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Three-dimensional airbag body and manufacturing method thereof

A production method and airbag technology, applied in the field of materials, can solve problems such as poor plasticity, easy immersion of stains, poor shape stability, etc., and achieve the effect of increasing air permeability and improving the degree of fusion

Inactive Publication Date: 2017-09-08
李其龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the existing airbag structure has the following disadvantages: poor plasticity, poor shape stability after compression; the outer surface of the airbag is easily damaged, and dirt is easy to immerse

Method used

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  • Three-dimensional airbag body and manufacturing method thereof
  • Three-dimensional airbag body and manufacturing method thereof
  • Three-dimensional airbag body and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Select polyurethane as raw material and distribute it in extrusion blowpipe.

[0047] Connect the extrusion piece to the end of the extrusion blowpipe away from the extrusion port, and squeeze the hot melt plastic in the extrusion blowpipe to the extrusion exit. A ventilation pipe is arranged in the extrusion blowing pipe, and the two ends of the ventilation pipe communicate with the atmosphere and the extrusion port respectively. A heating element is arranged on the surface of the ventilation pipe facing the extrusion blowing pipe, and the heating element heats the hot-melt plastic around the heating element by means of electric heating.

[0048] Inject compressed gas into the vent tube. Compressed gas expands the heated hot-melt plastic at the extrusion port of the extrusion blowpipe under the condition of 100KPa, and then seals, fuses, cuts and separates to obtain a hollow air bag with a diameter of 2mm and an air bag wall thickness of 6% of the diameter.

[0049] ...

Embodiment 2

[0051] Styrene is selected as the raw material and distributed in the extrusion blowpipe.

[0052] Connect the screw to the end of the extrusion blowpipe away from the extrusion port, and extrude the hot melt plastic in the extrusion blowpipe to the extrusion exit. A ventilation pipe is arranged in the extrusion blowing pipe, and the two ends of the ventilation pipe communicate with the atmosphere and the extrusion port respectively. A heating element is arranged on the surface of the ventilation pipe facing the extrusion blowing pipe, and the heating element heats the hot-melt plastic around the heating element by means of electric heating.

[0053] Inject compressed gas into the vent tube. Compressed gas expands the heated hot-melt plastic at the extrusion port of the extrusion blowpipe under the condition of 200KPa, and then seals, fuses, cuts and separates to obtain a hollow air bag with a diameter of 20mm and an air bag wall thickness of 15% of the diameter. Then heat-t...

Embodiment 3

[0056] Select non-elastic plastic as raw material and distribute it in extrusion blowpipe.

[0057] Connect the screw to the end of the extrusion blowpipe away from the extrusion port, and extrude the hot melt plastic in the extrusion blowpipe to the extrusion exit. A ventilation pipe is arranged in the extrusion blowing pipe, and the two ends of the ventilation pipe communicate with the atmosphere and the extrusion port respectively. A heating element is arranged on the surface of the ventilation pipe facing the extrusion blowing pipe, and the heating element heats the hot-melt plastic around the heating element by means of electric heating.

[0058] Inject compressed gas into the vent tube. Compressed gas expands the heated hot-melt plastic at the extrusion port of the extrusion blowpipe under the condition of 500KPa, and then seals, fuses, cuts and separates to obtain a hollow air bag with a diameter of 11mm and a wall thickness of 10.5% of the diameter. Then heat-treat t...

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Abstract

The invention relates to a three-dimensional airbag body and a manufacturing method thereof, belonging to the field of materials. The above-mentioned production method includes: heating the hot-melt plastic in the extrusion blowpipe, feeding compressed gas into the extrusion blowpipe to make the hot-melt plastic expand at the extrusion mouth of the extrusion blowpipe, cutting and separating after sealing to obtain a hollow air bag. A plurality of hollow air pockets are placed in a thermocompression fusion mold and filled with gas at 200-1000°C to melt the surface of the hollow air pockets, and then pressurize the hollow air pockets in the thermocompression fusion mold to make the adjacent hollow air pockets The surfaces are fused to each other, resulting in a three-dimensional balloon body. The preparation method is simple, easy to operate and the process is controllable. The surface of the three-dimensional airbag body produced by the above method is smooth, has good antifouling effect, is not easy to be scratched, has strong supporting effect, is durable and beautiful.

Description

technical field [0001] The invention relates to the field of materials, in particular to a three-dimensional airbag body and a manufacturing method thereof. Background technique [0002] At present, the existing airbag structure has the following disadvantages: poor plasticity and poor shape stability after compression; the outer surface of the airbag is easily damaged and stains are easily infiltrated. [0003] Therefore, it is necessary to improve the structure of the existing airbag and the method thereof. Contents of the invention [0004] The object of the present invention is to provide a method for manufacturing a three-dimensional airbag body, which is simple, easy to operate and process controllable. [0005] Another object of the present invention is to provide a three-dimensional airbag body manufactured by the above manufacturing method. The three-dimensional airbag body has a smooth surface, good anti-fouling effect, is not easy to scratch, has a strong suppo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C49/04B29L22/02
CPCB29C49/04B29L2022/027
Inventor 李其龙
Owner 李其龙
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