A continuous casting funnel mold molten steel solidification and billet simulation device and its application method
A technology of simulating device and crystallizer, applied in the field of iron and steel metallurgy
Active Publication Date: 2022-04-22
CENT SOUTH UNIV
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Problems solved by technology
But so far, there is no good design to simulate the funnel-shaped mold for thin slab continuous casting, and realize the continuous casting simulation research of funnel-shaped mold at the laboratory level
Method used
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Embodiment 1
[0069] The equipment used in this example is figure 1 shown.
[0070] In this embodiment, the steps of the continuous casting funnel mold molten steel solidification and slab simulation method are as follows:
[0071] 1) Put a 50Kg experimental steel block with a size of 50×50×50mm into the induction steelmaking furnace, and in the case of argon protection, start the induction heating to heat the molten steel to 1500°C and keep it for 20 minutes until it is completely melted into steel liquid.
[0072] 2) Add 100g of mold slag particles to the surface of the molten steel. The high-temperature molten steel will melt the mold slag particles into a liquid state and cover the surface of the molten steel to absorb the floating inclusions on the surface of the molten steel. After 5 minutes, the surface of the molten steel will absorb the inclusions. Remove the protection residue.
[0073] 3) Add 200g of mold slag particles to the molten steel again, and after standing for 10 min...
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The invention discloses a continuous casting funnel-shaped crystallizer liquid steel solidification and casting slab simulation device and its use method. The simulation device includes a steelmaking furnace, a motor drive system, a continuous casting funnel-shaped crystallizer simulation system, a cooling water system, a temperature Acquisition System. The invention simulates the solidification process and continuous casting process of molten steel in the funnel-shaped crystallizer in the production of thin slab continuous casting, and obtains the initial solidification slab shell and the temperature change curve in the crystallizer with the characteristics of actual thin slab, so as to realize the control of molten steel in the funnel-shaped crystallizer. Simulation research on the initial solidification behavior of molten steel in the funnel-shaped mold, the surface quality of slab, and the influence of continuous casting process parameters on the initial solidification behavior of molten steel. The invention is suitable for simulating the production of existing steel types, and can also be used for the development and research of crack sensitive steel type thin slab continuous casting production. Compared with the actual continuous casting industrial production process of the thin slab, the invention has the advantages of simple and convenient operation, low experiment cost and the like.
Description
technical field [0001] The invention discloses a continuous casting funnel-shaped crystallizer molten steel solidification and billet simulation device and a use method thereof, which belong to the technical field of iron and steel metallurgy. Background technique [0002] In the 1990s, after two oil crises and three financial crises, the global economy was sluggish. As an industry with high energy consumption and low profits, the iron and steel industry must face structural adjustment, technological optimization, and process improvement to enhance competitiveness and Guaranteed economic benefits. Therefore, the short-process process represented by thin slab continuous casting and rolling has received special attention from investors and manufacturers because of its low energy consumption, low cost and high efficiency. Since the first thin slab continuous casting and rolling production line-CSP process line developed by German SMS Siemag was completed and put into operation...
Claims
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IPC IPC(8): B22D11/14B22D11/111B22D11/053B22D11/16
CPCB22D11/145B22D11/111B22D11/053B22D11/16
Inventor 王万林张磊梁策张华龙吕培生颜雄王凤康
Owner CENT SOUTH UNIV