Colored metal 3D printing wire and preparing method thereof

Abstract

The invention relates to a colored metal 3D printing wire and a preparing method thereof. The colored metal 3D printing wire is formed by mixing and freezing low-melting-point metal, pigments and nanometer conductive particles in sequence, and therefore the wire with the specific mechanical strength, the specific cross section shape and the specific length size is prepared; and various specific colors can be shown while electric conduction and the mechanical strength are achieved. The initially-provided metal printing wire having the electric conductivity and being rich in color can obviously improve the attractiveness and the experience sense of a prepared terminal functional device, the 3D mechanical printing characteristic of the wire is ensured, the metal electric conductivity is achieved, meanwhile, colored conductive printing parts can be directly manufactured, a novel 3D printing category can be started, and the application value is obvious.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, and in particular relates to a color metal 3D printing wire and a preparation method thereof. Background technique [0002] 3D printing, also known as additive manufacturing, has become a core field that is widely valued at home and abroad due to its unique advantages in rapid prototyping and manufacturing. Among the various types of 3D printing, metal printing in particular is recognized as the crown. At present, the commonly used materials in the existing 3D printing process are mainly non-conductive plastic wires, such as ABS, PLA, etc., which are generally used to make plastic models or parts, but cannot be used to make conductive electronic devices. On the other hand, the use of traditional metal consumables, because of its high melting point, such as thousands of degrees, relies on special printing equipment that is usually expensive and complicated, and it is difficult to promote it t...

AI Technical Summary

Problems solved by technology

[0003] However, it is a pity that the latest advances in the liquid metal used to make wires have a relatively single color, which cannot meet the color requirements of users in various occasions.

In the 3D printing industry, based on such factors, the industry has introduced 3D printing filaments with rich colors, but the existing filaments so far are mainly non-metallic filaments made of plastics, polymers, etc., so they cannot be directly used for the needs. Printing of conductive objects

At the same time, the industry has recently gradually proposed the concept of colored liquid metal ink (such as the color liquid metal announced by Chinese Patent Publication No. CN105220013A), but this ink is embodied in liquid form and cannot be used in 3D printers like plastic wire rods; That is to say, the functions of the ink and the wire are completely different, and there are substantial differences in the components, production methods and application links of the final functional product; moreover, even if the existing liquid metal ink is made into a wire, its mechanical strength is often not enough. Meet the mechanical strength requirements of existing 3D printers

Generally speaking, there is no color metal printing filament that can be used for conventional 3D printers at home and abroad so far.

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