Method for carrying out scale production on canopy of upscale sedan

A manufacturing method and canopy technology, applied in chemical instruments and methods, lamination, superstructure sub-assembly, etc., can solve the problems of light weight, rigidity and sound absorption and other indicators that are difficult to meet, VOC can not meet environmental protection requirements, production Low efficiency and other problems, to achieve the effect of rich production methods and product types, improved acoustic comfort, and high production efficiency

Inactive Publication Date: 2013-01-16
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

[0002] The manufacturing method of the domestic car roof, one is a dry process with a high degree of automation, that is, the PU (polyurethane) or PP (polypropylene) sheet is heated in an oven and then the mold is cold-pressed. It is difficult to meet the requirements of high-end car products in terms of quantification, rigidity and sound absorption, and there are irreparable defects; the other is manual wet process. restrictions, low production efficiency, and VOC (volatile organic compound) emissions are far from meeting modern production and increasing environmental protection requirements

Method used

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  • Method for carrying out scale production on canopy of upscale sedan
  • Method for carrying out scale production on canopy of upscale sedan

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A large-scale manufacturing method of a high-end car roof of the present invention comprises the following steps:

[0020] a. Raw material preparation: prepare according to the first layer of non-woven fabric, the second layer of plastic film, the third layer of glass fiber, the fourth layer of PU foam (polyurethane foam), the fifth layer of glass fiber, and the sixth layer of non-woven fabric raw materials, and prepare polyurethane glue;

[0021] b. On-line mixing: The prepared raw materials are conveyed from six stations of the automatic wet roof production line at a conveying speed of 2m / min, and polyurethane is sprayed between the third layer of glass fiber and the fourth layer of PU foam Glue, compound and cut each layer of raw materials to form a material composite of the roof; composite pressure: 20Pa; temperature: normal temperature; water jet cutting pressure: 250Mpa; glue spraying amount: 70g / m 2 .

[0022] c. Molding: Send the material composite of the roof...

Embodiment 2

[0039] A large-scale manufacturing method of a high-end car roof of the present invention comprises the following steps:

[0040] a. Raw material preparation: Prepare raw materials according to the first layer of non-woven fabric, the second layer of plastic film, the third layer of glass fiber, the fourth layer of PU foam, the fifth layer of glass fiber, and the sixth layer of non-woven fabric, and prepare polyurethane glue;

[0041] b. On-line mixing: The prepared raw materials are conveyed from six stations of the automatic wet roof production line at a conveying speed of 3m / min, and polyurethane is sprayed between the third layer of glass fiber and the fourth layer of PU foam Glue, to compound and cut each layer of raw materials to form a material composite of the roof; composite pressure: 20Pa; temperature: normal temperature; water jet cutting pressure: 300Mpa; glue spraying amount: 100g / m 2 .

[0042] c. Molding: Send the material composite of the canopy into a mold ...

Embodiment 3

[0047] A large-scale manufacturing method of a high-end car roof of the present invention comprises the following steps:

[0048] a. Raw material preparation: Prepare raw materials according to the first layer of non-woven fabric, the second layer of plastic film, the third layer of glass fiber, the fourth layer of PU foam, the fifth layer of glass fiber, and the sixth layer of non-woven fabric, and prepare polyurethane glue;

[0049] b. On-line mixing: transport the prepared raw materials from the six stations of the automatic wet roof production line at a transport speed of 4m / min, and spray polyurethane between the third layer of glass fiber and the fourth layer of PU foam Glue, to compound and cut each layer of raw materials to form a material composite of the roof; composite pressure: 20Pa; temperature: normal temperature; water jet cutting parameters: 350Mpa; glue spraying amount: 120g / m 2 .

[0050] c. Molding: Send the material composite of the canopy into a mold at...

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Abstract

The invention relates to a method for carrying out scale production on a canopy of an upscale sedan, which comprises the steps of preparation of raw materials, on-line blending, die pressing, surface material lamination, cutting, installation of attachments and vanning. Polyurethane (PU) foam is used as a substrate of the canopy and glass fibers are used as an enhancement layer, so that the produced canopy is lightweight and has high rigidity, high sound absorption and recycled performance. Compared with the conventional product produced by a dry sheet forming process, the product produced bythe method has the weight reduced by over 30 percent. Under the condition of the same gram weight, the product has higher rigidity and strength and the sound adsorption performance is improved by over 30 percent so as to greatly improve the acoustic comfort of an automobile. The method for carrying out scale production on the canopy of the upscale sedan has the advantages of high product performance, high environmental performance, high production efficiency and the like.

Description

technical field [0001] The invention belongs to the technical field of auto parts processing, and in particular relates to a large-scale manufacturing method for a high-end car roof. Background technique [0002] The manufacturing method of the domestic car roof, one is a dry process with a high degree of automation, that is, the PU (polyurethane) or PP (polypropylene) sheet is heated in an oven and then the mold is cold-pressed. It is difficult to meet the requirements of high-end car products in terms of quantification, rigidity and sound absorption, and there are irreparable defects; the other is manual wet process. The limitation of production efficiency is low, and the emission of VOC (volatile organic compounds) is far from meeting the requirements of modern production and increasing environmental protection. Therefore, research and development of energy-saving and green environmental protection products with light weight, high rigidity, high sound absorption, high ef...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B32B37/12B32B38/04B32B37/06B32B37/10B32B17/02B32B17/10B32B17/12B32B27/12B29C43/58B60R13/02
Inventor沈晓东
OwnerWUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD