Colorful low-melting-point metal wire for 3D printing and preparation method thereof

A low-melting-point metal and 3D printing technology, applied in the field of 3D printing, can solve problems such as single color, achieve the effects of reducing the yield of finished products, inhibiting dynamic recovery or recrystallization, and reducing the ability of atomic diffusion and migration

Active Publication Date: 2019-06-18
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the low-melting-point metal wires used earlier all have a relatively single color, which cannot meet the color requirements for various occasions compared to engineering plastics with rich colors.

Method used

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  • Colorful low-melting-point metal wire for 3D printing and preparation method thereof
  • Colorful low-melting-point metal wire for 3D printing and preparation method thereof
  • Colorful low-melting-point metal wire for 3D printing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] This embodiment relates to a preparation method of a liquid metal wire, including the following steps, the specific process see figure 1 :

[0034] 1) Pure bismuth, indium, tin and zinc metals are formulated in a mass ratio of 35:48.6:15.9:0.4 to make 1kg of raw materials with an alloy melting point of about 58°C. In addition, 100g of cinnabar with a diameter of 400nm and 25g of titanium with a diameter of 600nm Put them together in a vacuum melting furnace and heat them to 200°C for melting, and stir the solution from time to time to make them fully mixed. Keep argon flowing during the entire stirring process to avoid oxidation of the melt; after melting, cast the alloy into a round rod with a diameter of 20mm, and place the round rod in liquid nitrogen to cool until the temperature is -10°C;

[0035] 2) After the cooling treatment, the round bar is passed through a rolling mill to roll the alloy into a bar with a diameter of 6mm, and the rolling deformation of each p...

Embodiment 2

[0038] This embodiment relates to a method for preparing a liquid metal wire, comprising the following steps:

[0039] 1) Prepare pure bismuth, indium and tin metals with a mass ratio of 53.6:30.3:16.1 to make 1 kg of raw materials with an alloy melting point of about 83°C. In addition, 100g of cinnabar with a diameter of 400nm and 25g of titanium with a diameter of 600nm are placed in vacuum melting Melt in a furnace heated to 300°C and stir the solution from time to time to mix thoroughly. Keep argon flowing throughout the stirring process to avoid oxidation of the melt. After the smelting is completed, the alloy is cast into a round rod with a diameter of 20mm, and the round rod is cooled in liquid nitrogen until the temperature is -20°C;

[0040] 2) The processed round bar is passed through a rolling mill to roll the alloy into a bar with a diameter of 4 mm, and the rolling deformation in each pass is 10%, and the bar should be put back into liquid nitrogen for low-temper...

Embodiment 3

[0043] This embodiment relates to a method for preparing a liquid metal wire, comprising the following steps:

[0044]1) Prepare 1 kg of raw material with pure bismuth and indium metal at a mass ratio of 34:66 to prepare an alloy with a melting point of about 74 ° C. In addition, 100 g of cinnabar with a diameter of 400 nm and 25 g of titanium with a diameter of 600 nm are placed in a vacuum melting furnace and heated to Melting was carried out at 230°C, and the solution was stirred from time to time to mix thoroughly. Keep argon flowing throughout the stirring process to avoid oxidation of the melt. After the smelting is completed, the alloy is cast into a round rod with a diameter of 20mm, and the round rod is cooled in liquid nitrogen until the temperature is -30°C;

[0045] 2) The processed round bar is passed through a rolling mill to roll the alloy into a bar with a diameter of 8 mm, and the rolling deformation in each pass is 5%, and the bar should be put back into liq...

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Abstract

The invention relates to a colorful low-melting-point metal wire for 3D printing and a preparation method thereof, and belongs to the field of metal material 3D printing. The main improvement is thatcolorful low-melting-point metal is maintained below 0 DEG C in the machining process of the colorful low-melting-point metal wire. The material is formed by mixing low-melting-point metal, colorful pigment and nanometer electric conducting particles; and then, through molding by a machining method, the metal printing wire with electric conductivity, rich colors and a certain strength is finally prepared. In addition, equipment related to the invention is traditional industrial common equipment, so that the equipment refitting process is reduced, the industrialization possibility is effectively improved, the 3D printing application range is effectively widened, and the industrial value is prominent.

Description

technical field [0001] The invention belongs to the field of 3D printing, and in particular relates to a colored low-melting point wire material for 3D printing. Background technique [0002] 3D printing (3Dimensional Printing, 3DP) technology is also known as rapid prototyping technology (Rapid Prototyping, RP) or additive manufacturing technology (Additive Manufacturing, AM). The so-called "additive manufacturing" means that it is different from the traditional "removal" manufacturing. It does not require original embryos and molds. It can directly generate objects of any shape by adding materials based on computer graphics data. The biggest advantage is that it can simplify the manufacturing process. Shorten the new product development cycle, reduce development costs and risks. Compared with the traditional manufacturing process, 3D printing saves raw materials, only 1 / 3 to 1 / 2 of the original materials, and the manufacturing speed is 3 to 4 times faster. [0003] 3D pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/04B22F3/115B33Y70/00
Inventor 史金涛刘静
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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