TY - JOUR AU - Piekarski, Bogdan AU - Drotlew, Andrzej PY - 2020/11/04 Y2 - 2024/03/29 TI - Structures for Heat Treatment Assembled from Cast Elements JF - Journal of Casting & Materials Engineering JA - JCME VL - 4 IS - 4 SE - Articles DO - 10.7494/jcme.2020.4.4.53 UR - https://journals.agh.edu.pl/jcme/article/view/3833 SP - AB - Various types of technological equipment individually designed for operation in pit and elevator heat treatment furnaces are<br />described in this article. A common characteristic of these structures is that they are composed of several or several dozen thin-<br />-walled elements of various shapes and sizes, gravity cast in sand moulds from creep-resistant alloys (austenitic Cr-Ni/Ni-Cr<br />cast steel and cast nickel alloys). The design of the castings requires the development of a manufacturing technology that can<br />effectively use the principle of the simultaneous solidification of all components. Properly designed equipment should have minimum<br />weight, maximum strength, and maximum loading capacity combined with adequate durability and reliability. Two designs<br />of the equipment for the heat treatment of steel parts were presented. Both designs, as well as their individual components, were<br />described in detail and illustrated. The main task of the equipment is to form the charge in the furnace and transport this charge<br />both inside and outside the furnace. The first design is the design of an equipment for the heat treatment of large ring-shaped<br />parts. The second design is the design of an equipment, whose structure can be modified using various repeatable components. As<br />a result of these modifications, different variants of the equipment are obtained, allowing for the heat treatment of five different<br />types of the shafts characterized by different shapes and sizes. The study is of an application nature. It is addressed to engineering<br />and technical staff dealing with both the design and operation of heat treatment furnaces. ER -