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Method for removing printing metal, ceramic product metal, ceramic powder and polymer mixed material and polymer from finished product

A technology of ceramic products and molded products, which is applied in the manufacture of ceramics and their composite materials, and in the field of metals. It can solve the problems of expensive materials, little practical value in industry and life, and restrictions on the rapid development and industrialization of 3D manufacturing.

Inactive Publication Date: 2014-09-24
JIANGSU TIANYI ULTRA FINE METAL POWDER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

ABS resin and gypsum powder products can only be used as concept and decoration products, and have little practical value in industry and life. Laser sintering metal powder is only suitable for a few types such as titanium alloy; the above materials for printing are expensive
These factors limit the rapid development and industrialization of 3D manufacturing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Print and manufacture iron-based products. Material material carbonyl iron powder and melt decomposition polymer binder system combined blend material. Carbonyl iron powder with a volume ratio of 60%, and the combined volume of the polymer binder system accounted for 40%, of which: polypropylene with a mass ratio of 7%, and polyethylene wax with a mass ratio of 3%, were pre-mixed in a mixer for 1 hour, and kneaded Machine kneading at 230°C for 1 hour, evenly put ABS resin with a mass ratio of 90% in the polymer binder system, kneading at 220°C for 1 hour, and transfer the material to an internal mixer for 0.5 hours at 220°C to obtain Blended material; then transfer the blended material to the extruder, extrude a blended material wire with a diameter of 1.75mm, and cool and wind it for later use; use the wound wire for hot-melt 3D printing to obtain a pre-designed product; The product is put into a vacuum furnace and removed at 280°C for 8 hours to remove the main compo...

Embodiment 2

[0036] Print and manufacture stainless steel products. Material material 316L stainless steel powder and acid-catalyzed removal of the main component of the polymer binder system combined blend material. 316L stainless steel powder with a volume ratio of 65%, the combined volume of the polymer binder system accounts for 35%, of which: low-density polyethylene with a mass ratio of 5%, and polyisobutylene amine with a mass ratio of 3% are premixed in a mixer for 1 hour, and put into The kneader is kneaded at 220°C for 1 hour, evenly put in the polymer binder system to combine the mass ratio of 92% polyethylene terephthalate, kneaded at 160°C for 1 hour, and the output is transferred to the internal mixer at 165°C The blended material was obtained by banburying for 0.5 hours; then the blended material was transferred to the extruder, and the blended material wire with a diameter of 3mm was extruded, cooled and wound for later use; the wound wire was used for hot-melt 3D printing ...

Embodiment 3

[0038]Printing and manufacturing ceramic products. Material material Zirconia powder is combined with a polymer binder system that removes the main components by hydrolysis. Zirconia powder with a volume ratio of 58%, the combined volume of the polymer binder system accounts for 42%, of which: low-density polyethylene with a mass ratio of 8%, and polyisobutylene with a mass ratio of 3% are premixed in a mixer for 1 hour, and kneaded Machine kneading at 220°C for 1 hour, uniformly put in the polymer binder system to combine the mass ratio of 89% caprolactam, kneading at 80°C for 1 hour, transfer the material to the internal mixer and knead at 85°C for 0.5 hour to obtain a blend Material; then transfer the blended material to the extruder, extrude the blended material wire with a diameter of 1.75mm, cool and wind it for later use; use the wound wire for hot-melt 3D printing to obtain a pre-designed product; place the product Enter the hydrolysis removal furnace, introduce water...

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Abstract

The invention discloses a method for removing printing metal, ceramic product metal, mixed material of ceramic powder (as a material component) and a polymer adhesive agent and the polymer adhesive agent from a finished printing product. According to the method, the mixed material comprises components in a volume ratio as follows: 40%-70% of material components and 30%-60% of the polymer adhesive agent which comprises components in a mass ratio of 50%-95% of main materials removed at the lower temperature, 4.5%-46% of auxiliary materials removed at the higher temperature and 0.5%-4% of auxiliaries; the mixed material is subjected to mixing and banburying to obtain filaments, pipes, bars, balls and blocks for printing forming; and the finished product obtained by printing is subjected to molten decomposition, water decomposition or acid catalysis at the lower temperature to remove the main polymer adhesive agent, is subjected to molten decomposition at the higher temperature to remove the auxiliary polymer adhesive agent and the auxiliaries, and is sintered to obtain a target product. The printing material has a wide source, is low in price, reduces the cost greatly and facilitates development of 3D (three-dimensional) manufacture.

Description

technical field [0001] The invention relates to a kind of material product which uses three-dimensional printing technology to print metal, ceramics and its complex (mixed) powder and polymer binder, and then removes the polymer binder and sinters to obtain metal, ceramics and their products. A method of manufacturing a composite article. Background technique [0002] Three-dimensional printing (3D manufacturing) is currently the hottest new manufacturing technology. Some people think that its importance is no less than that of the personal computer in 1977 and the web browser in 1990. It is called the third industrial revolution. Because it does not require molds, it is mainly suitable for rapid manufacturing of small batches (even single pieces) and products with complex shapes. Its core technology mainly focuses on two aspects of equipment and materials. The materials currently used mainly include light-curable ABS resin, gypsum powder and its binder, and metal powder f...

Claims

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Application Information

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IPC IPC(8): B22F3/22
Inventor 高为鑫王飞戴静
Owner JIANGSU TIANYI ULTRA FINE METAL POWDER
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