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Composite material seat backrest framework and manufacturing method thereof

A seat back and composite material technology, applied in the direction of seat frames, metal processing, etc., can solve the problems of being easily damaged, not easy to form and process, etc., and achieve the effects of high mechanical properties, weight reduction, and good flame retardancy

Pending Publication Date: 2019-07-02
GUANGZHOU KINGFA CARBON FIBER NEW MATERIALS DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Continuous fiber reinforced thermoplastic resin is composed of fiber and resin. Most thermoplastic resins have low tensile strength, but have high toughness and plasticity; fibers have high tensile strength, but are easily damaged and Not easy to shape

Method used

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  • Composite material seat backrest framework and manufacturing method thereof
  • Composite material seat backrest framework and manufacturing method thereof
  • Composite material seat backrest framework and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0059] The preparation method of the above-mentioned composite seat back frame of the present invention comprises the following steps:

[0060] 1) Ingredients: Take one or more of polyolefin resins, thermoplastic polyesters, polyamides, polycarbonates, other general-purpose resins or high-performance engineering plastics with continuous ultra-high-strength glass fibers and silane coupling agents in mass proportions (40:50:1) Prepare the ingredients;

[0061] 2) Plate making: use conventional technology to make unidirectional continuous glass fiber reinforced thermoplastic resin prepreg; then select the appropriate number of layers of unidirectional continuous glass fiber reinforced thermoplastic resin prepreg according to the required plate thickness t = 25mm and heat press composite A continuous glass fiber reinforced thermoplastic composite panel is formed.

[0062] 3) Cutting and typesetting: use 3D modeling software to expand the space surface of the product into a plane ...

Embodiment 1

[0073] Design the composite material seat back frame 5°≤α≤10°; S=20cm; M=16cm; β=60°; the height of the concave arc section and the convex arc section is 3:5; the composite backboard height H: 100cm, the widest part of the composite backplane is W: 65cm. The backrest frame is formed by heat-compression compounding of 8 layers of unidirectional continuous glass fiber reinforced thermoplastic resin prepreg sheets.

[0074] The backrest frame prepared according to the above parameters is subjected to the energy absorption test of the backrest under the test conditions of the GB11550-2009 standard. Hit the product test area to ensure that the deceleration is greater than 80g and the action time is not greater than 3ms); under this condition, the peak value of the test is 53.1g<80g.

Embodiment 2

[0076] Design the composite material seat back frame 11°≤α≤15°°; S=20cm; M=16cm; β=45°; the height of the concave arc section and the convex arc section is 3:5; the composite backboard height H : 100cm, the widest part of the composite backplane is W: 65cm. The backrest frame is formed by hot-compression compounding of 8 layers of unidirectional continuous glass fiber reinforced thermoplastic resin prepreg;

[0077] The backrest frame prepared according to the above parameters is subjected to the energy absorption test of the backrest under the test conditions of the GB11550-2009 standard. Hit the product test area to ensure that the action time of the deceleration greater than 80g is not greater than 3ms); under this condition, the peak value of the test is 60.5g<80g.

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PUM

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Abstract

The invention discloses a composite material seat backrest framework. The composite material seat backrest frameworkcomprises a continuous glass fiber reinforced thermoplastic composite backboard. Thecomposite material seat backrest framework is characterized in that, a concave arc section is arranged on the upper portion of one face, facing the back of a passenger, of the continuous glass fiberreinforced thermoplastic composite backboard; a convex arc section is arranged on the lower portion of one face, facing the back of the passenger, of the continuous glass fiber reinforced thermoplastic composite board; the concave arc section and the convex arc section are connected as one piece so as to form the continuous glass fiber reinforced thermoplastic composite backboard of a curved-surface structure. Any point is selected from the curved-surface surface. At the above selected point, a circle with the diameter R thereof to be 50mm is taken on a tangent plane V which passes through theabove selected point. The circle is projected to the curved surface A along the normal direction of a tangent plane V. An acute included angle alpha between two farthest points on the edge of the intercepted space curved surface A1 and the two tangent planes where the curved surface is located on the two points is set to be alpha. The angle alpha is larger than or equal to 0 degree, and smaller than or equal to 15 degrees. Preferably, the angle alpha is larger than or equal to 5 degrees, and smaller than or equal to 10 degrees.

Description

technical field [0001] The invention relates to the technical field of vehicle accessories, in particular to a composite material seat back frame and a manufacturing method thereof. Background technique [0002] The car seat back frame serves as a core vehicle interior accessory. At present, in many applications of vehicle seats, the backrest frame of the seat is a frame structure made of metal, which is heavy and greatly increases the overall weight of the vehicle. At the same time, because the frame structure cannot be directly applied, it must be used in The frame structure is coated with sponge to improve the comfort of passengers; and because the backrest frame is a metal frame structure, when the rear passenger hits the back of the chair in front, due to the characteristics of the frame structure, it absorbs the impact force. The energy area is small, and the impact force cannot be dispersed, so that the passengers in the front seat are vulnerable to concentrated very...

Claims

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Application Information

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IPC IPC(8): B60N2/68B29C70/34B26D5/00
CPCB60N2/68B29C70/34B26D5/00
Inventor 黄险波范欣愉刘万光陈大华熊鑫李晓拓宋威
Owner GUANGZHOU KINGFA CARBON FIBER NEW MATERIALS DEV