| Autor: |
M. M. Zimin, N. A. Zyuban, M. S. Nikitin, D. V. Rutskiy, R. M. Vojtenko, A. Y. Agarkov |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
IZVESTIA VOLGOGRAD STATE TECHNICAL UNIVERSITY. :46-49 |
| ISSN: |
1990-5297 |
| DOI: |
10.35211/1990-5297-2021-7-254-46-49 |
| Popis: |
The paper presents studies showing the effectiveness of the use of wire with SiCa filler in the out-of-furnace processing of steels. The efficiency of use was evaluated by calculating the contamination with non-metallic inclusions, as well as by determining the phase composition of non-metallic inclusions at the stages of out-of-furnace processing and casting. (installation bucket furnace→vacuum cleaner→continuous casting). The study found that the adjustment of the content of aluminum before casting leads to the formation of refractory inclusions of corundum - (AlO), spinels - (AlO·MgO), which are deposited on the walls of the steel filling path and worsen the spillability of steel. The use of SK30prov with SiCa filler at the final stages of extra-furnace processing (after the introduction of aluminum), leads to the modification of refractory inclusions in low-melting calcium aluminates of the type (CaO·AlO). The presence of low-melting inclusions is more preferable, since this type of inclusions is not deposited on the walls of the filling cup and does not have a negative effect on the contamination of the continuously cast billet and products obtained from them with inclusions. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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