Low-melting-point foam metal preparation device and method and low-melting-point foam metal

Abstract

The invention provides a low-melting-point foam metal preparation device and method and low-melting-point foam metal. The device comprises a container bottle, and the bottom of the container bottle isused for storing a foaming agent; a thin wire net is fixed to the inner side of the container bottle and used for bearing molten low-melting-point liquid metal; and gas volatilized through the foaming agent makes contact with the molten low-melting-point liquid metal through the thin wire net, the foaming agent conduct refrigeration in the volatilizing process, cooling is achieved when the gas passes through the molten low-melting-point liquid metal, the liquid metal is solidified when the temperature is lower than the melting point of the low-melting-point liquid metal, at the moment, part of the gas volatilized through the foaming agent is left in the metal, and accordingly, porous foam metal is obtained. According to the prepared low-melting-point foam metal, the preparation method issimple and quick, the temperature technology requirement is low, the process is easy to operate and control, and the obtained foam metal is high in porosity, light in structure, good in performance and suitable for multiple fields and industries.

Description

technical field [0001] The invention relates to the technical field of metal foam, in particular to a preparation device and method for metal foam with a low melting point and the metal foam with a low melting point. Background technique [0002] Metal foam refers to a special metal material with many pores inside. Through its unique structural characteristics, metal foam has a series of good advantages such as low density, high air permeability, small material bulk density, good heat insulation performance, good sound insulation performance, and ability to absorb electromagnetic waves. It is a category that has gradually developed with human science and technology. New materials are often used in aerospace, petrochemical, and environmental protection to manufacture purification, filtration, catalytic brackets, electrodes and other devices. [0003] Foam metal material is one of the common materials in life, it is composed of a solid frame and holes. The unique porous stru...

AI Technical Summary

Problems solved by technology

In particular, foamed copper is used as the base material of the battery electrode, which has some obvious advantages, but because the corrosion resistance of copper is not as good as that of nickel, some applications of it are limited.

[0007] Metal foams containing aluminum, nickel, copper and their alloys have certain disadvantages and shortcomings, such as high metal melting point temperature, high cost of metal materials, complicated preparation process, and serious corrosion phenomena, etc.

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