Continuous casting method of liquid-phase composite slab

Abstract

The invention provides a continuous casting method of a liquid-phase composite slab. A continuous casting device comprises a composite casting system, a roll type crystallizer, a pinch and bending device, a withdrawing-straightening device, a shearing device and a dummy bar system. A base material metal pouring ladle and a composite material metal pouring ladle pour metal solution into a roll type crystallizer molten pool formed by crystallizing rolls and side seal plates via submerged nozzles. An intermediate diaphragm separates the molten pool into a base material dissolved cavity and a composite material dissolved cavity. The base material metal solution and the composite material metal solution are respectively solidified into slab shells on the crystallizing rolls, the crystallizing rolls synchronously rotate in the reverse direction and the metal slab shells move downward along with rotation of the crystallizing rolls. The base material metal liquid interacts with the composite material metal solid-liquid interface to realize metallurgical fusion and composition of the interface, and is bonded into the composite slab at the exit of the roll crystallizer. The composite casting slab is transferred by pinch rolls and bent into arc by a bending roll, and then enters the withdrawing-straightening section through a guide roll to be horizontally straightened. The composite casting slab keeps on moving forward to the roll way in a shear zone to be cut to length by swinging shears and then is moved out.

Description

technical field [0001] The invention relates to the technical field of preparation of layered metal composite materials, in particular to the technology of manufacturing composite metal continuous casting slabs by means of continuous casting. Background technique [0002] The 21st century is the era of composite materials. With the development of science and technology, the application of new materials is becoming more and more extensive. It is difficult for a single material or alloy to meet the comprehensive performance requirements of modern production. Composite materials are an important way to solve various special structural and functional requirements. The development of new composite materials has attracted widespread attention from all over the world. In the past 10 years, various new composite materials and their preparation technologies have also developed rapidly. [0003] The range of modern composite materials is very wide, and layered metal composites are ju...

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Problems solved by technology

[0008] In view of the problems existing in the above-mentioned prior art, the purpose of the present invention is to research and design a novel liquid-phase composite slab continuous casting preparation method and device, thereby solving the problems produced by the existing explosive composite method and rolling composite method. The surface of the composite plate is deformed and uneven, the size of the product and the thickness of the composite layer are limited, the bonding strength of the composite interface is relatively low, the production cost is high, and it cannot be mass-produced.

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