Powdered material for three-dimensional printing and configuration method thereof

A powder material, 3D printing technology, applied in additive processing, casting molding equipment, casting molds, etc., can solve the problems of insufficient mechanical properties, single product components, poor thermal conductivity, etc., achieve fast solidification, ensure uniformity, improve The effect of mechanical properties

Active Publication Date: 2018-10-30
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

[0029] For the powder material for 3D printing in this plan, the main material is 99.5% chrome ore, and the auxiliary material is 0.5% aluminum powder. The particle size ratio (mass percentage) of the two is configured according to the following ratio:

[0030] ≤60 mesh 0.4%

[0031] >60 mesh and ≤80 mesh 5%

[0032] >80 mesh and ≤100 mesh 45%

[0033] >100 mesh and ≤140 mesh 35%

[0034] >140 mesh and ≤200 mesh 13%

[0035] >200 mesh 1.6%

[0036] The preparation and detection process of the powder material are as follows:

[0037] (1) Mix the powder material in this ratio in a mechanical mixer;

[0038] (2) Add 3D printing equipment for sand printing;

[0039] (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

[0041] For the powder material for 3D printing in this plan, the main material is quartz sand, accounting for 95%, and the auxiliary material is iron powder, accounting for 5%. The particle size ratio (mass percentage) of the two is configured according to the following ratio:

[0042] ≤60 mesh 0%

[0043] >60 mesh and ≤80 mesh 18%

[0044] >80 mesh and ≤100 mesh 34%

[0045] >100 mesh and ≤140 mesh 42%

[0046] >140 mesh and ≤200 mesh 6%

[0047] >200 mesh 0%

[0048] The preparation and detection process of the powder material are as follows:

[0049] (1) Mix the powder material in this ratio in a mechanical mixer;

[0050] (2) Add 3D printing equipment for sand printing;

[0051] (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

[0053] For the powder material for 3D printing in this plan, the main material is 98% chrome ore, and the auxiliary material is 2% graphite powder. The particle size ratio (mass percentage) of the two is configured according to the following ratio:

[0054] ≤60 mesh 1%

[0055] >60 mesh and ≤80 mesh 16%

[0056] >80 mesh and ≤100 mesh 26%

[0057] >100 mesh and ≤140 mesh 42%

[0058] >140 mesh and ≤200 mesh 13%

[0059] >200 mesh 2%

[0060] The preparation and detection process of the powder material are as follows:

[0061] (1) Mix the powder material in this ratio in a mechanical mixer;

[0062] (2) Add 3D printing equipment for sand printing;

[0063] (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 rate is 11.6%.

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Abstract

The invention relates to a powdered material for three-dimensional printing. The powdered material comprises a main material and an auxiliary material; the main material is a main material of printingfilling, and can be metal powder, coated ceramic powder, precoated sand, nylon powder, quartz sand and the like; the auxiliary material is a material playing a role in heat conduction, electricity conduction and mechanical property improving and can be diamond, silver, copper, aluminum, graphite, iron and the like; the granularity of the powdered material is configured according to a certain proportion, within the matching range of the granularity, according to the allocation ratio of the auxiliary material to the main material, the auxiliary material ranges from 0.5 to 5%, and the main material ranges from 95% to 99.5%. According to the configuration scheme, the compacting degree and the strength of three-dimensional printing products can be improved, the good heat conduction is achieved, and in the subsequent use process, the more excellent heat conduction and mechanical properties are achieved.

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 Applications(China)
IPC IPC(8): B22C1/02B33Y70/00B22F1/00
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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