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    What is Continuous Casting and Continuous Rolling?

    Author : hani        Time : 2019/11/04

    What is Continuous Casting and Continuous Rolling?

    After the molten steel produced by the converter is refined in the refining furnace, the molten steel needs to be cast into billets of different types and specifications. The continuous casting section is a production process in which the refined molten steel is continuously cast into a billet. The main equipment includes a rotary table, a tundish, a crystallizer, and a tension leveler.

    The non-sinusoidal vibration technology of the crystallizer has a remarkable effect on improving the drawing speed, improving the surface quality of the slab, and reducing the leak rate. The technology can not only improve the casting speed of the continuous casting machine, but also improve the productivity, reduce the leakage, make the continuous casting machine stable, and can provide the high-quality casting blank for rolling, and improve the quality of the rolled material.

    The steel ladle containing the refined molten steel is transported to the rotary table, and after the rotary table is rotated to the pouring position, the molten steel is injected into the tundish, and the tundish is then distributed into the crystallizer by the nozzle. The crystallizer is one of the core equipment of the continuous casting machine, which shapes the casting and rapidly solidifies and crystallizes. The tension leveler cooperates with the crystal vibration device to pull the castings in the crystallizer, and after cooling and electromagnetic stirring, cut into a slab of a certain length. The continuous casting automation control mainly includes the control technology of the continuous casting machine drawing roll speed control, the crystallizer vibration frequency control, and the fixed-length cutting control.

    Continuous casting and rolling require that the continuous casting machine can produce high temperature, and the casting blank has high surface quality and internal quality. At the same time, the continuous casting machine is required to have stable high productivity and high casting speed to meet the needs of high-speed rolling. The non-sinusoidal vibration technology of the crystallizer is the key technology for continuous casting and rolling.

     

    continuous casting

    continuous casting

     

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