Development of Manufacturing Technology for a Continuously-Cast Wheel Billet with a Controlled Aluminum Content
| Autor: | I. V. Neklyudov, Yu. L. Kornev, V. V. Morozov, A. Yu. Agarkov, V. V. Tinyakov, A. M. Longinov |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Manufacturing technology
Ladle Materials science 020502 materials Metallurgy 0211 other engineering and technologies Metals and Alloys chemistry.chemical_element Slag 02 engineering and technology Optimum composition Condensed Matter Physics Continuous casting Increased risk 0205 materials engineering chemistry Mechanics of Materials Aluminium visual_art Smelting Materials Chemistry visual_art.visual_art_medium 021102 mining & metallurgy |
| Zdroj: | Metallurgist. 63:469-476 |
| ISSN: | 1573-8892 0026-0894 |
| Popis: | The quality of railway wheels significantly affects the economy and security of railway transportation. In order to improve the properties of railway wheels steel is used currently with a controlled aluminum content. A feature of this steel is the increased risk of forming large alumina non-metallic inclusions. Nonmetallic inclusions in the defective and defect-free zones of a rejected wheel are studied. The causes of defect formation and a new comprehensive technology of smelting are determined, and ladle treatment and continuous casting of steel are developed, which provide avoidance of forming these defects.The main essence of the technology is the diffusion deoxidation of metal with slag of optimum composition, control of aluminum content during ladle treatment, and use of aluminum exclusively for steel alloying. |
| Databáze: | OpenAIRE |
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