Magnetostatic field twin roller caster

Abstract

A static magnetic field double-roll casting and rolling machine comprises a frame, an in-frame upper bearing seat, an upper casting and rolling roll, an in-frame lower bearing seat, and a lower casting and rolling roll; the upper casting and rolling roll, a first transmission shaft, a first reducer and a first DC motor are connected in sequence; the lower casting and rolling roll, a second transmission shaft, a second reducer and a second DC motor are connected in sequence. The frame is also provided with a water cooling system and a hydraulic cylinder which is used for adjusting the elevation and subsidencei of the lower casting and rolling roll; two magnetic poles are respectively contacted with the upper casting and rolling roll and the lower casting and rolling roll. The upper casting and rolling roll is contacted with a first magnetic pole; the lower casting and rolling roll is contacted with a second magnetic pole; the first magnetic pole and the second magnetic pole are connected with an iron core; the iron core is provided with a magnet exciting coil; the magnet exciting coil is connected with a DC power; the DC power applies large current on a loop manufactured by a copper tube and applies the static magnetic field generated by the loop between the clearances of the rolls by the casting and rolling rolls by the magnetic poles made from ultra-low-carbon steel. The static magnetic field double-roll casting and rolling machine of the invention can manufacture fine and purified metal plate belt materials with uniformly distributed alloy elements, no crack and high property.

Description

Technical field [0001] The invention belongs to the technical field of metallurgical rolling equipment, and particularly relates to a static magnetic field twin-roll casting and rolling mill. Background technique [0002] Twin-roll casting-rolling has been widely used in the production of aluminum alloy plates and strips. The twin-roll casting-rolling mills in various countries are mainly used to produce aluminum and aluminum alloy plates and strips. The equipment investment of twin-roll casting-rolling mills is small, and the operating cost is low. Rolling technology can only be used to produce alloys with a small solidification temperature range, and it is difficult to cast and roll high-alloy element alloys with a large solidification temperature range. [0003] Cast-rolling process is the main method for non-ferrous metals to prepare plate and strip blanks, and it is also the development direction of steel materials in the future. The quality of cast-rolling blanks controls t...

AI Technical Summary

Problems solved by technology

During the casting and rolling process, due to unbalanced solidification, a reticular brittle second phase will appear at the grain boundary, the alloy structure will be severely uneven, and the strength and plasticity will decrease. To solve this problem, the method of increasing the casting and rolling speed and cooling intensity, or Electromagnetic oscillating stirring is carried out before the casting and rolling area to achieve the purpose of grain refinement. Although a certain effect has been achieved, there are still great defects and problems, which are still not ideal.

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