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Battery box cover used for new energy automobiles, and preparation method thereof

A new energy vehicle and battery technology, applied in the field of auto parts processing, can solve the problems of increasing the weight of the whole vehicle, low molding, unable to meet the requirements of light weight, etc., and achieve the effect of solving the problem of poor flame retardancy

Inactive Publication Date: 2019-08-23
湖南三合汽车新材料有限公司
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Problems solved by technology

[0003] The existing battery box cover is integrally formed by alloy or sheet metal, and SMC sheet is molded: the battery box cover made of all metal will increase the weight of the vehicle, so it cannot meet the lightweight requirements; the composite material made of SMC molding Compared with the metal battery bo

Method used

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  • Battery box cover used for new energy automobiles, and preparation method thereof

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Such as figure 1 As shown, a battery box cover for new energy vehicles is prepared from the following raw material components in parts by weight: 55-65 parts of phenolic resin, 35-45 parts of epoxy resin, and 50-70 parts of glass fiber cloth.

[0019] A method for preparing a battery box cover for a new energy vehicle, comprising the following steps,

[0020] (1) Preparation of prepreg: mix phenolic resin, epoxy resin and glass fiber cloth according to their respective parts by weight, impregnate and dry to make a pre-laminated layer, and the pre-laminated layer is the pre-impregnated cloth;

[0021] In this step, the dipping machine is used for dipping. After the cloth tape passes through the dipping tank, the excess glue is squeezed out by double-axis rollers, and then it is dried in a curing oven (drying temperature is 80°C, drying t...

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Abstract

The invention discloses a battery box cover used for new energy automobiles. The battery box cover used for new energy automobiles is prepared from, by mass, 55 to 65 parts of phenolic resin, 35 to 45parts of epoxy resin, and 50 to 70 parts of glass fiber cloth. The preparation method comprises following steps: 1, phenolic resin, epoxy resin, and glass fiber cloth are mixed at the weight ratio, and are subjected to dipping and drying to prepare a pre-paved layer, wherein the pre-paved layer is a prepreg; 2, mould pre-heating is carried out, wherein a pre-prepared battery box mould is cleaned,and is subjected to mould pre-heating; 3, compression molding is carried out, wherein the prepreg is introduced into the pre-heated mould for compression molding, and after molding, demoulding is carried out; and 4, examination and packaging are carried out, wherein products obtained through demoulding are subjected to trimming, examination, and packaging. According to the preparation method of the battery box cover used for new energy automobiles, the epoxy modified phenolic prepreg is adopted in compression molding of the automobile battery box cover, so that flame resistance, corrosion resistance, and weight reduction are realized with ensured strength.

Description

technical field [0001] The invention relates to the technical field of auto parts processing, in particular to a battery box cover for a new energy vehicle and a preparation method thereof. Background technique [0002] With the development of new energy electric vehicles, power batteries are the core components of new energy vehicles. environment. As a non-main stress-bearing part of the power battery, the battery box cover has been paid attention to its lightweight requirements on the basis of ensuring certain mechanical properties. The maximum mileage of the vehicle, fiber-reinforced composite materials are more and more widely used because of their high strength, low density, corrosion resistance and impact resistance. At present, the solutions for making the battery box cover by molding process all use metal alloy or SMC sheet. [0003] The existing battery box cover is integrally formed by alloy or sheet metal, and SMC sheet is molded: the battery box cover made of ...

Claims

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Application Information

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IPC IPC(8): C08L61/06C08L63/00C08K7/14
CPCC08L61/06C08L2201/02C08L2203/20C08L63/00C08K7/14
Inventor 谭敦厚王燕张青山林静
Owner 湖南三合汽车新材料有限公司
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