FRACTURE MODEL OF METALLURGICAL SINTER
https://doi.org/10.17073/0368-0797-2016-3-159-166
Abstract
The paper covers specifi c features of up-to-date test methods for metallurgical sinter strength, defi ciencies of these methods, related to issues of overall improvement of sintering and blast-furnace production processes requiring application of sinter fracture models. Theories of liquid melt migration upon sintering as well as features of sinter cake formation are reviewed; a model of metallurgical sinter fracture is suggested as well, which is based on combined use of the model for hard inclusion tension in the matrix along with the fracture model based on Rittinger’s law. Forces applied to sinter lumps in a test drum are determined and a method for adjustment of the sinter fracture model is suggested with use of granulometric properties of products under testing. It is suggested to use probability distribution of fracture model parameters for the purpose of adjustment. Dependences of these parameters from sinter basicity, carbon content in the charge material and limestone lump size are determined.
About the Authors
M. Yu. Ryabchikov
Magnitogorsk State Technical University named after G.I. Nosov
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Assist. Professor of the Chair of Automated Control Systems,
Magnitogorsk
V. V. Grebennikova
Magnitogorsk State Technical University named after G.I. Nosov
Russian Federation
Russian Federation
Senior Lecturer of the Chair of Automated Control Systems,
Magnitogorsk
E. S. Ryabchikova
Magnitogorsk State Technical University named after G.I. Nosov
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Senior Lecturer of the Chair of Automated Control Systems,
Magnitogorsk
N. V. Bogdanov
Magnitogorsk State Technical University named after G.I. Nosov
Russian Federation
Russian Federation
MA Student,
Magnitogorsk
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Review
For citations:
Ryabchikov M.Yu., Grebennikova V.V., Ryabchikova E.S., Bogdanov N.V. FRACTURE MODEL OF METALLURGICAL SINTER. Izvestiya. Ferrous Metallurgy. 2016;59(3):159-166. (In Russ.) https://doi.org/10.17073/0368-0797-2016-3-159-166
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