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Manufacturing method of icositetrahedron helix structure foamy copper

A technology of icosahedral and helical structure is applied in the field of preparation of tetrahedral helical structure copper foam, which can solve the problem that the pore distribution of the foamed copper cannot be precisely controlled, and it is difficult to ensure the mechanical properties, porosity uniformity and porosity of the finished product of the foamed copper. problems such as poor connectivity, to achieve the effect of more diverse and controllable spatial arrangement, good connectivity, and low relative density

Inactive Publication Date: 2019-02-15
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing preparation methods cannot accurately control the pore distribution of foamed copper, the size of the pores is uneven, the porosity uniformity and connectivity are poor, and it is difficult to ensure the mechanical properties of the foamed copper product

Method used

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  • Manufacturing method of icositetrahedron helix structure foamy copper
  • Manufacturing method of icositetrahedron helix structure foamy copper
  • Manufacturing method of icositetrahedron helix structure foamy copper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Preparation of PLA skeleton: use fused deposition 3D printer to print the helical structure of the designed PLA material, with a layered thickness of 0.1mm, a cube with a range of 4×4×4cm, a period parameter of 2, and a curved surface thickness 1mm, curvature 0;

[0021] (2) Preparation of porous prefabricated blocks based on the helicoid structure: fix the helical structure obtained in step 1 in the mold, and pour the prepared gypsum slurry into the mold, in which gypsum, quartz glass, diatom The mass ratio of soil and refractory clay is 50:40:3:7, and a certain amount of mechanical vibration is applied; after the slurry is hardened, it is kept in a 200°C oven for 2 hours to melt the PLA material, and then pour out the PLA melt. and cleaned, then placed in a roasting furnace for roasting, heated up to 200°C at 5°C / min, then raised to 700°C at 5°C / min, kept for 4 hours, then cooled to 300°C at 6°C / min, kept for 5 hours , the porous prefabricated block based on the ...

Embodiment 2

[0026] (1) Preparation of the PLA skeleton: use the fused deposition 3D printer to directly print the helicoid structure of the designed PLA material, with a layered thickness of 0.1mm, a cube with a range of 4×4×4cm, a period parameter of 3, and a curved surface thickness 1mm, curvature 0.5;

[0027] (2) Preparation of porous prefabricated blocks based on the helicoid structure: fix the helical structure obtained in step 1 in the mold, and pour the prepared gypsum slurry into the mold, in which gypsum, quartz glass, diatom The mass ratio of soil and refractory clay is 50:40:3:7, and a certain amount of mechanical vibration is applied; after the slurry is hardened, it is kept in a 200°C drying oven for 2 hours to melt the helicoidal structure made of PLA. Then pour out the PLA melt, clean it, put it in a roasting furnace and roast it, raise the temperature to 200°C at 5°C / min, then raise the temperature to 700°C at 5°C / min, keep it for 4 hours, and then heat it at 6°C / min, Lo...

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Abstract

The invention discloses a manufacturing method of icositetrahedron helix structure foamy copper. The icositetrahedron helix structure foamy copper is a novel lightweight-structure function material with the icositetrahedron helix structure as the basis. The manufacturing method comprises the specific steps that a PLA material is used for 3D printing of the helical icositetrahedron structure; high-solid-phase low-viscosity gypsum plaster is fed into pores of the PLA icositetrahedron helix, and a needed preformed pattern is formed through drying; the PLA material in the preformed pattern is molten, a melt is poured out, the preformed pattern is placed in a metal mold, prepared copper alloy liquid is poured into the preformed pattern, pressure is exerted to the preformed pattern, and the gapsare filled with the metal liquid; after cooling, gypsum residues in the formed block are removed, and then the icositetrahedron helix structure foamy copper provided with certain pores and achievingthree-dimensional communication can be obtained. According to the manufacturing method of the icositetrahedron helix structure foamy copper, through change of the parameter of the icositetrahedron helix structure, the pore size, porosity, pore shape distribution and the like of the foamy copper are controlled, and the manufactured foamy copper can better meet industrial demands.

Description

technical field [0001] The invention relates to a method for preparing foamed copper, in particular to a method for preparing foamed copper with a helicoid structure. Background technique [0002] Copper foam is a new multifunctional material with a large number of connected or disconnected pores evenly distributed in the copper matrix. It has the characteristics of light weight, low density, porous and high specific strength, vibration reduction, sound absorption and energy absorption, etc. , and the advantages of its conductivity and ductility make copper foam have obvious advantages in being used as a base material for batteries as electrodes, and copper foam has a wide range of applications in automotive, aerospace, heat exchange, construction and other fields. Copper foam not only has good mechanical properties, but also has low preparation cost, and can be used to make catalyst carriers, electromagnetic shielding materials, heat exchangers, etc. The methods for prepar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/08C22C9/04
CPCC22C1/08C22C9/04C22C1/082
Inventor 叶喜葱熊金艳林咸参王童吴海华
Owner CHINA THREE GORGES UNIV