Abstract
Exothermic riser sleeves are important tools to increase solidification duration, particularly for iron-steel casting. Increasing the time to solidus improved casting product quality by minimizing cavities. Therefore, process costs were significantly reduced. In comparison with the use of unsleeved risers, exothermic riser sleeves retain up to 30–35% of the heat and increase the duration to solidus by nearly 50%. Exothermic riser sleeves are a mixture of metallothermic-based exothermic and insulating materials that are manufactured in different sizes and shapes. Various suppliers produce these sleeves in different compositions. However, the designers must clearly understand the thermochemical and thermophysical properties. The purpose of the present study was to experimentally determine the effects of varying experimental parameters such as reaction duration, flammability and temperature change etc. on selected exothermic sleeves. The results were compared with thermodynamical simulations which were performed using the contents and the corresponding thermophysical properties of exothermic sleeves.
Original language | English |
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Title of host publication | 9th International Symposium on High-Temperature Metallurgical Processing |
Editors | Ender Keskinkilic, Zhiwei Peng, Mark William Kennedy, Jiann-Yang Hwang, Onuralp Yucel, Jerome P. Downey, Shijie Wang, Rafael Padilla, Baojun Zhao, Dean Gregurek, Tao Jiang |
Publisher | Springer International Publishing |
Pages | 345-351 |
Number of pages | 7 |
ISBN (Print) | 9783319721378 |
DOIs | |
Publication status | Published - 2018 |
Event | 9th International Symposium on High-Temperature Metallurgical Processing organized in conjunction with the Annual Meeting and Exhibition, TMS 2018 - Phoenix, United States Duration: 11 Mar 2018 → 15 Mar 2018 |
Publication series
Name | Minerals, Metals and Materials Series |
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Volume | Part F10 |
ISSN (Print) | 2367-1181 |
ISSN (Electronic) | 2367-1696 |
Conference
Conference | 9th International Symposium on High-Temperature Metallurgical Processing organized in conjunction with the Annual Meeting and Exhibition, TMS 2018 |
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Country/Territory | United States |
City | Phoenix |
Period | 11/03/18 → 15/03/18 |
Bibliographical note
Publisher Copyright:© 2018, The Minerals, Metals & Materials Society.
Keywords
- Casting
- Ductile iron
- Metallothermic reduction
- Riser sleeve
- Steel