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Covering attachment method of automobile door trim board

A technology for car door guards and skins, applied in the field of auto parts, can solve the problems of large and complex surfaces with poor covering effect, low proportion of use, and easy to produce a sense of cheapness, etc., to achieve good visual effects and fit The effect of leveling and reducing mold cost

Inactive Publication Date: 2018-06-12
湖北三江航天江河橡塑有限公司
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  • Description
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AI Technical Summary

Problems solved by technology

[0003] Automotive interior parts are mainly divided into soft bags and hard bags. Among them, hard bags are used less and less because of their surface defects and cheap feeling. The existing soft bag technology is usually to paste foam materials Attached to the substrate, the effect is better for simple and small interior parts, but the coating effect for large and complex surfaces is not good, and the cost is high

Method used

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  • Covering attachment method of automobile door trim board

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Experimental program
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Effect test

Embodiment 1

[0016] Firstly, using PP and PU materials, the plastic skeleton of the car door guard plate and the skin of the corresponding size are obtained through the injection molding process and the extrusion molding process respectively. The injection molding process parameters of the plastic skeleton of the car door guard are: nozzle temperature 200±10°C; injection process: the first section 65mm / s, 80Bar, 80mm; the second section 50mm / s, 80Bar, 60mm; pressure holding process: Speed ​​20mm / s, pressure 80Bar, time 3.5s; cooling time 30s±1s.

[0017] Then clean the outer surface of the plastic skeleton of the car door guard and the inner surface of the epidermis, and spray a uniform layer of self-adhesive, the spray amount is 0.1g / cm 2 . The glue spraying process directly affects the final adhesion effect. If there is too little spraying, the bonding will not be strong enough to cause hollowing, and if too much spraying, it will easily lead to different thicknesses everywhere. The gen...

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PUM

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Abstract

The invention relates to a covering attachment method of an automobile door trim board. According to the covering attachment method of the automobile door trim board, a skin is tightly and flatly attached to an automobile door trim board plastic framework with glue, and then the attractive automobile door trim board interior trim piece good in visual effect is manufactured; the covering attachmentmethod greatly lowers the mold cost and the appearance risk of a product; and the covering attachment method has been applied to a domestic automobile, and good economic benefits are obtained.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a panel covering method for an auto door guard. Background technique [0002] Under the trend of lightweight automobiles, more and more automotive interior parts use engineering plastics to replace the original metal or leather interiors. This method not only reduces weight, but also is more beautiful, low-cost, and easy to process and shape. With the improvement of living standards and changes in consumption concepts, people are pursuing more and more high-end car interiors, and their requirements for surface quality are also getting higher and higher. Visually, it must present a beautiful, atmospheric and high-grade feeling, and any tiny flaws will affect the user experience. [0003] Automotive interior parts are mainly divided into soft bags and hard bags. Among them, hard bags are used less and less because of their surface defects and cheap feeling. The existing soft ba...

Claims

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Application Information

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IPC IPC(8): B29C65/48B29L31/30
CPCB29C65/18B29C65/48B29L2031/3014
Inventor 刘海龙郑刚
Owner 湖北三江航天江河橡塑有限公司
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