Full
Outline
Studying the influence of induction heating on the metallurgical transmission behavior was of great significance for improving the quality of castings. However, direct observation and measurement were difficult to conduct owing to the high temperature of the melt and the high cutting cost of ingots, which resulted in substantial experimental losses. Therefore, a multi-physical field coupling model of electromagnetic field-temperature field-flow field-solute field was designed by combining numerical simulation with experimental verification, and sampling verification was performed on a 700 kg ingot of 34CrNi1Mo steel. The influence of two induction heating layouts on the solidification process and solute transport behavior of the ingot were simulated, and the application scenarios of dif ferent coil layouts were analyzed. The results showed that the coil layout exerted a significant impact on the solidification behavior of the ingot. Magnetic fields from different layouts modified flow field patterns and mitigated solute segregation. The two layouts reduced the carbon segregation rate at the riser by approximately 47% and 52% respectively. It was confirmed that the induction heating technology was a feasible approach to achieve solute homogenization in the ingot and improve the quality of the ingot, providing a reference for the industrial application of induction heating of ingots.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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