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Method for producing automotive rear shelf

A production method and rear shelf technology, which is applied to vehicle components, transportation and packaging, etc., can solve the problems of not meeting the shape requirements of the rear shelf, large shrinkage deformation, and heavy weight, so as to achieve not easy deformation, reduced weight, and high strength Effect

Active Publication Date: 2011-02-02
WUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing rear shelves are directly pressed and formed by single-layer wood powder board after heating. The disadvantages are
Heavy weight, high price, thin thickness, large shrinkage deformation (cannot meet the shape requirements of some cars for the rear shelf)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment one: a kind of production method of automobile rear shelf, comprises the following steps:

[0017] Product specifications: L1000×W 550mm (where L is the length and W is the width);

[0018] (1) Heating: Hang the glued PP wood powder board in a double-layer oven for heating. The temperature of the upper layer of the double-layer oven is 240°C, the temperature of the lower layer is 325°C, and the heating time is 95 seconds;

[0019] (2) Compression molding: Lay the non-woven fabric on two layers of glued PP wood powder boards, and press them in the mold to obtain semi-finished products. The pressure of compression molding is 70kg / cm 2 , the molding time is 70 seconds;

[0020] (3) Cooling and shaping: the semi-finished product is cooled and shaped at room temperature, and the cooling time is 30 seconds;

[0021] (4) Attachment installation: install the attachment on the semi-finished product to obtain the finished car rear shelf.

[0022] (5) Inspection and ...

Embodiment 2

[0023] Embodiment two: a kind of production method of automobile rear shelf, comprises the following steps:

[0024] Product specification: L1000×W 550mm

[0025] (1) Heating: Hang the glued PP wood powder board in a double-layer oven for heating. The temperature of the upper layer of the double-layer oven is 260°C, the temperature of the lower layer is 345°C, and the heating time is 85 seconds;

[0026] (2) Compression molding: Lay the non-woven fabric on two layers of glued PP wood powder boards, and press them in the mold to obtain semi-finished products. The pressure of compression molding is 90kg / cm 2 , the molding time is 60 seconds;

[0027] (3) Cooling and shaping: the semi-finished product is cooled and shaped at room temperature, and the cooling time is 50 seconds;

[0028] (4) Attachment installation: install the attachment on the semi-finished product to obtain the finished car rear shelf.

Embodiment 3

[0029] Embodiment three: a kind of production method of automobile rear shelf, comprises the following steps:

[0030] Product specification: L1000×W550mm

[0031] (1) Heating: Hang the glued PP wood powder board in a double-layer oven for heating. The temperature of the upper layer of the double-layer oven is 250°C, the temperature of the lower layer is 330°C, and the heating time is 90 seconds;

[0032] (2) Compression molding: Lay the non-woven fabric on two layers of glued PP wood powder boards, and press them in the mold to obtain semi-finished products. The pressure of compression molding is 80kg / cm 2 , the molding time is 65 seconds;

[0033] (3) Cooling and shaping: the semi-finished product is cooled and shaped at room temperature, and the cooling time is 40 seconds;

[0034] (4) Attachment installation: install the attachment on the semi-finished product to obtain the finished car rear shelf.

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PUM

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Abstract

The invention relates to a method for producing an automotive rear shelf. The method is characterized by comprising the following steps of: (1) heating: hanging polypropylene sheets in a two-layer drying oven and heating, wherein the temperature of an upper-layer drying oven of the two-layer drying oven is between 240 and 260 DEG C; the temperature of a lower-layer drying oven of the two-layer drying oven is between 325 and 345 DEG C; and the heating time is 85 to 95 seconds; (2) pressing and forming: laying a fabric on two layers of PP sheets flatly, and pressing and forming the fabric in a die to obtain a half-finished product, wherein the pressure during pressing and forming is 70 to 90kg / cm<2>, and the forming time is 60 to 70 seconds; (3) cooling and shaping: cooling and shaping the half-finished product at the normal temperature, wherein the cooling time is 30 to 50 seconds; (4) installing accessories: installing the accessories on the half-finished product to obtain an automotive rear shelf finished product; and (5) examining and packing, wherein the fabric is a non-woven fabric, and the PP sheets are PP wood powder sheets with glue. The method ensures the performance indexes of light weight, high strength, difficult contraction distortion and the like of a rear shelf, greatly reduces the weight of the rear shelf, and meets the requirement for lightweight vehicle design; and as the material has a double-layer wood powder sheet structure, the product is fuller.

Description

technical field [0001] The invention relates to a production method of an automobile rear shelf, in particular to a production method of a rear shelf installed behind a car seat and below a rear windshield, and belongs to the technical field of automobile interior decorations. Background technique [0002] Automotive interior parts are generally installed on the top of the car, the trunk, and the cab to play the role of heat insulation, sound insulation, aesthetics and practicality. In the era of more and more pursuit of high performance, environmental protection, energy saving, lightweight, and individualization, the interior of a car, like the shape of a car, has become an important factor for people to choose a car. Therefore, the requirements for automotive interior parts are getting higher and higher. In the prior art, performance indicators such as low weight and high strength of the rear shelf have become bottlenecks, restricting the development of the rear shelf. M...

Claims

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Application Information

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IPC IPC(8): B29C51/10B29C51/46B60R13/08
Inventor 林晓
Owner WUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD
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