Low-melting-point metal wire for 3D printing

A technology of low melting point metal and metal wire, applied in metal processing equipment, 3D object support structure, additive processing, etc., can solve the problem that metals cannot be printed together at the same time

Active Publication Date: 2018-12-21
YUNNAN KEWEI LIQUID METAL VALLEY R & D CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, metals in the prior art cannot achieve simultaneous joint printing with materials such as plastics

Method used

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  • Low-melting-point metal wire for 3D printing
  • Low-melting-point metal wire for 3D printing
  • Low-melting-point metal wire for 3D printing

Examples

Experimental program
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Effect test

Embodiment 1

[0041] This embodiment relates to a low-melting-point metal wire for 3D printing, which is prepared from the following raw materials in terms of mass percentage: 40% Bi, 35% Sn, and the rest is In.

[0042] This embodiment also relates to the preparation method of this metal wire, comprising the following steps:

[0043] 1) Add 40kg of pure Bi, 35kg of pure Sn, and 25kg of pure In raw materials weighed into a 200kg melting furnace, totaling 100kg, add 100g of ZnCl2 melting covering agent, heat to 350°C, and keep warm for 30min.

[0044] 2) Stir the obtained melt for 30 minutes, remove the surface covering agent, and pour it into a mold to make a low-temperature metal ingot.

[0045] 3) extruding the ingot obtained in step (2) into strips and filaments on an extruder.

[0046] The metal wire prepared in this embodiment can ensure that the mechanical properties such as strength and toughness of the wire are relatively good, which is beneficial to the printing operation of the wir...

Embodiment 2

[0048] This embodiment relates to a low-melting-point metal wire for 3D printing, prepared from the following raw materials in terms of mass percentage: Bi 40%, Sn 35%, Zn 0.2%, Al 0.15%, Cu 0.1%, P 0.15%, The rest are In.

[0049] This embodiment also relates to the preparation method of this metal wire, comprising the following steps:

[0050] 1) Add 40kg of pure Bi, 35kg of pure Sn, 200g of pure Zn, 150g of pure Al, 100g of pure Cu, 150g of pure P, and 24.4kg of pure In into a 200kg smelting furnace, totaling 100kg, and add 100g of ZnCl2 for melting and covering agent, heated to 650°C, and kept warm for 30min.

[0051] 2) Stir the obtained melt for 30 minutes, remove the surface covering agent, and pour it into a mold to make a low-temperature metal ingot.

[0052] 3) Extrude the ingot obtained in step (2) into strips and filaments on the extruder, and its structure is shown in figure 1 .

[0053] The metal wire prepared in this embodiment can ensure that the mechanical...

Embodiment 3

[0055] This embodiment relates to a low-melting-point metal wire for 3D printing, which is prepared from the following raw materials in terms of mass percentage: Bi 40%, Sn 34%, Ag 0.1%, Zn 0.5%, Al 0.1%, Cu 0.1%, The rest are In.

[0056] This embodiment also relates to the preparation method of this metal wire, comprising the following steps:

[0057] 1) Add 40kg of pure Bi, 34kg of pure Sn, 100g of pure Ag, 500g of pure Zn, 100g of pure Al, 100g of pure copper, and 25.2kg of pure In into a 200kg smelting furnace, totaling 100kg, and add 100g of ZnCl2 for melting and covering agent, heated to 650°C, and kept warm for 30min.

[0058] 2) Stir the obtained melt for 30 minutes, remove the surface covering agent, and pour it into a mold to make a low-temperature metal ingot.

[0059] 3) extruding the ingot obtained in step (2) into strips and filaments on an extruder.

[0060] The metal wire prepared in this embodiment can ensure that the mechanical properties such as strength...

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Abstract

The invention relates to a low-melting-point metal wire for 3D printing. The low-melting-point metal wire is prepared from raw materials comprising the following contents of, by weight, 20-45% of Bi,25-40% of Sn, and the balance In complemented to 100%. The melting point of the metal wire is 75-100 DEG C, by adjusting the relative content of Bi, Sn and In, the hardness and the tensile strength ofthe metal wire can be effectively improved, the demands of circuit printing, three-dimensional metal structural part printing and functional structural part printing combined with plastic can be met,and the low-melting-point metal wire has wide application prospects and high commercial promotion value.

Description

technical field [0001] The invention relates to the technical field of 3D printing of metal raw materials, in particular to a low-melting-point metal wire for 3D printing. Background technique [0002] 3D printing is a technology that uses bondable materials such as powdered metal or plastic to construct objects by layer-by-layer printing based on digital model files. It works basically the same as ordinary printing. The printer is equipped with "printing materials" such as wires or liquids or powders. Blueprints become real. At present, it is widely used in mold manufacturing, industrial design, automotive electronics, aerospace and other fields. [0003] The current 3D printing of metal materials generally adopts the method of laser rapid prototyping, that is, irradiating the surface of the test piece with a high-power laser, melting the metal powder, forming a liquid molten pool, and then moving the laser beam to melt the powder in front and let the metal in the back co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/115B33Y70/00C22C1/02C22C1/06C22C30/04C22C30/06B29C64/118
CPCB22F3/115B33Y70/00B29C64/118C22C1/02C22C1/06C22C12/00C22C30/04C22C30/06
Inventor 耿家维郭文波张俊蔡昌礼邓中山
Owner YUNNAN KEWEI LIQUID METAL VALLEY R & D CO LTD
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