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A kind of powder material for three-dimensional printing and configuration method thereof

A powder material and three-dimensional printing technology, which is applied in the direction of additive processing, casting molding equipment, manufacturing tools, etc., can solve the problems of insufficient mechanical properties, single product components, poor thermal conductivity, etc., achieve light weight, ensure uniformity, and improve The effect of mechanical properties

Active Publication Date: 2021-02-19
NINGXIA KOCEL MOLD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of single product components, poor thermal conductivity, high cost, and insufficient mechanical properties in the 3D printing materials in the prior art, the present invention provides a powder material for 3D printing, and the product parts printed by the powder material for 3D printing Composed of multiple components, good heat dissipation performance, less cold and solid defects, excellent comprehensive mechanical properties, low cost, and high operating efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] For the powder material for 3D printing in this scheme, the main material is 99.5% of chrome ore, and the auxiliary material is 0.5% of aluminum powder. The particle size ratio (mass percentage) of the two is configured according to the following ratio:

[0028] ≤60 mesh 0.4%

[0029] >60 mesh and ≤80 mesh 5%

[0030] >80 mesh and ≤100 mesh 45%

[0031] >100 mesh and ≤140 mesh 35%

[0032] >140 mesh and ≤200 mesh 13%

[0033] >200 mesh 1.6%

[0034] The preparation and detection process of the powder material are as follows:

[0035] (1) Mix the powder material of this proportioning in a mechanical mixer;

[0036] (2) Add 3D printing equipment for sand printing;

[0037] (3) Take out the printed test block, and check that its compressive strength is 6.3MPa, its thermal conductivity is 8-9W / m·K, and its gap rate is 10.8%.

Embodiment 2

[0039] For the powder material for 3D printing in this scheme, quartz sand is used as the main material with a proportion of 95%, and iron powder is used as an auxiliary material with a proportion of 5%. The particle size ratio (mass percentage) of the two is configured according to the following ratio:

[0040] ≤60 mesh 0%

[0041] >60 mesh and ≤80 mesh 18%

[0042] >80 mesh and ≤100 mesh 34%

[0043] >100 mesh and ≤140 mesh 42%

[0044] >140 mesh and ≤200 mesh 6%

[0045] >200 mesh 0%

[0046] The preparation and detection process of the powder material are as follows:

[0047] (1) Mix the powder material of this proportioning in a mechanical mixer;

[0048] (2) Add 3D printing equipment for sand printing;

[0049] (3) Take out the printed test block, and check that its compressive strength is 6.5MPa, its thermal conductivity is 14-16W / m·K, and its gap rate is 12.8%.

Embodiment 3

[0051] For the powder material for 3D printing in this scheme, the main material is 98% of chrome ore, and the auxiliary material is 2% of graphite powder. The particle size ratio (mass percentage) of the two is configured according to the following ratio:

[0052] ≤60 mesh 1%

[0053] >60 mesh and ≤80 mesh 16%

[0054] >80 mesh and ≤100 mesh 26%

[0055] >100 mesh and ≤140 mesh 42%

[0056] >140 mesh and ≤200 mesh 13%

[0057] >200 mesh 2%

[0058] The preparation and detection process of the powder material are as follows:

[0059] (1) Mix the powder material of this proportioning in a mechanical mixer;

[0060] (2) Add 3D printing equipment for sand printing;

[0061] (3) Take out the printed test block, and check that its compressive strength is 5.8MPa, its thermal conductivity is 9-10W / m·K, and its gap ratio is 11.6%.

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Abstract

The invention relates to a powder material for three-dimensional printing, including main material and auxiliary material, wherein the main material is the main material for printing and filling, which can be metal powder, coated ceramic powder, coated sand, nylon powder, quartz sand, etc.; The material is a material that conducts heat, conducts electricity, and improves mechanical properties. It can be diamond, silver, copper, aluminum, graphite, iron, etc. The particle size of this powder material is configured according to a certain ratio, and the configuration ratio of auxiliary materials and main materials is 0.5%-5% for auxiliary materials and 95%-99.5% for main materials within the ratio range of each particle size. This configuration scheme can improve the compactness and strength of 3D printed products, and has good thermal conductivity, and also has better thermal conductivity and mechanical properties in subsequent use.

Description

technical field [0001] The invention relates to a three-dimensional printing material, in particular to a powder material for three-dimensional printing and a configuration method thereof. Background technique [0002] Three-dimensional printing technology is a rapid prototyping technology, and the applied technologies include 3DP technology, SLS selective laser sintering, FDM fusion lamination molding technology, LOM technology, SLA technology, DLP laser molding technology and UV ultraviolet molding technology. Among them, the 3D printing technology that uses powder materials for printing has a wide range of applications, mainly using technologies such as droplet jetting, powder particle bonding, and energy curing to achieve forming. In the forming process, the powder particles and the curing agent are mixed and stirred first, and then a layer of powder particle material with a fixed thickness is laid, and then the binder is selectively sprayed on the laid powder particle l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C1/02B33Y70/10B33Y70/00B22F1/00
CPCB22C1/02B22F1/0003B33Y70/00
Inventor 王彦涛刘轶鲁云郭永斌毛春生
Owner NINGXIA KOCEL MOLD
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