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Battery case molding process

A battery case and molding technology, which is applied in the field of battery case molding technology, can solve the problems of complex molds, complex processes, and heavy weight, and achieve the effects of simple molds, simple manufacturing processes, and short processing procedures

Active Publication Date: 2022-03-29
杉盛鸿泰复合材料(武汉)有限公司
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Problems solved by technology

The battery box of an electric vehicle is the power source. In the prior art, the battery case outside the battery box is mostly made of iron or aluminum through stamping, extrusion, casting and other technologies, while iron or aluminum is used to make The resulting battery case is heavy and requires complex molds, and the manufactured battery case also needs anti-corrosion treatment, which is a complicated process

Method used

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Embodiment Construction

[0020] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0021] Please refer to Figure 1 to Figure 2 , the battery casing molding process of the embodiment of the present invention specifically includes the following steps:

[0022] Step a) Cut and weigh the SMC raw material to obtain several SMC raw material sheets that meet the weight requirements, adjust the parameters of the press, set the core temperature to 145°C, set the mold clamping pressure to 480t, and set the cavity temperature Set it to 150°C, set the holding time to 240s, and lay the SMC raw material on the core. Generally speaking, the holding time for a product with a thickness of 1mm is 60 seconds. The thickness d1 of the main body of the battery case is 3mm. The edge thickness d2 means the maximum thickness is 5mm. When the holding time is 180 seconds, there may be a phenomenon that the part that is too thick is not ...

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Abstract

The present invention relates to a molding process for a battery case, which differs in that it comprises the following steps: step a) laying SMC raw material sheets on a core; step b) closing the mold, applying pressure and maintaining pressure; step c) When the pressure holding time reaches 235s, start blowing air to the mold cavity, when the pressure holding time reaches 240s, end the pressure holding, start blowing air to the core while continuing to blow air to the cavity, and blow to the mold cavity The blowing pressure range of the core and the cavity is 0.4Kpa~0.7Kpa. When the end pressure holding time reaches 17s, stop blowing to the cavity, and when the end pressure holding time reaches 18s, stop blowing to the mold cavity. Core blowing; step d) opening the mold; step e) taking out the molded battery case and putting it on a shaping tool, and blowing air on the battery case to make it shaped and cooled. The battery casing produced by the invention is light in weight and corrosion-resistant, and has simple technological process.

Description

technical field [0001] The invention relates to the field of battery case processing, in particular to the molding process of the battery case. Background technique [0002] As an important new energy vehicle, electric vehicles are increasingly recognized by the market. The battery box of an electric vehicle is the power source. In the prior art, the battery case outside the battery box is mostly made of iron or aluminum through stamping, extrusion, casting and other technologies, while iron or aluminum is used to make The resulting battery case is heavy and requires complex molds, and the produced battery case also needs anti-corrosion treatment, which is a complicated process. Contents of the invention [0003] The purpose of the present invention is to overcome the disadvantages of the prior art and provide a molding process for battery casings, the manufactured battery casings are light in weight and corrosion-resistant, and the process flow is simple. [0004] In or...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C51/08B29C51/42B29C51/44
CPCB29C51/08B29C51/427B29C51/44
Inventor 孙海明曹清华付洋李鹏黄栋华
Owner 杉盛鸿泰复合材料(武汉)有限公司
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