Productive technology of automobile rear shelf

A production process and rear shelf technology, which is applied in the field of automotive interior parts, can solve the problems that the load capacity of the product cannot meet the requirements, affect the health of passengers, and be unfavorable for the lightweight of the whole vehicle, so as to achieve good rigidity, reduce weight, and not easily broken effect

Active Publication Date: 2011-01-26
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

[0003] In the prior art, the rear shelf generally adopts materials such as polypropylene wood powder board and hemp fiber board as the supporting base material. This kind of technology mainly has the following problems: 1. The load bearing cap

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: a kind of production technology of automobile rear shelf, comprises the following steps:

[0023] Product specification: L1300×W650

[0024] (1) Paving: Lay the glass fiber mat on the lower mold, fix the glass fiber mat and reinforcing ribs on the upper mold; the grammage of the glass fiber mat is: 300 g / m 2 ;

[0025] (2) Polyurethane material spraying: Spray polyurethane material evenly on the glass fiber mat of the lower mold, and the spraying amount of polyurethane material is 1600g / ㎡;

[0026] (3) Compression molding: Press the glass fiber mat and reinforcing ribs into a semi-finished product in the mold. The upper mold temperature is 53°C, the lower mold temperature is 53°C, the molding time is 470 seconds, and the heating water temperature is: 55°C;

[0027] (4) Cooling and setting: Take out the semi-finished product after pressing from the mold, put it on the cooling fixture for cooling and setting at room temperature, cooling and setting time: ...

Embodiment 2

[0034] Embodiment 2: a kind of production technology of automobile rear shelf, comprises the following steps:

[0035] Product specification: L1300×W650

[0036] (1) Spreading material: spread the glass fiber mat on the lower mold, and fix the glass fiber mat and reinforcing ribs on the upper mold; the grammage of the glass fiber mat is: 320 g / m 2 ;

[0037] (2) Polyurethane material spraying: Spray polyurethane material evenly on the glass fiber mat of the lower mold, and the spraying amount of polyurethane material is 1700g / ㎡;

[0038] (3) Compression molding: Press the glass fiber mat and reinforcing ribs into a semi-finished product in the mold. The upper mold temperature is 63°C, the lower mold temperature is 63°C, the molding time is 460 seconds, and the heating water temperature is: 75°C;

[0039] (4) Cooling and setting: Take out the pressed semi-finished product from the mold, put it on the cooling fixture for cooling and setting at room temperature, cooling and se...

Embodiment 3

[0046] Embodiment 3: a kind of production technology of automobile rear shelf, comprises the following steps:

[0047] Product specification: L1300×W650

[0048] (1) Spreading material: spread the glass fiber mat on the lower mold, and fix the glass fiber mat and reinforcing ribs on the upper mold; the grammage of the glass fiber mat is: 310g / m 2 ;

[0049] (2) Polyurethane material spraying: Spray polyurethane material evenly on the glass fiber mat of the lower mold, and the spraying amount of polyurethane material is 1650g / ㎡;

[0050] (3) Compression molding: Press the glass fiber mat and reinforcing ribs into a semi-finished product in the mold. The upper mold temperature is 60°C, the lower mold temperature is 60°C, the molding time is 465 seconds, and the heating water temperature is: 65°C;

[0051] (4) Cooling and setting: Take out the semi-finished product after pressing and forming from the mold, put it on the cooling fixture for cooling and setting at room temperatu...

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Abstract

The invention relates to a productive technology of an automobile rear shelf, which comprises the following steps: (1) laying a glass fiber mat on a lower die and fixing the glass fiber mat and a reinforcing rib on an upper die; (2) evenly spraying polyurethane on the glass fiber mat on the lower die; (3) compressing the glass fiber and the reinforcing rib in a die to form semi-finished products;(4) taking the semi-finished products subject to compression moulding out of the die, and placing the semi-finished products on a cooling jig for carrying out cooling and moulding at normal temperature; (5) polishing the semi-finished products subject to cooling and moulding to smooth the surfaces of the semi-finished products; (6) evenly spraying glue on the two sides of the polished semi-finished products; (7) binding linings on the two sides of the semi-finished products on which glue is sprayed; (8) punching fiber bundles of the glass fiber mat exposed at the edge of the semi-finished products subject to lining binding; (9) installing pull ropes on the punched semi-finished products to obtain the finished products; and (10) inspecting and carrying out vanning. The productive technology of the invention can save manufacturing cost and has the advantages of environmental protection and no pollution.

Description

technical field [0001] The invention relates to a production process of a car rear shelf, in particular to a production process of a rear shelf installed at the rear of a car and used for placing articles, and belongs to the technical field of car interior parts. Background technique [0002] The car rear shelf is generally installed at the rear of the car to play the role of placing items and beautifying. 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. [0003] In the prior art, the rear shelf generally adopts materials such as polypropylene wood powder board and hemp fiber board as the supporting base material. This kind of technology mainly has the following problems: 1. The load-carrying capac...

Claims

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Application Information

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IPC IPC(8): B32B37/12B32B38/04B32B17/02B32B17/12B32B27/12B32B27/40D06N3/14B60R13/00
Inventor 万京
Owner WUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD
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