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A post-processing method for additively manufactured ceramic parts

A technology for additive manufacturing and ceramic parts, which is applied in the field of post-processing of additive manufacturing ceramic parts, can solve problems such as cumbersome processes, and achieve the effects of solving high porosity, improving practicability, and strong operability

Active Publication Date: 2016-08-24
HUNAN FARSOON HIGH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The infiltration of the ceramic component melt should fully consider the interface bonding and compatibility between the ceramic matrix and the metal material, and in the conventional process, after the impregnation is completed, the processed component needs to be roughed, semi-finished, and finished. and other process steps, the process is very cumbersome

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0020] Configure CuNiTi alloy with a mass percentage of 45:20:35, place the configured metal block in a vacuum melting furnace, and evacuate to 8.0×10 -3 Below Pa, fill in argon to repeatedly flush the furnace chamber 3 times, melt the alloy under an argon atmosphere of 90KPa, stir the alloy and repeatedly smelt 5 times.

[0021] The prepared alloy block was polished with sandpaper and cleaned with ethanol, and then placed in a quartz glass tube with a diameter of 0.6mm, and then the quartz tube with the alloy was placed in the induction heating ring of the vacuum belt throwing machine, and the nozzle and copper The distance between the rollers is 0.5 mm.

[0022] Close the furnace chamber door of the stripping machine, and when the vacuum is pumped to 8.0×10 -3 Turn on the high-frequency power supply at Pa to melt the alloy in the quartz glass tube, and keep the alloy in a molten state for 1-2 minutes, so that the composition of the molten alloy is sufficiently uniform. Sta...

Embodiment example 2

[0028] Configure TiZrCuNi alloy, its mass percentage is 36:28:21:15, place the configured metal block in a vacuum melting furnace, and vacuumize to 8.0×10 -3 Below Pa, fill in argon to repeatedly flush the furnace chamber 3 times, melt the alloy under an argon atmosphere of 90KPa, stir the alloy and repeatedly smelt 5 times.

[0029] The prepared alloy block was polished with sandpaper and cleaned with ethanol, and then placed in a quartz glass tube with a diameter of 0.7mm, and then the quartz tube with the alloy was placed in the induction heating ring of the vacuum stripping machine, and the nozzle and copper The distance between the rollers is 0.6 mm.

[0030] Close the furnace chamber door of the stripping machine, and when the vacuum is pumped to 8.0×10 -3 Turn on the high-frequency power supply at Pa to melt the alloy in the quartz glass tube, and keep the alloy in a molten state for 1-2 minutes, so that the composition of the molten alloy is sufficiently uniform. Sta...

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PUM

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Abstract

The invention relates to an after-treatment method of an additive manufactured ceramic part. The after-treatment method is characterized by comprising the steps of mixing two or more than two metals according to a given mass ratio, and vacuum smelting the metals to obtain alloy; heating the obtained alloy to a molten state, spraying the molten alloy to a rotating cooling roller to obtain thin-strip alloy, crushing the thin-strip alloy, and screening the crushed alloy to obtain the alloy particles of an appropriate particle size; burying the alloy particles in an upper and a lower layer infiltration system so as to infiltrate the additive manufactured ceramic part; and finally annealing the ceramic part to obtain a final component. By adopting the method, the infiltration of the ceramic part can be conveniently and effectively completed, and a ceramic-based composite material part with good performance can be acquired.

Description

technical field [0001] The invention relates to a post-processing method for additive manufacturing of ceramic parts. Background technique [0002] The use of additive manufacturing methods to manufacture ceramic parts adopts such a method: ceramic materials and binder materials are mixed together, and three-dimensional parts are finally formed by processing the mixed materials layer by layer. In the process, each layer The connection of the processing surface and the connection between the layers is completed by the adhesive, and the adhesive realizes the bonding function through melting and solidification or through mutual reaction. After finishing the production of this kind of ceramic shape, if you want to get a clean ceramic part, you need to remove the binder in the shape, usually degrease by heating, and then sinter the degreased parts to improve the yield. density. The advantage of this preparation method is that complex shapes of ceramic parts can be obtained with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/24
Inventor 许小曙邓振华苏婷边宏
Owner HUNAN FARSOON HIGH TECH CO LTD