A method for cladding metal entities on mesh modules with wire

Abstract

In the wire material additive forming of the present invention, the high energy density, strong directivity and precise control of the electron beam processing heat source are utilized, and the heat input and the wire are controlled by controlling the inclination angle of the mesh module in the vertical plane. The feeding quantity of the material can precisely control the energy distribution of the electron beam on the surface of the original cladding metal and the mesh module, so that the molten metal liquid and the mesh module can achieve metallurgical combination without damaging the original mesh and its Catalyst plating structure. The invention includes the following steps: placing the mesh module between two plugs, and making the mesh module and the two plugs fixedly connected together; melting the wire material to complete a layer of metal mesh cladding metal entity ; Accumulate the cladding metal entity layer by layer until the mesh module and the two plugs are connected to form a mesh assembly; remove the two plugs of the mesh assembly, and then process the cladding formed metal entity to the required level size, that is, to complete the cladding of metal entities on the mesh module.

Description

technical field [0001] The invention relates to the technical field of additive manufacturing, in particular to a method for cladding a metal entity with wire material on a mesh module. Background technique [0002] In the chemical industry, various catalysts are commonly used to increase the reaction efficiency during chemical reactions. The catalytic effect of the catalyst is directly related to the contact surface between the catalyst and the solution to be reacted. In order to improve the actual use efficiency of the catalyst, the catalyst is often attached to the metal mesh structure in the form of a coating layer, and superimposed layer by layer. Effect. In practical applications, the metal mesh to which the catalyst is attached is usually fixed in the pipeline, and the solution to be reacted is allowed to quickly pass through the mesh assembly formed by superimposing the metal mesh. [0003] At present, two ways are usually used to superimpose and fix the metal mesh...

AI Technical Summary

Problems solved by technology

[0008] The main problem of laser coaxial powder feeding is that the powder particles will remain inside the mesh assembly during forming, which is difficult to clean. At the same time, the energy density of the laser coaxial powder feeding process is low, and the surface tension of the molten metal formed after the powder material is melted is relatively high. Large, easy to gather into drops, difficult to spread out to form a flat and effective molten pool, and difficult to form

[0009] The arc fuse avoids the harm caused by powder due to the use of wire forming, but because the arc energy density is low and the arc has the characteristics of arc discharge, and the surface of the metal mesh module is not smooth, the discharge electrode is easy to fall on the mesh module. Occurs between the wire or tungsten electrode, which burns the metal mesh itself, making it difficult to form

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