Electromagnetic/ultrasound compound outfield continuous casting and rolling device

Abstract

The invention discloses an electromagnetic / ultrasound compound outfield continuous casting and rolling device. A frame body (14) is fixedly provided with a magnetic field generator (17) distributed along the axial direction of a roller; a vibration-proof bar (23) is connected with and arranged on the frame body (14); at least one upper iron core (4) distributed along the axial line of the roller is connected to the vibration-proof bar (23) through a first bolt (5); the upper iron core (4) is connected with a movable iron core (6) through a hinge; an upper press plate (2) and an upper liner plate (3) are arranged between the upper iron core (4) and a casting nozzle (1); a supporting rod (9) is connected to a front box (8) and is provided with an ultrasound generator (10); and an ultrasound toolhead of the ultrasound generator (10) extends into the front box (8). The invention relates to the electromagnetic / ultrasound compound outfield continuous casting and rolling device which can refine a casting and rolling texture, increase the mechanical property, improve the anisotropy, reduce or eliminate segregation, macro and micro flaws and achieve long service life of the casting nozzle in the continuous casting and rolling process of an aluminum alloy casting and rolling plate billet.

Description

technical field [0001] The invention relates to a device for continuous casting and rolling of aluminum alloy casting and rolling slabs, in particular to an electromagnetic / ultrasonic composite external field continuous casting and rolling device for continuous casting and rolling of aluminum alloy casting and rolling slabs. Background technique [0002] Continuous casting and rolling of aluminum and aluminum alloy strip blanks has been valued by countries all over the world because of its advantages such as short process, low investment, energy saving and consumption reduction, and high economic benefits. At present, the aluminum strip produced by continuous casting and rolling has accounted for 70% of the total production in China and about 40% in the world. Domestic continuous casting and rolling equipment has grown to more than 300 sets. However, the conventional casting and rolling production process is currently limited to 1 *** series all, 3 *** Series and 8 *** P...

AI Technical Summary

Problems solved by technology

[0003] Grain size is an important factor determining the performance of aluminum alloy strips. At present, grain refiners are often used in industry, which can reach the first-grade grain size. The grain size is about 450 μm, but the cost of refiner is high. It is easy to precipitate during the process, which makes the quality of the cast-rolled sheet unstable, especially for high-purity aluminum foil, the addition of grain refiners will cause alloy pollution, and for PS sheets, the refiner will cause segregation, uneven surface corrosion, and affect printing quality

Due to the serious anisotropy of cast-rolled slabs and high ear-making rate, conventional casting-rolling methods cannot be used to produce can slabs and automobile slabs

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