Solid/liquid composite double solidification continuous casting forming equipment and method for coating material

Abstract

The invention belongs to the technical field of clad material continuous casting, in particular to clad material solid / liquid composite dual-solidification continuous casting and forming equipment and method. The clad material solid / liquid composite dual-solidification continuous casting and forming equipment and method are characterized in that inversion solidification and forward solidification continuous casting and forming are combined, the measures that core materials are not heated in advance, an inversion solidification device with small capacity is designed, the core materials are prevented from penetrating through clad layer melt metal for a long time, the melt metal flows out from the bottom of a crucible by relying on self-weight, and the size of the inversion solidification device and the size of a water-cooled crystallizer are controlled effectively are taken, the high quality clad materials of needed shapes and sizes are formed through continuous casting, and the equipment and the method are especially suitable for continuous casting forming of the high quality clad materials with the melting point of the clad layer metal lower than that of the core material metal. The equipment and method have the advantages that the equipment is simple in structure, parts are easy to replace, operation and maintenance are convenient to carry out, layout is reasonable and compact, investment is small, industrialized application and popularization are facilitated, the procedure of the forming process is short, energy is saved, environment is protected, cost is low, the combination freedom of the clad layer metal and the core material metal is large, and the prepared clad materials are good in quality and performance.

Description

technical field [0001] The invention belongs to the technical field of continuous casting of cladding materials, in particular to a solid / liquid composite double solidification continuous casting forming equipment and method for cladding materials, and is especially suitable for cladding materials whose melting point of cladding layer metal is lower than that of core material metal. cast into shape. technical background [0002] The cladding material is a composite material that coats a layer of dissimilar metals on the core material. It has the advantages of both the cladding metal and the core material metal. It not only has excellent comprehensive performance, but also greatly reduces the amount of precious metals used and reduces the cost. Therefore, it is widely used in the fields of aerospace, energy and environmental protection, construction machinery, petrochemical industry, transportation, electronic information, national defense and military industry, and daily lif...

AI Technical Summary

Problems solved by technology

When the cladding material is formed by hot-dip plating, the core material needs to be preheated to a certain high temperature in advance, and the core material will be immersed in the cladding metal melt for a long time. It is more likely to be excessively corroded, the thickness of the interface diffusion layer of the cladding material, the interface quality (such as easy to generate intermetallic compounds, etc.) and the thickness of the cladding layer metal are difficult to control, and the thickness uniformity and stability of the cladding layer metal are difficult to guarantee , the surface quality of the cladding layer metal is poor, and at the same time, the equipment is complicated, the investment is large, the technology is difficult, and the production cost is high

[0006] Some other composite casting methods are being developed that use the cladding metal melt to continuously clad the formed solid core material (such as horizontal continuous casting cladding, down-drawing continuous casting cladding, net-shape casting and rolling). Coating method) also has various problems, mainly including that the core material must be heated in advance, the process is long, the investment in anti-oxidation of the core material is large, the required supporting facilities are many, the equipment is complicated, the operation is cumbersome, the energy consumption is large, and the production cost is high. , or the core material needs to pass through the cladding metal melt that has been heated all the time, the surface of the core material is easy to be excessively eroded, the metal elements of the core material are easy to diffuse into the cladding metal melt to cause pollution, the quality and performance of the cladding material Difficult to meet high standard use requirements, etc.

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