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Irregular composite battery box forming die and forming method

A composite material and molding die technology, used in household appliances, other household appliances, household components, etc., can solve the problems of poor product stability and uneven force, achieve good appearance, eliminate uneven force, and improve molding. The effect of pass rate

Inactive Publication Date: 2019-01-11
陕西碳能新材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the prior art, the present invention provides a special-shaped composite material battery box forming mold and forming method, which solves the problem of poor product stability caused by uneven force on each surface of the product during the production process

Method used

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  • Irregular composite battery box forming die and forming method
  • Irregular composite battery box forming die and forming method
  • Irregular composite battery box forming die and forming method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Step 1. Treat the mold: use the mold release agent to wipe the inner surface of the mold body 1 three times, and dry it after each wipe. The interval between each wipe is 5 minutes, and the cumulative thickness of the mold release agent is 0.1mm.

[0048] Step 2, continuous fiber prepreg layering: 12 layers of continuous fiber prepreg are selected for orderly layering on the surface of the mold body 1, and the cumulative thickness is 3 mm to form a prepreg layer 2.

[0049] Step 3, adding auxiliary materials: laying a release cloth and a vacuum film 4 on the surface of the prepreg laminate 2 in sequence, and the edge of the vacuum film 4 is placed on the secondary step of the mold body 1 and is sealed with the mold body 1 by adhesive tape.

[0050] Step 4, negative pressure system: vacuum treatment is performed on the gap between the prepreg laminate 2 and the vacuum film 4, and the vacuum is pumped to 0.2pa.

[0051] Step 5, positive pressure system: cover the mold cov...

Embodiment 2

[0055] Step 1. Treat the mold: Use the mold release agent to wipe the inner surface of the mold body 1 for 2 times, and dry it after each wipe. The interval between each wipe is 3 minutes, and the cumulative thickness of the mold release agent is 0.1mm.

[0056] Step 2, continuous fiber prepreg layering: 8 layers of continuous fiber prepreg are selected for orderly layering on the surface of the mold body 1, and the cumulative thickness is 2 mm to form a prepreg layer 2.

[0057] Step 3, adding auxiliary materials: laying a release cloth and a vacuum film 4 on the surface of the prepreg laminate 2 in sequence, and the edge of the vacuum film 4 is placed on the secondary step of the mold body 1 and is sealed with the mold body 1 by adhesive tape.

[0058] Step 4, negative pressure system: vacuum treatment is performed on the gap between the prepreg laminate 2 and the vacuum film 4, and the vacuum is pumped to 50pa.

[0059] Step 5, positive pressure system: cover the mold cover p...

Embodiment 3

[0063] Step 1. Treat the mold: Use the mold release agent to wipe the inner surface of the mold body 1 for 5 times, and dry after each wipe. The interval between each wipe is 4 minutes, and the cumulative thickness of the mold release agent is 0.1mm.

[0064] Step 2, continuous fiber rapid-curing prepreg layering: 10 layers of continuous fiber prepreg are selected for orderly layering on the surface of the mold body 1, and the cumulative thickness is 2.5 mm to form a prepreg layer 2.

[0065] Step 3, adding auxiliary materials: laying a release cloth and a vacuum film 4 on the surface of the prepreg laminate 2 in sequence, and the edge of the vacuum film 4 is placed on the secondary step of the mold body 1 and is sealed with the mold body 1 by adhesive tape.

[0066] Step 4, negative pressure system: vacuum treatment is performed on the gap between the prepreg laminate 2 and the vacuum film 4, and the vacuum is pumped to 100pa.

[0067] Step 5, positive pressure system: cover ...

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Abstract

The invention provides an irregular composite battery box forming die and forming method. The irregular composite battery box forming die comprises a die body and a die cover plate. a vacuum air pumping hole is formed in one side wall of the die body. the die cover plate is provided with an air inflation hole and a pressure gage. Orderly laying is conducted on the inner surface of the die body with continuous fiber prepreg, and a prepreg accumulation layer is formed and does not cover the vacuum air pumping hole. a release cloth and a vacuum film are laid sequentially on the surface of the prepreg accumulation layer, the vacuum film covers the vacuum air pumping hole, and the edge of the vacuum film and the die body are in seal connection. air is pumped out from the vacuum air pumping hole, and the gap between the prepreg accumulation layer and the vacuum film is pumped to a vacuum. The die cover plate is put on, and a die cavity is filled with air through the air inflation hole till pressure is 0.2-3 Mpa. The die is heated to form a product. The product is formed through pressing with air pressure and the die body, and the problem of poor product stability caused by uneven stresses of all faces of the product in the product manufacturing process is eliminated.

Description

technical field [0001] The invention belongs to the technical field of composite material forming, and relates to a special-shaped composite material battery box forming die and a forming method. Background technique [0002] Composite battery boxes have broad application prospects in new energy vehicles. The existing composite battery box molding methods mainly include RTM process and molding process. Both RTM and molding processes apply pressure through the upper and lower molds to form the product. Due to the surface of the upper and lower molds There are machining errors. When processing special-shaped composite products, due to the complex profile, the mechanical errors of the upper and lower mold surfaces accumulate, and it is impossible to ensure that the force on each complex profile is uniform, so that the force on each surface of the product is uneven, resulting in poor product stability. Therefore, the existing molding process is not suitable for products with com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/48B29C70/54B29C33/10
CPCB29C33/10B29C70/48B29C70/54B29L2031/7146
Inventor 王甫门海泉赵瑜昭耿丽
Owner 陕西碳能新材料有限责任公司
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