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3DP printing method based on purple sand

A 3DP, purple sand technology, applied in the field of additive manufacturing, can solve the problems that the purple sand mud paste cannot be stored for a long time, cannot print fine models, and the texture of the outer layer of the model is heavy, and achieves good market prospects, simple and easy to implement and easy to save. Effect

Pending Publication Date: 2022-05-10
BEIJING HENGCHUANG ADVANCED MATERIALS & ADDITIVE MFG INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has three obvious disadvantages. First, the printed model has heavy texture on the outer layer and the accuracy of the model is not good. Second, support is required during the printing process, and the formed structure is limited by the support structure, so it cannot print particularly complicated Fine model; third, the purple sand mud paste used for printing cannot be stored for a long time, which is easy to cause waste of materials

Method used

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  • 3DP printing method based on purple sand
  • 3DP printing method based on purple sand
  • 3DP printing method based on purple sand

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Prepare 3DP printing powder materials according to the following mass percentages:

[0026] Zisha raw ore particles 55%

[0027] Zisha mud dry powder 37%

[0028] Polyvinyl alcohol 8%

[0029] The dried purple sand raw ore is directly crushed and ground, and sieved to obtain purple sand raw ore particles with a mesh size of 80 mesh to 200 mesh. Dry or air-dry the stale purple sand mud strips or mud blocks, grind them, and pass through a 200-mesh sieve to obtain dry powder of purple sand mud with a size of more than 200 mesh. Then weigh each powder raw material as required, mix evenly, and prepare 3DP printing powder material.

[0030] (2) Prepare 3DP printing binder according to the following mass percentage:

[0031]

[0032] The above raw materials are weighed by mass, mixed evenly until transparent, and the 3DP printing adhesive is prepared.

[0033] (3) 3DP printing

[0034] Put the prepared 3DP printing powder material and 3DP printing binder into the ...

Embodiment 2

[0038] (1) Prepare 3DP printing powder materials according to the following mass percentages:

[0039] Zisha raw ore particles 85%

[0040] Zisha mud dry powder 5%

[0041] Polyvinyl alcohol 10%

[0042] The dried purple sand raw ore is directly crushed and ground, and sieved to obtain purple sand raw ore particles with a mesh size of 80 mesh to 200 mesh. Dry or air-dry the stale purple sand mud strips or mud blocks, grind them, and pass through a 200-mesh sieve to obtain dry powder of purple sand mud with a size of more than 200 mesh. Then weigh each powder raw material as required, mix evenly, and prepare 3DP printing powder material.

[0043] (2) Prepare 3DP printing binder according to the following mass percentage:

[0044]

[0045] The above raw materials are weighed by mass, mixed evenly until transparent, and the 3DP printing adhesive is prepared.

[0046] (3) 3DP printing

[0047] Put the prepared 3DP printing powder material and 3DP printing binder into the ...

Embodiment 3

[0051] (1) Prepare 3DP printing powder materials according to the following mass percentages:

[0052] Zisha raw ore particles 65%

[0053] Zisha clay dry powder 22%

[0054] Polyvinyl alcohol 13%

[0055]The dried purple sand raw ore is directly crushed and ground, and sieved to obtain purple sand raw ore particles with a mesh size of 80 mesh to 200 mesh. Dry or air-dry the stale purple sand mud strips or mud blocks, grind them, and pass through a 200-mesh sieve to obtain dry powder of purple sand mud with a size of more than 200 mesh. Then weigh each powder raw material as required, mix evenly, and prepare 3DP printing powder material.

[0056] (2) Prepare 3DP printing binder according to the following mass percentage:

[0057]

[0058] The above raw materials are weighed by mass, mixed evenly until transparent, and the 3DP printing adhesive is prepared.

[0059] (3) 3DP printing

[0060] Put the prepared 3DP printing powder material and 3DP printing binder into the...

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Abstract

The invention discloses a 3DP printing method based on purple sand, and relates to the field of additive manufacturing. Purple sand raw ore particles, purple sand mud dry powder and polyvinyl alcohol are adopted to form a printing powder material, and an adhesive is prepared from one of deionized water, polyvinylpyrrolidone, glycerin / polyethylene glycol and one of ethyl alcohol / isopropyl alcohol; printing powder is put into a powder supply cylinder and a forming cylinder of a printer, and powder in the cylinders is spread out through a powder spreading roller; the binder is loaded into an ink box of the printer, in the printing process, when a powder laying roller completes laying of one layer, a spray head can spray a fixed amount of binder in a designated area under the control of a computer, printing powder can be condensed when meeting the binder, and so on; and taking out after the model is hardened, airing the model, and sintering. The method is simple and easy to implement, high in efficiency, high in product precision and good in market prospect.

Description

technical field [0001] The invention relates to the field of additive manufacturing, in particular to a 3DP printing method based on purple sand. Background technique [0002] Additive Manufacturing (AM) technology, commonly known as 3D printing technology, is an emerging technology that is rapidly developing in the manufacturing field. Based on digital model files, this technology constructs objects through layer-by-layer printing, and can simply and quickly produce complex three-dimensional structures that have been difficult to produce with various processing methods. And there is no need for machining or any molds in the production process, and less waste is generated, which can effectively shorten the product production cycle, improve production efficiency, reduce production costs, and increase product diversity, especially in single-piece small batch production. [0003] With the development of the times and the progress of society, people have developed a variety of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/04C04B33/13B33Y10/00B33Y70/10
CPCC04B33/04C04B33/13C04B33/1305B33Y10/00B33Y70/10C04B2235/6026C04B2235/6562C04B2235/6567C04B2235/661
Inventor 张苗苗黄新朵杨奇龙南阳瑞谢峰林赵新薛彦芳梁吉祥李腾飞
Owner BEIJING HENGCHUANG ADVANCED MATERIALS & ADDITIVE MFG INST CO LTD
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