About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
12th International Symposium on High Temperature Metallurgical Processing
|
Presentation Title |
Experimental Study on Thermal Shock Resistance of Magnesia Carbon Brick |
Author(s) |
Changhai Lv, Jing Li, Renxiang Lv, Shouxin Tian |
On-Site Speaker (Planned) |
Changhai Lv |
Abstract Scope |
In this paper, 5 kinds of magnesia-carbon refractories commonly used in the metallurgical industry were selected for thermal shock resistance study. The experiment results showed that the maximum residual flexural strength of sample 2#, with the best thermal shock resistance by standard, was 8.07 MPa after three thermal shock cycles under the stress of not more than 0.3 MPa. The accuracy of this result was verified through the linear expansion rate and high-temperature Re/E index test. The linear expansion rate of sample 2# basically chimed with that of the high carbon sample at the test temperature of 1200 ℃-1500 ℃, with superior high-temperature Re/E index of sample 2#. The comprehensive analysis suggested the best thermal shock stability of sample 2#. Therefore, this type of magnesia carbon brick with 14% carbon can meet the requirements for the use of refractory materials in a converter bath. |
Proceedings Inclusion? |
Planned: |
Keywords |
Ceramics, High-Temperature Materials, Other |