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Back cover and side ornamental plate of car trunk and manufacturing process thereof

A manufacturing process and a side trim panel technology are applied to the rear cover and side trim panel of an automobile trunk and the manufacturing process thereof, which can solve the problems of poor toughness, short service life and easy falling off of the back cover and the side trim panel, and achieve the Beautiful appearance, ensure stability, and ensure the effect of quality

Inactive Publication Date: 2019-05-17
上海华迎汽车零部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The back cover and side trim in the prior art solution have the following defects: During the production process, the back cover and side trim are prone to unilateral tensile stress and deformation due to the composite protective film on one side during their use , which leads to poor toughness of the back cover and side trim, easy to fall off, and short service life

Method used

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  • Back cover and side ornamental plate of car trunk and manufacturing process thereof
  • Back cover and side ornamental plate of car trunk and manufacturing process thereof
  • Back cover and side ornamental plate of car trunk and manufacturing process thereof

Examples

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Embodiment 1

[0046] A rear cover and a side trim of a car trunk include a CPP base material 1, and the upper and lower layers of the CPP base material 1 are respectively provided with a carpet surface layer 2 and a spunlace non-woven fabric layer 3 in combination. The back cover and the side trim play a role of tension offset and protection for the CPP substrate 1 through the carpet surface layer 2 and the spunlace non-woven fabric layer 3 .

[0047] Both the carpet surface layer 2 and the spunlace non-woven fabric layer 3 are composed of multiple layers of PET fiber layers, and the density of the carpet surface layer 2 is 160-200g / m 2 , the preferred density is 180g / m 2 , the density of the spunlace nonwoven layer 3 is 35-55g / m 2 , the preferred density is 45g / m 2 . Due to the high density of the carpet surface layer 2, the number of composite layers of the PET fiber layer is more, the density is higher, and the surface is smoother, while the number of composite layers of the spunlace ...

Embodiment 2

[0051] A manufacturing process for a rear cover and a side trim of a car trunk, comprising the following steps:

[0052] Step 1. Feeding: PP material and wood powder are mixed as raw materials and put into the stirring device. Among them, the mixing ratio of PP material and wood flour is 9:1. The PP material and wood flour are quickly mixed by a stirring device to form a CPP base material 1 .

[0053]Step 2, dissolving and extruding: the extruder dissolves the raw materials and extrudes the CPP base material 1 in a molded state. After the CPP base material 1 is melted at high temperature, it is extruded by an extruder, and the CPP base material 1 is pulled out in a long strip.

[0054] Step 3: Composite: The two sides of the CPP base material 1 are respectively extruded by the shaping device to form the back cover or the side trim. Wherein, the sizing device includes a middle roller 21, and the upper and lower positions of the middle roller 21 are respectively provided with...

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Abstract

The invention discloses a back cover and a side ornamental plate of a car trunk and a manufacturing process thereof and relates to the technical field of a trim panel of an automobile, and solves theproblem that original back cover and side ornamental plate are poor in toughness. The back cover and the side ornamental plate comprise a CPP base material. A blanket surface layer and a spunlace non-woven fabric layer are separately arranged on the upper and lower surface layers of the CPP base material in a compounded manner. The density of the blanket surface layer is 160-200 g / m<2>, and the density of the spunlace non-woven fabric layer is 35-55 g / m<2>. By compounding the blanket surface layer and the spunlace non-woven fabric layer on the double sides of the CPP base material, the blanketsurface layer is smooth in surface and faces a user if being mounted, so that the blanket surface layer is attractive and comfortable. The spunlace non-woven fabric layer is coarse in surface and great in friction force, and the lower layer of the spunlace non-woven fabric layer faces a metal plate of the automobile body if being mounted, so that the spunlace non-woven fabric layer is attached stably. The CPP base material can counteract tension stress initiated by compounding the single layer previously as a result of the double-layered compound design, so that the stability of the double faces of the CPP base material is ensured, and the toughness of the CPP base material is improved further. The using safety of the CPP base material is ensured, and an extra protecting action is also exerted.

Description

technical field [0001] The invention relates to the technical field of automotive interior trim panels, in particular to a rear cover and a side trim panel of an automotive trunk and a manufacturing process thereof. Background technique [0002] In most of the current passenger cars, in order to meet the customer's aesthetic requirements for the interior layout of the vehicle, an interior panel made of plastic is usually installed on the inner side of the vehicle's body sheet metal. The design of interior panels not only has a direct impact on the artificial sensory effect inside the cabin, but also plays an important role in the sound insulation, heat insulation, and vibration reduction of the car body. [0003] These interior trim panels have different shapes, structures and effects according to the position of the car structure. For example, in the trunk of a car, in order to prevent customers from directly seeing the sheet metal parts in the trunk of the car, an interio...

Claims

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Application Information

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IPC IPC(8): B60R13/02B29D7/01
Inventor 郑伟刘崇高刘启超
Owner 上海华迎汽车零部件有限公司