409.2018.1448528.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021)