Equipment and method for solid/liquid composite continuous casting of coating materials

Abstract

The invention discloses a clad material solid / liquid composite continuous-casting forming device and method and belongs to the technical field of clad material continuous casting. A core product protecting device, a guide pipe, a reverse coagulator and the like are installed on the side of a crucible, a core material is not heated in advance, the designed small-capacity reverse coagulator is used for preventing the core material from penetrating a cladding layer metal melt for a long period of time, the melt flows out of the side of the bottom of the crucible by relying on self weight, the sizes of the reverse coagulator and a water-cooling crystallizer are effectively regulated and controlled, and other measures are adopted, so that a high-quality clad material with required shape and size is formed through continuous casting. The clad material solid / liquid composite continuous-casting forming device is simple in structure, convenient to operate and maintain, reasonable and compact in layout, high in production efficiency, low in investment, short in forming process, energy-saving, environment-friendly, efficient and low in cost, parts are easy to replace, automatic control is easy to achieve, large-scale industrial production is facilitated, combination freedom degree of cladding layer metal and core material metal is high, and the prepared clad material is good in quality and performance.

Description

technical field [0001] The invention belongs to the technical field of continuous casting of coating materials, and in particular relates to a solid / liquid composite continuous casting forming equipment and method for coating materials. 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 life. It is a key development direction of composite materials at present. [0003] The traditional cladding material forming methods mainly include core material surfac...

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

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.

Moreover, there is a common shortcoming in the above-mentioned existing composite casting methods that use clad metal melt to continuously clad the formed solid core material, that is, it is impossible to realize the continuous casting of large-sized clad materials that are difficult to coil. casting

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