Method for improving adhesion quality of polymer three-dimensional printed product by using instant adhesive

A technology of 3D printing and bonding quality, applied in the direction of additive processing, etc., can solve the problems of poor bonding quality of products, reduced force strength, decreased bonding strength, etc., to achieve flexible addition positions, short curing time, and implementation handy effect

Active Publication Date: 2015-12-30
JIANGSU YONGHAO HIGH STRENGTH BOLT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the problem of molding quality of 3D printed products has not been effectively solved, especially the poor bonding quality of products will reduce its stress strength, making the strength of printed products lower than that of traditional processing (such as ordinary injection molding, etc.) overall strength of the product
[0007] Cyanoacrylate reactive adhesives belong to instant adhesives, which seem to meet the above requirements, but in practice, it is found that the process of direct addition is very strict, because its curing on the polymer melt still requires For a certain period of time, this makes it necessary to strictly control its application amount and the time gap of the printing process. Although it has been found that a more appropriate addition can indeed improve the bonding quality, it will also cause adhesion due to a slight deviation in the application amount or printing interval. Therefore, in order to directly apply the adhesive more conveniently, a more perfect method is still needed

Method used

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  • Method for improving adhesion quality of polymer three-dimensional printed product by using instant adhesive
  • Method for improving adhesion quality of polymer three-dimensional printed product by using instant adhesive
  • Method for improving adhesion quality of polymer three-dimensional printed product by using instant adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] First, the printing filament is manufactured. Weigh the raw materials according to the following weights: ABS: 990g, woody powdered activated carbon: 10g. After mixing ABS and wood powdery activated carbon, melt it in an ordinary plastic extruder, pass it through a head with a diameter of 3mm, and stretch it properly to obtain a wire with a diameter of 3mm. The melt temperature during the extrusion process is 190°C;

[0031] Secondly, compile the 3D model of ordinary tensile splines in the computer, select the layer thickness as 0.3mm in the control software of the 3D printer to divide it into 10 layers, and the software automatically calculates the printing path of each layer, except for the uppermost Except for the bottom layer, the printing direction between the other two layers is exactly opposite, thus forming a staggered printing path;

[0032] Again, add the filament into the 3D printer, control the temperature of the extrusion head of the printer to 250°C, the ...

Embodiment 2

[0037] First, the printing filament is manufactured. Weigh raw materials according to the following weights: ABS: 950g, woody powdered activated carbon: 50g. After mixing ABS and wood powdery activated carbon, melt it in an ordinary plastic extruder, pass it through a head with a diameter of 3mm, and stretch it properly to obtain a wire with a diameter of 3mm. The melt temperature during the extrusion process is 190°C;

[0038] Secondly, compile the 3D model of ordinary tensile splines in the computer, select the layer thickness as 0.3mm in the control software of the 3D printer to divide it into 10 layers, and the software automatically calculates the printing path of each layer, except for the uppermost Except for the bottom layer, the printing direction between the other two layers is exactly opposite, thus forming a staggered printing path;

[0039] Again, add the filament into the 3D printer, control the temperature of the extrusion head of the printer to 250°C, the temper...

Embodiment 3

[0044] First, the printing filament is manufactured. Weigh the raw materials according to the following weights: ABS: 900g, wood powdery activated carbon: 100g. After mixing ABS and wood powdery activated carbon, melt it in an ordinary plastic extruder, pass it through a head with a diameter of 3mm, and stretch it properly to obtain a wire with a diameter of 3mm. The melt temperature during the extrusion process is 190°C;

[0045] Secondly, compile the 3D model of ordinary tensile splines in the computer, select the layer thickness as 0.3mm in the control software of the 3D printer to divide it into 10 layers, and the software automatically calculates the printing path of each layer, except for the uppermost Except for the bottom layer, the printing direction between the other two layers is exactly opposite, thus forming a staggered printing path;

[0046] Again, add the filament into the 3D printer, control the temperature of the extrusion head of the printer to 250°C, the t...

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Abstract

The invention discloses a method for improving the adhesion quality of a polymer three-dimensional printed product by using an instant adhesive. The method comprises the following steps: (1) uniformly mixing polymer raw materials added with an adsorbent, and then printing filaments through common plastic extrusion; (2) putting the filaments prepared in the step (1) to a polymer three-dimensional printer, and carrying out layering according to a three-dimensional model to be printed to obtain three-dimensional processing data of each layer and then carrying out an operation of three-dimensional printing; (3) in a printing process, uniformly adding the instant adhesive to certain layer of several layers of an object to be printed. According to the method disclosed by the invention, the problem that the three-dimensional printed product internally has higher porosity can be solved by adding the instant adhesive, and therefore the adhesion quantity and a stress strength between two layers can be improved by adopting the method; from the view of the effect, the adhesion strength of the printed product can exceed over 30% of that of a common three-dimensional printed product, and the tensile strength of the printed product can basically reach that of a common injection.

Description

technical field [0001] The invention relates to a method for improving the bonding quality of polymer three-dimensional printing products by using an instant adhesive, and belongs to the technical field of three-dimensional printing and manufacturing of polymer materials. Background technique [0002] 3D printing technology is a kind of additive manufacturing technology, which is completely different from the traditional method in terms of manufacturing mode. It is based on the idea of ​​discrete / accumulation, and the CAD 3D model of the product is sliced ​​in layers along a certain direction through computer software, and each layer is obtained. The processing information of the cross-sectional profile is superimposed layer by layer by the 3D printer, so that prototypes or parts with certain functions can be processed quickly and accurately. As one of the rapid prototyping technologies, 3D printing technology can quickly obtain product prototypes, quickly respond to market ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00B33Y30/00
Inventor 周应国刘新川
Owner JIANGSU YONGHAO HIGH STRENGTH BOLT
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