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Manufacturing method of carbon fiber automobile battery box and carbon fiber automobile battery box

A technology of automobile battery and manufacturing method, which is applied in the manufacture of carbon fiber automobile battery box and the field of carbon fiber automobile battery box, and achieves the effect of good mechanical strength and light use weight.

Inactive Publication Date: 2015-11-04
上海耀华大中新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] One of the technical problems to be solved by the present invention is to provide a method for manufacturing a carbon fiber car battery box in view of the existing technical problems of using thermosetting plastic products to prepare car battery boxes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A method for manufacturing a carbon fiber automobile battery box, specifically comprising the following steps:

[0040] 1) Die design for automotive battery box processing:

[0041] The mold flanging should be as smooth as possible, and the flanging should have a width of at least 150mm, and sharp corners should be avoided in the effective cavity of the mold;

[0042] 2) Automobile battery box model processing

[0043] In order to ensure the accuracy of the size, epoxy wood and matching white glue are selected as the materials for the production of the car battery box model, and the product data is added at 1:1 and the car battery box model is trimmed according to the size requirements;

[0044] 3) Automobile battery box mold making

[0045] Apply release wax and release agent on the surface of the car battery box model, and then spray the gel coat evenly. The thickness of the gel coat layer is not less than 0.6mm. The release agent is PVA release agent, and the gel c...

Embodiment 2

[0062] Steps 1) to 4) of the manufacturing method of a carbon fiber automobile battery case of this embodiment are the same as steps 1) to 4) of Embodiment 1, the difference is that step 5) is different, and step 5) is specifically as follows:

[0063] 5) Production of car battery box:

[0064] 5.1) Release treatment: apply Xtend 840 release agent on the cavity surface of the automobile battery box mold, wipe the release agent 3 times, and polish with cotton cloth at an interval of 20 minutes;

[0065] 5.2) Gel coat spraying: use Xinyang 33A gel coat, spray the gel coat layer on the cavity surface of the car battery box mold, the thickness of the gel coat layer is not less than 0.6mm;

[0066] 5.3) Lay Toray T300J carbon fiber plain cloth on the surface of the cavity of the car battery box mold. Glue; the laying amount of carbon fiber plain weave cloth on the surface of the cavity of the automobile battery box mold is 2300g / ㎡; the amount of glue sprayed is 15-25g;

[0067] 5...

Embodiment 3

[0077] The steps 1) to 4) of the manufacturing method of a carbon fiber automobile battery box of this embodiment are the same as the steps 1) to 4) of the embodiments 1 and 2, the difference is that the step 5) is different, and the step 5) is as follows:

[0078] 5) Production of car battery box:

[0079] 5.1) Demolding treatment: punching on the surface of the cavity of the car battery box mold Release agent, wipe the release agent 5 times with an interval of 15 minutes and polish with cotton cloth;

[0080] 5.2) Gel coat spraying: Use Paixin NS-005TS to spray the gel coat layer on the surface of the cavity of the car battery box mold, and the thickness of the gel coat layer should not be less than 0.6mm;

[0081] 5.3) Lay Mitsubishi TR30S carbon fiber plain cloth on the surface of the cavity of the car battery box mold. It is required to be smooth and wrinkle-free, the overlapping positions of the layers are staggered, and the excess cloth is cut off at the corner. ;The...

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Abstract

The invention discloses a manufacturing method of a carbon fiber automobile battery box. The manufacturing method comprises the following steps that firstly, an automobile battery box machining die is designed; secondly, an automobile battery box model is machined; thirdly, an automobile battery box die is manufactured; fourthly, materials are prepared; and fifthly, an automobile battery box is manufactured, the surface of a cavity of the automobile battery box die is coated with a releasing agent and coated with a gel coat layer in a sprayed mode, carbon fiber cloth is laid through 3M spraying glue, vacuumizing is conducted after an auxiliary tool is placed, epoxy modified vinylite is led into, releasing is conducted after curing is finished, trimming and punching are conducted on a product according to a drawing, and the inner face is coated with insulation varnish in a sprayed mode. The invention further discloses the carbon fiber automobile battery box manufactured through the method. By reasonably designing a structure and a laying mode, better mechanical strength and lower use weight can be achieved, and compared with the weight of a battery box with the traditional material, the weight of the carbon fiber battery box is reduced by 44.1%.

Description

technical field [0001] The invention relates to the technical field of preparing auto parts by using composite materials, in particular to a method for manufacturing a carbon fiber automobile battery box and the carbon fiber automobile battery box. Background technique [0002] At present, lightweight is an important direction of automobile development and an important means of automobile energy saving. Car battery boxes generally use thermosetting plastic products, and the density of carbon fiber composite materials is about 20% lower than that of thermosetting plastics, and carbon fiber composite materials have more advantages in terms of mechanical properties. Through reasonable layup and structural design, lower use weight can be achieved , the level of manufacturing and application of domestic automotive carbon fiber composite products is still relatively low, there is less development, design and application of domestic auto parts, and there is a lack of mature auto pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34
CPCB29C70/342
Inventor 吴勤
Owner 上海耀华大中新材料有限公司
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