Repair material for automobile dashboard foaming bodies

A technology for automotive instrument panels and rework materials, applied in the field of auto parts rework, can solve the problems of complex manufacturability and production process, waste of raw material man-hours and equipment, and large dimensions, so as to avoid hoarding of raw materials, save money, and avoid waste Effect

Active Publication Date: 2013-05-08
SHENYANG JINBEI YANFENG AUTOMOTIVE INTERIOR SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The foam body is one of the important components of the automobile instrument panel. The foam body of the automobile instrument panel has a large size, and the foaming process and production process are very complicated. Due to various unpredictable factors, foam products Smaller defects in local areas are inevitable. If repairs cannot be carried out, the entire product will have to be scrapped, resulting in a huge waste of raw materials, man-hours and equipment, thereby increasing the cost of product production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1 A repair material for the foam body of an automobile instrument panel

[0018] (1) The repair materials are composed of group A materials and group B materials;

[0019] A group of materials is composed as follows in parts by weight:

[0020] Polyether polyol 330NG (polytetramethylene ether glycol) 100 parts,

[0021] Diethanolamine (crosslinking agent) 1.8 parts,

[0022] Amine catalyst BL-11 (solution composed of 70% dimethylaminoethyl ether and 30% dipropylene glycol) 0.3 parts,

[0023] Amine catalyst 33LV (solution composed of 33% triethylenediamine and 67% dipropylene glycol) 0.35 parts

[0024] Polydimethylsiloxane (silicone oil) 0.35 parts,

[0025] Polyoxypropylene-oxyethylene copolyether (cell opener) 2.3 parts;

[0026] Group B is isocyanate 3133 (toluene diisocyanate).

[0027] (2) The repair method is as follows: Use a syringe to extract the ingredients of Group A and B according to the weight ratio of 10:1, inject them into a container and...

Embodiment 2

[0028] Example 2 A repair material for the foam body of an automobile instrument panel

[0029] (1) The repair materials are composed of group A materials and group B materials;

[0030] A group of materials is composed as follows in parts by weight:

[0031] Polyether polyol 330NG (polytetramethylene ether glycol) 100 parts,

[0032] Cross-linking agent DEOA (diethanolamine) 2.0 parts,

[0033] Amine catalyst BL-11 (solution composed of 70% dimethylaminoethyl ether and 30% dipropylene glycol) 0.5 parts,

[0034] Amine catalyst 33LV (a solution composed of 33% triethylenediamine and 67% dipropylene glycol) 0.4 parts

[0035] Silicone oil L-3640 (polydimethylsiloxane) 0.4 parts,

[0036] Cell opener 505S (polyoxyalkylene-polysiloxane copolymer) 2 parts;

[0037] Group B material is isocyanate.

[0038] (2) The repair method is the same as in Example 1. The Shore hardness was measured to be 63-65N by experiment, and the reworked material fully complied with the foam har...

Embodiment 3

[0039] Example 3 A rework material for the foam body of an automobile instrument panel

[0040] (1) The repair materials are composed of group A materials and group B materials;

[0041] A group of materials is composed as follows in parts by weight:

[0042] Polyether polyol 330NG (polytetramethylene ether glycol) 100 parts,

[0043] 1.7 parts of cross-linking agent,

[0044] Amine catalyst BL-11 (solution composed of 70% dimethylaminoethyl ether and 30% dipropylene glycol) 0.1 parts,

[0045] Amine catalyst 33LV (a solution composed of 33% triethylenediamine and 67% dipropylene glycol) 0.3 parts

[0046] 0.4 parts of silicone oil,

[0047] 2.5 parts of cell opener;

[0048] Group B material is isocyanate.

[0049] (2) The repair method is the same as in Example 1. The Shore hardness was measured to be 63-65N by experiment, and the reworked material fully complied with the foam hardness requirements.

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Abstract

The invention relates to a repair material for automobile dashboard foaming bodies. The adopted technical scheme is as follows: the repair material is composed of a component A and a component B, wherein the component A is composed of the following ingredients in parts by weight: 100 parts of polyether polyols, 1.7-2 parts of crosslinking agent, 0.4-0.9 part of polyurethane amine catalyst, 0.3-0.4 part of silicone oil, and 2-2.5 parts of hole-opening agent; and the component B is isocyanate. A repair method is implemented through taking the repair material, mixing the component A and the component B in a weight ratio 10:1, fully stirring 10-15 seconds, feeding the mixed material into an injector through inhaling, injecting the mixed material into the defective positions of dashboard foaming bodies until the positions are filled with the mixed material, and curing the mixed material for 0.5-1 hour. According to the invention, defects of foaming bodies can be repaired without affecting the quality of products.

Description

technical field [0001] The invention belongs to the field of rework of auto parts, and in particular relates to a rework material for a foam body of an automobile instrument panel and a repair method for the foam body. Background technique [0002] The foam body is one of the important components of the automobile instrument panel. The foam body of the automobile instrument panel has a large size, and the process and production process of the foam are very complicated. Due to various unpredictable factors, the foam products Smaller defects in local areas are inevitable. If repairs cannot be carried out, the entire product will have to be scrapped, resulting in a huge waste of raw materials, man-hours and equipment, thereby increasing the cost of product production. Contents of the invention [0003] In order to solve the above problems, the present invention provides a repair material for the foamed body of an automobile instrument panel, which can repair defects of the fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/18B29C73/00
Inventor 朱维学林聪王成林刘郁
Owner SHENYANG JINBEI YANFENG AUTOMOTIVE INTERIOR SYST CO LTD
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