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Manufacture method of automobile air duct

An air duct and automobile technology, which is applied in the field of automobile air duct preparation, can solve the problems of unrecyclable FRP material, heavy air duct, low production efficiency, etc., and achieves the effect of saving time, fewer processes, and improving production efficiency.

Active Publication Date: 2014-09-24
安徽金诚汽车装饰设计开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The product density produced in this way is 1.6X10 3 Kg / m 3 , causing the weight of the air duct to be too heavy, and the FRP material cannot be recycled, resulting in waste and not environmentally friendly; in addition, this repeated coating operation method has low production efficiency, and it takes 100±5min to produce one

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method for preparing an automobile air duct, comprising the following steps:

[0032] (1) Open the upper and lower molds of the mold, and heat and clean the mold; the upper mold is composed of multiple sections, and the lower mold is an integral structure; the upper mold can be wiped clean with a clean lint-free cloth, and the lower mold Use a pneumatic blow gun to clean up debris from one end to the other;

[0033] (2) Coating and grinding: brush the release agent 8# wax on the inner surface of the upper mold for a distance of 200mm, and evenly polish the surface of the upper mold coated with the release agent by rotating circles; then brush in turn Coating and polishing are carried out in sections;

[0034] (3) Temperature measurement: Use a hand-held digital display infrared temperature measuring gun to uniformly measure multiple points on each section of the upper and lower molds, and stop heating when the temperature on the inner surface of the upper and lower m...

Embodiment 2

[0041] A method for preparing an automobile air duct, comprising the following steps:

[0042] (1) Open the upper and lower molds of the mold, and heat and clean the mold; the upper mold is composed of multiple sections, and the lower mold is an integral structure; the upper mold can be wiped clean with a clean lint-free cloth, and the lower mold Use a pneumatic blow gun to clean up debris from one end to the other;

[0043] (2) Coating and grinding: brush the release agent 8# wax on the inner surface of the upper mold for a distance of 200mm, and evenly polish the surface of the upper mold coated with the release agent by rotating circles; then brush in turn Coating and polishing are carried out in sections;

[0044] (3) Temperature measurement: Use a hand-held digital display infrared temperature measuring gun to uniformly measure multiple points on each section of the upper and lower molds, and stop heating when the temperature on the inner surface of the upper and lower m...

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Abstract

The invention provides a manufacture method of an automobile air duct. The manufacture method comprises the following steps: opening an upper mould and a lower mould of a mould, and heating and cleaning the moulds; coating and polishing; measuring a temperature; starting a vacuum pump for sucking gas on the inner surface of the lower mould, laying leather on the inner surface of the lower mould; sealing the space between the surrounding of the leather and the lower mould to form a vacuum state by a packing tape; laying a glass fiber felt which is as large as the leather on the inner surface of the upper mould and fixing; casting a rigid polyurethane foamed material on the leather in the middle of the lower mould, and casting two ends of the lower mould, and then closing the moulds; and opening the upper mould after 15-21 min, closing the vacuum pump, unsealing the packing tape and then taking the foamed air duct out from the lower mould. The manufacture method provided by the invention is simple in manufacture process, less in procedures, and high in production efficiency; the whole production of each product is 30+ / -3 min, and is reduced by about 70 percent in comparison with the conventional production time, the weight is reduced by 62.5 percent, and the production cost is lowered.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a method for preparing an automobile air duct. Background technique [0002] Automobile air duct is an important part of the air conditioning ventilation system. The material of the air duct, the shape of the cross section, the process of the air duct and the requirements for sealing performance all directly affect the air outlet effect and the effect of defrosting and defogging. Thereby the comfort level of the human body is also affected. If the air duct is not good, no matter how good the air conditioner's temperature regulation function is, it will not be able to play a role, and sometimes it will have a negative impact. [0003] At present, it is well known that the air ducts of passenger cars / buses are generally special-shaped pipes made of multiple materials. The base material of the air duct is mostly made of FRP material, and then the surface is covered with leat...

Claims

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Application Information

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IPC IPC(8): B29C70/44
CPCB29C44/32B29C44/3403B29C44/42
Inventor 孟先锋汤云飞牛亚州
Owner 安徽金诚汽车装饰设计开发有限公司
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