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Ultra-light fiberboard compounding process and compounding device

A composite device and composite process technology, which is applied in the production field of automotive interior materials, can solve problems such as difficult product warping, and achieve the effects of difficult product warping, good finished product quality, and reduction of surface spots.

Pending Publication Date: 2020-08-28
绍兴欣亚行汽车配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides an ultra-light fiberboard compounding process and compounding device, which is evenly coated and can be applied to the requirements of plates of different thicknesses.

Method used

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  • Ultra-light fiberboard compounding process and compounding device
  • Ultra-light fiberboard compounding process and compounding device
  • Ultra-light fiberboard compounding process and compounding device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1, the heating temperature is 100°C, the ambient temperature of the workshop is 25°C, the humidity is 30%, the pressure during pressing is set to 20Mpa, the pressing time is 45s, the thickness of PVC film is 0.08mm, the thickness of GMT board is 0.4mm, fiberboard and The covering films are bonded by hot melt adhesive. The weight of the finished product after compounding is 1425 ± 3% g / m 2 , Lighter than traditional plates, maximum deformation ≤ 15mm, tensile strength ≥ 85MPa, flexural modulus ≥ 4000 MPa, impact strength ≥ 700J / m, the performance results of each test are far higher than the technical standards.

Embodiment 2

[0026] Example 2, the heating temperature is 130°C, the ambient temperature of the workshop is 15°C, the humidity is 28%, the pressure during pressing is set to 15Mpa, the pressing time is 50s, the thickness of PVC film is 0.15mm, the thickness of GMT board is 0.6mm, fiberboard and The covering films are bonded by hot melt adhesive. The weight of the finished product after compounding is 1680 ± 4% g / m 2 , Lighter than traditional plates, maximum deformation ≤ 14mm, tensile strength ≥ 102MPa, flexural modulus ≥ 5000 MPa, impact strength ≥ 800J / m, the test performance results are far higher than the technical standards.

Embodiment 3

[0027] Example 3, the heating temperature is 115°C, the ambient temperature of the workshop is 20°C, the humidity is 32%, the pressure during pressing is set to 18Mpa, the pressing time is 40s, the thickness of PVC film is 0.16mm, the thickness of GMT board is 0.5mm, fiberboard and The covering films are bonded by hot melt adhesive. The weight of the finished product after compounding is 1550 ± 3% g / m 2 , Lighter than traditional plates, maximum deformation 15mm, tensile strength ≥ 95MPa, flexural modulus ≥ 4500 MPa, impact strength ≥ 750J / m, the test performance results are far higher than the technical standards.

[0028]An ultra-light fiberboard composite device, the cladding machine includes a frame, along which a conveying device 1, a dust removal device, a heating device 4, a gluing device 5, a pressing device 6 and an online Cutting device 8. The fiber board automatically passes through the machine through the conveying device 1, and the surface of the fiber board is ...

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Abstract

The invention discloses an ultra-light fiberboard compounding process and a compounding device. A fiberboard is placed in a coating machine, the fiberboard and a coating film are pressed and formed after being heated, then coating is conducted, the heating temperature is 100-130 DEG C, the workshop environment temperature is 15-25 DEG C, the humidity is 30% + / -2%, the pressure during pressing is set to be 15-20 MPa, and the pressing time is not shorter than 35 s. According to the invention, the fiberboard and the coating film can be compounded through low-temperature setting; the coating machine is provided with a liftable and movable hairbrush dust removal device, so that the dust removal effect of fiberboards with different thicknesses can be met; and a gluing device is provided with a gap adjusting device, so that the distance between glue rollers can be slightly and accurately adjusted to adapt to gluing of fiberboards with different thicknesses. The compounding device is uniform in gluing, thorough in dust removal, suitable for compounding fiberboards with different thicknesses, good in finished product quality, not prone to product edge warping and the like.

Description

technical field [0001] The invention relates to the technical field of production of automotive interior materials, and more specifically relates to an ultra-light fiberboard composite process and a composite device. Background technique [0002] Roof and side rear wall panels are important components of automotive interior panels. Their functions are to decorate the interior space of the vehicle and at the same time play a role in heat insulation, noise reduction, and improvement of riding comfort and safety. With the increasing demand for lightweight vehicles, GMT (Glass mat reinforced thermoplastics) materials have been widely used because of their light weight, environmental protection, sound absorption and heat insulation, high strength and toughness, and excellent chemical corrosion resistance. This type of product is generally composed of a resin base layer, a buffer layer and a surface decoration layer. The layers are composited by hot pressing. In order to ensure th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/12B32B37/10B32B38/00B32B37/06B08B1/04
CPCB32B37/12B32B37/10B32B38/0004B32B37/06B08B1/32B08B1/12
Inventor 缪国海
Owner 绍兴欣亚行汽车配件有限公司
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