Manufacturing method for high polymer material three-dimensional product

A technology of polymer materials and manufacturing methods, applied in processing and manufacturing, manufacturing tools, additive manufacturing, etc., can solve the problems of complex temperature control technology in the forming space, poor bonding strength between layers of finished products, and limited range of material selection. Achieve the effects of avoiding thermal deformation, relaxing requirements, and eliminating the need for gas supply devices

Active Publication Date: 2017-05-24
陈勃生 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its main advantages are: it can manufacture objects with complex shapes, which is suitable for personalized customization; the main disadvantages are: SLS technology needs to use laser and galvanometer systems, the temperature control technology of the forming space is complicated, and atmosphere protection is required, so the cost is high. It is difficult to avoid thermal stress deformation in the final cooling process; SLA technology also needs to use laser and galvanometer systems, which are expensive, need to use photosensitive resin, and the range of material selection is limited; FDM technology products have poor interlayer bonding strength; POLYJET The technology has special requirements on the nozzle, and the cost is relatively high

Method used

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  • Manufacturing method for high polymer material three-dimensional product
  • Manufacturing method for high polymer material three-dimensional product
  • Manufacturing method for high polymer material three-dimensional product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Please refer to the attached figure 1 , the technical solution is divided into the following steps:

[0049] 1. Discrete the three-dimensional design graphics of the product to be processed into a series of two-dimensional horizontal cross-sectional graphics, and input them into the forming device control computer;

[0050] 2. Load the uniformly mixed powdered EVA hot melt adhesive (polymer material), graphite (conductive material), gypsum (inorganic cementitious material) and other raw materials into the forming device. The ratio of the three is: 5.5:1.5:3 ;

[0051] 3. The powder spreading mechanism in the forming device spreads the powdery raw material into a uniform thin layer with a thickness of about 0.1mm;

[0052] 4. The nozzle or nozzle group array in the forming device sprays the water-based coagulant on the specific area corresponding to the solid part of the cross-section of the product on the above-mentioned thin layer of powder, and the gelling material ...

Embodiment 2

[0059] Please refer to the attached figure 2 , the technical solution is divided into the following steps:

[0060] 1. Discrete the three-dimensional design graphics of the product to be processed into a series of two-dimensional horizontal cross-sectional graphics, and input them into the forming device control computer;

[0061] 2. The filamentous or granular nylon 12 (polymer material) and aluminum powder (conductive material) mixed material that has been uniformly mixed and made is loaded into the forming device, and the ratio of the two is: 7:3;

[0062] 3. Extrude the mixed material of molten nylon 12 and aluminum powder onto the forming plane with an extrusion-type thermal nozzle, and cool to form a thin layer of a corresponding cross-section at a certain height of the blank to be produced;

[0063] 4. The previous step will be repeated until the blank forming process of the product is completed;

[0064] 5. Take out the blank to be finished from the forming device; ...

Embodiment 3

[0069] Please refer to the attached image 3 , the technical solution is divided into the following steps:

[0070] 1. Evenly mix the mixed material consisting of powdered phenolic resin (polymer material), graphite (conductive material), Portland cement (inorganic cementitious material) containing about 10% urotropine, and the ratio of the three is: 5.5:1.5:3;

[0071] 2. The above-mentioned mixture is evenly stirred with an appropriate amount of water-based coagulant, and then poured into a silicone mold of a corresponding shape;

[0072] 3. The slurry is hardened in the silicone mold to form the blank of the three-dimensional product;

[0073] 4. Take out the product blank and place it in a humid environment for several days;

[0074] 5. Put the cured blank into the induction furnace. Under the action of the alternating electromagnetic field, the graphite particles in the blank generate eddy current and generate heat, which makes the blank rapidly rise to the melting poi...

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Abstract

The invention discloses a manufacturing method for a high polymer material three-dimensional product. According to the method, a blank of the three-dimensional product is obtained through an additive manufacturing method or a mold forming method firstly, and the base materials of the blank comprise mixed high polymer materials and conductive materials. Secondly, the blank is put in an electromagnetic environment, the blank is heated until the high polymer materials are fused through an electromagnetic induction method, and the high polymer materials are fused and soak the other materials in the blank. Afterwards, the materials are slowly cooled to the room temperature, and therefore the three-dimensional product of which the shape is the same as that of the blank and the mechanical performance mainly depends on the high polymer materials is formed.

Description

technical field [0001] The invention relates to the technical field of polymer material product forming, in particular to a method for manufacturing a three-dimensional product of polymer material. Background technique [0002] Polymer material products are widely used in various fields of social production and life. [0003] The common manufacturing methods of polymer material products mainly include: mechanical cutting method, injection molding method and additive manufacturing method. [0004] The mechanical cutting method is to cut the blank made of polymer composite material, remove the redundant part, and the remaining part is the finished product. The main advantage is that the finished product can obtain high processing accuracy, and the main disadvantage is that it is difficult or impossible to process products with extremely complex shapes, and a large amount of chips are generated during the processing process, resulting in waste of materials. [0005] The injec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/106B29C64/141B29C64/295B33Y10/00B33Y70/00
Inventor 陈勃生陈叶
Owner 陈勃生
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